The best PC for streaming right now is the KOTIN build running an RTX 5070 12GB with a Ryzen 7 9700X and 32GB of DDR5, because its Blackwell-generation NVENC encoder and RAM headroom let it run a AAA title, OBS, Discord, and a browser overlay at once without the frame-time hit you get on lighter systems. That said, the right pick depends on your resolution target and whether you’re streaming demanding shooters or lighter indie and card games — a few of the systems in this batch are genuinely underpowered for the “streaming PC” label despite being marketed that way, and we call those out directly. We compared all eight listings by encoder generation, VRAM and RAM headroom, and CPU core count rather than just GPU tier, since encoding overhead is the part most buyers overlook.

Top picks at a glance

Model Key spec Price Best for
KOTIN RTX 5070 / Ryzen 7 9700X RTX 5070 12GB, 32GB DDR5, 1TB SSD $1,999.99 Best overall single-PC streaming rig
KOTIN Ryzen 7 8700F / RTX 5060 Ti RTX 5060 Ti 8GB, 32GB DDR5, 1TB SSD $1,549.99 1440p streaming with RAM headroom
KOTIN Ryzen 7 8700F / RTX 5060 Ti 8GB RTX 5060 Ti 8GB, 16GB DDR5, 1TB SSD $1,299.99 Best mid-budget entry point
YAWYORE Ryzen 7 5700X / RTX 5060 RTX 5060, RAM/storage unlisted $1,359.99 AM4 buyers wanting modern NVENC
ZYNEEX Ryzen 5 5500 / RTX 3050 RTX 3050 6GB, 16GB DDR4, 1TB SSD $859.99 Entry-level 1080p60 streaming
STGAubron Core i7 / RTX 2060 RTX 2060 6GB, 32GB RAM, 2TB SSD $661.52 Best RAM and storage per dollar
YAWYORE Ryzen 5 5600GT iGPU only, 16GB RAM, 1TB SSD $689.99 Light/indie titles only, not AAA streaming
STGAubron Core i5 / GTX 750 Ti GTX 750 Ti 4GB, 16GB RAM, 512GB SSD $379.99 Office use, not a real streaming rig

KOTIN Prebuilt Gaming PC RTX 5070 12GB, Ryzen 7 9700X, 32GB DDR5, 1TB SSD

This is the system we’d point most streamers toward first. The Ryzen 7 9700X is an 8-core, 16-thread Zen 5 chip, which matters here because encoding isn’t just about the GPU — background tasks like Discord’s audio processing, browser-based alert widgets, and chat overlays all compete for CPU time, and an 8-core chip has room to spare. Paired with it is an RTX 5070 12GB on Nvidia’s Blackwell architecture, which carries the 9th-generation NVENC encoder with AV1 support, the newest encode hardware in this entire lineup.

Based on this configuration, we’d estimate 1440p high-to-ultra settings landing around 75-90 fps in something like Cyberpunk 2077 with DLSS Quality while broadcasting at the same time, since NVENC runs on a separate silicon block from the render pipeline and typically costs only 3-5% of your frame rate when active. In Valorant or Apex Legends at 1080p, this pairing should comfortably clear 200+ fps for anyone running a high-refresh monitor on the side. These numbers are estimates built from the listed hardware, not measurements from our own bench run of this exact SKU.

The 32GB of DDR5 is the detail that separates this build from the two other RTX 5060 Ti KOTIN systems in this list — it’s enough to run a demanding game, OBS with multiple sources, a Discord call, and a browser with a StreamElements overlay open simultaneously without Windows starting to page to disk. The 1TB SSD is the one soft spot: modern AAA installs run 80-120GB each, and if you’re also recording local VOD backups of your streams, that space fills up within a handful of titles.

Cooling and PSU brand aren’t detailed in the listing, which is typical at this price tier from smaller system integrators. If exact fan count or 80 Plus certification matters to you, it’s worth asking the seller directly before checkout rather than assuming parity with boutique brands.

  • Pros
  • Newest NVENC generation in this lineup, with AV1 support for platforms that accept it
  • 32GB DDR5 removes the multitasking bottleneck that limits cheaper builds here
  • Ryzen 7 9700X has enough cores to absorb background streaming software without dropping frames
  • AM5 platform keeps a CPU upgrade path open for future Ryzen generations
  • Cons
  • Single 1TB SSD fills up quickly once you add VOD recordings on top of a game library
  • PSU and cooler specifics aren’t published, so verify before buying if that matters to you
  • Priced near $2,000, it’s the most expensive system in this comparison

Who it’s for: streamers who want one PC to handle a demanding AAA title and full encode workload at 1440p without a second machine or capture card.

KOTIN Gaming PC Desktop, Ryzen 7 8700F, RTX 5060 Ti 8G, 32GB DDR5, 1TB SSD

This is functionally the same GPU and CPU as the cheaper KOTIN listing below, with the RAM doubled to 32GB. The Ryzen 7 8700F is an 8-core, 16-thread Zen 4 chip without integrated graphics, so all display output runs through the RTX 5060 Ti. That GPU carries the same 9th-generation Blackwell NVENC encoder as the RTX 5070 above, meaning the actual encode quality per bitrate is identical — the difference between this system and the flagship KOTIN build is raw render horsepower, not encode capability.

Based on this spec sheet, expect 1440p high settings around 70-85 fps in most current AAA titles, with the 8GB VRAM buffer becoming the more likely bottleneck than the CPU once you factor in texture streaming for OBS’s browser sources running alongside the game. 1080p performance for competitive titles should be well north of 150 fps, comfortably supporting a 144Hz or 165Hz monitor.

The 32GB DDR5 here does real work: it’s the difference between OBS occasionally hitching when Discord processes a screen share and running cleanly through a full session. Compared to the 16GB version of this same chassis, this is the version we’d recommend if you already know you multitask heavily while live.

The 8GB of VRAM is workable but not generous for 1440p ultra settings in newer, more VRAM-hungry titles — pushing texture quality all the way up while also running a webcam overlay and browser source can bump against that ceiling in specific games, showing up as texture pop-in rather than outright crashes.

  • Pros
  • Same Blackwell NVENC encoder as the flagship pick, at a lower price
  • 32GB DDR5 handles heavy OBS scene setups without stutter
  • Strong 1080p esports performance for dual-purpose gaming and streaming
  • Cons
  • 8GB VRAM can get tight at 1440p ultra with multiple overlay sources active
  • Costs roughly $250 more than the identical system with 16GB RAM, for RAM alone
  • No listed second M.2 slot for expanding storage internally

Who it’s for: buyers who want the KOTIN RTX 5060 Ti platform but know they’ll run heavier multitasking setups than a casual streamer.

KOTIN Gaming PC Desktop, Ryzen 7 8700F, RTX 5060 Ti 8GB, 16GB DDR5, 1TB SSD

This is the budget-conscious version of the build above, with 16GB of DDR5 instead of 32GB. The Ryzen 7 8700F and RTX 5060 Ti combination is unchanged, so you still get the newer Blackwell NVENC encoder and the same 8-core CPU handling background load — the tradeoff here is purely about memory headroom.

Estimated performance mirrors the 32GB version closely at the GPU-bound resolutions: around 70-85 fps at 1440p high settings in demanding titles, and well over 150 fps at 1080p in competitive shooters. The difference shows up less in raw fps and more in how the system behaves under multitasking load — 16GB is enough for game plus OBS plus a lightweight browser tab, but adding Discord video, several browser-based widgets, and Chrome with a dozen tabs open is where this configuration starts leaning on Windows’ page file.

For a streamer running a lean OBS setup — a couple of static overlays, no browser-heavy alert stack — 16GB is genuinely fine, and the roughly $250 saved versus the 32GB version is real money that could go toward a better microphone or a capture card instead.

Elena Marchetti tested a similarly-specced RTX 5060 Ti system on her dual-PC streaming rig and found that 16GB starts to show its limits specifically when OBS’s browser source renderer is combined with a Discord screen-share call — the kind of setup a growing channel adds over time, not one it starts with.

  • Pros
  • Same modern NVENC encoder as the pricier KOTIN configurations
  • Lowest price of the three RTX 5060 Ti-based systems in this list
  • 8-core CPU is still enough for a lean streaming setup
  • Cons
  • 16GB RAM is a real ceiling once your OBS scene collection grows more complex
  • 8GB VRAM shared between game rendering and streaming overlay sources
  • Single 1TB drive, same storage constraint as the rest of the KOTIN lineup

Who it’s for: streamers just starting out who want modern encode hardware without paying for RAM headroom they don’t need yet.

YAWYORE Gaming PC, AMD Ryzen 7 5700X, GeForce RTX 5060 Desktop Computer

This build pairs an older AM4-platform CPU with a current-generation GPU. The Ryzen 7 5700X is an 8-core, 16-thread Zen 3 chip released several years before the RTX 5060 it’s paired with, but it still has enough threads to run background streaming software without starving the game. The RTX 5060 itself is a Blackwell-generation card with 8GB of VRAM and the same 9th-gen NVENC encoder found in the pricier KOTIN systems, which is the main reason to consider this listing at all.

The listing title doesn’t specify RAM capacity or SSD size, which is worth flagging directly — at $1,359.99, that’s an unusual omission for a system in this price bracket, and we’d recommend confirming both specs with the seller before buying rather than assuming parity with the RTX 5060 Ti systems above.

Based on the GPU and CPU alone, expect performance slightly below the RTX 5060 Ti systems: roughly 65-80 fps at 1440p high settings in demanding titles, and strong 1080p esports numbers well above 150 fps. NVENC encode quality per bitrate should be effectively identical to the RTX 5060 Ti builds, since it’s the same encoder generation.

The AM4 platform is the other consideration here. It’s a mature, well-supported socket, but AMD has moved its current-generation chips to AM5, so this build has a shorter CPU upgrade runway than the AM5-based KOTIN systems in this comparison.

  • Pros
  • Same modern Blackwell NVENC encoder as pricier AM5 systems
  • Ryzen 7 5700X has enough threads for background streaming software
  • Competitive price for a current-generation GPU
  • Cons
  • RAM and storage capacity are unlisted — confirm directly before purchase
  • AM4 platform is near the end of its practical upgrade life
  • Likely DDR4 memory, a generation behind the DDR5 KOTIN builds

Who it’s for: buyers already invested in AM4 who want a modern encoder without switching platforms yet, provided they confirm RAM and storage first.

ZYNEEX Prebuilt Gaming Desktop PC, AMD Ryzen 5 5500, GeForce RTX 3050 6GB, 16GB DDR4 3200MHz RAM, 1TB NVMe SSD

This is the clearest entry-level option in the lineup. The Ryzen 5 5500 is a 6-core, 12-thread Zen 3 chip, one tier down from the 8-core parts elsewhere in this list, and the RTX 3050 6GB sits on Nvidia’s older Ampere architecture with 7th-generation NVENC — solid, reliable hardware encoding, but without AV1 support and a step behind the Blackwell cards above in encode quality-per-bitrate.

Estimated performance lands around 60-75 fps at 1080p high settings in current AAA titles, with the 6GB VRAM buffer being the more likely constraint than the CPU once OBS and a browser overlay are added on top of the game. This isn’t a 1440p streaming rig; treat it as a 1080p60 machine and it performs reasonably within that lane.

16GB of DDR4 is workable for a lean streaming setup but leaves little room to grow — adding Discord video calls, several browser-based alert widgets, and a game with a high memory footprint at the same time is where this configuration starts to strain.

The 6-core CPU is the other limiting factor if you ever need to fall back to x264 software encoding, say if NVENC quality isn’t cutting it for a specific scene — six cores split between game and CPU-based encoding shows a more noticeable frame rate hit than the 8-core systems above.

  • Pros
  • Lowest price point among the RTX-based systems here
  • Hardware NVENC still handles 1080p60 encoding cleanly
  • Compact, straightforward build for a first streaming PC
  • Cons
  • 6GB VRAM limits headroom once overlays and browser sources are added
  • 16GB DDR4 has little room to grow into a heavier OBS setup
  • 6-core CPU is thinner insurance if you ever need CPU-based encoding

Who it’s for: streamers on a tight budget targeting 1080p60 on Twitch with a fairly simple OBS scene collection.

STGAubron Gaming PC Desktop, Core I7, RTX 2060 6G, 32G RAM, 2TB SSD

This system leads with RAM and storage rather than GPU generation. The listing doesn’t specify which Core i7 generation is inside, which matters more than usual here since Intel has spanned several architectures under that label — we’d recommend confirming the exact CPU model before buying. The RTX 2060 6GB is a Turing-architecture card, meaning it carries 7th-generation NVENC without AV1 support, a generation behind the Blackwell cards in this list but still a genuinely capable hardware encoder for 1080p streaming.

Estimated performance sits around 55-70 fps at 1440p medium-to-high settings, or comfortably higher at 1080p, in most current titles — the RTX 2060’s age shows up more in raw rasterization than in encoding, since NVENC quality has improved less dramatically generation-to-generation than render performance has.

Where this build stands out is the 32GB of RAM and 2TB SSD at a sub-$700 price, both of which are usually reserved for systems costing several hundred dollars more. For a streamer who values not running out of storage for VODs and game installs, and who wants multitasking headroom without upgrading RAM later, this is genuinely good value.

The 6GB VRAM buffer is the tradeoff — it’s the same ceiling as the ZYNEEX system above, and it will show up as texture streaming hitches before the GPU’s core runs out of compute power, particularly at 1440p with a full OBS overlay running.

  • Pros
  • 32GB RAM and 2TB SSD are unusually generous for the price
  • Turing NVENC still handles 1080p60 streaming reliably
  • Strong value if storage and multitasking headroom matter more to you than peak fps
  • Cons
  • CPU generation isn’t specified — confirm before buying
  • RTX 2060 lacks AV1 encoding support
  • 6GB VRAM limits 1440p ultra settings while streaming

Who it’s for: budget streamers who prioritize RAM and storage headroom over chasing the newest GPU generation.

YAWYORE Gaming PC Desktop Computer AMD R5 5600GT 16GB 1TB NVMe Towers WiFi

This one needs a direct flag: the listing doesn’t include a discrete GPU. The Ryzen 5 5600GT is a Zen 3 APU with an integrated Radeon iGPU, which is fine for desktop use, light 2D titles, or older esports games at low settings, but it is not built for streaming current AAA titles. There’s no dedicated NVENC or AMF encoder on this chip’s integrated graphics in the way the discrete-GPU systems above have, so any encoding here would fall to the AMD Video Coder Engine inside the iGPU or CPU-based x264 — both of which compete directly with the very limited graphics headroom this system has for the game itself.

To be clear about what this system can realistically do: light indie titles, retro emulation, card and board games, or a webcam-facing “just chatting” style stream at 720p-1080p with minimal encode demands are within reach. Anything with real GPU load, especially at 1080p high settings or above, is not.

16GB of RAM and a 1TB NVMe SSD are reasonable specs on their own, and this would make a fine general-purpose or light-gaming PC. The mismatch is specifically with the “streaming PC” framing this keyword implies — buyers searching for a PC to stream modern games should look elsewhere in this list.

  • Pros
  • 16GB RAM and 1TB NVMe SSD are solid for a non-gaming budget build
  • Low power draw and quiet operation without a discrete GPU
  • Fine for retro, 2D, or very light indie titles
  • Cons
  • No discrete GPU means no dedicated hardware encoder for demanding titles
  • Can’t realistically run or stream current AAA games at playable settings
  • Mismatched for the “PC for streaming” keyword despite showing up in that search

Who it’s for: buyers streaming very light, low-GPU-demand content, not general AAA streaming — most readers should look at the RTX-based systems above instead.

STGAubron Gaming PC Desktop, Core I5, GTX 750Ti 4G, 16G RAM, 512G SSD

This is another system worth flagging plainly rather than reviewing as a legitimate streaming PC. The GTX 750 Ti is a Maxwell-architecture card that launched in 2014; it predates NVENC’s modern encoding quality entirely, and while it technically has an early hardware encoder, it isn’t built for streaming current games at any meaningful quality. The 4GB of VRAM alone rules out most current AAA titles at playable settings, before encoding is even a consideration.

Realistically, this system would need to fall back to CPU-based x264 encoding to stream anything, and doing that alongside actually rendering a demanding game on a decade-old GPU means both the game and the stream quality suffer simultaneously. The unspecified Core i5 generation adds another unknown — without knowing which generation, it’s hard to say how much CPU headroom is even available for that x264 fallback.

16GB of RAM and a 512GB SSD are adequate specs for general computing, and at $379.99 this is clearly priced as an entry office or light-use PC rather than a gaming or streaming rig. The category mismatch here is significant enough that we’d steer almost every reader searching “best PC for streaming” toward a different listing in this article.

  • Pros
  • Lowest price in this entire comparison
  • 16GB RAM is workable for general desktop use
  • 512GB SSD is fine for an OS-plus-browser workload
  • Cons
  • GTX 750 Ti’s 4GB VRAM can’t run most current AAA titles at playable settings
  • No modern hardware encoder capable of quality streaming output
  • CPU generation unlisted, adding further uncertainty about encode fallback performance

Who it’s for: only appropriate for streaming extremely light content like retro games or card games on a near-zero budget; most buyers should treat this as a non-gaming PC and look elsewhere on this page.

How we tested and picked

Elena Marchetti, our Streaming & Creator Editor, evaluated this lineup on a dual-PC streaming rig equipped with capture-card benchmarking and audio measurement tools, which she uses regularly to compare encode quality and multitasking overhead across different hardware tiers. Since these are prebuilt listings rather than systems physically in hand, the fps and thermal figures throughout this article are estimates built from each system’s documented CPU, GPU, and memory configuration, cross-referenced against known performance patterns for those same components in comparable builds — not numbers pulled from direct benchmark runs of these exact SKUs.

The evaluation prioritized four things in order: encoder generation (since NVENC quality-per-bitrate has genuinely improved across Nvidia’s Turing, Ampere, and Blackwell generations, while AMD’s AMF encoder still trails on comparable bitrates), VRAM and RAM headroom for running OBS alongside a game and chat overlay, CPU core count for absorbing background software like Discord and browser-based alert widgets, and platform longevity for buyers who plan to upgrade a component down the line rather than replace the whole system.

Two listings in this batch — the Ryzen 5 5600GT system with no discrete GPU, and the GTX 750 Ti build — were flagged directly rather than scored against the others, since neither has the hardware to support the “PC for streaming” framing implied by their listing titles. We’d rather tell you that plainly than pad out a positive review for hardware that doesn’t fit the intent behind this search.

What to look for in a streaming PC

Encoder type: NVENC, AMF, or x264

The single biggest factor in how well a PC streams isn’t raw GPU power — it’s whether it has a dedicated hardware encoder and which generation that encoder is. Nvidia’s NVENC runs on separate silicon from the GPU’s render cores, meaning it can compress your stream in parallel with rendering the game, typically at a cost of only 3-5% of your frame rate. AMD’s equivalent, AMF, has closed most of the quality gap on recent RDNA3 and RDNA4 cards, but on older AMD GPUs it still tends to need a noticeably higher bitrate than NVENC to hit comparable visual quality. If a system has neither — as with an integrated-graphics-only build — encoding falls to the CPU via x264, which directly competes with the game for processing power and is the reason low-core-count systems without a discrete GPU struggle to stream anything demanding.

Encoder generation matters within NVENC itself, too. Turing (RTX 20-series) and Ampere (RTX 30-series) both offer solid 7th-generation NVENC without AV1 support. Blackwell (RTX 50-series) moves to 9th-generation NVENC with AV1 encoding, which delivers better quality at a given bitrate — useful on platforms like YouTube that accept AV1 ingest, though Twitch’s broader AV1 support is still limited as of this writing, so the practical benefit depends on where you stream.

VRAM and system RAM headroom

VRAM does double duty on a streaming PC: it holds the game’s textures and also buffers whatever OBS is compositing, including webcam feeds and browser-based overlay sources. A 6GB card can run into texture streaming hitches at 1440p once a full OBS scene is layered on top of a demanding game, while 8GB and up gives more comfortable headroom. System RAM works similarly — 16GB covers a lean setup, but 32GB is the safer target if you run Discord video calls, several browser-based alert widgets, and a memory-hungry game simultaneously, since running low on RAM causes Windows to page to disk, which shows up as stutter during exactly the moments you don’t want it.

CPU core count for background load

Even with hardware encoding handling the heavy lifting, a streaming session still runs several CPU-hungry processes at once: Discord’s audio processing, a browser tab or two for chat and overlays, OBS’s own scene compositing, and the game itself. Six-core CPUs handle a lean setup fine but show their limits faster once you stack more software on top; 8-core chips give meaningfully more headroom, which is why every system we’d recommend without reservation in this list carries at least eight cores.

Single-PC versus dual-PC streaming

Most streamers through 1440p resolution do fine on a single well-specced PC with hardware NVENC, since the encoder runs independently of the render pipeline. A second, dedicated encoding PC becomes worth the added cost and capture-card complexity once you’re running heavy scene compositing with multiple video sources, doing 4K capture and encode simultaneously, or using a CPU-bound encode preset for maximum visual quality that would otherwise compete directly with your game for resources. If you’re weighing that decision, our guide to the best dual PC streaming setup walks through when the added cost actually pays off.

Storage for game installs and VOD backups

A single 1TB drive, common across several systems here, fills up faster than it looks like it should once you account for 80-120GB AAA installs plus local recordings of your streams for backup or editing into clips. If you plan to keep VODs locally rather than relying solely on your streaming platform’s storage, budget for either a second internal drive or an external one from the start rather than discovering the shortfall mid-download — our best SSD for video editing guide covers drive speed and capacity tradeoffs for exactly this use case.

Mistakes buyers make

Chasing GPU tier while ignoring encoder generation is the most common mistake. Two GPUs can render games identically but stream very differently if one has a newer NVENC generation — the encoder, not just the render performance, is what determines how clean your broadcast looks at a given bitrate.

Buying based on the word “gaming” or “streaming” in a listing title without checking whether the system actually has a discrete GPU. Several budget systems, including ones in this very comparison, use integrated graphics with no dedicated encoder, which makes them unsuitable for streaming anything beyond very light content.

Underestimating RAM needs for a real-world OBS setup. 16GB looks fine on a spec sheet next to a game’s minimum requirements, but a real streaming session adds Discord, a browser, and OBS’s own overhead on top of the game, and that’s where 16GB starts to show its ceiling.

Assuming a 6GB or smaller VRAM buffer is fine because the game itself doesn’t need more. VRAM has to hold OBS’s compositing buffer too, and that overhead is easy to overlook until you’re mid-stream and seeing texture pop-in that wouldn’t happen if you were just gaming without broadcasting.

Ignoring platform longevity. AM4 and older Intel sockets can still be good value today, but buying into a platform near the end of its upgrade life means your next CPU upgrade likely requires a full new build rather than a drop-in chip swap.

Skipping the question of what CPU generation or PSU brand is actually inside a budget listing. Several systems in this comparison list a processor family without specifying generation, or omit PSU details entirely — worth a direct question to the seller before paying, especially on anything above $600.

Verdict

For most streamers, the KOTIN RTX 5070 12GB / Ryzen 7 9700X / 32GB DDR5 system is the strongest overall pick: newest NVENC generation, enough RAM to multitask without stutter, and an 8-core CPU that won’t choke on background software. If you want to save several hundred dollars without giving up the same encoder generation, the KOTIN RTX 5060 Ti / 32GB DDR5 build is the better value choice, while the 16GB version of that same system is fine for a lean OBS setup on a tighter budget. Skip the Ryzen 5 5600GT and GTX 750 Ti systems entirely unless your content is genuinely light — neither has the hardware to support real AAA streaming, regardless of how they’re marketed. Once the PC itself is sorted, pairing it with a proper streaming microphone and a capture card for console or second-source input will do more for your production quality than any further GPU upgrade.

Frequently asked questions

What specs matter most for a PC built for streaming?

Encoder generation matters more than raw GPU horsepower, since a hardware NVENC or AMF engine offloads encoding so your frame rate barely drops while live; after that, prioritize at least 8GB of VRAM, 32GB of system RAM if you multitask heavily with browser sources and Discord, and a CPU with at least 8 cores so background apps don’t steal cycles from the game thread.

Do I need a dedicated GPU encoder like NVENC to stream well?

You don’t strictly need one, but without it your CPU has to run x264 software encoding alongside the game, which noticeably cuts frame rate on anything below an 8-core chip; every current Nvidia GPU from the RTX 20-series up includes NVENC, so any of the RTX-based systems here handle this automatically without extra software tuning.

Is 16GB of RAM enough for a streaming PC?

16GB will run OBS and a single game, but it gets tight fast once you add Discord, a browser with alert widgets and chat, and a game that itself wants 12-16GB; 32GB gives real headroom and avoids the stutter that shows up when Windows starts paging to disk mid-stream.

Should I stream and game on one PC or use a second PC to handle encoding?

A single well-specced PC with hardware NVENC is fine for most streamers up through 1440p, since the encode engine runs separately from the render engine; a dual-PC setup only pays off once you’re running heavy scene compositing, multiple capture sources, or a CPU-bound encode preset that would otherwise fight your game for resources.

What bitrate should I use streaming to Twitch versus YouTube?

Twitch caps most accounts around 6000kbps regardless of your upload speed, so 1080p60 at 6000kbps with NVENC is close to the practical ceiling there; YouTube allows meaningfully higher bitrates for 1080p and 1440p streams, so if your upload speed and PC can support it, YouTube is the better platform for pushing sharper detail at the same resolution.