OBS Studio’s Steam listing gives 4 GB of RAM as a minimum and 8 GB as recommended. Those are software-level figures, not a promise that either amount will handle your particular game, scenes or recording workload smoothly.
The practical answer is to consider what your computer must do at the same time, then test that setup. OBS says its basic system requirements do not guarantee that a computer can stream or record; its guidance points instead to factors such as encoder, resolution, frame rate and scene complexity.
OBS’s listed RAM baseline
The OBS Studio listing on Steam states 4 GB RAM minimum and 8 GB recommended for its listed Windows and macOS requirements. These figures are useful as a starting point when checking whether a computer meets the listing’s baseline for the application. They are not a tailored recommendation for gaming while streaming, nor a measured threshold for every production.
There is an important source distinction. The OBS system requirements page does not give a RAM capacity. It says that CPU requirements vary with the encoder, resolution, frame rate and scene complexity, and directs users to OBS’s Auto Configuration Wizard to find settings suited to their hardware. The 4 GB and 8 GB figures belong to the software’s store listing, not to that requirements article.
OBS makes the boundary clear: “Having a compatible system does not guarantee that it is capable of streaming or recording using OBS Studio.” That is why you should read the listing figures as a compatibility baseline rather than a forecast of stream quality. The listing does not tell you how much memory a specific game, browser overlay, recording or other open programme will need alongside OBS.
If you are comparing machines, note their actual memory capacity and what else you expect to run. A computer that opens OBS may still struggle with the complete workload you intend to broadcast. Conversely, a simple production built around a prepared video file is not the same task as playing a demanding game and capturing it at the same time.
Why the baseline does not predict performance
A RAM figure describes only one part of a streaming computer. Streaming performance also depends on the processor’s work, the encoder, graphics hardware, the chosen output settings and whether the system can keep up with every programme running. OBS does not publish a memory-use table for particular games or scene layouts in the cited requirements guidance. There is no evidence-based way to turn the store listing’s minimum or recommended number into a guarantee for your setup.
Think of the difference between opening the streaming application and running a complete broadcast. OBS might be the only demanding programme on a computer while you stream a simple scene. In another setup, OBS shares the machine with a game, a browser full of tabs, a local recording and an editing or chat tool. The latter calls on more of the system at once, but the available guidance does not quantify a RAM amount for that combination.
The same distinction applies to an 8 GB machine. The listing calls that amount recommended for OBS, but this does not mean every stream will be trouble-free at that capacity. A recommendation in a store listing is not a workload-specific promise. Nor does needing more memory automatically mean RAM is the cause of a dropped frame or a poor picture: those symptoms can have other causes, including encoder load, graphics performance or network conditions.
Keep system RAM separate from graphics memory, often called VRAM. A graphics requirement on a streaming guide concerns the GPU, not the capacity of the computer’s main memory. For example, Twitch’s 2K streaming guidance names software, GPU, display and bandwidth considerations, but its surfaced guidance does not establish a system RAM amount. Do not treat a GPU specification as a substitute for a memory recommendation.
How games and scenes change the workload
Start with the work you plan to do, rather than a generic label such as “streaming PC”. Compare OBS running alone with OBS running alongside the exact game or application you want to show. Then consider whether you will also record locally, monitor chat in a browser, play media or keep other tools open. Each addition changes the job your computer is performing, even though the available official guidance does not assign a RAM figure to each one.
Scenes matter too. A basic scene with a camera or a single captured source has a different shape from a production with multiple sources, browser-based overlays, animated elements and transitions. OBS identifies scene complexity as one factor in CPU requirements. That does not prove that a particular scene needs a specified amount of RAM, but it is a reason to test the production you will actually use rather than infer performance from OBS’s baseline.
A useful planning comparison looks like this:
| Your intended use | What to compare on your own computer | What the published guidance establishes |
|---|---|---|
| OBS with a simple scene | Whether OBS stays responsive while broadcasting | The listing’s baseline figures, not a memory forecast for your scene |
| OBS plus a game | Whether the game and broadcast remain usable together | Workload can vary; no RAM amount is specified for this combination |
| Streaming and local recording | Whether recording at the same time changes system behaviour | The requirements page warns that compatibility does not guarantee successful streaming or recording |
| More complex scenes or browser overlays | Whether the final sources behave as expected during a longer test | Scene complexity is named as a factor in CPU requirements, not a quantified RAM requirement |
Use these rows as questions for a rehearsal, not as a claim that each setup has a known memory threshold. If a test shows a problem, close non-essential programmes and repeat the same test before deciding that a RAM upgrade is the answer. Changing one thing at a time makes it easier to see whether the issue is tied to a game, an overlay, recording or another part of the setup.
For an always-on channel, you may not need a gaming computer to produce a long playlist or a fixed visual. You do need to decide where that work will run and what must remain open. A small local setup with one prepared source has different requirements from a desktop that also runs games and production software. If you are planning an always-on computer-based stream, our guide to running OBS for a 24/7 YouTube stream from a cloud desktop explains a different operating model to weigh against keeping the workload on your own PC.
Encoder, resolution and frame-rate considerations
Encoding is another reason RAM capacity cannot answer the whole question. OBS’s requirements page says CPU needs vary according to encoder, resolution, frame rate and scene complexity. Twitch also explains that x264 encoding can place substantial work on the CPU, and that higher resolution and frame rate require more encoding power. Those points describe processing demands; they do not supply RAM measurements for a given output setting.
Resolution and frame rate should therefore be chosen with the whole computer in mind. A higher output setting can affect encoding workload, but it does not follow that adding a certain amount of RAM will resolve a performance limit. If you change resolution or frame rate while testing, record what you changed and compare the result under the same scene and programme load. This gives you a more useful signal than assuming that an 8 GB label, or any other one number, settles the question.
Also keep bandwidth in view. A stream can be limited by the network even when the computer has memory available, and a computer can encounter encoding or rendering limits when the connection is fine. Twitch’s high-resolution and dual-format guidance discusses bandwidth and graphics requirements as well as software and display considerations, while not setting out a general system RAM figure. Read those requirements for the format you intend to use, and avoid translating one category of specification into another.
If you are deciding between settings, begin with a production you can test reliably. Use the settings OBS recommends for your hardware as a starting point, then check that both the output and the computer’s response are acceptable. If you need more demanding output settings, test them with the real game, scene and recording arrangement. A specification sheet cannot reproduce that combination.
Check your system with OBS’s Auto Configuration Wizard
OBS includes an Auto Configuration Wizard intended to suggest settings suited to your hardware and streaming goals. Use it after installing OBS and before fine-tuning settings by guesswork. The wizard does not turn the published RAM baseline into a guarantee, and it cannot know every change you may make to your scene or which other programmes you will keep open.
Run the wizard for the kind of streaming you intend to do, then review the suggested configuration. Treat it as a starting point, not a verdict on whether your computer can handle every production. If you plan to stream a game, test with that game running. If you will record locally or use browser overlays, include those parts in the rehearsal rather than testing OBS in isolation and assuming the results will carry over.
A first test is more informative when you keep the workload steady. Use the same scene, game, output settings and background programmes for a reasonable rehearsal, and note what happened. If you make several changes at once, such as switching encoder, lowering output resolution and closing multiple applications, you may not know which change helped. Change one setting or programme at a time, then repeat the test.
It is also worth checking basic setup details before adding hardware. Confirm that the intended camera, capture source, audio and overlays are configured as expected. A black screen, for instance, may be a capture configuration issue rather than a RAM shortage; our guide to fixing a black screen when screen recording covers that separate problem. Diagnose the symptom before buying components.
What to test before going live
Test the broadcast under the same conditions you expect on air. A short idle test with OBS open does not represent a session in which a game, browser sources, music and a local recording are all active. Open the applications you genuinely need, use the planned scenes and settings, and observe whether the computer remains responsive through the tasks you will perform.
Check several parts of the experience separately. Is OBS responsive when you switch scenes? Does the game or source remain usable? Do the audio and picture behave as expected? If you are recording, inspect the resulting file as well as the live preview. A test that reveals a problem is useful even if the cause is not memory; it helps you avoid discovering an unrelated configuration or capture issue during a real broadcast.
When something goes wrong, reduce complexity methodically. Close programmes you do not need, temporarily simplify the scene, or test without local recording. Repeat the same task after each change. If performance improves after removing one source or application, you have identified a part of the workload worth investigating. If it does not, consider other possible bottlenecks before treating RAM as the answer.
Plan for the operating pattern, not just the first successful launch. An occasional stream, a long session and an always-on broadcast place different practical demands on the person running the channel, even if the PC’s components do not change. For a 24/7 channel, you may prefer not to leave a personal computer doing the broadcasting continuously. Where the specific pain is keeping that computer on and restarting a stream after a drop, StreamNeo can take a prepared uploaded video and run it as a YouTube live stream without your computer left on; it does not change the RAM needs of a local OBS gaming setup.
If you do decide that memory capacity is limiting your own machine, check compatibility before ordering anything. The memory type, physical form factor and supported capacity must match the computer or motherboard. Desktop DIMMs and laptop SO-DIMMs are not interchangeable, and memory generations are not interchangeable either. The OBS listing does not recommend a particular kit, and the cited streaming guidance does not provide a universal upgrade choice. Use the PC or motherboard model and its manufacturer’s specifications to identify supported memory, rather than selecting a kit by capacity alone.
Decide whether a RAM upgrade is the right next step
An upgrade is most useful when you have a concrete reason to believe the current capacity is constraining the work you want to do. Reproduce the problem, close unnecessary applications and simplify the scene. If the same workload still has trouble, look at the system’s own diagnostics and the behaviour of the game, encoder, GPU and network before settling on a cause. Do not assume that every dropped frame, frozen source or poor recording is a memory problem.
Compare your planned workload with what the computer can support. If you only intend to run OBS and a simple video source, assess that actual setup. If you want OBS, a demanding game, local recording and a complex scene simultaneously, test all of them together. Official guidance gives no measured RAM requirement for either combination, so a careful trial on the actual machine is more defensible than a universal prescription.
An upgrade also has trade-offs beyond capacity. You need compatible modules, room in the machine for the intended configuration and confidence that the change addresses the observed limitation. A retailer’s product description can help identify specifications, but verify them against the computer manufacturer’s support information. Avoid buying a kit based on someone else’s stream setup: their games, scenes, encoder and other applications may differ from yours.
If the goal is a continuous channel made from a fixed video rather than a live game or interactive desktop, compare the operating approach as well as the PC specification. You could run OBS locally, use another supported arrangement, or choose a managed way to play a prepared file. Our overview of cloud-hosted OBS for an always-on YouTube stream may help you compare that sort of workload with keeping a local computer running. The right choice depends on how much control you need and what you are broadcasting, not on a single RAM number.
Before committing, compare the operating options on the pricing page. When the file and channel are ready, start free — 24-hour trial, no card.
FAQ
Is 8 GB of RAM enough to stream?
The OBS Studio Steam listing calls 8 GB recommended for the application, but that is not a guarantee for every stream. Whether it is enough for your setup depends on the game or source, scenes, encoder, settings and other programmes you run. Test the intended workload rather than relying on the listing alone.
How much RAM do I need to stream and game at the same time?
The published OBS and Twitch guidance cited here does not give a RAM amount for gaming and streaming together. It does explain that encoding and production factors affect system demands. Test your actual game, scene and stream settings on the same computer before deciding whether an upgrade is needed.
Does higher resolution mean I need more RAM?
Higher resolution can affect encoding and other system demands, but the cited official guidance does not give a RAM figure for each resolution. Twitch’s high-resolution guidance covers other requirements, including graphics and bandwidth. Treat resolution as one setting to test, not as a direct memory formula.
Should I upgrade RAM if OBS drops frames?
Not automatically. Dropped frames can relate to different parts of the system or the network, so first reproduce the issue and simplify one part of the workload at a time. Check the cause and compatibility requirements before buying memory.