For a simple prerecorded 1080p30 loop encoded in OBS, use 4 vCPU and 8 GB RAM as a cautious starting estimate for a Windows VPS. It is an inference from OBS’s general Windows guidance, not a tested VPS benchmark, universal minimum or guarantee that OBS will stream your chosen workload.
The right size depends on whether the VPS encodes the video, what OBS has to render, and whether the instance can sustain the work and upload the stream. Test with your actual file and settings before relying on it overnight.
A starting estimate, not a specification
OBS Project lists a quad-core CPU as recommended for streaming at 1080p and 8 GB RAM as recommended in its Windows download requirements. Translating that broad guidance into a VPS estimate suggests beginning with 4 vCPU and 8 GB RAM for a straightforward 1080p30 OBS loop. The word “suggests” matters: OBS does not publish a VPS sizing table, and virtual CPUs are not a directly tested equivalent of a particular physical desktop CPU.
OBS also lists a dual-core CPU and 4 GB RAM as minimum figures. Those are not a sensible always-on target simply because the system may launch OBS. The workload includes Windows, OBS, video decoding, audio, any scene elements and the outbound stream. Treating the minimum as a reliable 24/7 operating size leaves little room to discover how the real instance behaves.
The estimate is for one simple scene: a prerecorded video, ordinary audio, no demanding filters or animated overlays, and a 1080p30 output. It is a place to start a test, not a promise of smooth operation. If the channel has several scenes, additional sources, scaling, filters, a higher frame rate or more than one simultaneous stream, the baseline may prove inadequate.
OBS’s general guidance is useful as a first screening question when you compare Windows VPS plans. It cannot tell you how a provider allocates sustained CPU time, whether a virtual graphics device is usable, or how well your particular file and scene perform. Confirm the provider’s Windows and graphics support, then test on the actual instance rather than inferring performance from a plan label alone.
What OBS’s guidance does and does not establish
OBS Project’s system requirements explain that CPU needs vary with encoder, resolution, frame rate and scene complexity. Its Windows download page gives the broad CPU and memory recommendations used for the starting estimate above. Neither page says that a Windows VPS with those figures will stream every workload, and neither is a benchmark of rented virtual machines.
That distinction is important because two machines with the same advertised vCPU count may not offer the same sustained processing capacity. The label does not establish what processor is behind the virtual allocation, how busy the host may be, or how the provider handles long-running work. These are purchasing questions to verify with the provider, not details you can deduce from OBS’s recommendation.
OBS’s requirements also include Windows 10 or Windows 11 and a DirectX 10.1-compatible GPU. A VPS description that lists only CPU and RAM does not show that OBS has the graphics support it expects. Ask how the Windows instance exposes graphics and drivers, and check whether OBS can use the encoder you intend to select. Do not assume that a plan mentioning a GPU means OBS can access a compatible hardware encoder.
The same caution applies to the phrase “recommended”. It helps narrow down a first configuration, but your test decides whether it suits your combination of Windows, OBS, content and connection. A stream that starts successfully can still encounter overload or network trouble after running for longer, so a short launch check is not enough evidence for continuous operation.
Encoding and relaying are different workloads
With OBS encoding, the VPS reads and decodes the source file, composes the scene, then encodes an outgoing video stream. If you use software encoding, the CPU performs that encoding work as well as the other tasks. The chosen encoder and its settings therefore have a direct bearing on whether the instance can keep up.
A relay works differently. If a system forwards an already encoded feed without re-encoding it, it may need less compute than an OBS setup that encodes a new stream. That is a technical inference, not a VPS benchmark established by the cited guidance. Relaying still depends on a suitable feed, a stable connection and a service capable of forwarding it; lower encoding work does not remove those requirements.
Before sizing a VPS, write down which of these jobs it will do. “Loop a video to YouTube” can mean encoding a file in OBS, or it can mean relaying a stream that another system has already encoded. They should not be treated as the same workload when you read CPU estimates.
For an OBS loop, check the settings in the Output tab and identify whether you have selected software or hardware encoding. OBS’s hardware encoding documentation describes the relevant option, but hardware acceleration only helps if the particular Windows VPS exposes compatible graphics hardware, drivers and an encoder OBS can use. If that access is uncertain, test it rather than buying on the assumption that encoding will be offloaded.
What changes CPU and memory needs
The 4-vCPU and 8-GB estimate assumes a deliberately simple case. The following factors are reasons to test more carefully or to consider another configuration; they do not translate into a universal formula for how much extra capacity to buy.
| Factor | Why it matters | What to check |
|---|---|---|
| Encoder | OBS identifies encoder choice as a factor in CPU requirements. Software encoding puts work on the CPU; hardware encoding depends on usable graphics support. | Record the encoder selected in OBS and check that it remains active during the test. |
| Resolution and frame rate | OBS lists both as workload factors. A higher frame rate or resolution changes the work needed to produce each stream. | Test at the exact output resolution and frame rate you plan to keep. |
| Scene complexity | OBS says scene complexity affects CPU needs. Filters, scaling, animated elements and several sources can add work. | Use the production scene, not a blank test scene. |
| Windows and other software | OBS recommends more memory than its stated minimum. Windows and any additional applications also need memory. | Leave room for the operating system and only run software the channel needs. |
| Upload path | YouTube recommends settings that fit the connection and asks creators to test and monitor stream health. | Check the actual upload path; more CPU cannot repair a weak or unstable connection. |
| Concurrent streams | Multiple simultaneous outputs can create additional processing and connection demands. | Test the number of streams you expect to run at once. |
OBS’s x264 streaming guidance is relevant if you use its software encoder: encoding presets involve a balance between processing demand and encoding work. Do not choose a setting based on a label alone. Watch the OBS status during a representative test and check whether the output remains steady.
Memory is less visible than encoding load, but it still matters. OBS lists 4 GB as a Windows minimum and 8 GB as recommended. The gap is a practical reason not to plan an always-on VPS around the minimum: Windows, OBS and other required applications need memory too. This does not mean every loop will use the same amount; observe your own instance with its actual scene open.
YouTube’s ingest bitrate is another separate consideration. Its live encoder settings page lists H.264 recommendations of 5 Mbps for 1080p30 and 6 Mbps for 1080p60, with recommended rates of 14 Mbps and 17 Mbps respectively. Those figures describe the outgoing ingest setting, not the CPU or RAM required to encode it. Consult the current table before setting up a stream, as platform guidance can change.
Check the VPS before buying on its label
A virtual CPU count is one item to compare, not the whole decision. Ask the provider how the plan handles sustained CPU allocation or contention, whether the Windows image and licensing are included, and what graphics or virtual display support the instance provides. If you intend to use a hardware encoder, ask specifically whether OBS can access a compatible device and driver rather than relying on a general GPU description.
Check the upload capacity and policy as well. The stream needs a continuous path to YouTube at the selected output settings. YouTube’s bitrate guidance is not a promise about the VPS network, and a CPU upgrade will not solve insufficient or unstable upload capacity. Confirm that the provider supports the long-running workload you plan to operate and what support is available if the instance disconnects.
If you need a broader view of a Windows-based setup, the guide to running a dedicated 24/7 OBS PC in portable mode covers another way of keeping a channel’s software setup contained. For a VPS route, the Wowza setup guide for continuous YouTube Live addresses a different streaming workflow. Neither changes the need to confirm how your own instance handles encoding, graphics and upload.
Run a representative test at intended settings
A useful test resembles the production stream. Use the actual loop file, the intended OBS scene, the same audio, overlays and filters, the planned resolution and frame rate, and the encoder you expect to leave running. A blank scene or a short clip without the elements that will be used in production does not expose the same workload.
Test the stream privately or in another non-public way that lets you inspect the output before relying on it. YouTube recommends testing in advance with audio and movement similar to the planned broadcast, and monitoring stream health. Follow its current instructions for testing and check the status indicators in both OBS and YouTube Studio. Avoid treating a successful initial connection as the whole test.
During the run, observe whether OBS reports rendering or encoding trouble, whether the selected encoder remains available, and whether the instance’s CPU and memory use remain workable. Check the YouTube stream health and look for dropped frames or interruptions. If a problem appears, record what was happening in the scene and which output settings were active before changing one setting at a time.
Include the network in the test. For a 1080p30 H.264 stream, YouTube’s listed ingest settings can help you choose an output bitrate, but the VPS must still sustain that upload. If health warnings or dropped frames point to the connection, changing CPU or RAM is unlikely to address the cause. Check the provider’s upload path and the selected bitrate against YouTube’s current guidance.
A test should cover enough of the intended routine to expose more than startup behaviour. If the loop switches scenes, changes files or includes moments with more motion, include those moments. A devotional channel with a mostly static image, for example, may behave differently from a study stream with a changing countdown and animated elements. The point is to test what viewers will actually receive, not to assume all prerecorded video loops are alike.
Assess results before continuous operation
If the representative test remains stable, the configured encoder stays available, OBS shows no persistent processing trouble, and YouTube reports a healthy feed, the configuration has evidence behind it for that workload. It is still not a guarantee of uninterrupted future operation. A test verifies the tested arrangement under those conditions; provider contention, connection issues or later scene changes can alter the result.
If CPU load or encoding trouble persists, simplify the scene or reassess the encoder and its settings, then repeat the test. If memory becomes constrained, remove unnecessary applications or consider a plan with more RAM. If OBS appears healthy but YouTube reports connection problems, investigate upload capacity and stability before increasing compute. Change one relevant variable at a time so you can tell which change helped.
Before leaving a channel unattended, confirm the machine can remain logged in and the session behaves as expected under the provider’s Windows configuration. Review how you will notice a dropped stream and what recovery steps are available. A sensible reliability checklist also includes checking what happens after a scene change or reconnect; the troubleshooting guide for OBS disconnects when scenes change is useful if your test exposes that kind of issue.
For channels that rely on a prerecorded sequence, it can also help to compare the VPS workflow with other loop arrangements. The guide to setting up a 24/7 YouTube stream from prerecorded videos in India discusses the broader setup choices. If the recurring burden is keeping a Windows computer on, transferring a file and watching for restarts, StreamNeo removes that particular machine-management task by letting you upload the video and run the YouTube broadcast with your computer switched off.
A decision to commit should be based on the workload you tested, not on a generic “OBS VPS requirements” answer. Keep notes on the exact file, scene, encoder, output settings and any warnings. That makes it easier to distinguish a CPU limit from a graphics or upload issue if you change the stream later.
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 4 vCPU and 8 GB RAM enough for a 24/7 YouTube loop?
It is a cautious starting estimate for a simple prerecorded 1080p30 OBS stream, inferred from OBS’s general Windows recommendations. It is not a tested VPS benchmark, universal minimum or guarantee. Test the actual scene and settings on the instance you plan to use before continuous operation.
Does OBS need a GPU on a Windows VPS?
OBS’s Windows system requirements include a DirectX 10.1-compatible GPU, so check the provider’s graphics and driver support rather than assuming CPU and RAM figures are enough. If you plan to use hardware encoding, verify that OBS can access a compatible encoder on that instance. A general GPU listing does not establish that access by itself.
Does YouTube’s bitrate recommendation tell me how much CPU to buy?
No. YouTube’s bitrate table guides the outgoing stream setting and the upload path; it does not specify VPS CPU or memory requirements. OBS’s encoding workload depends on factors including encoder, resolution, frame rate and scene complexity.
Can I use the VPS to relay a stream instead of encoding it in OBS?
A relay that forwards an already encoded feed without re-encoding may need less compute, but that is a technical inference, not a benchmark for a particular VPS. You still need a suitable feed and a stable upload path. Test the real workflow and check the provider’s support for it before relying on it continuously.