For a simple nonstop vMix playlist, use 8GB as the general recommended baseline and treat 16GB as the more comfortable planning target for a dedicated streaming computer. vMix does not publish a special RAM requirement or stability guarantee for every 24/7 YouTube playlist, so neither figure should be read as a promise that a particular machine will run unattended without trouble.
The relevant question is not only how much memory the playlist uses. You also need to account for the number and type of vMix inputs, other applications, recording and graphics work, and the computer’s CPU, GPU and supported memory configuration. A looped video list is a lighter planning case than a production with cameras, overlays and several outputs.
A practical RAM recommendation
vMix’s Supported Hardware page lists 4GB DDR4 as the minimum and 8GB DDR4 as recommended in its general system table. Those are vendor requirements, not measurements of a particular playlist. The table also covers processor, storage, graphics and display requirements, which is a reminder that RAM alone does not determine whether the system can handle a stream.
For a basic playlist and a simple output, start with 8GB as the general baseline and aim for 16GB if you are choosing a machine for regular, dedicated use. The 16GB figure is a cautious planning recommendation drawn from vMix’s broader guidance that 16GB is recommended for most productions. It is not a tested minimum for all playlists, and it does not establish a safe maximum playlist length or continuous uptime.
If you already own a computer with 8GB, check how it behaves with your actual media and output before buying an upgrade. If you are purchasing a computer specifically for this job, choosing 16GB gives you more room for vMix and the rest of the system, but it cannot compensate for an unsuitable CPU, GPU, storage device or network connection.
Before ordering memory, check the exact computer model or motherboard documentation. Confirm supported memory type, module form factor, maximum capacity and available slots. A general search for a “16GB DDR4 RAM kit” is only a starting point: it does not prove that a kit fits a given laptop or desktop, or that it can be combined with the memory already installed.
What the two RAM figures mean
| Planning figure | What it represents | How to use it |
|---|---|---|
| 4GB DDR4 | vMix’s listed minimum on its Supported Hardware page | Treat it as a general minimum specification, not a target for a dedicated nonstop channel |
| 8GB DDR4 | vMix’s listed recommendation in its general system table | Use it as the baseline when assessing a simple playlist setup |
| 16GB | vMix’s general recommendation for most productions, from its PC purchasing guide | Use it as a more cautious planning target, especially when the machine has work beyond one simple playlist |
The 16GB guidance comes from vMix’s purchasing guide, last updated 11 November 2020. That advice is broader than a one-list YouTube channel and should be attributed to its age and scope rather than presented as a current benchmark for every computer. The Supported Hardware page’s 8GB recommendation and the buying guide’s 16GB production advice answer different questions: one is a general system recommendation, and the other is for most productions.
There is no official figure here for RAM per video, per hour of playback or per playlist entry. Do not estimate memory by multiplying the number of files by an invented allowance. vMix says its List input does not require all videos to be loaded at once, but does not publish a RAM saving amount or a benchmark by file count, format, duration or resolution.
Choose the right playlist feature
vMix’s List input combines video or audio files in one input. It supports controls including Auto Next and Loop, and it can use M3U files. The vMix documentation describes Loop as returning the list to its beginning after it reaches the end. For a set of media that should play one after another, List is worth considering because vMix says it does not need every video to be loaded at once.
PlayList is a different feature: it automates sequential switching among vMix inputs, with an option to loop back to the beginning when the sequence finishes. It may fit better if your channel needs to switch between separate inputs, such as different prepared scenes or sources, rather than simply play a folder of videos in one input. Neither feature’s documentation gives a universal memory footprint.
For example, a devotional channel that plays a sequence of prepared bhajan videos could assess whether one List input covers the job. A channel that switches between distinct vMix inputs at planned points may instead need the PlayList feature. In either case, test the exact media and sequence on the machine that will run the stream; the feature description does not tell you the RAM consumed by your particular files.
If playlist ordering and file handling are your main concern, the practical issues are separate from RAM. Our guide to using a playlist file to automate prerecorded YouTube streams in OBS explains a different software workflow, but the same habit applies: verify the sequence and transitions with your own media before relying on it overnight. It is not a direct vMix configuration guide.
RAM is only one part of the workload
A computer running one prepared list and sending one straightforward output is not doing the same work as a production with live camera inputs, animated graphics, multiple outputs or simultaneous local recording. vMix says graphics-card speed affects how many HD inputs and simultaneous recording, streaming and outputs are possible. Its purchasing guide also describes distinct roles for CPU and GPU resources. A larger memory capacity does not remove those limits.
List the actual work you expect the computer to do: number of media inputs, camera feeds, overlays, output resolution, recording, additional displays and other open applications. Then compare that workload with the complete system, not just the installed RAM. If you are also recording a master copy while streaming, for instance, storage performance and available space become part of the plan as well.
A machine with 16GB can still be a poor choice if its processor or graphics capability is inadequate for the inputs and outputs you need. Conversely, a simple setup does not automatically need a high-end production computer just because it runs continuously. There is no controlled configuration comparison in the cited vMix material for the same playlist, so do not treat one RAM number as evidence that one particular build will outperform another.
A guide to reducing CPU load in a looping relaxation stream addresses OBS rather than vMix, but it is useful background when separating processing load from memory capacity. Keep the distinction clear: reducing CPU work does not prove that RAM is sufficient, and adding RAM does not fix every playback or encoding problem.
Looping is not unattended uptime
Loop and Auto Next control playback behaviour. They do not mean that a playlist feature schedules every part of a 24/7 television channel, nor do they promise that a computer, encoder, network or YouTube connection will stay available. vMix describes List and PlayList as useful for basic 24/7 streaming, but also says it does not support time-of-day scheduling for full 24/7 television programming.
That distinction matters if your plan includes different programmes at set local times. A list that returns to its beginning when it ends is not the same as a schedule that selects a morning segment at a particular hour. vMix’s knowledge-base article on scheduling, last updated 17 January 2025, explains this limitation. Check the vMix scheduling guidance against your intended workflow before building a channel around timed changes.
A nonstop channel also depends on practical operating details: media files need to be available, the stream needs to remain connected, and someone should be able to notice and investigate a failure. Plan a way to check the live output and the machine’s state, especially before leaving it through the night. No RAM recommendation is an uptime guarantee.
If you are operating a bhajan channel and comparing a local computer with a hosted machine, our 24/7 bhajan playlist setup guide for an Azure VM covers a different deployment route. Its relevance here is the operating decision: account for where the stream runs and who will monitor it, rather than assuming a memory upgrade alone makes the workflow unattended.
When 8GB may be enough
Eight gigabytes is a reasonable baseline to assess when the work is genuinely simple: a limited set of media in a List input, a straightforward output, and no substantial parallel production tasks. “May be enough” is deliberate. vMix lists 8GB as recommended generally, but it does not publish a specific test showing that every simple 24/7 playlist fits comfortably within that capacity.
If the computer is already available, make a representative trial run before committing the channel to it. Use the actual media formats, sequence, output settings and normal applications. Observe whether playback remains smooth and whether the system is under pressure while doing its real job. A short successful test does not prove long-term reliability, but it can reveal an immediate mismatch before you depend on the setup.
Also check what else consumes memory. A browser with many tabs, file synchronisation, security software, other streaming tools and operating-system tasks all share the installed RAM. Leave room for the computer to do ordinary background work rather than planning as though vMix is the only process running.
If a single playlist is the only production task and you have a supported 8GB machine, there may be no reason to upgrade simply because the channel is continuous. If playback problems occur, diagnose them instead of assuming the cause is memory: inspect CPU and GPU load, media compatibility, storage, network stability and the vMix output. A RAM increase helps only when memory capacity is actually part of the constraint.
When 16GB is the more sensible target
Sixteen gigabytes is a more sensible target when buying a dedicated computer for a channel you expect to operate regularly, or when the same machine has additional tasks. It aligns with vMix’s general recommendation for most productions, while remaining a planning choice rather than a guarantee. The case for it is stronger when you add cameras, graphics, recording, multiple outputs or other applications.
For a small business using prerecorded product demonstrations with titles and a local recording, for instance, the workload is no longer just a playlist. The additional inputs and processes can make the broader 16GB guidance more relevant. You still need to assess processor and graphics capability, as well as disk space and the requirements of the media and output you use.
If you are upgrading an existing computer, a compatible memory addition may be a straightforward hardware path, but do not buy based on capacity alone. Verify whether the system accepts the memory type and module size, whether slots are free, and whether existing modules should be replaced or paired. vMix’s purchasing guide recommends using at least two memory modules on most computers rather than one; treat that as vendor guidance, then check the configuration supported by your own computer.
Check current software and hardware information
The official vMix Supported Hardware page is the place to confirm its current general system requirements. It lists memory alongside other components and should be read as a whole. The official vMix PC purchasing guide provides the 16GB recommendation for most productions, but its processor and graphics examples should not be treated as current buying advice simply because they appear in the guide.
The vMix List documentation describes the playback controls, including looping. Consult the matching documentation for PlayList if you intend to switch among separate inputs. Documentation can explain what a feature does; it cannot tell you the resource use of your particular media collection or establish that your computer will stay online without supervision.
When testing, record the machine model, memory configuration, media set, output settings and other active tasks. That gives you a reproducible baseline if you later change the playlist or add production work. Do not translate a result from one computer into a universal “RAM per stream” rule; the available vendor sources do not provide such a rule.
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
How much RAM do I need for vMix streaming?
vMix lists 8GB DDR4 as recommended in its general Supported Hardware table, while its purchasing guide says 16GB is recommended for most productions. For a simple playlist, regard 8GB as the baseline and 16GB as a more comfortable planning target, not as a tested minimum or uptime promise.
Can vMix loop videos 24/7?
vMix’s List input can play videos back to back and loop, and PlayList can loop a sequence of inputs. These controls support continuous playback, but they do not guarantee uninterrupted streaming or provide full time-of-day scheduling for a television-style channel.
Does a longer playlist need more RAM?
There is no published vMix figure for RAM use by playlist length, number of files, codec or duration. The List feature does not require all videos to be loaded at once, according to vMix, but test your media set on the intended machine rather than assuming a fixed memory saving.
Should I add RAM if the stream stutters?
Not automatically. Check memory pressure alongside CPU and GPU load, media playback, storage and network conditions; more RAM will only help if capacity is part of the problem. Assess the complete workload and computer configuration before buying an upgrade.