Discover What Recording Online Game Clips Asks of a Home PC

Somebody in your squad pulls off a ridiculous play in an online game, the voice chat erupts, and the first thing everyone says is "clip that". Then comes the second thing: "wait, were you recording?" Usually nobody was. Or somebody was, and their frame rate had been quietly suffering for the entire evening without anyone noticing.

Recording gameplay looks free because the button is free. It is not free. It costs a slice of GPU or CPU time, a steady stream of disk writes, and a surprising amount of storage if you leave the defaults alone. I spent two weekends measuring exactly how much, on a fairly ordinary home PC, so you do not have to. The short version is that recording is cheap when configured sensibly and expensive when configured by optimism.

The replay buffer is the feature you actually want

Most players do not need to record entire gaming sessions. They need the last 30 seconds after something good happens. That is what a replay buffer does. The recording software keeps a rolling window of recent footage, usually in memory, and only writes it to disk when you press a hotkey.

Nvidia's overlay, AMD's software, the Xbox Game Bar in Windows, and OBS all offer some version of this. The settings that matter are the same everywhere:

• Buffer length. Between 30 and 90 seconds covers nearly every highlight. Five minutes sounds generous and mostly produces clips you trim back to 40 seconds anyway.
• Where the buffer lives. RAM is faster and spares the drive. A 60 second buffer at 50 Mbps needs about 375 MB, which most 16 GB systems will not miss.
• The hotkey. Choose something you can hit mid-fight without letting go of movement keys. I use a spare mouse button.

A buffer that is always running costs roughly the same as continuous recording in terms of encoding load, but almost nothing in storage. That is the right trade for most people.

GPU encoder or CPU encoder

Every recording has to be compressed in real time. You can hand that job to the dedicated video encoder on your graphics card (NVENC on Nvidia, AMF on AMD, QuickSync on Intel graphics) or to the CPU using a software encoder such as x264.

I tested both on a PC with a Ryzen 5 5600 and an RTX 3060, playing the same multiplayer shooter on the same map. The method was dull on purpose:

1. Play three 10 minute rounds with nothing recording and log the average frame rate.
2. Repeat with the replay buffer on NVENC at 1080p, 60 fps, 50 Mbps.
3. Repeat with x264 on the "veryfast" preset at the same resolution and bitrate.
4. Compare averages and the 1 percent lows, which show stutter better than averages do.

Baseline was 144 frames per second average with 1 percent lows of 98. NVENC dropped that to 139 average and 94 lows, a loss of about 3 to 4 percent. x264 dropped it to 121 average and 71 lows, which is about 16 percent on the average and a noticeable hitch whenever the action got busy. CPU usage climbed from around 55 percent to over 85.

The verdict is not complicated. On any graphics card from the last six or seven years, use the GPU encoder. The hardware block sits mostly idle while you play, and borrowing it is close to free. Software encoding makes sense on a separate streaming PC, or on a 12 or 16 core CPU that has threads to spare, and that is about it.

Bitrate and storage, with actual arithmetic

Bitrate decides both quality and file size, and the math is friendlier than it looks. Divide megabits per second by 8 to get megabytes per second, then multiply by 3,600 for an hour.

• 20 Mbps works out to about 9 GB per hour.
• 50 Mbps works out to about 22.5 GB per hour.
• 100 Mbps works out to about 45 GB per hour.

Now apply that to clips rather than hours. A 30 second clip at 50 Mbps is roughly 190 MB. Save ten of those a night, five nights a week, and you add around 9.5 GB weekly. That is about 40 GB a month, which is half a modest SSD over a year if nobody ever deletes anything. Somebody never deletes anything. Usually me.

For 1080p at 60 frames per second, 30 to 50 Mbps with a modern GPU encoder looks clean even in fast games full of foliage and particles. At 1440p, 50 to 70 is a reasonable range. HEVC or AV1, if your card supports them, give similar quality at roughly 30 to 40 percent less space, at the cost of slightly worse compatibility with older editors and some messaging apps.

The advice to max everything out is wrong

Forum threads love telling people to record at 100 or 150 Mbps "for quality". I tried it. At 1080p, on a 27 inch monitor at normal sitting distance, I could not reliably tell 50 Mbps from 120 Mbps in blind tests on gameplay clips. I got it right 6 times out of 10, which is a coin with mild ambitions.

What I could tell was the cost. The 120 Mbps files were 2.4 times bigger, took longer to upload, and triggered automatic re-compression on every platform I shared them to. The upload site squashed them back down to under 10 Mbps regardless. The extra bits bought nothing anyone could see.

Choose the bitrate for where the clip ends up, not for the number that looks impressive in the settings menu.

There is one exception. If you edit clips heavily, add zooms, or re-encode them several times, a higher source bitrate holds up better through each generation. For a plain highlight sent to friends, it is wasted disk. This is the same lesson as why graphics settings matter more than bigger specs: the right setting beats the biggest one.

Where clips should go, and how to keep them tidy

Save recordings to a different drive from the game if you can. Writing clips to the same SSD that is streaming textures rarely causes problems on NVMe drives, but on an older SATA SSD or a hard drive it can add small stutters in open world games. A cheap 1 TB secondary drive is a perfectly good clip archive.

Then the boring part, which is the part that actually saves you. My routine takes about five minutes on Sunday:

• One folder per game, which most recording tools can do automatically.
• Rename keepers with a date and two words, such as 2026-09-14-triple-clutch.
• Delete everything older than 30 days that was not renamed.
• Move renamed clips to an archive folder once a month.

The rule doing the work is the third one. Unrenamed clips are clips I did not care about enough to name, and I have never once gone looking for one. If you prefer automating cleanup, a few utilities in the best PC tools for keeping a system smooth can clear old files on a schedule.

A sensible starting configuration

If you want one setup to copy tonight, use a 60 second replay buffer stored in RAM, the GPU encoder, 1080p at 60 fps, 40 Mbps, saved to a secondary drive, with a hotkey on a spare mouse button. Play one normal session with a frame counter visible and compare it with a session without recording. If you lose more than 5 percent, check that the encoder really is the GPU one, because a surprising number of tools quietly fall back to software. Then stop tweaking and go play. Laptop owners should also read online game basics for players who game on a laptop, since recording adds heat to a machine that already has little to spare.