Why Your Games are Stuttering (FPS Drops): Software vs. Hardware Bottlenecks
A sudden stutter can ruin a match. You peek round a corner, the screen freezes for half a second, and you’re looking at the respawn screen.
If your gaming PC or laptop in Wickford is hitching, dropping frames or lagging behind your mouse, a new graphics card isn’t always the answer. FPS means frames per second: how many pictures the PC draws each second. Work through the checks below before you buy a part.
Why does the game stutter after it has been running?
If it runs well for the first 20 minutes and then starts stuttering, heat is a common cause.
What is thermal throttling?
Thermal throttling means the PC deliberately slows the graphics card or processor once they get too hot, often somewhere around 85–90°C, to protect the chips. That sudden slowdown is what you feel as a stutter.
What to do
Look at the fans and the dust on the heatsink. If the fins are clogged or the thermal paste has dried out, the heat can’t escape, and a proper clean with fresh paste often brings the speed back. Check this before you replace the graphics card.
Is a new graphics card the answer?
A gaming PC is only as fast as its slowest part. That slowest part is the bottleneck, and everything else has to wait for it. Upgrading one piece and leaving the rest behind may not help much, and can even make stutter more noticeable.
The processor cannot keep up
A new graphics card paired with a much older processor can end up waiting for instructions, and the game stutters while it waits for the next frame. Aim for a balanced pair rather than the biggest card the case will hold.
The games are still on an old hard drive
A hard drive (HDD) is a spinning disk. Modern games load large textures as you move, and if they’re still on a spinning disk, the drive may not keep up. Moving them to an NVMe SSD, fast storage with no moving parts, usually clears stutters caused by the drive. A Gen4 or Gen5 SSD (newer, faster drive types) only helps if the PC’s slot can run at that speed.
Is 8GB or 16GB of memory enough?
In 2026, 8GB of RAM is tight once Windows and Discord are open, even before a modern game starts. 16GB can get tight too if you keep a browser open on a second screen.
What happens when RAM runs out
RAM is the PC’s short-term memory. When it runs out, Windows uses the drive as extra memory, called virtual memory, which is much slower. The game can freeze for a second or two while the drive catches up.
What to do
Moving to 32GB of memory, as a matched pair so both sticks work together, is a practical way to steady the lowest frame rates.
Could software be causing the stutter?
Sometimes the hardware is fine and a background program is the problem.
Graphics drivers are the software that lets the game talk to the graphics card. Install the latest Game Ready driver from NVIDIA or AMD, because the version from Windows Update can be older.
Programs in the background, such as RGB lighting apps (iCUE or Armoury Crate), extra game launchers and antivirus scans, can take processor time away from the game. Close anything you don’t need before you play.
What next, if you want the PC looked at in Wickford?
You don’t have to buy parts and hope. We can test the PC and tell you which part is most likely holding the frame rate back. If it’s a desktop PC that keeps stuttering, book it through our Wickford desktop PC repair page.
The check is free, and if we can't fix it you don't pay labour. Call 07367 652987. Drop-off is by appointment, or collection is by arrangement. We collect from SS11 and SS12 at no charge. Outside those postcodes, collection is by arrangement. Custom PC builds are there if you’re starting again, or contact us to book the machine you already have. Call 07367 652987.
FAQ
Why does my game stutter after 20 minutes?
Heat is a common reason. Once the graphics card or processor gets too hot, the PC slows them down and the frame rate drops. Dust and dried thermal paste are the first things to check.
Will a new graphics card fix stuttering?
Only if the graphics card is the slow part. An old processor, a spinning hard drive or too little memory can cause stutter just as badly, so find out which one it is before you buy.
What is a bottleneck?
It’s the slowest part in the PC, the one everything else waits for. A very fast graphics card paired with a much older processor is a common example.
Can low RAM cause stuttering?
Yes. When RAM runs out, Windows uses the drive as extra memory, and the game can freeze while that happens.
How do I get a gaming PC checked in Wickford?
Drop-off at the workshop is by appointment. Call 07367 652987 or send a message and we'll confirm a time and the address. We can collect and return it. That's free in Wickford SS11 and SS12, and elsewhere, collection is by arrangement. The diagnostic is free.