I built my current PC about five years ago with an Intel i7-10700K, RTX 3060 Ti, and 32 GB of DDR4 memory. I mainly play games at 1440p, ranging from relatively light titles to demanding releases, and I often stream or run replay-recording software so I can save clips afterward.
Recently, the fans have been ramping up more than they used to during games, and my replay software has started producing choppy recordings—even at lower resolutions such as 900p or 720p. I understand that newer AAA games may eventually require lower settings, but I am surprised to see worse performance in games that have not changed much visually.
Could this be a bottleneck, overheating, software updates, or another hardware issue? What should I check to improve the current system, and is it time to start planning a replacement build?
4 Answers
Give the system a thorough cleaning, especially the CPU cooler, GPU heatsink, case filters, and fans. If temperatures are higher than they used to be, replacing the CPU thermal paste may help. Also check that the GPU is not overheating and throttling. Repasting a GPU is more involved than repasting a CPU because it may require replacing thermal pads, so I would start with cleaning, monitoring, and repasting the CPU cooler before opening the graphics card.
The PC is not automatically obsolete. A 10700K, 3060 Ti, and 32 GB of RAM can still handle plenty of 1440p gaming. Game patches, operating-system updates, background applications, driver changes, and recording software updates can all increase CPU, GPU, memory, or disk usage. Check Task Manager and your monitoring software while recording to see which resource reaches 100 percent, and make sure the recordings are being written to a healthy SSD rather than a slow or overloaded drive.
A system of this age can still perform well if its cooling and software setup are healthy. Before planning a new build, compare current temperatures and clock speeds with the expected values, clean the machine, update or reinstall graphics drivers if necessary, and test the game with replay recording completely disabled. If gaming is smooth without recording, focus on the recording application's encoder settings, capture method, storage drive, and background processes rather than replacing the whole PC.
The louder fans are the first thing I would investigate. Hardware does not normally become slower just because it is five years old, but dust buildup, a clogged heatsink, or dried thermal paste can raise temperatures and cause the CPU or GPU to throttle. Monitor CPU temperature, GPU core and hotspot temperatures, clock speeds, and utilization with a logging tool while gaming. Choppy replay footage may be a separate encoder or storage issue, so also check whether the recording drive is busy or nearly full.
I have tried both GPU and CPU encoding, and the recording problem happens with either one. I will monitor temperatures and look for unusual spikes.

I am going to watch the CPU and GPU temperatures during a gaming session and will clean or repaste the cooler if they are running too hot.