FPS Drops Troubleshooting for 240Hz monitor

FPS drops on a 240Hz monitor are usually fixable without new hardware once you know where to look. The advice sharpens once you fix on this exact scenario.

Quick Answer

Most 240Hz fps drops come from four causes: the monitor not actually set to 240Hz in Windows, a CPU or GPU bottleneck, background apps stealing cycles, or thermal throttling. Confirm the refresh rate first, then cap frames a few fps below 240 with an in-game or driver limiter to smooth frametimes. Read this with this exact scenario front of mind.

Confirm the panel is really at 240Hz

A surprising number of 240Hz drops are just the display stuck at 60Hz or 144Hz. Open Windows display settings, set the refresh rate to 240Hz, and make sure you are on a DisplayPort cable rated for the bandwidth. Enable G-Sync or FreeSync in the driver so the panel and GPU stay in sync. For this exact scenario, this is the part that earns its place.

Find the real bottleneck

Use an overlay to watch CPU and GPU load. If the GPU sits at 99 percent during drops, lower settings or resolution; if a single CPU thread is pinned while the GPU coasts, the CPU is the limit and a faster chip or fewer background tasks will help. Aim to keep frametimes flat rather than chasing the highest possible number. Keep this exact scenario in view as you weigh this.

FAQ

Should I cap fps on a 240Hz display?

Yes. Capping a few fps below 240, around 237fps, with adaptive sync on keeps frametimes even and removes tearing without adding noticeable lag.

Does background software cause fps drops?

It can. Browser tabs, overlays and update services steal CPU cycles. Close them and set the game to high priority before blaming the hardware.

How do I know if it is a CPU or GPU bottleneck?

Use an overlay: 99 percent GPU points to the GPU, while one pinned CPU thread with idle GPU points to the CPU. Fix whichever is maxed out.