I recently upgraded from an RTX 3060 to an RTX 4070 Super, replaced my Ryzen 7 2700X with a Ryzen 7 7800X3D, moved to DDR5 memory, and upgraded from a regular 1440p monitor to a 3440×1440 ultrawide display. In most newer AAA games, I usually get around 100–120 FPS with DLSS set to Quality and Frame Generation enabled. However, turning on ray tracing can drop performance to roughly 30–50 FPS. My CPU usage usually stays around 30–40%. Is this expected because of the ultrawide resolution and demanding settings, or could there be a power or hardware problem? My power supply is rated at 650W, while a parts estimate puts the system below 500W. I generally play with High or Ultra settings and would like to understand whether the performance is normal for this setup.
4 Answers
The exact game and settings matter a lot. A heavily ray-traced AAA game at near-max settings can reasonably land in the 30–50 FPS range at 3440×1440, while lighter or older games may run close to the monitor's refresh rate. Compare several games, monitor GPU utilization and VRAM, and run a benchmark such as 3DMark to make sure the card is performing close to other 4070 Super systems. A result a few percent below average is usually normal.
The 650W power supply is probably sufficient if it is a decent-quality unit and the system is stable. A 7800X3D and 4070 Super should fit comfortably within that capacity under normal gaming loads. I would investigate GPU utilization, temperatures, clock speeds, VRAM usage, and whether DLSS is actually active before suspecting the PSU. Also make sure EXPO is enabled for the memory, though that will not eliminate the large ray-tracing hit.
Check your VRAM usage while testing. The 4070 Super has 12GB, and high or ultra textures combined with ultrawide resolution, ray tracing, and Frame Generation can push some newer games close to that limit. If VRAM usage is hitting the ceiling, lower textures, ray-tracing quality, or a few other settings and see whether the frame-time spikes improve.
That performance sounds broadly normal. A 3440×1440 display renders about 34–35% more pixels than standard 2560×1440, so it is significantly more demanding. Ray tracing can also cut performance heavily, even with DLSS and Frame Generation enabled. Your CPU usage being low is not a problem if the GPU is staying around 80–100% usage; that usually means the GPU is the limiting component, as expected.
Most games use around 9–10GB for me, although a few reach roughly 11.7GB. Those titles tend to perform better after lowering some settings, so VRAM may be part of the issue.