Question FPS issues despite no obvious bottleneck

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Hey I’m currently experiencing some fps issues and would really appreciate some advice, GPU and CPU temps less than ~60°C and usage isn’t being pushed past ~ 50%, RAM was at ~95+% so i upgraded to 32GBs, and the issue was initially gone and Overwatch was running around the 600fps cap. For some reason it’s back to running around 180-320 fps with occasional stutters (not just OW, same issue with MW3, Valorant, EAFC) . I’m beginning to think it may be a gpu clock issue as in game it was showing around 1400hz 180-280fps but in the loading screen gpu clock was closer to 2500hz and was running 1400fps (valorant)

MSI B450 Tomahawk Max
Ryzen 7 5800x
7900 XTX
32gb ddr4 3600mhz (patriot viper steel)
2TB HDD
500GB SSD
1440p 360hz AW2725DF
1080p 144hz msi G241

 

[Lutfij]

You forgot to mention the make and model of your PSU and it's age. BIOS version for your motherboard? What GPU were you using prior to the 7900XTX ?

 

[Merge.-]

You forgot to mention the make and model of your PSU and it's age. BIOS version for your motherboard? What GPU were you using prior to the 7900XTX ?

Ah yes apologies,

PSU: MSI 1000W GOLD FM MEG A1000G (had for just over a year)

I just updated my bios if thats what you’re asking, as I was reading that could be the issue, so whatever its on whatever the latest is.

Before this GPU I was using a 5600 xt