pilouk :
pasow :
how much your frame rate will increase is directly related to how much the CPU is holding back your GPU.
So i could test if my Gpu is near 90 % to see if i have bottleneck ?
yes you can test for bottlenecks, its a bit inpercise though.
open up a GPU load monitoring program like GPUz and something to keep an eye on your CPU load (task manager is largely sufficient). you will need to keep an eye on these as you play some games, try to hit some point where your system really chugs and see whats maxed out and whats not.
just a few far-warnings. most games are single thread performance bound. as such, its more important to look at your CPU load by the individual cores available rather than the overall view windows likes to default to. vRAM usage will almost never be maxed, so don't use it as much of a metric on graphics card performance, unless it is near maxed in which case you should look into a newer GPU. if your GPU load is below 90% when your frame rates tanking, then you are likely CPU bound. and finally, make sure your frame rate isn't being capped by a game that wont render past 60fps or has vsync enabled.