To determine if your CPU is actually bottlenecking your GPU, you can try running a benchmark tool such as UserBenchmark or Cinebench. These tools will test your CPU and GPU performance and give you a score. If your CPU score is significantly lower than your GPU score, then it is likely that your CPU is bottlenecking your GPU.
If you decide to upgrade your GPU, the RX 6600 is a good choice for your system. It is a more powerful GPU than the RX 570 4GB and it should be able to handle most games at 1080p resolution with high settings.
Here are some other suggestions for you:
- Make sure that your BIOS is up to date.
- This can sometimes improve the performance of your CPU and GPU.
- Try overclocking your CPU.
- This can give you a slight performance boost, but be careful not to overclock too much, as this can damage your CPU.
- Make sure that you have enough RAM.
- 16GB of RAM is a good amount for gaming.
- Close any unnecessary programs before playing games.
- This will free up system resources and improve performance.
I hope this helps!
Dipakjadhav