Well, i have never tried a game that a ps3 or xbox one could handle on one of my pcs, but even for a game such as transistor that requires this : MINIMUM:
OS: Windows 7 32-bit
Processor: Dual Core CPU - 2.6ghz
Memory: 4 GB RAM
Graphics: 1GB of VRAM: Intel HD 3000 GPU / AMD HD 5450 / Nvidia 9400 GT
Storage: 3 GB available space
i noticed the cpu fans volume/speed going up and down, (my gaming pc is currently the p5e-vm hdmi (ddr2) + the zotac card)
It has probably something to do with the bios fan speed being set to automatic because when i don't play games it is the quietest.
But lets take a game like Metal Gear V, Batman Arkham Knight, Star Wars Battlefront, Fallout 4, they ask for around 3.3 ghz or a gtX card and such, is there a way around that? like putting the resolution lower, also is there a big difference between ddr2 and ddr3? should i make my HP pavilion (ddr3) my gaming comp due to that?