PC configuration:
Mainboard: Asus P5KPL-CM Socket 775
CPU: Xeon L5420 2.50Ghz (3.01Ghz overclocked)
RAM: 4gb DDR2 800mhz
GPU: Gigabyte RX 560 2GB OC
HDD: 1TB WD RED 7200
PSU: RM650x — 650 Watt 80 PLUS Gold Certified modular

Difference between performance clock speed

Xeon L5420 2.50Ghz
http://www.userbenchmark.com/UserRun/4560971

Xeon L5420 3.01Ghz
http://www.userbenchmark.com/UserRun/4561037

Overwatch
There is a problem with the game on Ultra and Epic settings. The game runs slow and randomly crashes. On high settings is more stable specially when I don’t record a video.

GTA 5
Most of the time is stable specially without recording. Sometimes appears some game artefacts

The Witcher 3 Wild Hunt
Stable the all time. It doesn’t have any problems