How good is the ASRock 970 EXTREME4 AM3+ compared to the ASUS M5A99X EVO or the GIGABYTE GA-990FXA-UD3?

What do I miss out on if I use it?

well that are 3 boards that are totaly diffrent.

i have a few questions

  1. Which cpu are you planning to use?
  2. Are you tempting to overclock?
  3. Do you stay on a Single Gpu setup, or do you want the  capability´s for CF or Sli?

 

FX 6300. Probably. Single GPU.

if you stay with a single gpu the i would say go for the Asus M5A97 R2.0 4+2 powerphase and digi vrm, with a FX6300 95Wtdp cpu, you will be fine on this board, you will also be able to play with some overclocking.

The Asrock 970 Extreme 3/4  have only 4+1 powerphase they will ofc also work fine with a FX6300 but you wont get manny overclock room, because of the weaker powerphases and they also have weak vrm´s.