Which one is better for OC the CPU / Sabertooth vs V Formula-Z

Pipson

Honorable
Jun 14, 2013
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Im thinking of upgrade my motherboard from Asus m5A99x to either Asus Crosshair V Formula-Z or Asus Sabertooth AMD 990FX Chipset can anyone tell me the difference in them especially in overclocking? Ill be using an fx 8350, if i wish to overclock this CPU with watercooling or Corsair H100 with each of those motherboard what is likely to be the difference? also there is about £50 difference is it worth the difference in price to get the V Formula-Z ?
 
On my ASROCK 990FX Extreme 9 I'm at 5.1 ghz.Here's my setup:

FX8350 \ 5.1GHZ. \ 1.384 VOLTS

2013-04-01_18-13-33_963_zps3c011337.jpg


Phanteks PH-TC14PE with Scythe Slipstream 110 CFM fans attached.
 


My target is 4.8, with sabertooth and water cooling which wil be better than H100, 4.8ghz to 5ghz should be easy to reach or will it depend if i got a good fx 8350 chip too?