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February 26, 2014, 03:24:18 PM Last edit: February 26, 2014, 03:34:49 PM by de_ixie |
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Hi,
I got some experience with different 280x cards. Tried to tweak them as much as possible - still some room I guess, but they are stable....
All on Asrock Extreme 4 (dunno if this is the best, but a lot of ppl use it, its cheap and has an external power switch) - 4x MSI Twin Frzn (they do 750-760 kH @ 0.99v undervolt) - 4x Gigabyte Windforce (they do 750-760 kH @ 1.08v) - 4x Sapphire Vapor (they do 730 kH @0.99v) - 4x Sapphire Dual X OC (they do 730 kH @ between 1.05v - 1.2v)
--- no clue about Asus and Powercolor
Imho best cards from this set are the MSI. I would not recommend the Sapphire (especially not the Dualx X OC), they have problems with heat... some kind of autothrottle in case of higher temps... even with good cooling and tweaked bios I can not squeeze out more than 730/740 kH.
Hope that helps
Cheers
Edit: Another important information. All systems draw around 1100-1200 W @wall with a gold/platin PSU - you need at least 1200W PSU
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