Originally Posted by charlesC8188
Thank you for the fast/intelligent response. They are reference cards. Since I have both XFX cards they come with the life time warranty, will flashing the GPU's bios negate the warranty? I see you have a 5850 as well, did you do the same thing? And if so, how were the performance gains? +1 rep
I'm not sure on XFX's warranty policy but with most manufacturers flashing the BIOS typically does, however even if your card is completely bricked you can flash it back to the stock BIOS with another card.
(plenty of discussion on that in both related threads I linked earlier - basically you just need to establish that you're flashing a differing PCI PEG, eg the bricked card).
Personally yes I flashed my BIOS to an ASUS 5870.
It raised my defualt clocks/volts to 850/1200 and 1.16v (IIRC) instead of the default 725/1000 / 1.08v
Was able to get my current clocks stable with it and I'm happy enough with the end figures - if I really wanted a bit more I'd probably edit the current BIOS in RBE.
Only reason I didn't stick with using MSI is because I don't prefer to be bound to software for my clocks and settings on my hardware.
In fact if you wanted to bypass any kind of software altogether (aside from initial use) you cold use RBE
to edit the BIOS to exactly what settings you want for everything.
Don't get me wrong MSI does work amazingly well and can be VERY useful.
A quick .config edit as mentioned will let you adjust your voltages and be on your way to a big juicy OC in a few minutes (can help to determine figures for RBE if you so choose)
All a matter of preference I suppose
As for performance gains; a 5850 (on it's own) is within 3-8% of a 5870 when compared *clock for clock*
Anything 850+ will be a nice bump in performance over the stock clocks and comparable to it's bigger brother.Edited by candy_van - 12/22/10 at 11:16am