MSI Afterburner vs. AMD GPU Clock Tool
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January 5, 2012, 02:00 PM
Join Date: Sep 2011
Location: Brockville, ON
My System Specs
Also from my understanding gpu clock tool disables fan speed changes and such, AB or Sapphire TRIX would be your best bets, at least they allow overvoltage(if your card supports it) and higher clock headroom then CCC allows, you could also change the bios on the card(but this takes some balls sorta speak)
Either its the voltage is not enough, or the Vregs are getting to warm trying to pump those clocks, you could also tell AB to enable unoffical overclocking which sometimes helps, or even BIOS edit your card with Radeon bios editor, but you better pay attention to what you are doing.
Dont forget, Radeon x950 vs thier x970 "usually" have a limit imposed on them, and more often then not, do not typically have as much headroom, some are the exception, but most of these exceptions were choosen by the manufacturer for this specific reason.
GPU review will show you what alot of 5850 are sold at for speeds in memory and such, this may help, but also keep in mind, Vregs control the power to core/memory, and by overclocking both you more then likely are limiting the clocks either can achieve, "most" games the Radeons gain alot more performance from a higher core speed, then higher memory, I say put both at stock, and find the highest you can get both individually, then put both together, and do make sure the temps are in check, 65-78c or so is resonable with 35-62% fan speed, any higher then that you are pusing it to much and this will most certainluy effect the speeds/stability.
My System Specs
ASUS M5A99X EVO
PII 955BE C3 max 4.34 Ghz 1.435v HT 2.182 CPU-NB 2867 MX4 CM Hyper 212+ push/pull stock fan
G Skill 2x4 8gb RipjawX 1866 9,10,9,27,42 1.5v at 1787 9,9,9,25,34 1.51v
MSI TFIII 7870 OC running 825/1005 .881V 58% fan 56c, 983/1375 core/mem 1.150V 74% fan 64c, 1267/1535 1.232V 87% fan 74c gaming stable one of lowest volt/high clock 7870 I have seen.
Crucial MX100 256gb Caviar black 640(game) Caviar blue 1tb(junk/storage external)
Antec GX700 yuck :(
ASUS Xonar DX
Samsung 2570HD(typical responce time 7+ms :( and Acer P223W(<1ms typical)
Windows 7 64 home premium
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