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[Official] The AMD Radeon 7800 Owners Club - Page 109

post #1081 of 4099
Whats the OC potential for 7870 and the 7850?
post #1082 of 4099
Quote:
Originally Posted by MrSkim View Post

Whats the OC potential for 7870 and the 7850?

7850's can clock 1200+ [not all] and 7870's can clock 1300+ [not all]

The 7850 has a much lower base clock and thus have a higher OC potential... its not faster though.
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post #1083 of 4099
So would 7870 for $300 be a good buy?
Was thinking of buying MSI 7850 PE for $280 or so.
post #1084 of 4099
Quote:
Originally Posted by MrSkim View Post

So would 7870 for $300 be a good buy?
Was thinking of buying MSI 7850 PE for $280 or so.

For ~$20 more its worth going for the 7870 (Ive seen ref models and a TFIII go for $299.99)
Some of the 7850s out there are way overpriced right now.

Sent from Stugots Mobile
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post #1085 of 4099
Quote:
Originally Posted by candy_van View Post

For ~$20 more its worth going for the 7870 (Ive seen ref models and a TFIII go for $299.99)
Some of the 7850s out there are way overpriced right now.
Sent from Stugots Mobile

The MSI 7870 Hawk edition is out which outbeats any 7950 oc'd cept for the lighting edition of 7950 of course... Though retail is from around $360 or so... maybe $340 if you have an $20 MSI rebate. Though for $300 for an MSI 7870 TWIN FROZR 3 you can't go wrong.. and you'll most likely have a $20 rebate promotion from MSI so that means you're netting $20 back biggrin.gif for double the performance of a 7850 and pretty much beating a 7950 cost/performance ratio.

Anybody know what the safest max temp is for the MSI 7870 card and the voltage? Both safe so that it would detract from the life of the gpu? I forgot the formula but it was like MAX temp-10%=temp that you would want to be around.. I'm assuming the same as voltage. :|
post #1086 of 4099
XFX told me max "safe" temp is 90; over voltage at 1.3 (however you will see much higher spikes due to the architecture).


Has anyone upgraded to 12.7 yet? Any performance increases?
post #1087 of 4099
12.6 is an official release now and 12.7 is an official beta release. Using new 12.6 now and 3DMark11 crashes as soon as I click on the icon. Not sure what's up with that. Anyone else not able to run 3dmark11 on official 12.6? Tried uninstall and reinstall with no luck. *shrug*
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post #1088 of 4099
Quote:
Originally Posted by Jayjr1105 View Post

Depends on the blue screen you are getting. Did you happen to remember what code the blue screens were? If not you can use Bluescreenview and see what the bug check codes were and what driver was causing the issue. Most likely you need to wipe drivers clean with ATIman or driversweeper (in safe mode) and download new ones. You'll have to do some research on what drivers are best for 7xxx series crossfire because I have no idea. Do you have ULPS disabled in the registry? It's recommended for all xfire users...
How to disable Ulps:
[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Cl ass\{4D36E968-E325-11CE-BFC1-08002BE10318}]
and change "EnableUlps" to 0 under the 0000 and 0001 or 0003 keys.
Quote from another poster on Tom's...
"ULPS, which is a crossfire power saving function. It basically makes one of your cards go completely idle and not draw power if not in use (i.e. desktop, etc). however there are issues where it tries to drop into idle mode while its being used."

Seems to be working smile.gif

Thanks

I installed the official 12.6 drivers. I'll try running 3dmark11
post #1089 of 4099
I downloaded 3dMark11 (free version)

Running HD7870 (sapphire, standard edition not overclocked) in CrossfireX:

http://3dmark.com/3dm11/3778210

Crossfire disabled:

http://3dmark.com/3dm11/3778340
post #1090 of 4099
Quote:
Originally Posted by -SpArkLeS- View Post

I downloaded 3dMark11 (free version)
Running HD7870 (sapphire, standard edition not overclocked) in CrossfireX:
http://3dmark.com/3dm11/3778210
Crossfire disabled:
http://3dmark.com/3dm11/3778340

The crossfire disabled score seems low. A 7870 should get close to 6900-7000 by itself. I think I got 7400 with a 1200/1300 OC
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I have Ryzen!
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