Crossfire XFX HD 7850's

Cliq6789 · Oct 3, 2013

I have just received my 2nd XFX HD 7850 from newegg
& before installing it I forgot to uninstall all of my current drivers.
Anyways, after uninstalling & reinstalling drivers I have Enabled
Crossfire in CCC, & i'm pretty sure its normal to only show activity
with the 2nd Graphic Card in CCC if you're playing a game.
But when it's enabled i'm not receiving much increase of Gameplay
is there something else I need to do? Install separate drivers or anything?

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cuecuemore · Oct 3, 2013

What CPU do you have? What games are you playing? What does the utilization on each card look like during gaming? How about framerates?

clutchc · Oct 3, 2013

1) Are you using the new 13.10 beta driver?
2) do you have the Game profiles installed?

Btw, nice rig. But you should try to tuck some of those cables behind the MB tray so you don't block off air flow.

iam2thecrowe · Oct 3, 2013

what cpu do you have? maybe cpu bottleneck.

Cliq6789 · Oct 4, 2013

I have a i5 2320 Overclocked 3.3ghz processor.
in Metro:Last Light Ultra AAx8 I get about 22 fps
with Crossfire disabled. Enabled I still average 22 fps.
Hmm, maybe it might be bottlenecking because of cpu.

clutchc, I didn't have the 13.10 beta driver installed but I am doing that now to see
if I notice a difference in gameplay. & Yes I've situated the wires that was a pic when
I just installed the 2nd graphic card.

Cliq6789 · Oct 4, 2013

Well, idk if the Driver was the Problem. But while I was in Far Cry 3
I had aax8 on & it was lagging pretty bad. Minimized Opened up CCC,
overclocked both graphic cards about 150 each & it was playing WAY
smoother but still noticed a bit of screen tear. But I did notice a difference.

iam2thecrowe · Oct 4, 2013

as far as i know crossfire and metro last light doesnt work. not a cpu bottleneck. and yea, definitely get the new beta drivers. Use Driversweeper in safe mode to remove all AMD drivers, this will remove all reg entries and system files that dont get removed with a standard uninstall. then load the latest beta drivers.

clutchc · Oct 4, 2013

Cliq6789 :

And did you install the "AMD Catalyst Application Profiles"? Those are needed.
http://sites.amd.com/US/GAME/DOWNLOADS/Pages/radeon_win8-64.aspx

Question: Don't those cards take 2 x 6 pin connectors each? I thought the TX 650 only had 2.

Cliq6789 · Oct 5, 2013

I haven't installed Driversweeper yet but i'm going to do that also.
& Na clutch, these two only take 1 x 6pin connector each. Oh yeah, I forgot all
about the Profiles. I was def do that Now & i'll post updates on the Performance.
Thank everyone for the help & replies couldn't really find that on any other forums.

clutchc · Oct 5, 2013

If you have Anti-Aliasing set at X8 in FC3, that may explain the stutter. AA is the most frame rate devouring of all the settings. Back off to about half that and see if the stutter reduces. Here is something you may want to read:
http://forums.steampowered.com/forums/showthread.php?t=3053013

And can you link me to those cards you have? I had a pair of Sapphire HD 7870s in my rig for awhile ( http://www.newegg.com/Product/Product.aspx?Item=N82E16814202025 ), and they were 2 x 6 pin cards.

Cliq6789 · Oct 5, 2013

These are the two Cards I have ( http://www.newegg.com/Product/Product.aspx?Item=N82E16814150641 )
I had picked them up while they were on sale though for $149

Yeah, when I play Far Cry 3 on AA x4 It will play perfectly,
but like you said on AA x8 it stuttered a bit. Playable but just
not something you would want to play on. x4 will be just fine,
I can't complain I don't have the best cards in the world.

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