I suggest you read this before going with Crossfire

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SickBeast

Lifer
Jul 21, 2000
14,377
19
81
http://www.xbitlabs.com/articles/graphics/display/radeon-hd-7970-crossfirex_8.html#sect1

No profile at all for Battlefield 3, even if you try to force it manually.

No crossfire support with AA turned on in Crysis 2, plus *horrible* minimum FPS across the board.

This is completely unacceptable IMO as these are not even new releases.

I know adam the giant was going to get a pair of 7850s. I really hope it works out ok for him. This article has turned me off of ever getting a Crossfire setup.
 
Jaydip

Jaydip

Diamond Member
Mar 29, 2010
3,691
21
81
AMD's driver teams need a major uphaul.It seems they recruit the worst ones for their driver team.
 
F

Ferzerp

Diamond Member
Oct 12, 1999
6,438
107
106
With Crossfire, can you use the second card for AA if there is no crossfire support like you can with SLI?
 
jacktesterson

jacktesterson

Diamond Member
Sep 28, 2001
5,493
3
81
2nd Card will arrive tomorrow.

I have a store with a 680 in stock locally. Guy says nobody has even looked at it.

I honestly thought about it, but decided will still give CF a try.

I crossfired a 5970 and 5870 in the past and was happy. I'll put my faith in driver updates from AMD.
 
9

96Firebird

Diamond Member
Nov 8, 2010
5,738
334
126
aaksheytalwar said:
Do they hire or just outsource?
Click to expand...

I can't imagine they would outsource on such a large, core component of their business.

They have, however, been doing what seems to be some "restructuring" lately. Hopefully they can get everything figured out in due time, although they've had plenty of it already...
 
Jaydip

Jaydip

Diamond Member
Mar 29, 2010
3,691
21
81
adam_the_giant said:
2nd Card will arrive tomorrow.

I have a store with a 680 in stock locally. Guy says nobody has even looked at it.

I honestly thought about it, but decided will still give CF a try.

I crossfired a 5970 and 5870 in the past and was happy. I'll put my faith in driver updates from AMD.
Click to expand...
U didn't get the full story,they were too busy looking at 690 :biggrin:
 
G

Genx87

Lifer
Apr 8, 2002
41,091
513
126
I know AMDs support is typically sub par. But come on, BF3 has been out for what, 8 months? And they cant get a profile out for you guys? It was only one of the biggest releases in 2011.
 
jacktesterson

jacktesterson

Diamond Member
Sep 28, 2001
5,493
3
81
Genx87 said:
I know AMDs support is typically sub par. But come on, BF3 has been out for what, 8 months? And they cant get a profile out for you guys? It was only one of the biggest releases in 2011.
Click to expand...

I believe there is an error in this reivew.
 
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blackened23

Diamond Member
Jul 26, 2011
8,548
2
0
Crossfire definitely works in bf3 and crysis 2. Not sure what they're doing wrong, but I get 90-99% gpu usage across both GPU's in both games.

All the crysis games have a profile, as does bf3.

BF3:

http://www.hardwareheaven.com/revie...sfire-graphics-card-review-battlefield-3.html
imageview.php


Crysis 2:

imageview.php


I don't know what they're doing wrong, but i've played both of these games extensively with crossfire working. BF3 had a profile at release as well. So I don't know whats up with their shit, but they screwed something up.
 
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stuup1dmofo

stuup1dmofo

Member
Dec 2, 2011
84
0
0
SickBeast said:
http://www.xbitlabs.com/articles/graphics/display/radeon-hd-7970-crossfirex_8.html#sect1

No profile at all for Battlefield 3, even if you try to force it manually.

No crossfire support with AA turned on in Crysis 2, plus *horrible* minimum FPS across the board.

This is completely unacceptable IMO as these are not even new releases.

I know adam the giant was going to get a pair of 7850s. I really hope it works out ok for him. This article has turned me off of ever getting a Crossfire setup.
Click to expand...

This is only true for the 7000 series of video cards. I'm running a pair of 6950's in crossfire. It definitely works as my fps in BF3 on Ultra 1920x1080 stays at a smooth 60fps with dips into the 50's during intense scenes in Karkand. If CFX was not working properly, no way it would give me such an experience. Plus, Catalyst App Profiles were released for BF3 way back when it came out. Again, this problem is probably only for the 7000 series.
 
exar333

exar333

Diamond Member
Feb 7, 2004
8,518
8
91
SickBeast said:
http://www.xbitlabs.com/articles/graphics/display/radeon-hd-7970-crossfirex_8.html#sect1

No profile at all for Battlefield 3, even if you try to force it manually.

No crossfire support with AA turned on in Crysis 2, plus *horrible* minimum FPS across the board.

This is completely unacceptable IMO as these are not even new releases.

I know adam the giant was going to get a pair of 7850s. I really hope it works out ok for him. This article has turned me off of ever getting a Crossfire setup.
Click to expand...

Great link.

IMHO this definitely pushes some sales to the NV side, if all else is relatively equal with price and performance. It's one thing to have 'not as good' scaling, but quite another to completely lack support for mult-GPUs. NV does a very good job at releasing support for SLI and enhancing SLI performance for AAA titles as time goes on.

Just to be clear; when you are talking about single GPU drivers, I would say NV and AMD are very similar. The above is for multi-GPU setups only.
 
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blackened23

Diamond Member
Jul 26, 2011
8,548
2
0
What a professional review. I have no idea why they would driver force AA in crysis 2, nvidia CP ignores override AA in the game (verify with nvidia inspector) while I presume AMD CCC tries to obey it. Thats pretty confusing because xfire definitely works in those titles.
 
V

VulgarDisplay

Diamond Member
Apr 3, 2009
6,188
2
76
User error somewhere. If there were no profiles and crossfire didn't work for BF3 and Crysis 2 we would have heard about it from 100 different review sites about 2 days after those games launched.

I know they did lag a little bit on getting BF3 crossfire working, but that was back in October 2011.
 
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blackened23

Diamond Member
Jul 26, 2011
8,548
2
0
VulgarDisplay said:
User error somewhere. If there were no profiles and crossfire didn't work for BF3 and Crysis 2 we would have heard about it from 100 different review sites about 2 days after those games launched.

I know they did lag a little bit on getting BF3 crossfire working, but that was back in October 2011.
Click to expand...

There's already 7970cf reviews everywhere with bf3 and its one of the best scaling titles on CF. I don't know if the author at xbit is FOS or doing something wrong, but like I said, its already been tested a billion times by other websites.
 
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boxleitnerb

Platinum Member
Nov 1, 2011
2,605
6
81
Crossfire fails in BF3 only at specific resolutions. 2560x1600 IIRC. And you cannot force AA in Crysis 2 DX11.
 
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blackened23

Diamond Member
Jul 26, 2011
8,548
2
0
boxleitnerb said:
Crossfire fails in Crysis 2 only at specific resolutions. 2560x1600 IIRC. You cannot force AA in Crysis 2 DX11.
Click to expand...

No, forced AA doesn't work on nvidia hardware as it is flagged in nvidia inspector to be ignored, forced AA does work through AMD ccc. (at least, I know i've been able to enable SSAA in crysis games) Further, CF does work at 7970CF at 2560 because I play at that resolution.

imageview.php


Its greatly annoying when a reviewer is clueless, testing override AA in crysis 2 WHEN OVERRIDE AA DOESNT WORK on nvidia hardware? Really? I can't believe this guy is so oblivious to completely ignore that override AA did nothing on the nvidia setup. And then makes that the basis of the test. CF does work in both games, shrug. Does the AMD driver team need to step it up? Sure. But this reviewer is also FOS because 1) CF works in those titles and 2) Completely oblivious to override AA NOT WORKING.
 
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boxleitnerb

Platinum Member
Nov 1, 2011
2,605
6
81
What does that have to do with anything? In DX11 you cannot force anything with any card, EOD. And I've played Crysis 2 in DX9 with SGSSAA, thank you very much.

I edited my post, it was BF3 - I didn't remember correctly. They probably fixed it by now.
 
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blackened23

Diamond Member
Jul 26, 2011
8,548
2
0
boxleitnerb said:
What does that have to do with anything? In DX11 you cannot force anything with any card, EOD. And I've played Crysis 2 in DX9 with SGSSAA, thank you very much.

I edited my post, it was BF3 - I didn't remember correctly.
Click to expand...

My aim wasn't to upset you, my aim was to point out the review is doing something wrong because CF works in those titles. But while on that topic... I'm pretty certain that override does work with CCC in DX11 mode, because i've tried it before and I remember seeing a guru3d thread on that very topic with pictures of users having success. Anyway, i'm not going to get in a pissing match with you over that. Thats not even my main point.
 
K

KompuKare

Golden Member
Jul 28, 2009
1,226
1,584
136
Well I used to think Xbitlabs was ok but lately their reviews have been very poor. Although not that interested in CF, I was sure I had seen BF3 scaling before and sure enough for example the hardware.fr 690 review:

http://www.hardware.fr/articles/864-10/benchmark-battlefield-3.html

And sure enough BF3 actually scales better with CF vs SLI. So the Xbitlabs review was either incompetent or malicious.
 
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