At 1280x1024 pixels without AA, CrossFire and SLI are slower than the individual cards, as the CPU affects this resolution more. Only when anti-aliasing is activated are the two-card solutions able to pass the AMD boards. The difference between the GeForce GTX 260 and GTX 280 is 6%, while from the Radeon HD 4850 to the HD 4870 it is almost 11%.
Swipe to scroll horizontally
1280x1024 0AA
fps
Percent
GeForce GTX 280 (1024 MB)
662.3
117.4
Radeon HD 4870 (512 MB)
633.9
112.4
GeForce GTX 260 (896 MB)
625.8
110.9
Radeon HD 4850 (512 MB)
595.1
105.5
Radeon HD 4870 CF (512 MB)
584.4
103.6
GeForce GTX 280 SLI (1024 MB)
570.9
101.2
GeForce GTX 260 SLI (896 MB)
570.7
101.2
Radeon HD 4850 CF (512 MB)
564.2
100.0
Swipe to scroll horizontally
1280x1024 AA
fps
Percent
GeForce GTX 280 (1024 MB)
687.2
133.9
GeForce GTX 260 (896 MB)
645.1
125.7
Radeon HD 4870 CF (512 MB)
632.5
123.2
GeForce GTX 260 SLI (896 MB)
622.4
121.3
GeForce GTX 280 SLI (1024 MB)
622.3
121.3
Radeon HD 4850 CF (512 MB)
596.5
116.2
Radeon HD 4870 (512 MB)
595.1
116.0
Radeon HD 4850 (512 MB)
513.2
100.0
Swipe to scroll horizontally
1280x1024 total
fps
Percent
GeForce GTX 280 (1024 MB)
1349.5
121.8
GeForce GTX 260 (896 MB)
1270.9
114.7
Radeon HD 4870 (512 MB)
1229.0
110.9
Radeon HD 4870 CF (512 MB)
1216.9
109.8
GeForce GTX 280 SLI (1024 MB)
1193.2
107.7
GeForce GTX 260 SLI (896 MB)
1193.1
107.7
Radeon HD 4850 CF (512 MB)
1160.7
104.7
Radeon HD 4850 (512 MB)
1108.3
100.0
Stay On the Cutting Edge: Get the Tom's Hardware Newsletter
Get Tom's Hardware's best news and in-depth reviews, straight to your inbox.
Not a bad article, really comprehensive.
My one complaint? Why use that CPU when you know that the test cards are going to max it out? Why not a quad core OC'ed to 4GHz? It'd give far more meaning to the SLI results. We don't want results that we can duplicate at home, we want results that show what these cards can do. Its a GPU card comparason, not a complain about not having a powerful enough CPU story.
Oh? And please get a native english speaker to give it the once over for spelling and grammar errors, although this one had far less then many articles posted lately.
It'd be a good article if you'd used a powerful enough CPU and up to date Radeon drivers (considering we're now up to 8.8 now), I mean are those even the 'hotfix' 8.6's or just the vanilla drivers?
at 1280, all of the highend cards were CPU limited. at that resolution, you need a 3.2-3.4 c2d to feed a 3870... this article had so much potential, and yet... so much work, so much testing, fast for nothing, because most of the results are very cpu limited (except 1920@AA).
@pulasky - Rage much? It's called driver issues you dumbass. Some games are more optimised for multicard setups than others, and even then some favour SLi to Crossfire. And if you actually READ the article rather than let your shrinken libido get the better of you, you'll find that Crossfire does indeed work in CoD4.