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HD4670 Crossfire-X up to 63% performance efficiency
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HD4670 Crossfire-X up to 63% performance efficiency
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14th November 2008, 11:21
| #1 |
| [M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,465
 |  HD4670 Crossfire-X up to 63% performance efficiency Zolkorn, a famous overclocker, has been testing the HD4670 in dual and triple CF configuration. Using three 3D benchmarks, we see a very decent performance scaling of the 4670 when adding a third card to your CF platform, having a performance efficiency of 63%. http://www.xtremesystems.org/forums/...25#post3428325
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14th November 2008, 11:23
| #2 |
| [M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,465
|  A 50% increase in videocards gives us, in average, 31% extra performance, which is a 63% performance efficiency.
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14th November 2008, 11:46
| #3 |
| Madshrimp  Join Date: May 2002 Location: 7090/Belgium
Posts: 78,419
 | I don't play 3DMark a lot, how does it do in games 
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14th November 2008, 11:53
| #4 |
| [M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,465
| No idea, but this kind of increase in performance is very rare, even in 3Dmark applications :-)
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14th November 2008, 12:25
| #5 |
| Madshrimp Join Date: May 2002 Location: 7090/Belgium
Posts: 78,419
| game benchies: http://www.pro-clockers.com/reviews/?id=102&page=5
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14th November 2008, 12:47
| #6 |
| [M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,465
| Wow, the same impressive scaling 
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15th November 2008, 17:06
| #7 |
| [M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,465
| That Vantage scaling is simply unbelievable  Performance scaling over single card:  Crossfire link-up efficiency:  Understand this graph as follows: if a single card performs at 100%, how does two cards each perform in comparison to a single card. 100% means that the two cards each perform as good as one card, resulting in a score that is twice as high. If a dual card solution has a rating of 50%; it means that Single or CF has no effect on the score; in tri-cf config 33% means no effect.
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16th November 2008, 20:00
| #9 |
| [M] Reviewer Join Date: Nov 2004 Location: Waregem
Posts: 6,465
| 3DMark Vantage is the latest 3D benchmark of Futuremark, which gives you a good indication of how videocards perform in the latest 3D games, because these are fully GPU limited. Looking at the 183/304% increase over single card, I'd say both dual and triple CF are worth it :-)
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. But do two HD4670's bring more bang for the bucks ?
