Ati Radeon HD 5850/5870 Crossfire vs. Nvidia Geforce GTX 285 SLI: Multi GPU Shootout
AMD's Radeon HD 5870 and HD 5850 were doing extremely well in our reviews. Now PC Games Hardware doubles the equipment: What are two Radeon HD 5870s or HD 5850s in a Crossfire setup capable of?
Both of Ati's new graphics cards, the Radeon HD 5870 and the Radeon HD 5850, delivered convincing results in their individual reviews. Now PC Games Hardware takes a look at the Multi GPU scaling: We test Crossfire setups of two HD 5850s respectively two HD 5870s. The opponent in this shootout is a SLI setup with two Geforce GTX 285s.
According to our Performance Index the Radeon HD 5870 is about 15 percent faster than Nvidia's Geforce GTX 285. The Radeon HD 5850 is slightly faster than the GTX 285. If the benefit from the dual GPU setups doesn't vary too much this order shouldn't change.
Radeon HD 5800 Crossfire reviewed: Micro Stuttering
In the run up to the release of the Radeon HD 5800 many gamers hoped for a hardware solution to the micro stuttering problem. Unfortunately they have been disappointed since the HD 5800 Crossfire setups are still affected. We take a look at the slightly different explanation of the Micro Stuttering phenomenon.
The picture is taken from one of our German print articles that deal with the AFR problem. The basic trouble caused by the irregular frame distribution is still there on setups of two, three or four cards of the HD 5800 series. As soon as the amount of frames per second drops, it gets noticeable in many games that the frames are not delivered in a regular interval. This causes a jerky picture flow although the framerate should be smooth. On a single GPU card this does not happen.
Like the Radeon HD 4870 X2 a setup with two HD 5870s or HD 5850s benefits from the huge calculation power: With "conventional” settings (MSAA) it is not possible to get such a duo down to 30 - 40 fps. With high quality AA modes like 24x Edge Detect CFAA or 4x/8x Sparse Grid SSAA this level is easily reached and one notices the multi GPU problems like Micro Stuttering and Input Lag. But time is working against the graphics cards, since future games will lower the limits and games will start to lag even in less decadent settings. Thus PC Games Hardware does not recommend using two Radeons in a Crossfire setup. Nvidia's SLI technology is affected by Micro Stuttering, too, but the Geforce makers have softened the symptoms by tuning the drivers. Nevertheless we can't give a recommendation for SLI either - single GPU graphics cards are still the best solution.
- 1Radeon HD 5800 Crossfire reviewed: Introduction - Micro Stuttering
- 2Radeon HD 5800 Crossfire reviewed: Test system and Benchmark selection
- 3Radeon HD 5800 Crossfire reviewed: Benchmark Call of Duty: World at War (dt., DX9)
- 4Radeon HD 5800 Crossfire reviewed: Benchmark Crysis Warhead (DX10/64 Bit)
- 5Radeon HD 5800 Crossfire reviewed: Benchmark Fallout 3 + HD-Pack (DX9)
- 6Radeon HD 5800 Crossfire reviewed: Benchmark Far Cry 2 (DX10)
- 7Radeon HD 5800 Crossfire reviewed: Benchmark Grand Theft Auto 4
- 8Radeon HD 5800 Crossfire reviewed: Benchmark Half Life 2 Episode 2 + CM 9.51 (DX9)
- 9Radeon HD 5800 Crossfire reviewed: Benchmark Race Driver GRID (DX9)
- 10Radeon HD 5800 Crossfire reviewed: Benchmark Stalker: Clear Sky (DX10/DX10.1)
- 11Radeon HD 5800 Crossfire reviewed: Benchmark World of Warcraft: WotLK (DX9)
- 12Radeon HD 5800 Crossfire reviewed: Benchmarks with Sparse Grid Supersampling Anti Aliasing (SGSSAA)
- 13Radeon HD 5800 Crossfire reviewed: Conclusion
- 14Bildergalerie zu "Ati Radeon HD 5850/5870 Crossfire vs. Nvidia Geforce GTX 285…
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