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Written by Olin Coles   
Sunday, 17 August 2008
Table of Contents: Page Index
Sapphire Radeon HD 4870 X2 Video Card 100251SR
Radeon HD 4870 X2 Features
Sapphire 100251SR Specifications
Closer Look: Sapphire 4870
Video Card Testing Methodology
3DMark06 Test Results
COD 4 Fraps Benchmarks
Crysis Benchmark Results
Unreal Tournament 3
World in Conflict Benchmarks
Power Consumption and Heat Output
Radeon 4800-Series Final Thoughts
Radeon 4870 X2 Conclusion

Video Card Testing Methodology

At the start of all tests, the previous display adapter driver is uninstalled and trace components are removed using Driver Cleaner Pro. We then restart the computer system to establish our display settings and define the monitor. Once the hardware is prepared, we begin our testing. The synthetic benchmark tests in 3DMark06 will utilize shader models 2.0 and 3.0. In our higher-end VGA products we conduct tests at the following resolutions: 1280x1024 (Standard 17-19" LCD), 1680x1050 (22-24" Widescreen LCD), and 1920x1200 (24-28" Widescreen LCD). In some tests we utilized widescreen monitor resolutions, since more users are beginning to feature these products for their own computing.

Each benchmark test program begins after a system restart, and the very first result for every test will be ignored since it often only caches the test. This process proved extremely important in the World in Conflict and Supreme Commander benchmarks, as the first run served to cache maps allowing subsequent tests to perform much better than the first. Each test is completed five times, with the average results displayed in our article.

Our site polls and statistics indicate that the over 90% of our visitors use their PC for playing video games, and practically every one of you are using a screen resolutions mentioned above. Since all of the benchmarks we use for testing represent different game engine technology and graphic rendering processes, I feel that this battery of tests will provide a diverse range of results for you to gauge performance on your own computer system. Since most gamers and enthusiasts are still using Windows XP, it was decided that DirectX 9 would be used for all tests until demand and software support improve for Windows Vista.

Test System

Benchmark Applications

  • 3DMark06 v1.1.0 (8x Anti Aliasing & 16x Anisotropic Filtering)
  • Call of Duty 4: Modern Warefare v1.7.568 (4x AA/16x Trilinear AF using FRAPS)
  • Crysis v1.21 Benchmark (High Settings, 0x and 4x Anti-Aliasing)
  • Unreal Tournament 3 v1.3 (High Quality, 16x Anisotropic Filtering using HOC Benchmark Tool v1.3)
  • World in Conflict v1.0.0.9 Performance Test (Very High Setting: 4x AA/4x AF)

Video Card Test Products

Product Series Sapphire Radeon HD 4870 102-B50701-10-AT XFX GeForce GeForce GTX 260 GX-260N-ADDU

Gigabyte GeForce 9800 GX2 GV-NX98X1GHI-B

Sapphire Radeon HD 4850 102-B50102-00-AT x2 (CrossFireX) ZOTAC GeForce GTX 280 AMP! Edition ZT-X28E3LA-FCP Sapphire Radeon HD 4870 X2 100251SR
Stream Processors 800 192 128 (x2) 800 240 1600
Core Clock (MHz) 750 640 600 625 700 750
Shader Clock (MHz) N/A 1242 1500 N/A 1400 N/A
Memory Clock (MHz) 900 1150 1000 900 1150 900
Memory Amount

512 MB GDDR5

896 MB GDDR3 512MB (x2) GDDR3 512 MB GDDR3 1024 MB GDDR3 1024MB (x2) GDDR5
Memory Interface 256-bit 448-bit 256-bit 256-bit 512-bit 256-bit

Now we're ready to begin testing video game performance on the Sapphire Radeon HD 4870 X2, so please continue to the next page as we start with the 3DMark06 results.



 

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