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Written by Olin Coles   
Thursday, 18 December 2008
Table of Contents: Page Index
Sapphire Radeon HD 4870 X2 Atomic ST-6026
Radeon HD 4870 X2 Features
Atomic ST-6026 Specifications
First Look: Sapphire Atomic
Video Card Testing Methodology
3DMark06 Test Results
COD 4 Fraps Benchmarks
Crysis Benchmark Results
Devil May Cry 4 Benchmark
World in Conflict Benchmarks
VGA Power Consumption
Atomic 4870 X2 Heat Output
Radeon 4800-Series Final Thoughts
Sapphire ST-6026 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, while the video games will use their own proprietary game engine. For lower-end VGA products we test at 1024x768 (15-17" standard LCD), 1280x1024 (17-19" standard LCD), and 1680x1050 (22-24" widescreen LCD). In our higher-end VGA product tests we conduct add the 1920x1200 (24-28" widescreen LCD) resolution. 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 vast majority of 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.Sapphire_Atomic_Symbol.jpg

Test System

Benchmark Applications

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

Video Card Test Products

Product Series AMD/ATI Radeon HD 4870 Reference Design NVIDIA GeForce 9800 GX2 Reference Design Sapphire Radeon HD 4850 X2 11139-00-40R ZOTAC GeForce GTX 280 AMP! Edition ZT-X28E3LA-FCP Sapphire Radeon HD 4870 X2 Atomic ST-6026
Stream Processors 800 128 (x2) 800 (x2) 240 1600
Core Clock (MHz) 750 600 625 700 800
Shader Clock (MHz) N/A 1500 N/A 1400 N/A
Memory Clock (MHz) 900 1000 993 1150 1000
Memory Amount

512 MB GDDR5

512MB (x2) GDDR3 512MB (x2) GDDR3 1024 MB GDDR3 1024MB (x2) GDDR5
Memory Interface 256-bit 256-bit 256-bit 512-bit 256-bit
  • AMD/ATI Radeon HD 4870 Reference Design (750 MHz GPU/900 MHz RAM - Catalyst 8.12)
  • NVIDIA GeForce 9800 GX2 Reference Design (600 MHz GPU x2/1500 Shader/1000 RAM - Forceware 180.48)
  • Sapphire Radeon HD 4850 X2 11139-00-40R (625 MHz GPU x2/993 MHz RAM - Sapphire Catalyst 8.12)
  • ZOTAC GeForce GTX 280 AMP! Edition ZT-X28E3LA-FCP (700 MHz GPU/1400 MHz Shader/1150 MHz RAM - Forceware 180.48)
  • Sapphire Radeon HD 4870 X2 Atomic ST-6026 (800 MHz GPU x2/100 MHz RAM - Catalyst 8.12)

Now we're ready to begin testing video game performance these video cards, so please continue to the next page as we start with the 3DMark06 results.



 

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