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Written by Olin Coles   
Monday, 18 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

World in Conflict Results

The latest version of Massive's proprietary Masstech engine utilizes DX10 technology and features advanced lighting and physics effects, and allows for a full 360 degree range of camera control. Massive's MassTech engine scales down to accommodate a wide range of PC specifications, if you've played a modern PC game within the last two years, you'll be able to play World in Conflict.

World in Conflict's FPS-like control scheme and 360-degree camera make its action-strategy game play accessible to strategy fans and fans of other genres... if you love strategy, you'll love World in Conflict. If you've never played strategy, World in Conflict is the strategy game to try.

World in Conflict offers an in-game benchmark; which records the minimum, average, and maximum frame rates during the test. Very recently another hardware review website made the assertion that these tests are worthless, but we couldn't disagree more. When used to compare video cards which are dependant on the same driver and use the same GPU architecture, the in-game benchmark works very well and comparisons are apples-to-apples.

Based on the test results charted below it's clear that WiC doesn't place a limit on the maximum frame rate (to conserve wasted power) which is good for full-spectrum benchmarks like ours, but bad for electricity bills. The average frame rate is shown for each resolution in the chart below. At the lower 1280x1024 resolution the playing field all keeps around 60 FPS, with exception to the GeForce GTX 280 with top performance frame rates of 67. The Radeon 4850 CrossFireX pair and Sapphire 4870 X2 both suffer from overhead bottlenecks, and perform the worst of the bunch at this resolution.


At 1680x1050 the Sapphire Radeon HD 4870 X2 sustains the same frame rate of 59 FPS, but all other products degrade if only slightly. The GeForce 9800 GTX surges ahead to within range of the ZOTAC GeForce GTX 280 AMP! Edition, but it's going to take a much higher resolution to pull these products away from a common position on the charts.

With a balanced demand for CPU and GPU power, World in Conflict just begins to place demands on the graphics processor at the 1920x1280 resolution. I was expecting more results along the same line I've seen so far, and that is pretty much exactly what I got. The performance decay had its hardest impact on the lower high-level video cards: Radeon HD 4870 and GeForce GTX 260, which for all intents an purposes performed extremely well up to this point in our WiC testing. Two HD 4850's in CrossFireX configuration will yield a 46% improvement over using only one and exceed performance of a single Sapphire Radeon HD 4870 by 19%, but still falls just 2 FPS short of matching the WiC-shy 59 FPS of the 4870 X2. The GeForce 9800 GX2 didn't budge one single frame as it scaled from 1.31 MP up to 2.3 MP, showing how much raw power this product delivers in the right application and finally pushes past the overclocked GeForce GTX 280.

Product Series Sapphire Radeon HD 4870 102-B50701-10-AT XFX 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

In our next section, we discuss electrical power consumption and learn how well (or poorly) each video card will impact your utility bill...


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