AMD has done a great job with these cards and they were able to take back the performance crown with the release of these cards. They are super fast graphics cards and at $549 each they aren’t priced too high compared to where other cards have launched in the past few years. If you want the absolute best when it comes to gaming graphics performance a pair of Radeon HD 4870 X2 cards are what you need. The CrossFireX platform didn’t scale in Crysis, but did in Call of Duty 4 as you can see from both the benchmarks and the chart above.
Also it was interesting to see how different games draw different amounts of power. This is nearly 7 Amps of power draw, so if you have an older house with a number of electronics on a 15 Amp service you might be in trouble. With the new power supply running more efficiently the peak power consumption on the Radeon HD 4870 X2 in CrossFireX was 755W. A quick switch over to a Cooler Master 1000W ESA power supply and the benchmarking went on without a problem. Certain benchmarks like 3DMark Vantage were corrupted as the power supply just couldn’t handle the load. Our Corsair HX620W power supply is rated for operation at 620W, but was pulling 791W when trying to run CrossFireX with the Radeon HD 4870 X2’s.
Power Consumption Results: The ATI Radeon HD 4870 X2 by itself isn’t that bad, but when run in CrossFireX you better keep an eye on things. For load numbers, we measured the peak wattage used by the system while running the game Call of Duty 4 at 1280×1024 with high graphics quality. For idle numbers, we allowed the system to idle on the desktop for 15 minutes and took the reading. Power Consumption and Final Thoughts Power Consumptionįor testing power consumption, we took our test system and plugged it into a Seasonic Power Angel.
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