For this test we used a similar method to our power supply testing and then measured the consumption of the whole system every second. Maximum consumption placed strenuous strain on the PCI-E slots only thanks to a custom script, and allowed us to measure the differentials.
Power consumption on maximum reaches not above that stated on the box. What was most impressive with the HD 4870 X2 was the load consumption. Skillfully much less in comparison to SLI power consumptions and managing to be even more less than the HD 4870 card, the HD 4870 X2 is magnanimously relentless. Given the higher clock and more utilization of stream processors, the ATI Radeon HD 4870 X2 is athirst for using all the power per watt.
Heat was controlled throughout testing and even through the most strenuous test we could put it through the temperatures never rose above 75°C. In comparison to the HD 4870, this is 5°C less on average.