AMD Radeon HD 4770 CrossFire Review

August 18th 2009 | 12,855 Views | Posted by admin |

Power Testing

One more area we wanted to compare was power draw and temperatures. These factors can be a major determining factor as to whether you get Radeon HD 4770 CrossFire or a single Radeon HD 4890.

We tested the power utilization at the wall of the entire system without a video card, and with each video card at idle and full load. For full load power and temperature testing we used FurMark version 1.7.0 to stress each video card at the highest load. We found 2560×1600 to be the sweet spot for stressing the GPUs without bottlenecking them. The power supply used in testing is a PC Power & Cooling Turbo-Cool 1200W. Our system is very lean with only one optical drive and one hard drive being powered. Total system wattage at idle without video card is 161W.

1250508663KlSmxvsmy6 9 1 AMD Radeon HD 4770 CrossFire Review

With a single Radeon HD 4770 installed the system pulls 205w at idle and 284w at full load. By doubling up to Radeon HD 4770 CrossFire the idle power usage jumps to 241w and the full load power draw of the system pulls in at 379w. So adding another HD 4770 will indeed add to your idle wattage too, which is something to think about. The single Radeon HD 4890 had lower power utilization than the HD 4770 CrossFire configuration, but not by much. The idle wattage was 234w and at full load it pulled right near 4770 CrossFire’s power utilization.

Temperature Testing

For our temperature testing we simply used Overdrive to watch the temperature of the GPUs at idle and full load. A single Radeon HD 4770 had an idle GPU temp of 56c. At full load it rose to 79c.

When we added in another HD 4770 and enabled CrossFire we found that idle temps went up on both GPUs compared to the single card. At idle one GPU (the inner most card, crammed up next to the other card) idled at 65.5c. The other card’s GPU idled at 65c. That means just adding in another card raised our idle temps from 56c to 65c, which is a significant idle temperature increase just for adding in another video card. The full load temperature was at 89c for both GPUs, a full 10c hotter than with just one video card.

By comparison the Radeon HD 4890 had an idle GPU temp of 61c and a full load temp of 80c.

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This entry was posted on Tuesday, August 18th, 2009 at 11:47 pm and is filed under Display Card. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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3 Responses to “AMD Radeon HD 4770 CrossFire Review”

speedrider | August 19th, 2009 at 12:11 pm

niceeeeeeeeeeeeeeeeeeee!!!

Can slot in into my Abit Fatal1ty old version ka?

admin | August 19th, 2009 at 1:52 pm

by theory, can. but not recommended to apply it on your motherboard, because Abit Fatal1ty Bios already discontinue support. It will not surprise if you get any error message.

speedrider | August 19th, 2009 at 11:20 pm

Hahaha, still not upgraded since my last visit to your shop.

Even my father’s pc advance than mine. So sad.

For your record, if not mistaken. 3 LCD monitor (1 19″ Ws, 2 HD 22″ WS) have been bought from your shop to use at my dad’s pc. Haiya… I don’t know what he do with his PC. LOL.