Size, Noise and Heat
What a piece of kit! This is no doubt what a lot of gamers are saying when they first get their hands on this model. At 31 cm and weighing 1.2 Kg, AMD really has gone to town with the HD 5970. The cooling system is of course a double-decker heatsink.
The fan is already quite loud when the card is idle. It's not too annoying at 40.6 dB(A), but it's not exactly quiet either. In 3D mode, it quickly gets out of hand, rising to an intolerable 60.1 dB(A). If you're gaming around others, they'll soon get sick of you.
As far as temperature goes, we didn't note a significant rise in heat output compared with the previous generation. We're talking 47°C in idle (surfing the web, for example) and 107°C when gaming.
AMD claims that power consumption of its Radeon HD 5000s is well contained when the card is idle. We got readings of 122 watts in 2D, which is a lot better than the Radeon HD 4870 X2 (146 watts). In intense 3D gaming this shoots up to 497 W! That's a 50 watt improvement on the old model. Power is supplied by one 8-pin and one 6-pin PCI-E connector.
One of the advantages of twin-GPU processors is high performances that can be sustained over long periods of time. Even the recent GeForce GTX 580 can't match this Radeon HD 5970, which is only out-done by the very latest twin-GPU cards like the GeForce GTX 590 and Radeon HD 6990.
Click on the image to see all our readings
and compare this model with other graphics cards.
With performances like this, you can play all the latest games without having to worry about turning down the resolution, graphics detail or switching to 2D!
|Graphics Cards: Performance Index Tables