Last week, we reviewed the Gainward GeForce GTX 570 Golden Sample ‘Goes Like Hell’ graphics card, based on the NVIDIA GeForce GTX 570 GPU. Apart from custom-designed cards like the Gainward, there are many reference GeForce GTX 570 factory-overclocked ones retailing out there in the market today.
In this page, we compare the Radeon HD 6950 and Radeon HD 6970, both overclocked, against a stock GeForce GTX 570 and a pre-overclocked one such as the Gainward GeForce GTX 570 GS-GLH. The Gainward GeForce GTX 570 GS-GLH is clocked at 800MHz core and 2000MHz (4000MHz effective) memory out of the box.
Even though the Radeon HD 6950 has two SIMD engines disabled, it is still able to slip past a stock Radeon HD 6970. The overclocked Radeon HD 6970 has its hands full with the Gainward GTX 570 GS-GLH card.
The overclocked Radeon HD 6970 manages to make it past the stock GeForce GTX 570, but not a factory-overclocked one.
AMD’s Radeon HD 6970 and HD 6950 have a very strong showing in Mafia II. While an overclocked GeForce GTX 570 is faster than the Radeon HD 6970, a Radeon HD 6950 with a hefty overclock can still surpass the former.
The Radeon HD 6950 is looking like a good buy especially when it is overclocked, as it is able to match the speed of a stock Radeon HD 6970.
Just a short note about power draw; as mentioned previously that despite having +20% PowerTune power control adjustment, the maximum TDP could be more than just 250W for the Radeon HD 6970.
When our Radeon HD 6970 was overclocked to 950MHz core and 1450MHz memory, we threw Furmark at it again. Interestingly enough, our power meter recorded an increase of just 2W. That’s not quite possible, isn’t it? Your thoughts?