The Radeon HD 7770 Black Super Overclocked Edition Double Dissipation is a video card from XFX featuring the new "Cape Verde" mainstream GPU. The card is cooled by the new dual fan cooling system from the same manufacturer, which is both efficient and silent, the GPU reaching no more than 65 degrees after 15 minutes of stress testing in Furmark. The card comes pre-overclocked and still has some headroom left without the need of raising the stock voltage.
Conclusive Thoughts
The Radeon HD 7770 is meant to be an upgrade for the 5770 (or the rebadged version, 6770), and succeeds to beat it in each and every benchmark; however, there are some offerings on the market the 7770 goes head to head with like the 6850, which is cheaper and offers a little more performance.
While we cannot recommend for now the stock clocked 7770, with the XFX 7770 Black Super Overclocked Edition, we have another story: even if the product is priced higher than the reference model, we have a dual fan cooling system, which is, besides quiet, light thanks to the aluminum build, efficient enough and a high overclock from factory at both GPU and memory.
Thanks to the 28nm architecture, the power consumption is lower compared to the previous generation. The fans are specially designed so the dust accumulation during usage does not damage the bearings and the lifespan is increased by up to 10000 hours.
The ZeroCore Power feature the new GPUs from AMD have is very useful because of two things: first we have power consumption with is almost non-existent when the GPU is in long idle mode. Secondly there is the noise, which also completely disappears during this state, because the fans are turned off:
This feature makes the card ideal to install in systems that we leave overnight for downloading purposes or other activities that do not imply using the GPU.
Considering how good the new Radeon HD series scale in Crossfire, pairing two of these may result in having very good overall performance, even succeeding to defeat the GTX 580, the current high end single GPU card from Nvidia.
The XFX Radeon 7770 SOE sample could be further overclocked to 1160MHz GPU and 1350Mhz Memory, without any extra voltage increase from Catalyst Control Center.Here are the performance gains in 3DMark 11:
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