This HIS Radeon X1800XT OC Edition has some really appealing overclocking capabilities, which would be a big attraction to overclockers. Although HIS did not include their usual Arctic Cooling cooling solutions, the X1800XT OC Ed. did not show any form of instalility due to thermal issues. As such, we can conclude that the HIS X1800XT OC Ed. is simply one of the fastest ATI card right now

[Silver Award]

[Seal of Approval] It is always a pleasure reviewing an IceQ-based card from HIS. Their cards are always of good quality and I love the cooling solution, which means I don't have to worry about the noise-level. As for the GPU they are using, the X1600XT is a competent GPU which gives lots of performance for the money. It should provide enough power for most new games as long as you are prepared to lower the settings a bit. The video-features makes it very interesting for HTPC-builders, at least if you got the space for a dual-slot solution. Pros - Solid performance - Silent - Avivo with hardware h.264 decoding support - Dual DVI

As you can see, despite the same GPU and RAM clocks, and identical graphics card board design by the way, the benchmark performance differences are obvious across the board : thouse 48 pixel shaders do help in both 3DMark05 and 06, across all resolutions and settings I used. So, the R580 is noticeably better in 3DMarks across the board, with performance delta varying between 12% and 20% in this early round - those tripled pixel shaders help the.