august 2 2010 review by hexus.net

The SAPPHIRE HD 5670 ULTIMATE has 400 Stream Processors and 1GB of the latest GDDR5 RAM. With clock speeds of 775MHz core and 1000MHz (4GHz effective) for the memory, it has a silent heatpipe cooler, but performance is the same as models with air cooling. It's the fastest silent cooled graphics card up till now. Sapphire increases display flexibility by including a DVI-to-VGA and HDMI-to-DVI adapters.

Conclusion:

The HD 5670's thermal envelope is such that it can be passively cooled by a well-implemented zero-fan heatsink', Offering reasonable performance in the latest games at full HD setting and outfitted with an Eyefinity-forming selection of ports on the back. With no fans, reasonable low temperatures and decent outputs it paves the way for an ultra-quiet PC that can, within reason, do it all.

Heatpipes :

Sapphire runs with a two-part heatsink that's connected via two 7mm heatpipes. A further 'pipe runs exclusively through the main heatsink. One could surmise that the clocks have been turned down to keep temperatures in check. Rather, the Ultimate ships with full-fat HD 5670 frequencies of 775MHz core and 4,000MHz memory. Lovely.

Test Setup:

• Processor : ASUS P7P55D Premium
• RAM : 2x2GB Kingston DDR3 1,333MHz
• Power Supply : Corsair HX1000W
• Display : Dell 30in 3007WFP - 2,560x1,600px
• SSD : Corsair V128
• OS Windows 7 Ultimate x64

Benchmarks:

Aliens vs. Predator, Battlefield: Bad Company 2, Call of Duty: Modern Warfare 2, Crysis Warhead, DiRT 2, Temperature, Power consumption, Noise.

Compared to:

Sapphire Radeon HD 5770 1,024MB