"Today's comparison is the GTX 580, overclocked to the fastest speed we have seen advertised by a manufacturer on standard air cooling against the 6870 in Crossfire with the same highest overclock rule. In addition to that we will also add the 5970, in full. Each of the cards will be tested in a selection of the latest games including Call of Duty: Black Ops, F1 2010 (DX11 Patch) and Fallout: New Vegas with the latest patch."
FULL STORY @ HARDWAREHEAVEN (http://www.hardwareheaven.com/reviews/1062/pg1/nvidia-gtx-580-oc-vs-radeon-6870-oc-crossfire-vs-radeon-5970-introduction.html)
“Are you an avid water cooling user? Then you have probably heard the Koolance name before, and if you say “No never heard of them” then you are probably the only one. Luckily, we have the opportunity to test one of their new full cover GPU water blocks on the Radeon 5870 graphics card. Let’s find out how well it performs in keeping the beast cool and quiet.”
FULL STORY @ PUREOVERCLOCK (http://www.pureoverclock.com/article938.html)