GeForce FX 5700 Ultra with GDDR3 @ HotHardware
"At stock clock speeds, the thermal probe read a temperature that was only 4.5°C above ambient. At this temperature the rear of the PCB directly behind the RAM was just barely warm to the touch. As expected, when we overclocked the card, the temperature readings went way up. According to our decidedly unscientific setup, the temperature peaked at 34.4°C, which is a big jump considering we're measuring temperatures on the underside of the PCB, the actual temperature of the chips would be somewhat higher. However, at 34.4°C we wouldn't say the GDDR3 memory was running terribly hot."
In this review they did get the DDR3 memory to run at around 1.11Ghz, not too shabby considering the 1.06Ghz overclock we got from our Chaintech AA5700U using DDR2 though hardly enough to get all excited over.
It makes you wonder what the manufactures do in terms of "enhanced" clock speeds now that DDR3 is available. We should find out soon enough. 
Related Web URL: http://www.hothardware.com/hh_files/S&V/fx5700_gdd...
