PowerColor HD6990 LCS Review

Test Setup

As part of our Shadow H20 there are a few slightly different specifications to our normal test setup. However we are sure that the system is close enough to our normal one to maintain the validity of results comparison. The only change to be wary of between the PowerColor HD6990 LCS and the other results in our graphs is that they were done at 1920×1200 and this is 1920×1080, so they’ll be a slight improvement as there is 230000 less pixels to render.

Powercolor 6990 LCS with Catalyst 11.6 Drivers
Coolermaster HAF 932 Advanced
Rampage III Black Edition
Intel Core i7 990X @ 4.4 GHz – 200×22 1.35v
Phobya Watercooling:
G-Changer 360
DC12-260 pump
Balencer 150 Black Nickel Res
Nano-2G – 1500rpm PWM fans
Corsair AX850 PSU
Corsair Vengance 12GB RAM
Corsair 80GB SSD

Overclocking

Without the heat problem restricting our overclocking efforts the PowerColor was capable of some serious extra oomph. The GPU falling just shy of 1GHz and the GDDR5 having an extra 150 MHz.

Temperatures

Proving how efficient a water-cooling setup is, especially for graphics cards, we saw a maximum temperature of only 50°C. This is an incredible improvement over the 80°C-ish that we get from the stock air-cooled card.

Let’s get down to some benchmarks.