Idle numbers were recorded after leaving the system resting in the desktop for 15 minutes. Load numbers were achieved by running Crysis Warhead at Enthusiast settings at 1920×1200.
These figures are exactly as we expected – while the Sapphire card is more thermally efficient it requires slightly higher voltages to run permanently at the enhanced clock speeds. The 5870 under load uses around 35-40 watts more when compared with the Toxic card.