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Power Consumption

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6:49 AM - 05/15/2006 by Tino Kreiss
  Power Consumption (2D) in watts Power Consumption (3D) in watts
eVGA 7800 GS AGP 183 238
Sapphire 1600 Pro AGP 181 220
HIS X1900 XTX 143 358
Powercolor X1900 XTX 145 360
Gecube X1900 XTX 145 360
Sapphire X1900 XTX 145 360
HIS X1800 XT iTurbo 152 344
Sapphire X1800 XT OC 160 352
Sapphire X1800 XL 145 270
HIS X1800 XL 136 266
MSI RX1900 XTX-VT2D512E 140 355
Sapphire X1300 126 225
Sapphire X1300 Pro 125 226
Powercolor X1300 127 226
HIS X1600 XT iTurbo IceQ 130 238
Powercolor X1600 XT 130 242
Sapphire X1600 XT 132 240
Gecube X1800 GTO 133 253
Asus X1600 XT Silent 130 240
ATI Radeon X1900 XTX Crossfire 180 520

The power consumption of our test system ranged from 124 to 398 watts. The GeForce 7600 GT marked the low end in 2D mode at 124 W; the 7800 GT SLI combo marked the high end at 398 watts in 3D mode, with the 6800 GS SLI duo and the Radeon X1900 XTX close on its heels with 385 watts and 360 watts respectively. Combining two Radeon X1900 XTX cards in Crossfire mode drew about 520 watts; overclockers can expect power consumption to rise by an additional one to three percent as well. The peak values represent the maximum power draw that can be expected and were measured under full load.

Heat

  Temperature (2D) in degrees Celsius Temperature (2D) in degrees Fahrenheit Temperature (3D) in degrees Celsius Temperature (3D) in degrees Fahrenheit
eVGA 7800 GS AGP 52 126 68 154
Sapphire 1600 Pro AGP Temperature not displayed Temperature not displayed Temperature not displayed Temperature not displayed
HIS X1900 XTX 52 126 92 198
Powercolor X1900 XTX 54 129 94 201
Gecube X1900 XTX 54 129 94 201
Sapphire X1900 XTX 54 129 94 201
HIS X1800 XT iTurbo 61 142 91 196
Sapphire X1800 XT OC 62 144 91 196
Sapphire X1800 XL 60 140 74 165
HIS X1800 XL 59 138 70 158
MSI RX1900 XTX-VT2D512E 53 127 93 199
Sapphire X1300 Temperature not displayed Temperature not displayed Temperature not displayed Temperature not displayed
Sapphire X1300 Pro Temperature not displayed Temperature not displayed Temperature not displayed Temperature not displayed
Powercolor X1300 Temperature not displayed Temperature not displayed Temperature not displayed Temperature not displayed
HIS X1600 XT iTurbo IceQ Temperature not displayed Temperature not displayed Temperature not displayed Temperature not displayed
Powercolor X1600 XT Temperature not displayed Temperature not displayed Temperature not displayed Temperature not displayed
Sapphire X1600 XT Temperature not displayed Temperature not displayed Temperature not displayed Temperature not displayed
Gecube X1800 GTO 55 131 69 156
Asus X1600 XT Silent Temperature not displayed Temperature not displayed Temperature not displayed Temperature not displayed
ATI Radeon X1900 XTX Crossfire

Heat output has dropped noticeably on both the GeForce 7600 and 7900 cards, which Nvidia produces on an improved 90nm process. Even with its very high frequencies, the GeForce 7900 GTX only reaches a moderate 66°C, thanks to its very good cooling solution. However, it is the GeForce 7600 GT that produced the lowest heat in 2D mode - its large and silent cooler has no trouble coping with the card's moderate temperature of 44°C.

Graphics cards using Radeon 1300 and 1600 GPUs do not have a temperature sensor. The Radeon X1800 XT and X1900 XTX cards produce the most heat, operating at more than 90°C. The peak values represent the highest temperatures that are to be expected, and were measured under full load.

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