Power Consumption
We tested the power consumption with a
Watts Up? Pro power meter, using the device to record the total system power consumption at the wall socket, while we ran three sets of four runs of
Crysis in DX10 at 1920x1200.
Using the data recorded by the meter we could determine the peak output, the consistent minimum and the average load over the entire run of tests.
As both ATI and Nvidia test benches are now identical Core i7 systems, we can accurately determine the apples to apples difference of what power both PCs take to run.
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BFG Tech GeForce GTX 285 OCX 1GB
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Nvidia GeForce GTX 260-216 896MB
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Nvidia GeForce GTX 285 1GB
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Zotac GeForce GTX 285 1GB AMP!
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Nvidia GeForce GTX 280 1GB
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Nvidia GeForce GTX 295 1,792MB
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Nvidia GeForce GTX 260-216 896MB SLI
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ATI Radeon HD 4870 1GB
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Sapphire ATI Radeon HD 4850 X2 2GB
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ATI Radeon HD 4870 512MB
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Nvidia GeForce GTX 280 1GB SLI
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ATI Radeon HD 4870 X2 2GB
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ATI Radeon HD 4870 1GB CrossFire
0
50
100
150
200
250
300
350
Power at socket (W)
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Nvidia GeForce GTX 260-216 896MB
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ATI Radeon HD 4870 512MB
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ATI Radeon HD 4870 1GB
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Nvidia GeForce GTX 285 1GB
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Nvidia GeForce GTX 280 1GB
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BFG Tech GeForce GTX 285 OCX 1GB
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Zotac GeForce GTX 285 1GB AMP!
-
Sapphire ATI Radeon HD 4850 X2 2GB
-
Nvidia GeForce GTX 295 1,792MB
-
ATI Radeon HD 4870 X2 2GB
-
Nvidia GeForce GTX 260-216 896MB SLI
-
ATI Radeon HD 4870 1GB CrossFire
-
Nvidia GeForce GTX 280 1GB SLI
0
100
200
300
400
500
600
Power at socket (W)
-
Nvidia GeForce GTX 260-216 896MB
-
ATI Radeon HD 4870 512MB
-
ATI Radeon HD 4870 1GB
-
Nvidia GeForce GTX 280 1GB
-
Nvidia GeForce GTX 285 1GB
-
BFG Tech GeForce GTX 285 OCX 1GB
-
Zotac GeForce GTX 285 1GB AMP!
-
Sapphire ATI Radeon HD 4850 X2 2GB
-
Nvidia GeForce GTX 295 1,792MB
-
Nvidia GeForce GTX 260-216 896MB SLI
-
ATI Radeon HD 4870 X2 2GB
-
ATI Radeon HD 4870 1GB CrossFire
-
Nvidia GeForce GTX 280 1GB SLI
0
100
200
300
400
500
600
Power at socket (W)
Interestingly, the BFG Tech GeForce GTX 285 OCX's idle power consumption is much lower than what we recorded for the other GeForce GTX 285s we've tested so far - it's around 9W better, which equates to just over four percent. At load, power consumption increases to somewhere in line with expectations - it draws roughly the same amount of power as the Zotac GeForce GTX 285 on average and at peak as well.
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