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BFG GeForce 9800 GX2 1GB Video Card
Video Quality, Power Usage & Noise, and Overclocking
HQV
(Show All Graphs)
130
130
130
130
130
130
130
130
128
128
128
128
122
115
0
Score (out of 130, higher is better)
160
100
100
100
100
100
100
100
100
100
100
95
95
90
80
0
Score (out of 130, higher is better)
160
The 9800 GX2 has no problems playing video; like the GTX, it doesn't quite clear away all the noise (SD only) by default, but that stuff is tweakable in the NVIDIA control panel. 
Power Consumption
(Show All Graphs)
17
19
32
39
39
43
45
45
65
67
70
75
77
98
0
Watts (lower is better)
250
32
66
67
69
73
95
104
110
125
130
148
166
179
191
0
Watts (lower is better)
250
And blam, it hits a wall. I guess you can call this a kind of victory; a GX2 puts a 2900 XT to shame, power-wise. It's really surpising that the fan stays as quiet as it does--must be all the baffling--but the card does get alarmingly hot. On my workbench, I couldn't succeed at getting it to flame out, but there are plenty of people online who claim otherwise. This card needs good ventilation, or you're asking for trouble. For the record, a GX2 is quiet, on par with a 3870 and definitely less noisy than a GTX. If that means nothing to you, unless you demand absolute silence from your PC, stock cooling is probably a non-issue. Good thing, too, 'cause good luck with the aftermarket.  With the, er, unique cooling, I can't say for sure that overclocking is a guarantee. I didn't get much extra at all, and that's in an open-air environment (as you can see, it wasn't even worth making a graph for). But there are tales of much better overclocks out there, with the exact same card, even. Bad luck, it must just be bad luck.
Page 1: Introduction, First Looks, Specifications & Test Setup
Page 2: DirectX 10 Titles Page 3: DX9, OpenGL, and Synthetics Page 4: Video, Power, and Overclocking Page 5: Conclusion 
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