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Sapphire Radeon HD 4890 1GB OC
Video, Power, and Overclocking
HQV
130
130
130
130
130
0
Score (130 = highest)
149.5
HQV
100
100
100
100
100
0
Score (100 = highest)
115
Like all 4000-series cards, Sapphire's 4890 excels with video. 
Power Consumption
(Show All Graphs)
56
59
65
75
116
0
Watts (lower is better)
247.25
120
125
141
169
215
0
Watts (lower is better)
247.25
Power consumption is a bit mixed. Sure, it idles a lot lower, and that's not only expected but really required. 4870s were competing for most wasteful, so it's great to see that the 4890 does considerably better there. But under a full load, things go up a bit. I don't know how some websites are metering this card out to 250W, that's plainly more than this card can draw, but it does close in on 150W wide open. So it idles about ten watts lower than its older sib, but loads almost 20W more. Noise and temps don't seem too different from any other cards in this class. That is to say, in a cramped case or under even a moderate load, you'll hear this 4890. And it can pick up--this is unfortunate in that it's not an across-the-board improvement, but it's also something the enthusiast has gotten somewhat adjusted to (I hope--otherwise, best of luck holding out until some 4890s with non-stock fans hit the market). 
Overclocking
(Show All Graphs)
990
900
0
MHz (higher is better)
1276.5
1110
975
0
MHz (higher is better)
1276.5
Like all HD 4000s, this card runs on the hot side. This hasn't been a problem before and isn't now, either. This card was fine with a slightly greater than ten percent overclock, evenly split between the GPU and memory.
Page 1: Introduction, The Card & Bundle
Page 2: Specifications and Setup Page 3: DirectX 10 Titles Page 4: DX9, OpenGL, and Synthetics Page 5: Video, Power, and Overclocking Page 6: Conclusion 
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