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/ Comparison of Radeon HD 7950 and Radeon HD 7870
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Comparison of Radeon HD 7950 and Radeon HD 7870
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Attribute
Radeon HD 7870
×
Radeon HD 7950
×
GPU
Release year (year)
2012
2012
GPU brand
AMD
AMD
1
↑
GPU name
Pitcairn XT
Tahiti PRO
Market
Desktop
Desktop
Clock speed (MHz)
1,000
800
Is dual GPU
-
-
Model
Radeon HD 7870
Radeon HD 7950
Memory
Memory (MB)
2,048
3,072
Memory bandwidth (GB/s)
153.6
240
Memory bus (bit)
256
384
Memory type
GDDR5
GDDR5
Memory clock speed (MHz)
1,200
1,250
Effective memory clock speed (MHz)
4,800
5,000
Noise and power
TDP (W)
175
200
Load power consumption (W)
295
321
Idle power consumption (W)
108
112
Load noise level (dB)
48.8
53.1
Idle noise level (dB)
39.5
40.7
Raw performance
Pixel rate (GPixel/s)
32
25.6
Render output processors
32
32
Texture mapping units
80
112
Shading units
1,280
1,792
Floating-point performance (GFLOPS)
2,560
2,867
Compute units
20
28
Texture rate (GTexel/s)
80
89.6
Benchmarks
Crysis 3
25.8
45
Battlefield 4
43
33.5
Face detection (mPixels/s)
55.45
77.81
T-Rex (GFXBench 3.0)
3352.76
3359.66
Manhattan (GFXBench 3.0)
3714.8
3712.14
Bitcoin mining (mHash/s)
294.21
382.11
Sky Diver Factor
324.89
355.06
Fire Strike Factor
50.19
57.91
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