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/ Comparison of Radeon HD 7870 XT and Radeon HD 6950
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Comparison of Radeon HD 7870 XT and Radeon HD 6950
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Attribute
Radeon HD 7870 XT
×
Radeon HD 6950
×
GPU
Release year (year)
2012
2011
Reference card
-
AMD Radeon HD 6950 800 MHz 2 GB
GPU brand
AMD
AMD
GPU name
Tahiti LE
Cayman PRO
Market
Desktop
Desktop
Clock speed (MHz)
925
880
Turbo clock speed (MHz)
975
-
Is dual GPU
-
-
Model
Radeon HD 7870 XT
Radeon HD 6950
Memory
Memory (MB)
2,048
2,048
Memory bandwidth (GB/s)
192
166.4
Memory bus (bit)
256
256
Memory type
GDDR5
GDDR5
Memory clock speed (MHz)
1,500
1,300
Effective memory clock speed (MHz)
6,000
5,200
Noise and power
1
↑
TDP (W)
185
200
Load power consumption (W)
-
326
Idle power consumption (W)
-
117
Load noise level (dB)
-
48.2
Idle noise level (dB)
-
42.7
Raw performance
Pixel rate (GPixel/s)
31.2
28.16
Render output processors
32
32
Texture mapping units
96
88
Shading units
1,536
1,408
Floating-point performance (GFLOPS)
2,995
2,478
Compute units
24
22
Texture rate (GTexel/s)
93.6
77.44
Benchmarks
Metro: Last Light
79.5
7.5
Battlefield 3
72
30
Face detection (mPixels/s)
65.4
17.01
T-Rex (GFXBench 3.0)
3350.68
3358.26
Manhattan (GFXBench 3.0)
3705.76
3714.44
Bitcoin mining (mHash/s)
345.79
251.55
Sky Diver Factor
314
242.26
Fire Strike Factor
47.56
35.2
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