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/ Comparison of Radeon HD 7870 XT and AMD Radeon HD 7970 GHz Edition
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Comparison of Radeon HD 7870 XT and AMD Radeon HD 7970 GHz Edition
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Attribute
Radeon HD 7870 XT
×
AMD Radeon HD 7970 GHz Edition
×
GPU
Release year (year)
2012
2012
Reference card
-
AMD Radeon HD 7970 925 MHz 3 GB
GPU brand
AMD
AMD
GPU name
Tahiti LE
Tahiti XT2
Market
Desktop
Desktop
Clock speed (MHz)
925
1,000
Turbo clock speed (MHz)
975
1,050
Is dual GPU
-
-
Model
Radeon HD 7870 XT
AMD Radeon HD 7970 GHz Edition
Memory
Memory (MB)
2,048
3,072
Memory bandwidth (GB/s)
192
288
Memory bus (bit)
256
384
1
↓
Memory type
GDDR5
GDDR5
Memory clock speed (MHz)
1,500
1,500
Effective memory clock speed (MHz)
6,000
6,000
Noise and power
TDP (W)
185
300
Load power consumption (W)
-
360
Idle power consumption (W)
-
112
Load noise level (dB)
-
53.1
Idle noise level (dB)
-
40.2
Raw performance
Pixel rate (GPixel/s)
31.2
33.6
Render output processors
32
32
Texture mapping units
96
128
Shading units
1,536
2,048
Floating-point performance (GFLOPS)
2,995
4,301
Compute units
24
32
Texture rate (GTexel/s)
93.6
134.4
Benchmarks
Metro: Last Light
79.5
-
Battlefield 3
72
-
Crysis 3
-
28.3
Bioshock Infinite
-
78
Face detection (mPixels/s)
65.4
94.02
T-Rex (GFXBench 3.0)
3350.68
2798.85
Manhattan (GFXBench 3.0)
3705.76
2984.22
Bitcoin mining (mHash/s)
345.79
487.62
Sky Diver Factor
314
380.04
Fire Strike Factor
47.56
62.9
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