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/ Comparison of AMD Radeon HD 7970 GHz Edition and Radeon R9 285
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Comparison of AMD Radeon HD 7970 GHz Edition and Radeon R9 285
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Attribute
Radeon R9 285
×
AMD Radeon HD 7970 GHz Edition
×
GPU
Release year (year)
2014
2012
Reference card
AMD Radeon R9 285 918 MHz 2 GB
AMD Radeon HD 7970 925 MHz 3 GB
GPU brand
AMD
AMD
GPU name
Tonga
Tahiti XT2
Market
Desktop
Desktop
Clock speed (MHz)
918
1,000
Turbo clock speed (MHz)
1,000
1,050
Is dual GPU
-
-
Model
Radeon R9 285
AMD Radeon HD 7970 GHz Edition
Memory
Memory (MB)
2,048
3,072
Memory bandwidth (GB/s)
176
288
Memory bus (bit)
256
384
Memory type
GDDR5
GDDR5
Memory clock speed (MHz)
1,375
1,500
1
↑
Effective memory clock speed (MHz)
5,500
6,000
Noise and power
TDP (W)
190
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)
29.38
33.6
Render output processors
32
32
Texture mapping units
112
128
Shading units
1,792
2,048
Floating-point performance (GFLOPS)
3,290
4,301
Compute units
28
32
Texture rate (GTexel/s)
102.8
134.4
Benchmarks
FarCry 3
35
-
Crysis 3
-
28.3
Bioshock Infinite
-
78
Face detection (mPixels/s)
72.8
94.02
T-Rex (GFXBench 3.0)
3355.84
2798.85
Manhattan (GFXBench 3.0)
3715.04
2984.22
Bitcoin mining (mHash/s)
391.4
487.62
Sky Diver Factor
344.37
380.04
Fire Strike Factor
50.84
62.9
Ocean surface simulation (frames/s)
1474.63
-
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