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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
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
1
↑
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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