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/ Comparison of AMD Radeon HD 7970 GHz Edition and Radeon HD 7990
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Comparison of AMD Radeon HD 7970 GHz Edition and Radeon HD 7990
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Attribute
AMD Radeon HD 7970 GHz Edition
×
Radeon HD 7990
×
GPU
Release year (year)
2012
2013
Reference card
AMD Radeon HD 7970 925 MHz 3 GB
AMD Radeon HD 7990 950 MHz 6 GB
GPU brand
AMD
AMD
GPU name
Tahiti XT2
Malta
Market
Desktop
Desktop
Clock speed (MHz)
1,000
950
Turbo clock speed (MHz)
1,050
1,000
Is dual GPU
-
+
Model
AMD Radeon HD 7970 GHz Edition
Radeon HD 7990
Memory
1
↑
Memory (MB)
3,072
6,144
Memory bandwidth (GB/s)
288
576
Memory bus (bit)
384
768
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)
300
375
Load power consumption (W)
360
573
Idle power consumption (W)
112
135
Load noise level (dB)
53.1
60
Idle noise level (dB)
40.2
43
Raw performance
Pixel rate (GPixel/s)
33.6
64
Render output processors
32
64
Texture mapping units
128
256
Shading units
2,048
4,096
Floating-point performance (GFLOPS)
4,301
8,192
Compute units
32
64
Texture rate (GTexel/s)
134.4
256
Benchmarks
Crysis 3
28.3
-
Bioshock Infinite
78
-
Cloud Gate Factor
-
23
Face detection (mPixels/s)
94.02
90.43
T-Rex (GFXBench 3.0)
2798.85
3356.38
Manhattan (GFXBench 3.0)
2984.22
3716.14
Bitcoin mining (mHash/s)
487.62
458.53
Sky Diver Factor
380.04
393.8
Fire Strike Factor
62.9
75.52
Ocean surface simulation (frames/s)
-
1833.02
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