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/ Comparison of Radeon HD 7970M and GeForce GTX 775M Mac
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Comparison of Radeon HD 7970M and GeForce GTX 775M Mac
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Attribute
Radeon HD 7970M
×
GeForce GTX 775M Mac
×
GPU
Release year (year)
2012
2013
GPU brand
AMD
Nvidia
GPU name
Wimbledon
GK104
Market
Laptop
Laptop
Clock speed (MHz)
850
797
Is dual GPU
-
-
Model
Radeon HD 7970M
GeForce GTX 775M Mac
Memory
Memory (MB)
2,048
2,048
Memory bandwidth (GB/s)
153.6
160
Memory bus (bit)
256
256
Memory type
GDDR5
GDDR5
Memory clock speed (MHz)
1,200
1,250
Effective memory clock speed (MHz)
4,800
5,000
Noise and power
TDP (W)
100
100
Raw performance
Pixel rate (GPixel/s)
27.2
22.32
Render output processors
32
32
Texture mapping units
80
112
1
↑
Shading units
1,280
1,344
Floating-point performance (GFLOPS)
2,176
2,142
Compute units
20
-
Texture rate (GTexel/s)
68
89.3
Benchmarks
Particle simulation (mInteraction/s)
-
280.4
T-Rex (Compubench 1.5) (frames/s)
-
3.11
Video composition (frames/s)
-
56.67
Battlefield 4
35.3
-
Face detection (mPixels/s)
51.64
30.36
T-Rex (GFXBench 3.0)
3339.58
3357.2
Manhattan (GFXBench 3.0)
3713.82
3716.26
Bitcoin mining (mHash/s)
257.3
66.6
Sky Diver Factor
271.71
-
Thief
33.5
-
Fire Strike Factor
46.48
-
Ocean surface simulation (frames/s)
-
1075.94
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