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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
1
↑
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
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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