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/ Comparison of Radeon R9 M270X and GeForce GTX 775M Mac
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Comparison of Radeon R9 M270X and GeForce GTX 775M Mac
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Attribute
GeForce GTX 775M Mac
×
Radeon R9 M270X
×
GPU
Release year (year)
2013
2015
Reference card
-
AMD Radeon R9 M270X 725 MHz 2 GB
GPU brand
Nvidia
AMD
GPU name
GK104
Saturn
Market
Laptop
Laptop
Clock speed (MHz)
797
900
1
↑
Turbo clock speed (MHz)
-
1,000
Is dual GPU
-
-
Model
GeForce GTX 775M Mac
Radeon R9 M270X
Memory
Memory (MB)
2,048
2,048
Memory bandwidth (GB/s)
160
88
Memory bus (bit)
256
128
Memory type
GDDR5
GDDR5
Memory clock speed (MHz)
1,250
1,375
Effective memory clock speed (MHz)
5,000
5,500
Noise and power
TDP (W)
100
-
Raw performance
Pixel rate (GPixel/s)
22.32
16
Render output processors
32
16
Texture mapping units
112
48
Shading units
1,344
768
Floating-point performance (GFLOPS)
2,142
1,536
Compute units
-
12
Texture rate (GTexel/s)
89.3
48
Benchmarks
Particle simulation (mInteraction/s)
280.4
377.8
T-Rex (Compubench 1.5) (frames/s)
3.11
6.37
Video composition (frames/s)
56.67
85.21
Face detection (mPixels/s)
30.36
63.98
T-Rex (GFXBench 3.0)
3357.2
3361.82
Manhattan (GFXBench 3.0)
3716.26
3717.76
Bitcoin mining (mHash/s)
66.6
314.57
Ocean surface simulation (frames/s)
1075.94
1314.72
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