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/ Comparison of AMD Radeon HD - FirePro D300 Compute Engine and GeForce GTX 775M Mac
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Comparison of AMD Radeon HD - FirePro D300 Compute Engine and GeForce GTX 775M Mac
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Attribute
GeForce GTX 775M Mac
×
AMD Radeon HD - FirePro D300 Compute Engine
×
GPU
Release year (year)
2013
2014
GPU brand
Nvidia
AMD
GPU name
GK104
Pitcairn
Market
Laptop
-
Clock speed (MHz)
797
850
Is dual GPU
-
-
Model
GeForce GTX 775M Mac
AMD Radeon HD - FirePro D300 Compute Engine
Memory
Memory (MB)
2,048
2,048
Memory bandwidth (GB/s)
160
162.6
Memory bus (bit)
256
256
Memory type
GDDR5
GDDR5
Memory clock speed (MHz)
1,250
1,270
1
↑
Effective memory clock speed (MHz)
5,000
5,080
Noise and power
TDP (W)
100
150
Raw performance
Pixel rate (GPixel/s)
22.32
27.2
Render output processors
32
32
Texture mapping units
112
80
Shading units
1,344
1,280
Floating-point performance (GFLOPS)
2,142
2,176
Compute units
-
20
Texture rate (GTexel/s)
89.3
68
Benchmarks
Particle simulation (mInteraction/s)
280.4
307
T-Rex (Compubench 1.5) (frames/s)
3.11
1
Video composition (frames/s)
56.67
70.69
Face detection (mPixels/s)
30.36
48.05
T-Rex (GFXBench 3.0)
3357.2
3351.76
Manhattan (GFXBench 3.0)
3716.26
3712.58
Bitcoin mining (mHash/s)
66.6
242.18
Ocean surface simulation (frames/s)
1075.94
1192.55
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