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/ Comparison of Radeon HD 8670M and NVIDIA Quadro K620
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Comparison of Radeon HD 8670M and NVIDIA Quadro K620
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Attribute
Radeon HD 8670M
×
NVIDIA Quadro K620
×
GPU
Release year (year)
2013
2014
Reference card
AMD Radeon HD 8670M 925 MHz 1 GB
-
GPU brand
AMD
Nvidia
GPU name
Mars
GM107
Market
Laptop
-
Clock speed (MHz)
775
1,058
Turbo clock speed (MHz)
825
1,124
Is dual GPU
-
-
Model
Radeon HD 8670M
NVIDIA Quadro K620
Memory
1
↑
Memory (MB)
2,048
2,048
Memory bandwidth (GB/s)
14.4
28.8
Memory bus (bit)
64
128
Memory type
DDR3
DDR3
Memory clock speed (MHz)
900
900
Effective memory clock speed (MHz)
1,800
1,800
Noise and power
TDP (W)
-
41
Raw performance
Pixel rate (GPixel/s)
6.6
16.93
Render output processors
8
16
Texture mapping units
24
16
Shading units
384
384
Floating-point performance (GFLOPS)
634
812
Compute units
6
-
Texture rate (GTexel/s)
19.8
16.93
Benchmarks
Metro: Last Light
4.7
11
Bioshock Infinite
5.5
15
Face detection (mPixels/s)
7
25.44
T-Rex (GFXBench 3.0)
3046.08
3354.04
Manhattan (GFXBench 3.0)
1726.77
2515.31
Bitcoin mining (mHash/s)
71.7
97.66
Sky Diver Factor
83.25
-
Thief
-
10
Fire Strike Factor
8.11
-
Ocean surface simulation (frames/s)
-
299.75
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