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/ Comparison of Radeon HD 8490 and Radeon HD 7650A
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Comparison of Radeon HD 8490 and Radeon HD 7650A
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Attribute
Radeon HD 8490
×
Radeon HD 7650A
×
GPU
Release year (year)
2013
2012
GPU brand
AMD
AMD
GPU name
Caicos XTX
Onega
Market
Desktop
Laptop
Clock speed (MHz)
875
600
Is dual GPU
-
-
Model
Radeon HD 8490
Radeon HD 7650A
Memory
Memory (MB)
1,024
1,024
Memory bandwidth (GB/s)
14.4
28.8
Memory bus (bit)
64
128
1
↑
Memory type
DDR3
DDR3
Memory clock speed (MHz)
900
900
Effective memory clock speed (MHz)
1,800
1,800
Noise and power
TDP (W)
35
33
Raw performance
Pixel rate (GPixel/s)
3.5
4.8
Render output processors
4
8
Texture mapping units
8
24
Shading units
160
480
Floating-point performance (GFLOPS)
280
576
Compute units
2
6
Texture rate (GTexel/s)
7
14.4
Benchmarks
Particle simulation (mInteraction/s)
-
90.53
T-Rex (Compubench 1.5) (frames/s)
-
0.43
Video composition (frames/s)
-
13.3
Cloud Gate Factor
6.58
-
Face detection (mPixels/s)
2.02
4.43
T-Rex (GFXBench 3.0)
1776.24
1342.64
Manhattan (GFXBench 3.0)
1074.06
945.04
Bitcoin mining (mHash/s)
13.08
53.84
Sky Diver Factor
36.55
-
Fire Strike Factor
4.53
-
Ocean surface simulation (frames/s)
126.59
259.83
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