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Differences What are the advantages of each

Front view of Radeon HD 6490M

Reasons to consider the
AMD Radeon HD 6490M

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Higher effective memory clock speed 3,200 MHz vs 1,800 MHz Around 80% higher effective memory clock speed
Front view of GeForce 920M

Reasons to consider the
Nvidia GeForce 920M

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Higher clock speed 954 MHz vs 800 MHz Around 20% higher clock speed
More memory 2,048 MB vs 512 MB 4x more memory
Better 3DMark 11 graphics score 9,003.5 vs 5,571 More than 60% better 3DMark 11 graphics score
Better 3DMark vantage graphics score 5,032.5 vs 2,000.5 More than 2.5x better 3DMark vantage graphics score
Better 3DMark06 score 1,731 vs 601 Around 3x better 3DMark06 score
Higher texture rate 30.53 GTexel/s vs 6.4 GTexel/s More than 4.8x higher texture rate
Slightly better floating-point performance 732.7 GFLOPS vs 256 GFLOPS More than 2.8x better floating-point performance
More render output processors 16 vs 4 12 more render output processors
More texture mapping units 32 vs 8 24 more texture mapping units
More shading units 384 vs 160 224 more shading units
Slightly better face detection score 8.36 mPixels/s vs 2.55 mPixels/s More than 3.2x better face detection score
Higher memory clock speed 900 MHz vs 800 MHz Around 15% higher memory clock speed

Benchmarks Real world tests of Radeon HD 6490M vs GeForce 920M

3DMark 11 Graphics Industry standard benchmark that tests DirectX 11 GPU performance

3DMark Vantage Graphics Industry standard benchmark that tests DirectX 10 GPU performance

Radeon HD 6490M
2,000.5
GeForce 920M
5,032.5

Bitcoin mining Data courtesy CompuBench

Radeon HD 6490M
10.81 mHash/s
GeForce 920M
40.41 mHash/s

Face detection Data courtesy CompuBench

Radeon HD 6490M
2.55 mPixels/s
GeForce 920M
8.36 mPixels/s

Ocean surface simulation Data courtesy CompuBench

Radeon HD 6490M
96.4 frames/s
GeForce 920M
157.17 frames/s

Particle simulation Data courtesy CompuBench

Radeon HD 6490M
41.01 mInteraction/s
GeForce 920M
161.39 mInteraction/s

T-Rex (Compubench 1.5) Data courtesy CompuBench

Radeon HD 6490M
-1 frames/s
GeForce 920M
0.84 frames/s

Video composition Data courtesy CompuBench

Radeon HD 6490M
6 frames/s
GeForce 920M
15.36 frames/s

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