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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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Better 3DMark 11 graphics score 5,571 vs 2,543 Around 2.2x better 3DMark 11 graphics score
Front view of GeForce GT 750M

Reasons to consider the
Nvidia GeForce GT 750M

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Much better 3DMark06 score 13,670 vs 601 Around 22.8x better 3DMark06 score
Better 3DMark vantage graphics score 8,200 vs 2,000.5 More than 4x better 3DMark vantage graphics score
Higher clock speed 941 MHz vs 800 MHz Around 20% higher clock speed
More memory 2,048 MB vs 512 MB 4x more memory
Higher memory bandwidth 64 GB/s vs 25.6 GB/s Around 2.5x higher memory bandwidth
Higher effective memory clock speed 4,000 MHz vs 3,200 MHz 25% higher effective memory clock speed
Higher texture rate 30.11 GTexel/s vs 6.4 GTexel/s Around 4.8x higher texture rate
Slightly better floating-point performance 722.7 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
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Higher memory clock speed 1,000 MHz vs 800 MHz 25% higher memory clock speed
More shading units 384 vs 160 224 more shading units
Slightly better video composition score 10.87 frames/s vs 6 frames/s More than 80% better video composition score

Benchmarks Real world tests of Radeon HD 6490M vs GeForce GT 750M

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

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

Bitcoin mining Data courtesy CompuBench

Radeon HD 6490M
10.81 mHash/s
GeForce GT 750M
27.59 mHash/s

Face detection Data courtesy CompuBench

Radeon HD 6490M
2.55 mPixels/s
GeForce GT 750M
16.18 mPixels/s

Ocean surface simulation Data courtesy CompuBench

Radeon HD 6490M
96.4 frames/s
GeForce GT 750M
251.62 frames/s

Particle simulation Data courtesy CompuBench

Radeon HD 6490M
41.01 mInteraction/s
GeForce GT 750M
146.77 mInteraction/s

T-Rex (Compubench 1.5) Data courtesy CompuBench

Radeon HD 6490M
-1 frames/s
GeForce GT 750M
1.14 frames/s

Video composition Data courtesy CompuBench

Radeon HD 6490M
6 frames/s
GeForce GT 750M
10.87 frames/s

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