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Differences What are the advantages of each

Front view of Radeon HD 7850M

Reasons to consider the
AMD Radeon HD 7850M

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Better PassMark score 1,372 vs 600 More than 2.2x better PassMark score
Better 3DMark 11 graphics score 14,111 vs 7,518 Around 90% better 3DMark 11 graphics score
Better 3DMark vantage graphics score 10,701 vs 4,254 More than 2.5x better 3DMark vantage graphics score
Higher effective memory clock speed 4,000 MHz vs 1,800 MHz Around 2.2x higher effective memory clock speed
Higher memory bandwidth 64 GB/s vs 14.4 GB/s Around 4.5x higher memory bandwidth
Better 3DMark06 score 2,467 vs 1,266.5 Around 95% better 3DMark06 score
More memory 2,048 MB vs 1,024 MB 2x more memory
Better floating-point performance 864 GFLOPS vs 240 GFLOPS More than 3.5x better floating-point performance
More shading units 640 vs 96 544 more shading units
Higher pixel rate 10.8 GPixel/s vs 2.5 GPixel/s More than 4.2x higher pixel rate
Higher texture rate 27 GTexel/s vs 10 GTexel/s Around 2.8x higher texture rate
More texture mapping units 40 vs 16 24 more texture mapping units
Better cloud gate factor score 11.92 vs 7.48 Around 60% better cloud gate factor score
More render output processors 16 vs 8 Twice as many render output processors
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Higher memory clock speed 1,000 MHz vs 900 MHz More than 10% higher memory clock speed
Better PassMark direct compute score 801 vs 550 More than 45% better PassMark direct compute score
Front view of GeForce 820M

Reasons to consider the
Nvidia GeForce 820M

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Lower TDP 15W vs 40W 2.7x lower TDP

Benchmarks Real world tests of Radeon HD 7850M vs GeForce 820M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

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

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

3DMark06 Industry standard benchmark that tests DirectX 9 GPU performance

Fire Strike Factor Data courtesy FutureMark

Sky Diver Factor Data courtesy FutureMark

Cloud Gate Factor Data courtesy FutureMark

PassMark Direct Compute Measures performance of general-purpose computing using Microsoft DirectCompute

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