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Differences What are the advantages of each

Front view of Radeon HD 8400E

Reasons to consider the
AMD Radeon HD 8400E

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Lower TDP 25W vs 45W Around 45% lower TDP
Front view of GeForce GT 740M

Reasons to consider the
Nvidia GeForce GT 740M

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Much better T-Rex score 3,334 vs 1,665.75 More than 2x better T-Rex score
Higher clock speed 810 MHz vs 600 MHz 35% higher clock speed
Better PassMark score 772 vs 341 More than 2.2x better PassMark score
More memory 2,048 MB vs 512 MB 4x more memory
Higher effective memory clock speed 1,802 MHz vs 1,066 MHz Around 70% higher effective memory clock speed
Slightly higher memory bandwidth 28.83 GB/s vs 8.53 GB/s Around 3.5x higher memory bandwidth
Higher texture rate 25.92 GTexel/s vs 4.8 GTexel/s Around 5.5x higher texture rate
More render output processors 16 vs 4 12 more render output processors
Significantly higher memory clock speed 901 MHz vs 533 MHz Around 70% higher memory clock speed
More texture mapping units 32 vs 8 24 more texture mapping units
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Better PassMark direct compute score 723 vs 193 Around 3.8x better PassMark direct compute score
More shading units 384 vs 160 224 more shading units

Benchmarks Real world tests of Radeon HD 8400E vs GeForce GT 740M

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Manhattan (GFXBench 3.0) Data courtesy CompuBench

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

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