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Differences What are the advantages of each

Front view of Radeon HD 6730M

Reasons to consider the
AMD Radeon HD 6730M

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More memory 2,048 MB vs 1,024 MB 2x more memory
Better floating-point performance 696 GFLOPS vs 141.7 GFLOPS Around 5x better floating-point performance
More shading units 480 vs 48 432 more shading units
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
More texture mapping units 24 vs 8 Three times as many texture mapping units
Front view of GeForce 705M

Reasons to consider the
Nvidia GeForce 705M

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Higher memory clock speed 900 MHz vs 800 MHz Around 15% higher memory clock speed
Lower TDP 15W vs 35W 2.3x lower TDP

Features Key features of the Radeon HD 6730M  vs GeForce 705M 

memory bandwidth Rate at which data can be read from or stored in onboard memory

Radeon HD 6730M
25.6 GB/s
GeForce 705M
14.4 GB/s

pixel rate Number of pixels a graphics card can render to the screen every second

Radeon HD 6730M
5.8 GPixel/s
GeForce 705M
1.48 GPixel/s

texture rate Speed at which a graphics card can perform texture mapping

Radeon HD 6730M
17.4 GTexel/s
GeForce 705M
5.9 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6730M
696 GFLOPS
GeForce 705M
141.7 GFLOPS

shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

Specifications Full list of technical specs

gpu

Radeon HD 6730M  vs
GeForce 705M 
GPU brand AMD Nvidia
GPU name Whistler GF117
Market Laptop Laptop
Clock speed 725 MHz 738 MHz
Is dual GPU No No
Reference card AMD Radeon HD 6730M 725 MHz 1 GB None

raw performance

Shading units 480 48
Texture mapping units 24 8
Render output processors 8 8
Pixel rate 5.8 GPixel/s 1.48 GPixel/s
Texture rate 17.4 GTexel/s 5.9 GTexel/s
Floating-point performance 696 GFLOPS 141.7 GFLOPS

memory

Radeon HD 6730M  vs
GeForce 705M 
Memory clock speed 800 MHz 900 MHz
Effective memory clock speed 1,600 MHz 1,800 MHz
Memory bus 128 bit 64 bit
Memory 2,048 MB 1,024 MB
Memory type GDDR3 DDR3
Memory bandwidth 25.6 GB/s 14.4 GB/s

noise and power

TDP 35W 15W

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