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Differences What are the advantages of each

Front view of Radeon HD 6750M Mac

Reasons to consider the
AMD Radeon HD 6750M Mac

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Lower TDP 35W vs 75W 2.1x lower TDP
Front view of GeForce GTX 765M

Reasons to consider the
Nvidia GeForce GTX 765M

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Higher clock speed 797 MHz vs 598 MHz Around 35% higher clock speed
More memory 2,048 MB vs 512 MB 4x more memory
Higher texture rate 51 GTexel/s vs 14.35 GTexel/s More than 3.5x higher texture rate
Higher effective memory clock speed 4,008 MHz vs 3,176 MHz More than 25% higher effective memory clock speed
Better floating-point performance 1,224.2 GFLOPS vs 574.1 GFLOPS Around 2.2x better floating-point performance
More texture mapping units 64 vs 24 40 more texture mapping units
Higher pixel rate 12.75 GPixel/s vs 4.78 GPixel/s Around 2.8x higher pixel rate
More render output processors 16 vs 8 Twice as many render output processors
More shading units 768 vs 480 288 more shading units
Higher memory clock speed 1,002 MHz vs 794 MHz More than 25% higher memory clock speed

Features Key features of the Radeon HD 6750M Mac  vs GeForce GTX 765M 

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

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

Radeon HD 6750M Mac
4.78 GPixel/s
GeForce GTX 765M
12.75 GPixel/s

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

Radeon HD 6750M Mac
14.35 GTexel/s
GeForce GTX 765M
51 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6750M Mac
574.1 GFLOPS
GeForce GTX 765M
1,224.2 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 6750M Mac  vs
GeForce GTX 765M 
GPU brand AMD Nvidia
GPU name Whistler GK106
Market Laptop Laptop
Clock speed 598 MHz 797 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 480 768
Texture mapping units 24 64
Render output processors 8 16
Pixel rate 4.78 GPixel/s 12.75 GPixel/s
Texture rate 14.35 GTexel/s 51 GTexel/s
Floating-point performance 574.1 GFLOPS 1,224.2 GFLOPS

memory

Radeon HD 6750M Mac  vs
GeForce GTX 765M 
Memory clock speed 794 MHz 1,002 MHz
Effective memory clock speed 3,176 MHz 4,008 MHz
Memory bus 128 bit 128 bit
Memory 512 MB 2,048 MB
Memory type GDDR5 GDDR5
Memory bandwidth 50.8 GB/s 64.1 GB/s

noise and power

TDP 35W 75W

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