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Differences What are the advantages of each

Front view of Radeon HD 6870 1600SP

Reasons to consider the
Sapphire Radeon HD 6870 1600SP

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Better floating-point performance 2,880 GFLOPS vs 1,044.5 GFLOPS More than 2.8x better floating-point performance
Higher memory bandwidth 134.4 GB/s vs 80.2 GB/s Around 70% higher memory bandwidth
Significantly more shading units 1,600 vs 512 1088 more shading units
Higher texture rate 72 GTexel/s vs 32.6 GTexel/s Around 2.2x higher texture rate
More texture mapping units 80 vs 32 48 more texture mapping units
Higher pixel rate 28.8 GPixel/s vs 16.32 GPixel/s More than 75% higher pixel rate
More render output processors 32 vs 16 Twice as many render output processors
Wider memory bus 256 bit vs 128 bit 2x wider memory bus
Front view of GeForce GTX 750

Reasons to consider the
Nvidia GeForce GTX 750

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Higher clock speed 1,020 MHz vs 900 MHz Around 15% higher clock speed
Higher effective memory clock speed 5,012 MHz vs 4,200 MHz Around 20% higher effective memory clock speed
Higher memory clock speed 1,253 MHz vs 1,050 MHz Around 20% higher memory clock speed
Significantly lower TDP 55W vs 175W 3.2x lower TDP

Features Key features of the Radeon HD 6870 1600SP  vs GeForce GTX 750 

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

GeForce GTX 750
80.2 GB/s

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

Radeon HD 6870 1600SP
28.8 GPixel/s
GeForce GTX 750
16.32 GPixel/s

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

Radeon HD 6870 1600SP
72 GTexel/s
GeForce GTX 750
32.6 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6870 1600SP
2,880 GFLOPS
GeForce GTX 750
1,044.5 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 6870 1600SP  vs
GeForce GTX 750 
GPU brand AMD Nvidia
GPU name Cypress GM107
Market Desktop Desktop
Clock speed 900 MHz 1,020 MHz
Is dual GPU No No
Reference card AMD Radeon HD 6870 1600SP Edition 850 MHz 1 GB None

raw performance

Shading units 1,600 512
Texture mapping units 80 32
Render output processors 32 16
Pixel rate 28.8 GPixel/s 16.32 GPixel/s
Texture rate 72 GTexel/s 32.6 GTexel/s
Floating-point performance 2,880 GFLOPS 1,044.5 GFLOPS

memory

Radeon HD 6870 1600SP  vs
GeForce GTX 750 
Memory clock speed 1,050 MHz 1,253 MHz
Effective memory clock speed 4,200 MHz 5,012 MHz
Memory bus 256 bit 128 bit
Memory 1,024 MB 1,024 MB
Memory type GDDR5 GDDR5
Memory bandwidth 134.4 GB/s 80.2 GB/s

noise and power

TDP 175W 55W

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