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Differences What are the advantages of each

Front view of Radeon HD 5670 640SP

Reasons to consider the
ATi Radeon HD 5670 640SP

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Higher clock speed 750 MHz vs 550 MHz More than 35% higher clock speed
Higher effective memory clock speed 4,000 MHz vs 3,400 MHz Around 20% higher effective memory clock speed
Better floating-point performance 960 GFLOPS vs 257.3 GFLOPS Around 3.8x better floating-point performance
More shading units 640 vs 96 544 more shading units
Higher memory clock speed 1,000 MHz vs 850 MHz Around 20% higher memory clock speed
Front view of GeForce GT 240

Reasons to consider the
Nvidia GeForce GT 240

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Slightly more memory 1,024 MB vs 512 MB 2x more memory

Features Key features of the Radeon HD 5670 640SP  vs GeForce GT 240 

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

GeForce GT 240
4.4 GPixel/s

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

Radeon HD 5670 640SP
24 GTexel/s
GeForce GT 240
17.6 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 240
257.3 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 5670 640SP  vs
GeForce GT 240 
GPU brand ATI Nvidia
GPU name Juniper GT215
Market Desktop Desktop
Clock speed 750 MHz 550 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 640 96
Texture mapping units 32 32
Render output processors 8 8
Pixel rate 6 GPixel/s 4.4 GPixel/s
Texture rate 24 GTexel/s 17.6 GTexel/s
Floating-point performance 960 GFLOPS 257.3 GFLOPS

memory

Radeon HD 5670 640SP  vs
GeForce GT 240 
Memory clock speed 1,000 MHz 850 MHz
Effective memory clock speed 4,000 MHz 3,400 MHz
Memory bus 128 bit 128 bit
Memory 512 MB 1,024 MB
Memory type GDDR5 GDDR5
Memory bandwidth 64 GB/s 54.4 GB/s

noise and power

TDP 64W 69W

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