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Differences What are the advantages of each

Front view of Radeon R7 240

Reasons to consider the
AMD Radeon R7 240

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More memory 2,048 MB vs 512 MB 4x more memory
Lower TDP 30W vs 64W 2.1x lower TDP
Front view of Radeon HD 5670 640SP

Reasons to consider the
ATi Radeon HD 5670 640SP

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Significantly higher effective memory clock speed 4,000 MHz vs 1,800 MHz Around 2.2x higher effective memory clock speed
Higher memory bandwidth 64 GB/s vs 28.8 GB/s Around 2.2x higher memory bandwidth
Slightly better floating-point performance 960 GFLOPS vs 499.2 GFLOPS More than 90% better floating-point performance
More shading units 640 vs 320 Twice as many shading units
Slightly more texture mapping units 32 vs 20 12 more texture mapping units
Higher memory clock speed 1,000 MHz vs 900 MHz More than 10% higher memory clock speed

Features Key features of the Radeon R7 240  vs HD 5670 640SP 

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 R7 240
6.24 GPixel/s

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

Radeon R7 240
15.6 GTexel/s
Radeon HD 5670 640SP
24 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon R7 240
499.2 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 R7 240  vs
HD 5670 640SP 
GPU brand AMD ATI
GPU name Oland Juniper
Market Desktop Desktop
Clock speed 730 MHz 750 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 320 640
Texture mapping units 20 32
Render output processors 8 8
Compute units 5 8
Pixel rate 6.24 GPixel/s 6 GPixel/s
Texture rate 15.6 GTexel/s 24 GTexel/s
Floating-point performance 499.2 GFLOPS 960 GFLOPS

memory

Radeon R7 240  vs
HD 5670 640SP 
Memory clock speed 900 MHz 1,000 MHz
Effective memory clock speed 1,800 MHz 4,000 MHz
Memory bus 128 bit 128 bit
Memory 2,048 MB 512 MB
Memory type DDR3 GDDR5
Memory bandwidth 28.8 GB/s 64 GB/s

noise and power

TDP 30W 64W

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