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Differences What are the advantages of each

Front view of Radeon HD 5670

Reasons to consider the
ATi Radeon HD 5670

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Higher effective memory clock speed 4,000 MHz vs 3,200 MHz 25% higher effective memory clock speed
Higher memory clock speed 1,000 MHz vs 800 MHz 25% higher memory clock speed
Slightly more shading units 400 vs 96 304 more shading units
Front view of GeForce GT 630

Reasons to consider the
EVGA GeForce GT 630

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Slightly higher clock speed 810 MHz vs 775 MHz Around 5% higher clock speed

Features Key features of the Radeon HD 5670  vs GeForce GT 630 

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

Radeon HD 5670
64 GB/s
GeForce GT 630
51.2 GB/s

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

Radeon HD 5670
6.2 GPixel/s
GeForce GT 630
3.24 GPixel/s

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

Radeon HD 5670
15.5 GTexel/s
GeForce GT 630
13 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 5670
GeForce GT 630

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


Radeon HD 5670  vs
GeForce GT 630 
GPU brand ATI Nvidia
GPU name Redwood GF108
Market Desktop Desktop
Clock speed 775 MHz 810 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GT 630 810 MHz 1 GB

raw performance

Shading units 400 96
Texture mapping units 20 16
Render output processors 8 4
Pixel rate 6.2 GPixel/s 3.24 GPixel/s
Texture rate 15.5 GTexel/s 13 GTexel/s
Floating-point performance 620 GFLOPS 311 GFLOPS


Radeon HD 5670  vs
GeForce GT 630 
Memory clock speed 1,000 MHz 800 MHz
Effective memory clock speed 4,000 MHz 3,200 MHz
Memory bus 128 bit 128 bit
Memory 1,024 MB 1,024 MB
Memory type GDDR5 GDDR5
Memory bandwidth 64 GB/s 51.2 GB/s

noise and power

TDP 64W 65W

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