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Differences What are the advantages of each

Front view of Radeon HD 8670

Reasons to consider the
AMD Radeon HD 8670

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Significantly higher clock speed 1,000 MHz vs 810 MHz Around 25% higher clock speed
Higher effective memory clock speed 4,600 MHz vs 3,200 MHz Around 45% higher effective memory clock speed
More memory 2,048 MB vs 1,024 MB 2x more memory
Slightly higher memory bandwidth 73.6 GB/s vs 51.2 GB/s Around 45% higher memory bandwidth
Higher memory clock speed 1,150 MHz vs 800 MHz Around 45% higher memory clock speed
Front view of GeForce GT 630

Reasons to consider the
EVGA GeForce GT 630

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Slightly lower TDP 65W vs 75W Around 15% lower TDP

Features Key features of the Radeon HD 8670  vs GeForce GT 630 

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

Radeon HD 8670
73.6 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 8670
8 GPixel/s
GeForce GT 630
3.24 GPixel/s

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

Radeon HD 8670
24 GTexel/s
GeForce GT 630
13 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8670
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 8670  vs
GeForce GT 630 
GPU brand AMD Nvidia
GPU name Oland XT GF108
Market Desktop Desktop
Clock speed 1,000 MHz 810 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GT 630 810 MHz 1 GB

raw performance

Shading units 384 96
Texture mapping units 24 16
Render output processors 8 4
Pixel rate 8 GPixel/s 3.24 GPixel/s
Texture rate 24 GTexel/s 13 GTexel/s
Floating-point performance 768 GFLOPS 311 GFLOPS


Radeon HD 8670  vs
GeForce GT 630 
Memory clock speed 1,150 MHz 800 MHz
Effective memory clock speed 4,600 MHz 3,200 MHz
Memory bus 128 bit 128 bit
Memory 2,048 MB 1,024 MB
Memory type GDDR5 GDDR5
Memory bandwidth 73.6 GB/s 51.2 GB/s

noise and power

TDP 75W 65W

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