Cast your vote Do you agree or disagree with GPUBoss?

Thanks for adding your opinion. Follow us on Facebook to stay up to date with the latest news!

Differences What are the advantages of each

Front view of Radeon HD 6670

Reasons to consider the
AMD Radeon HD 6670

Report a correction
Much higher effective memory clock speed 4,000 MHz vs 1,000 MHz 4x higher effective memory clock speed
Higher clock speed 800 MHz vs 550 MHz More than 45% higher clock speed
Higher memory bandwidth 64 GB/s vs 16 GB/s 4x higher memory bandwidth
Significantly higher memory clock speed 1,000 MHz vs 500 MHz 2x higher memory clock speed
Front view of Radeon HD 6490

Reasons to consider the
AMD Radeon HD 6490

Report a correction
Lower TDP 39W vs 66W More than 40% lower TDP

Features Key features of the Radeon HD 6670  vs 6490 

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

Radeon HD 6670
64 GB/s
Radeon HD 6490
16 GB/s

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

Radeon HD 6670
6.4 GPixel/s
Radeon HD 6490
4.4 GPixel/s

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

Radeon HD 6670
19.2 GTexel/s
Radeon HD 6490
8.8 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6670
Radeon HD 6490

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 6670  vs
GPU name Turks XT Redwood
Market Desktop Desktop
Clock speed 800 MHz 550 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 480 320
Texture mapping units 24 16
Render output processors 8 8
Compute units 6 4
Pixel rate 6.4 GPixel/s 4.4 GPixel/s
Texture rate 19.2 GTexel/s 8.8 GTexel/s
Floating-point performance 768 GFLOPS 352 GFLOPS


Radeon HD 6670  vs
Memory clock speed 1,000 MHz 500 MHz
Effective memory clock speed 4,000 MHz 1,000 MHz
Memory bus 128 bit 128 bit
Memory 1,024 MB 1,024 MB
Memory type GDDR5 DDR2
Memory bandwidth 64 GB/s 16 GB/s

noise and power

TDP 66W 39W

Read more


comments powered by Disqus