Radeon HD 4670 X2 

Released September, 2008
  • 750 MHz
  • 1 GB GDDR3

Features Key features of the Radeon HD 4670 X2

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

Radeon HD 4670 X2
44.8 GB/s
GeForce GTX 280
141.7 GB/s
GeForce GT 440
28.8 GB/s

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

Radeon HD 4670 X2
12 GPixel/s
GeForce GT 440
3.24 GPixel/s
GeForce GTX 280
19.26 GPixel/s

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

Radeon HD 4670 X2
48 GTexel/s
GeForce GT 440
12.96 GTexel/s
GeForce GTX 280
48.16 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 4670 X2
960 GFLOPS
GeForce GT 440
311.04 GFLOPS
GeForce GTX 280
622.1 GFLOPS

shading units Subcomponents of the gpu, these run in parallel to enable fast pixel shading

Radeon HD 4670 X2
640

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

Radeon HD 4670 X2
64

Specifications Full list of technical specs

gpu

GPU brand ATI
GPU name RV730
Market Desktop
Clock speed 750 MHz
Is dual GPU Yes
Reference card None

raw performance

Shading units 640
Texture mapping units 64
Render output processors 16
Compute units 8
Pixel rate 12 GPixel/s
Texture rate 48 GTexel/s
Floating-point performance 960 GFLOPS

memory

Memory clock speed 700 MHz
Effective memory clock speed 1,400 MHz
Memory bus 256 bit
Memory 1,024 MB
Memory type GDDR3
Memory bandwidth 44.8 GB/s

noise and power

TDP 118W
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