Radeon HD 6490 

Released July, 2011
  • 550 MHz
  • 1 GB DDR2

Features Key features of the Radeon HD 6490

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

Radeon HD 6490
16 GB/s
Radeon R9 290X
320 GB/s
Radeon HD 4870
115.2 GB/s

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

Radeon HD 6490
4.4 GPixel/s
Radeon R9 290X
64 GPixel/s
Radeon HD 4870
12 GPixel/s

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

Radeon HD 6490
8.8 GTexel/s
Radeon R9 290X
176 GTexel/s
Radeon HD 4870
30 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6490
352 GFLOPS
Radeon R9 290X
5,632 GFLOPS
Radeon HD 4870
1,200 GFLOPS

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

Radeon HD 6490
320

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

Radeon HD 6490
16

Specifications Full list of technical specs

gpu

GPU brand AMD
GPU name Redwood
Market Desktop
Clock speed 550 MHz
Is dual GPU No
Reference card None

raw performance

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

memory

Memory clock speed 500 MHz
Effective memory clock speed 1,000 MHz
Memory bus 128 bit
Memory 1,024 MB
Memory type DDR2
Memory bandwidth 16 GB/s

noise and power

TDP 39W
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