Radeon HD 6390 

Released July, 2011
  • 550 MHz
  • 1 GB DDR2

Features Key features of the Radeon HD 6390

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

Radeon HD 6390
16 GB/s
GeForce GTX 560 Ti
134.4 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 6390
4.4 GPixel/s
GeForce GTX 560 Ti
15.2 GPixel/s
GeForce GT 630
3.24 GPixel/s

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

Radeon HD 6390
8.8 GTexel/s
GeForce GTX 560 Ti
60.8 GTexel/s
GeForce GT 630
12.96 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6390
352 GFLOPS
GeForce GTX 560 Ti
1,459.2 GFLOPS
GeForce GT 630
311.04 GFLOPS

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

Radeon HD 6390
320

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

Radeon HD 6390
16

Specifications Full list of technical specs

gpu

GPU brand AMD
GPU name Redwood LE
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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