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Differences What are the advantages of each

Front view of Radeon HD 6390

Reasons to consider the
AMD Radeon HD 6390

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Significantly lower TDP 39W vs 150W 3.8x lower TDP
Front view of GeForce GTX 560 SE

Reasons to consider the
ZOTAC GeForce GTX 560 SE

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Much higher effective memory clock speed 3,828 MHz vs 1,000 MHz More than 3.8x higher effective memory clock speed
Significantly higher memory bandwidth 91.9 GB/s vs 16 GB/s Around 5.8x higher memory bandwidth
Higher clock speed 746 MHz vs 550 MHz More than 35% higher clock speed
Higher texture rate 35.8 GTexel/s vs 8.8 GTexel/s More than 4x higher texture rate
More render output processors 24 vs 8 Three times as many render output processors
Slightly better floating-point performance 859.4 GFLOPS vs 352 GFLOPS Around 2.5x better floating-point performance
Significantly higher memory clock speed 957 MHz vs 500 MHz More than 90% higher memory clock speed
More texture mapping units 48 vs 16 Three times as many texture mapping units
Wider memory bus 192 bit vs 128 bit 50% wider memory bus

Features Key features of the Radeon HD 6390  vs GeForce GTX 560 SE 

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

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 SE
8.95 GPixel/s

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

Radeon HD 6390
8.8 GTexel/s
GeForce GTX 560 SE
35.8 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6390
352 GFLOPS
GeForce GTX 560 SE
859.4 GFLOPS

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

gpu

Radeon HD 6390  vs
GeForce GTX 560 SE 
GPU brand AMD Nvidia
GPU name Redwood LE GF114
Market Desktop Desktop
Clock speed 550 MHz 746 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GTX 560 SE 736 MHz 1 GB

raw performance

Shading units 320 288
Texture mapping units 16 48
Render output processors 8 24
Pixel rate 4.4 GPixel/s 8.95 GPixel/s
Texture rate 8.8 GTexel/s 35.8 GTexel/s
Floating-point performance 352 GFLOPS 859.4 GFLOPS

memory

Radeon HD 6390  vs
GeForce GTX 560 SE 
Memory clock speed 500 MHz 957 MHz
Effective memory clock speed 1,000 MHz 3,828 MHz
Memory bus 128 bit 192 bit
Memory 1,024 MB 1,024 MB
Memory type DDR2 GDDR5
Memory bandwidth 16 GB/s 91.9 GB/s

noise and power

TDP 39W 150W

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