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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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Wider memory bus 128 bit vs 64 bit 2x wider memory bus
Front view of GeForce GT 730

Reasons to consider the
Nvidia GeForce GT 730

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Much higher effective memory clock speed 5,012 MHz vs 1,000 MHz More than 5x higher effective memory clock speed
Significantly higher clock speed 902 MHz vs 550 MHz Around 65% higher clock speed
Much higher memory clock speed 1,253 MHz vs 500 MHz More than 2.5x higher memory clock speed
Higher memory bandwidth 40.1 GB/s vs 16 GB/s More than 2.5x higher memory bandwidth

Features Key features of the Radeon HD 6390  vs GeForce GT 730 

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

Radeon HD 6390
16 GB/s
GeForce GT 730
40.1 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 GT 730
7.22 GPixel/s

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

Radeon HD 6390
8.8 GTexel/s
GeForce GT 730
14.43 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6390
352 GFLOPS
GeForce GT 730
692.7 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 GT 730 
GPU brand AMD Nvidia
GPU name Redwood LE GK117
Market Desktop Desktop
Clock speed 550 MHz 902 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GT 730 700 MHz 1 GB

raw performance

Shading units 320 384
Texture mapping units 16 16
Render output processors 8 8
Pixel rate 4.4 GPixel/s 7.22 GPixel/s
Texture rate 8.8 GTexel/s 14.43 GTexel/s
Floating-point performance 352 GFLOPS 692.7 GFLOPS

memory

Radeon HD 6390  vs
GeForce GT 730 
Memory clock speed 500 MHz 1,253 MHz
Effective memory clock speed 1,000 MHz 5,012 MHz
Memory bus 128 bit 64 bit
Memory 1,024 MB 1,024 MB
Memory type DDR2 GDDR5
Memory bandwidth 16 GB/s 40.1 GB/s

noise and power

TDP 39W 38W

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