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Differences What are the advantages of each

Front view of Radeon R5 A240

Reasons to consider the
AMD Radeon R5 A240

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Slightly more shading units 320 vs 96 224 more shading units
Slightly more render output processors 8 vs 4 Twice as many render output processors
Front view of GeForce GT 620M

Reasons to consider the
Nvidia GeForce GT 620M

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Slightly higher memory bandwidth 28.8 GB/s vs 14.4 GB/s 2x higher memory bandwidth

Features Key features of the Radeon R5 A240  vs GeForce GT 620M 

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

Radeon R5 A240
14.4 GB/s
GeForce GT 620M
28.8 GB/s

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

Radeon R5 A240
5.2 GPixel/s
GeForce GT 620M
2.64 GPixel/s

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

Radeon R5 A240
13 GTexel/s
GeForce GT 620M
10.56 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon R5 A240
416 GFLOPS
GeForce GT 620M
253.44 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 R5 A240  vs
GeForce GT 620M 
GPU brand AMD Nvidia
GPU name Jet GF108
Clock speed 650 MHz 660 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GT 620M 625 MHz 1 GB

raw performance

Shading units 320 96
Texture mapping units 20 16
Render output processors 8 4
Pixel rate 5.2 GPixel/s 2.64 GPixel/s
Texture rate 13 GTexel/s 10.56 GTexel/s
Floating-point performance 416 GFLOPS 253.44 GFLOPS

memory

Radeon R5 A240  vs
GeForce GT 620M 
Memory clock speed 900 MHz 900 MHz
Effective memory clock speed 1,800 MHz 1,800 MHz
Memory bus 64 bit 128 bit
Memory 1,024 MB 1,024 MB
Memory type DDR3 DDR3
Memory bandwidth 14.4 GB/s 28.8 GB/s

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