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Differences What are the advantages of each

Front view of GeForce 405M

Reasons to consider the
Nvidia GeForce 405M

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Higher memory clock speed 800 MHz vs 667 MHz Around 20% higher memory clock speed
Front view of GeForce 310M

Reasons to consider the
Nvidia GeForce 310M

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Slightly more memory 1,024 MB vs 512 MB 2x more memory
Slightly higher pixel rate 6.12 GPixel/s vs 2.42 GPixel/s More than 2.5x higher pixel rate
Slightly higher texture rate 12.24 GTexel/s vs 4.85 GTexel/s More than 2.5x higher texture rate

Features Key features of the GeForce 405M  vs 310M 

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

GeForce 405M
12.8 GB/s
GeForce 310M
10.67 GB/s

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

GeForce 405M
2.42 GPixel/s
GeForce 310M
6.12 GPixel/s

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

GeForce 405M
4.85 GTexel/s
GeForce 310M
12.24 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce 405M
38.78 GFLOPS
GeForce 310M
48.96 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

GeForce 405M  vs
310M 
GPU brand Nvidia Nvidia
GPU name GT218 GT218
Market Laptop Laptop
Clock speed 606 MHz 606 MHz
Is dual GPU No No
Reference card None Nvidia GeForce 310M 625 MHz 512 MB

raw performance

Shading units 16 16
Texture mapping units 8 8
Render output processors 4 4
Pixel rate 2.42 GPixel/s 6.12 GPixel/s
Texture rate 4.85 GTexel/s 12.24 GTexel/s
Floating-point performance 38.78 GFLOPS 48.96 GFLOPS

memory

GeForce 405M  vs
310M 
Memory clock speed 800 MHz 667 MHz
Effective memory clock speed 1,600 MHz 1,334 MHz
Memory bus 64 bit 64 bit
Memory 512 MB 1,024 MB
Memory type GDDR3 DDR3
Memory bandwidth 12.8 GB/s 10.67 GB/s

noise and power

TDP 14W 14W

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