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Differences What are the advantages of each

Front view of GeForce 820M

Reasons to consider the
Nvidia GeForce 820M

Report a correction

GPUBoss is not aware of any important advantages of the 820M vs the 620M.

Front view of GeForce 620M

Reasons to consider the
Nvidia GeForce 620M

Report a correction

GPUBoss is not aware of any important advantages of the 620M vs the 820M.

Features Key features of the GeForce 820M  vs 620M 

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

GeForce 820M
14.4 GB/s
GeForce 620M
14.4 GB/s

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

GeForce 820M
2.5 GPixel/s
GeForce 620M
2.5 GPixel/s

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

GeForce 820M
10 GTexel/s
GeForce 620M
10 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce 820M
240 GFLOPS
GeForce 620M
240 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 820M  vs
620M 
GPU brand Nvidia Nvidia
GPU name GF117 GF117
Market Laptop Laptop
Clock speed 625 MHz 625 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 96 96
Texture mapping units 16 16
Render output processors 8 8
Pixel rate 2.5 GPixel/s 2.5 GPixel/s
Texture rate 10 GTexel/s 10 GTexel/s
Floating-point performance 240 GFLOPS 240 GFLOPS

memory

GeForce 820M  vs
620M 
Memory clock speed 900 MHz 900 MHz
Effective memory clock speed 1,800 MHz 1,800 MHz
Memory bus 64 bit 64 bit
Memory 1,024 MB 1,024 MB
Memory type DDR3 DDR3
Memory bandwidth 14.4 GB/s 14.4 GB/s

noise and power

TDP 15W 15W

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