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Differences What are the advantages of each

Front view of GeForce GT 520

Reasons to consider the
Nvidia GeForce GT 520

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Much higher clock speed 810 MHz vs 506 MHz More than 60% higher clock speed
More memory 2,048 MB vs 512 MB 4x more memory
Higher memory clock speed 898 MHz vs 700 MHz Around 30% higher memory clock speed
Lower TDP 29W vs 58W 2x lower TDP
Front view of GeForce GT 220

Reasons to consider the
Nvidia GeForce GT 220

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Slightly more render output processors 8 vs 2 6 more render output processors

Features Key features of the GeForce GT 520  vs 220 

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

GeForce GT 520
14.4 GB/s
GeForce GT 220
22.4 GB/s

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

GeForce GT 520
1.62 GPixel/s
GeForce GT 220
4.05 GPixel/s

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

GeForce GT 520
6.48 GTexel/s
GeForce GT 220
8.1 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 520
155.5 GFLOPS
GeForce GT 220
97.15 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 GT 520  vs
220 
GPU brand Nvidia Nvidia
GPU name GF108 GT215
Market Desktop Desktop
Clock speed 810 MHz 506 MHz
Is dual GPU No No
Reference card Nvidia GeForce GT 520 OEM 700 MHz 1 GB None

raw performance

Shading units 48 48
Texture mapping units 8 16
Render output processors 2 8
Pixel rate 1.62 GPixel/s 4.05 GPixel/s
Texture rate 6.48 GTexel/s 8.1 GTexel/s
Floating-point performance 155.5 GFLOPS 97.15 GFLOPS

memory

GeForce GT 520  vs
220 
Memory clock speed 898 MHz 700 MHz
Effective memory clock speed 1,796 MHz 1,400 MHz
Memory bus 64 bit 128 bit
Memory 2,048 MB 512 MB
Memory type DDR3 GDDR3
Memory bandwidth 14.4 GB/s 22.4 GB/s

noise and power

TDP 29W 58W

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