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Differences What are the advantages of each

Front view of GeForce GTS 450

Reasons to consider the
Nvidia GeForce GTS 450

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Higher clock speed 783 MHz vs 500 MHz More than 55% higher clock speed
More render output processors 16 vs 8 Twice as many render output processors
Front view of GeForce GT 320M

Reasons to consider the
Nvidia GeForce GT 320M

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Lower TDP 23W vs 106W 4.6x lower TDP

Features Key features of the GeForce GTS 450  vs GT 320M 

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

GeForce GTS 450
22.4 GB/s
GeForce GT 320M
25.28 GB/s

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

GeForce GTS 450
4.7 GPixel/s
GeForce GT 320M
4 GPixel/s

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

GeForce GTS 450
18.79 GTexel/s
GeForce GT 320M
4 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTS 450
451 GFLOPS
GeForce GT 320M
52.8 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 GTS 450  vs
GT 320M 
GPU brand Nvidia Nvidia
GPU name GF116 GT216
Market Desktop Laptop
Clock speed 783 MHz 500 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GT 320M 500 MHz 512 MB

raw performance

Shading units 144 24
Texture mapping units 24 8
Render output processors 16 8
Pixel rate 4.7 GPixel/s 4 GPixel/s
Texture rate 18.79 GTexel/s 4 GTexel/s
Floating-point performance 451 GFLOPS 52.8 GFLOPS

memory

GeForce GTS 450  vs
GT 320M 
Memory clock speed 700 MHz 790 MHz
Effective memory clock speed 1,400 MHz 1,580 MHz
Memory bus 128 bit 128 bit
Memory 1,024 MB 1,024 MB
Memory type DDR3 DDR3
Memory bandwidth 22.4 GB/s 25.28 GB/s

noise and power

TDP 106W 23W

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