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Differences What are the advantages of each

Front view of GeForce GTX 460

Reasons to consider the
Nvidia GeForce GTX 460

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Higher effective memory clock speed 3,400 MHz vs 1,796 MHz Around 90% higher effective memory clock speed
Higher memory bandwidth 108.8 GB/s vs 14.4 GB/s More than 7.5x higher memory bandwidth
Significantly more render output processors 32 vs 4 28 more render output processors
More memory 1,024 MB vs 512 MB 2x more memory
Better floating-point performance 873.6 GFLOPS vs 155.5 GFLOPS More than 5.5x better floating-point performance
Higher texture rate 36.4 GTexel/s vs 6.48 GTexel/s More than 5.5x higher texture rate
Higher pixel rate 9.1 GPixel/s vs 1.62 GPixel/s More than 5.5x higher pixel rate
More texture mapping units 56 vs 8 48 more texture mapping units
Wider memory bus 256 bit vs 64 bit 4x wider memory bus
Slightly more shading units 336 vs 48 288 more shading units
Front view of GeForce GT 620

Reasons to consider the
Nvidia GeForce GT 620

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Significantly higher clock speed 810 MHz vs 650 MHz Around 25% higher clock speed
Significantly lower TDP 30W vs 150W 5x lower TDP

Features Key features of the GeForce GTX 460  vs GT 620 

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

GeForce GTX 460
108.8 GB/s
GeForce GT 620
14.4 GB/s

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

GeForce GTX 460
9.1 GPixel/s
GeForce GT 620
1.62 GPixel/s

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

GeForce GTX 460
36.4 GTexel/s
GeForce GT 620
6.48 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 460
873.6 GFLOPS
GeForce GT 620
155.5 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 GTX 460  vs
GT 620 
GPU brand Nvidia Nvidia
GPU name GF104 GF119
Market Desktop Desktop
Clock speed 650 MHz 810 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 336 48
Texture mapping units 56 8
Render output processors 32 4
Pixel rate 9.1 GPixel/s 1.62 GPixel/s
Texture rate 36.4 GTexel/s 6.48 GTexel/s
Floating-point performance 873.6 GFLOPS 155.5 GFLOPS

memory

GeForce GTX 460  vs
GT 620 
Memory clock speed 850 MHz 898 MHz
Effective memory clock speed 3,400 MHz 1,796 MHz
Memory bus 256 bit 64 bit
Memory 1,024 MB 512 MB
Memory type GDDR5 DDR3
Memory bandwidth 108.8 GB/s 14.4 GB/s

noise and power

TDP 150W 30W

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