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Differences What are the advantages of each

Front view of GeForce GT 9800

Reasons to consider the
Nvidia GeForce GT 9800

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Higher memory bandwidth 57.6 GB/s vs 14.4 GB/s 4x higher memory bandwidth
More texture mapping units 56 vs 16 40 more texture mapping units
Significantly wider memory bus 256 bit vs 64 bit 4x wider memory bus
Higher texture rate 33.6 GTexel/s vs 14.43 GTexel/s More than 2.2x higher texture rate
More render output processors 16 vs 8 Twice as many render output processors
Front view of GeForce GT 630 PCIe x8

Reasons to consider the
Nvidia GeForce GT 630 PCIe x8

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Higher clock speed 902 MHz vs 600 MHz More than 50% higher clock speed
More memory 2,048 MB vs 512 MB 4x more memory
More shading units 384 vs 112 272 more shading units
Significantly lower TDP 25W vs 125W 5x lower TDP

Features Key features of the GeForce GT 9800  vs 630 PCIe x8 

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

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

GeForce GT 9800
9.6 GPixel/s
GeForce GT 630 PCIe x8
7.22 GPixel/s

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

GeForce GT 9800
33.6 GTexel/s
GeForce GT 630 PCIe x8
14.43 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 9800
336 GFLOPS
GeForce GT 630 PCIe x8
692.7 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 9800  vs
630 PCIe x8 
GPU brand Nvidia Nvidia
GPU name G92 GK208
Market Desktop Desktop
Clock speed 600 MHz 902 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 112 384
Texture mapping units 56 16
Render output processors 16 8
Pixel rate 9.6 GPixel/s 7.22 GPixel/s
Texture rate 33.6 GTexel/s 14.43 GTexel/s
Floating-point performance 336 GFLOPS 692.7 GFLOPS

memory

GeForce GT 9800  vs
630 PCIe x8 
Memory clock speed 900 MHz 900 MHz
Effective memory clock speed 1,800 MHz 1,800 MHz
Memory bus 256 bit 64 bit
Memory 512 MB 2,048 MB
Memory type GDDR3 DDR3
Memory bandwidth 57.6 GB/s 14.4 GB/s

noise and power

TDP 125W 25W

Comments

Showing 1 comment.
gt 630 kepler much better in reality performance, trust me.
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