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Differences What are the advantages of each

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 810 MHz More than 10% higher clock speed
Slightly better floating-point performance 692.7 GFLOPS vs 155.52 GFLOPS Around 4.5x better floating-point performance
More shading units 384 vs 48 336 more shading units
More render output processors 8 vs 2 6 more render output processors
Front view of GeForce GT 520

Reasons to consider the
Nvidia GeForce GT 520

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GPUBoss is not aware of any important advantages of the 520 OEM 2 GB vs the 630 PCIe x8 GeForce GT 630 Rev. 2 PCIe x8.

Features Key features of the GeForce GT 630 PCIe x8  vs 520 

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

GeForce GT 520
14.37 GB/s

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

GeForce GT 630 PCIe x8
7.22 GPixel/s
GeForce GT 520
1.62 GPixel/s

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

GeForce GT 630 PCIe x8
14.43 GTexel/s
GeForce GT 520
6.48 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GT 630 PCIe x8
692.7 GFLOPS
GeForce GT 520
155.52 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


GeForce GT 630 PCIe x8  vs
GPU brand Nvidia Nvidia
GPU name GK208 GF108
Market Desktop Desktop
Clock speed 902 MHz 810 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GT 520 810 MHz 1 GB

raw performance

Shading units 384 48
Texture mapping units 16 8
Render output processors 8 2
Pixel rate 7.22 GPixel/s 1.62 GPixel/s
Texture rate 14.43 GTexel/s 6.48 GTexel/s
Floating-point performance 692.7 GFLOPS 155.52 GFLOPS


GeForce GT 630 PCIe x8  vs
Memory clock speed 900 MHz 898 MHz
Effective memory clock speed 1,800 MHz 1,796 MHz
Memory bus 64 bit 64 bit
Memory 2,048 MB 2,048 MB
Memory type DDR3 DDR3
Memory bandwidth 14.4 GB/s 14.37 GB/s

noise and power

TDP 25W 29W


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