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Differences What are the advantages of each

Front view of GeForce GTS 250

Reasons to consider the
ZOTAC GeForce GTS 250

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Higher texture rate 48 GTexel/s vs 13 GTexel/s Around 3.8x higher texture rate
Higher pixel rate 12 GPixel/s vs 3.24 GPixel/s Around 3.8x higher pixel rate
Significantly higher memory clock speed 1,150 MHz vs 800 MHz Around 45% higher memory clock speed
More render output processors 16 vs 4 12 more render output processors
More texture mapping units 64 vs 16 48 more texture mapping units
Wider memory bus 256 bit vs 128 bit 2x wider memory bus
Front view of GeForce GT 630

Reasons to consider the
EVGA GeForce GT 630

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Higher clock speed 810 MHz vs 750 MHz Around 10% higher clock speed
Higher effective memory clock speed 3,200 MHz vs 2,300 MHz Around 40% higher effective memory clock speed
Lower TDP 65W vs 150W 2.3x lower TDP

Features Key features of the GeForce GTS 250  vs GT 630 

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

GeForce GTS 250
73.6 GB/s
GeForce GT 630
51.2 GB/s

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

GeForce GTS 250
12 GPixel/s
GeForce GT 630
3.24 GPixel/s

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

GeForce GTS 250
48 GTexel/s
GeForce GT 630
13 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTS 250
483.8 GFLOPS
GeForce GT 630
311 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 250  vs
GT 630 
GPU brand Nvidia Nvidia
GPU name G92 B1 GF108
Market Desktop Desktop
Clock speed 750 MHz 810 MHz
Is dual GPU No No
Reference card Nvidia GeForce GTS 250 702 MHz 1 GB Nvidia GeForce GT 630 810 MHz 1 GB

raw performance

Shading units 128 96
Texture mapping units 64 16
Render output processors 16 4
Pixel rate 12 GPixel/s 3.24 GPixel/s
Texture rate 48 GTexel/s 13 GTexel/s
Floating-point performance 483.8 GFLOPS 311 GFLOPS

memory

GeForce GTS 250  vs
GT 630 
Memory clock speed 1,150 MHz 800 MHz
Effective memory clock speed 2,300 MHz 3,200 MHz
Memory bus 256 bit 128 bit
Memory 1,024 MB 1,024 MB
Memory type GDDR3 GDDR5
Memory bandwidth 73.6 GB/s 51.2 GB/s

noise and power

TDP 150W 65W

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