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Differences What are the advantages of each

Front view of GeForce GTX 780

Reasons to consider the
Nvidia GeForce GTX 780

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Much higher memory bandwidth 288.4 GB/s vs 86.4 GB/s More than 3.2x higher memory bandwidth
Significantly better floating-point performance 3,977 GFLOPS vs 1,545.2 GFLOPS More than 2.5x better floating-point performance
Significantly higher texture rate 165.7 GTexel/s vs 64.4 GTexel/s More than 2.5x higher texture rate
More memory 3,072 MB vs 1,024 MB 3x more memory
Many more texture mapping units 192 vs 64 Three times as many texture mapping units
Many more shading units 2,304 vs 768 Three times as many shading units
Higher pixel rate 41.4 GPixel/s vs 16.1 GPixel/s More than 2.5x higher pixel rate
Significantly more render output processors 48 vs 16 Three times as many render output processors
Higher effective memory clock speed 6,008 MHz vs 5,400 MHz More than 10% higher effective memory clock speed
Much wider memory bus 384 bit vs 128 bit 3x wider memory bus
Higher memory clock speed 1,502 MHz vs 1,350 MHz More than 10% higher memory clock speed
Front view of GeForce GTX 650 Ti

Reasons to consider the
Axigon GeForce GTX 650 Ti

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Higher clock speed 1,006 MHz vs 863 MHz More than 15% higher clock speed
Much lower TDP 110W vs 250W 2.3x lower TDP

Features Key features of the GeForce GTX 780  vs 650 Ti 

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

GeForce GTX 780
288.4 GB/s
GeForce GTX 650 Ti
86.4 GB/s

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

GeForce GTX 780
41.4 GPixel/s
GeForce GTX 650 Ti
16.1 GPixel/s

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

GeForce GTX 780
165.7 GTexel/s
GeForce GTX 650 Ti
64.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 780
3,977 GFLOPS
GeForce GTX 650 Ti
1,545.2 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

Reviews Word on the street

Specifications Full list of technical specs

gpu

GeForce GTX 780  vs
650 Ti 
GPU brand Nvidia Nvidia
GPU name GK110 GK106
Market Desktop Desktop
Clock speed 863 MHz 1,006 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GTX 650 Ti 928 MHz 1 GB

raw performance

Shading units 2,304 768
Texture mapping units 192 64
Render output processors 48 16
SMX units 13 4
Pixel rate 41.4 GPixel/s 16.1 GPixel/s
Texture rate 165.7 GTexel/s 64.4 GTexel/s
Floating-point performance 3,977 GFLOPS 1,545.2 GFLOPS

memory

GeForce GTX 780  vs
650 Ti 
Memory clock speed 1,502 MHz 1,350 MHz
Effective memory clock speed 6,008 MHz 5,400 MHz
Memory bus 384 bit 128 bit
Memory 3,072 MB 1,024 MB
Memory type GDDR5 GDDR5
Memory bandwidth 288.4 GB/s 86.4 GB/s

noise and power

TDP 250W 110W

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