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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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Significantly better PassMark score 7,995 vs 1,239 Around 6.5x better PassMark score
Much higher memory bandwidth 288.4 GB/s vs 14.4 GB/s More than 20x higher memory bandwidth
Significantly higher effective memory clock speed 6,008 MHz vs 1,800 MHz More than 3.2x higher effective memory clock speed
Significantly better floating-point performance 3,977 GFLOPS vs 712.7 GFLOPS More than 5.5x better floating-point performance
Significantly higher texture rate 165.7 GTexel/s vs 22.27 GTexel/s Around 7.5x higher texture rate
Many more texture mapping units 192 vs 24 168 more texture mapping units
Higher pixel rate 41.4 GPixel/s vs 7.42 GPixel/s More than 5.5x higher pixel rate
Significantly more shading units 2,304 vs 384 1920 more shading units
Significantly more render output processors 48 vs 8 40 more render output processors
More memory 3,072 MB vs 2,048 MB 50% more memory
Significantly higher memory clock speed 1,502 MHz vs 900 MHz More than 65% higher memory clock speed
Wider memory bus 384 bit vs 64 bit 6x wider memory bus
Front view of GeForce 930A

Reasons to consider the
Nvidia GeForce 930A

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Much lower TDP 33W vs 250W 7.6x lower TDP

Benchmarks Real world tests of GeForce GTX 780 vs 930A

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the GeForce GTX 780  vs 930A 

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

GeForce GTX 780
288.4 GB/s
GeForce 930A
14.4 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 930A
7.42 GPixel/s

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

GeForce GTX 780
165.7 GTexel/s
GeForce 930A
22.27 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 780
3,977 GFLOPS
GeForce 930A
712.7 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

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