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Differences What are the advantages of each

Front view of GeForce GTX 950A

Reasons to consider the
Nvidia GeForce GTX 950A

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Better PassMark score 1,367 vs 810 Around 70% better PassMark score
Higher effective memory clock speed 4,000 MHz vs 2,002 MHz Around 2x higher effective memory clock speed
Higher memory bandwidth 64 GB/s vs 16.02 GB/s Around 4x higher memory bandwidth
More memory 2,048 MB vs 1,024 MB 2x more memory
Higher texture rate 36.6 GTexel/s vs 16.46 GTexel/s Around 2.2x higher texture rate
More texture mapping units 40 vs 16 24 more texture mapping units
Slightly higher pixel rate 14.62 GPixel/s vs 8.23 GPixel/s Around 80% higher pixel rate
More render output processors 16 vs 8 Twice as many render output processors
Wider memory bus 128 bit vs 64 bit 2x wider memory bus
More shading units 640 vs 384 256 more shading units
Front view of GeForce 940A

Reasons to consider the
Nvidia GeForce 940A

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Higher clock speed 1,029 MHz vs 914 MHz Around 15% higher clock speed
Higher turbo clock speed 1,124 MHz vs 993 MHz Around 15% higher turbo clock speed
Lower TDP 33W vs 75W 2.3x lower TDP

Benchmarks Real world tests of GeForce GTX 950A vs 940A

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the GeForce GTX 950A  vs 940A 

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

GeForce 940A
16.02 GB/s

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

GeForce GTX 950A
14.62 GPixel/s
GeForce 940A
8.23 GPixel/s

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

GeForce GTX 950A
36.6 GTexel/s
GeForce 940A
16.46 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 950A
1,169.9 GFLOPS
GeForce 940A
790.3 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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