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Differences What are the advantages of each

Front view of GeForce GTX 550 Ti

Reasons to consider the
Nvidia GeForce GTX 550 Ti

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Much higher effective memory clock speed 4,104 MHz vs 800 MHz Around 5.2x higher effective memory clock speed
Significantly higher clock speed 900 MHz vs 540 MHz More than 65% higher clock speed
Significantly higher memory bandwidth 98.5 GB/s vs 6.4 GB/s Around 15.5x higher memory bandwidth
Better PassMark score 1,926 vs 100 More than 19.2x better PassMark score
Slightly more memory 1,024 MB vs 256 MB 4x more memory
More render output processors 24 vs 4 20 more render output processors
Better floating-point performance 691.2 GFLOPS vs 20.8 GFLOPS Around 33.2x better floating-point performance
Much higher memory clock speed 1,026 MHz vs 400 MHz More than 2.5x higher memory clock speed
Higher texture rate 28.8 GTexel/s vs 4.32 GTexel/s Around 6.8x higher texture rate
Wider memory bus 192 bit vs 64 bit 3x wider memory bus
More texture mapping units 32 vs 8 24 more texture mapping units
Slightly more shading units 192 vs 8 184 more shading units
Front view of GeForce G100

Reasons to consider the
Nvidia GeForce G100

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Significantly lower TDP 35W vs 116W 3.3x lower TDP

Benchmarks Real world tests of GeForce GTX 550 Ti vs G100

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Features Key features of the GeForce GTX 550 Ti  vs G100 

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

GeForce GTX 550 Ti
98.5 GB/s
GeForce G100
6.4 GB/s

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

GeForce GTX 550 Ti
7.2 GPixel/s
GeForce G100
2.16 GPixel/s

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

GeForce GTX 550 Ti
28.8 GTexel/s
GeForce G100
4.32 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 550 Ti
691.2 GFLOPS
GeForce G100
20.8 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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