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Differences What are the advantages of each

Front view of GeForce GTX 950 LP

Reasons to consider the
ASUS GeForce GTX 950 LP

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Higher clock speed 1,026 MHz vs 823 MHz Around 25% higher clock speed
Higher effective memory clock speed 6,612 MHz vs 5,600 MHz Around 20% higher effective memory clock speed
Higher turbo clock speed 1,190 MHz vs 888 MHz Around 35% higher turbo clock speed
Higher pixel rate 32.8 GPixel/s vs 19.75 GPixel/s More than 65% higher pixel rate
Higher memory clock speed 1,653 MHz vs 1,400 MHz Around 20% higher memory clock speed
Lower TDP 75W vs 130W More than 40% lower TDP
Front view of GeForce GTX 660

Reasons to consider the
Nvidia GeForce GTX 660

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Higher memory bandwidth 179.2 GB/s vs 105.8 GB/s Around 70% higher memory bandwidth
More texture mapping units 96 vs 48 Twice as many texture mapping units
Higher texture rate 79 GTexel/s vs 49.2 GTexel/s More than 60% higher texture rate
More shading units 1,152 vs 768 384 more shading units

Features Key features of the GeForce GTX 950 LP  vs 660 

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

GeForce GTX 950 LP
105.8 GB/s
GeForce GTX 660
179.2 GB/s

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

GeForce GTX 950 LP
32.8 GPixel/s
GeForce GTX 660
19.75 GPixel/s

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

GeForce GTX 950 LP
49.2 GTexel/s
GeForce GTX 660
79 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 950 LP
1,575.9 GFLOPS
GeForce GTX 660
1,896.2 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

Specifications Full list of technical specs

gpu

GeForce GTX 950 LP  vs
660 
GPU brand Nvidia Nvidia
GPU name GM206 GK104
Market Desktop Desktop
Clock speed 1,026 MHz 823 MHz
Turbo clock speed 1,190 MHz 888 MHz
Is dual GPU No No
Reference card Nvidia GeForce GTX 950 LP 1 GHz 2 GB Nvidia GeForce GTX 660 980 MHz 2 GB

raw performance

Shading units 768 1,152
Texture mapping units 48 96
Render output processors 32 32
Pixel rate 32.8 GPixel/s 19.75 GPixel/s
Texture rate 49.2 GTexel/s 79 GTexel/s
Floating-point performance 1,575.9 GFLOPS 1,896.2 GFLOPS

memory

GeForce GTX 950 LP  vs
660 
Memory clock speed 1,653 MHz 1,400 MHz
Effective memory clock speed 6,612 MHz 5,600 MHz
Memory bus 128 bit 256 bit
Memory 2,048 MB 2,048 MB
Memory type GDDR5 GDDR5
Memory bandwidth 105.8 GB/s 179.2 GB/s

noise and power

TDP 75W 130W

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