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Differences What are the advantages of each

Front view of GeForce GTX 860M

Reasons to consider the
Nvidia GeForce GTX 860M

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Much higher clock speed 1,020 MHz vs 550 MHz More than 85% higher clock speed
Higher effective memory clock speed 5,012 MHz vs 3,600 MHz Around 40% higher effective memory clock speed
Better floating-point performance 1,305.6 GFLOPS vs 264 GFLOPS Around 5x better floating-point performance
More memory 2,048 MB vs 1,024 MB 2x more memory
Higher pixel rate 16.32 GPixel/s vs 4.4 GPixel/s Around 3.8x higher pixel rate
Higher memory bandwidth 80.2 GB/s vs 57.6 GB/s Around 40% higher memory bandwidth
Higher texture rate 40.8 GTexel/s vs 17.6 GTexel/s More than 2.2x higher texture rate
More shading units 640 vs 96 544 more shading units
Significantly higher memory clock speed 1,253 MHz vs 900 MHz Around 40% higher memory clock speed
More render output processors 16 vs 8 Twice as many render output processors
Front view of GeForce GTS 260M

Reasons to consider the
Nvidia GeForce GTS 260M

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Lower TDP 38W vs 75W Around 50% lower TDP

Features Key features of the GeForce GTX 860M  vs GTS 260M 

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

GeForce GTX 860M
80.2 GB/s
GeForce GTS 260M
57.6 GB/s

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

GeForce GTX 860M
16.32 GPixel/s
GeForce GTS 260M
4.4 GPixel/s

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

GeForce GTX 860M
40.8 GTexel/s
GeForce GTS 260M
17.6 GTexel/s

floating point performance How fast the gpu can crunch numbers

GeForce GTX 860M
1,305.6 GFLOPS
GeForce GTS 260M
264 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 860M  vs
GTS 260M 
GPU brand Nvidia Nvidia
GPU name GM107 GT215
Market Laptop Laptop
Clock speed 1,020 MHz 550 MHz
Is dual GPU No No
Reference card Nvidia GeForce GTX 860M 797 MHz 2 GB None

raw performance

Shading units 640 96
Texture mapping units 40 32
Render output processors 16 8
Pixel rate 16.32 GPixel/s 4.4 GPixel/s
Texture rate 40.8 GTexel/s 17.6 GTexel/s
Floating-point performance 1,305.6 GFLOPS 264 GFLOPS

memory

GeForce GTX 860M  vs
GTS 260M 
Memory clock speed 1,253 MHz 900 MHz
Effective memory clock speed 5,012 MHz 3,600 MHz
Memory bus 128 bit 128 bit
Memory 2,048 MB 1,024 MB
Memory type GDDR5 GDDR5
Memory bandwidth 80.2 GB/s 57.6 GB/s

noise and power

TDP 75W 38W

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