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Differences What are the advantages of each

Front view of Radeon HD 6490

Reasons to consider the
AMD Radeon HD 6490

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Lower TDP 39W vs 75W Around 50% lower TDP
Front view of GeForce GTX 960M

Reasons to consider the
Nvidia GeForce GTX 960M

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Much higher clock speed 1,097 MHz vs 550 MHz Around 2x higher clock speed
Significantly higher effective memory clock speed 5,012 MHz vs 1,000 MHz More than 5x higher effective memory clock speed
Higher memory bandwidth 80.2 GB/s vs 16 GB/s More than 5x higher memory bandwidth
Better floating-point performance 1,404.2 GFLOPS vs 352 GFLOPS Around 4x better floating-point performance
Slightly more memory 2,048 MB vs 1,024 MB 2x more memory
Significantly higher memory clock speed 1,253 MHz vs 500 MHz More than 2.5x higher memory clock speed
Higher pixel rate 17.55 GPixel/s vs 4.4 GPixel/s Around 4x higher pixel rate
Higher texture rate 43.9 GTexel/s vs 8.8 GTexel/s Around 5x higher texture rate
More texture mapping units 40 vs 16 24 more texture mapping units
More render output processors 16 vs 8 Twice as many render output processors
More shading units 640 vs 320 Twice as many shading units

Features Key features of the Radeon HD 6490  vs GeForce GTX 960M 

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

Radeon HD 6490
16 GB/s
GeForce GTX 960M
80.2 GB/s

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

Radeon HD 6490
4.4 GPixel/s
GeForce GTX 960M
17.55 GPixel/s

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

Radeon HD 6490
8.8 GTexel/s
GeForce GTX 960M
43.9 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 6490
352 GFLOPS
GeForce GTX 960M
1,404.2 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

Radeon HD 6490  vs
GeForce GTX 960M 
GPU brand AMD Nvidia
GPU name Redwood GM107
Market Desktop Laptop
Clock speed 550 MHz 1,097 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 320 640
Texture mapping units 16 40
Render output processors 8 16
Pixel rate 4.4 GPixel/s 17.55 GPixel/s
Texture rate 8.8 GTexel/s 43.9 GTexel/s
Floating-point performance 352 GFLOPS 1,404.2 GFLOPS

memory

Radeon HD 6490  vs
GeForce GTX 960M 
Memory clock speed 500 MHz 1,253 MHz
Effective memory clock speed 1,000 MHz 5,012 MHz
Memory bus 128 bit 128 bit
Memory 1,024 MB 2,048 MB
Memory type DDR2 GDDR5
Memory bandwidth 16 GB/s 80.2 GB/s

noise and power

TDP 39W 75W

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