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Differences What are the advantages of each

Front view of Radeon HD 8510

Reasons to consider the
AMD Radeon HD 8510

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Slightly wider memory bus 128 bit vs 64 bit 2x wider memory bus
Front view of GeForce 840M

Reasons to consider the
Nvidia GeForce 840M

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Significantly higher clock speed 1,029 MHz vs 650 MHz Around 60% higher clock speed
Higher effective memory clock speed 2,002 MHz vs 1,000 MHz More than 2x higher effective memory clock speed
Significantly higher memory clock speed 1,001 MHz vs 500 MHz More than 2x higher memory clock speed

Features Key features of the Radeon HD 8510  vs GeForce 840M 

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

Radeon HD 8510
16 GB/s
GeForce 840M
16.02 GB/s

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

Radeon HD 8510
5.2 GPixel/s
GeForce 840M
8.23 GPixel/s

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

Radeon HD 8510
13 GTexel/s
GeForce 840M
16.46 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8510
GeForce 840M
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

Specifications Full list of technical specs


Radeon HD 8510  vs
GeForce 840M 
GPU brand AMD Nvidia
GPU name Redwood GM108
Market Desktop Laptop
Clock speed 650 MHz 1,029 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 400 384
Texture mapping units 20 16
Render output processors 8 8
Pixel rate 5.2 GPixel/s 8.23 GPixel/s
Texture rate 13 GTexel/s 16.46 GTexel/s
Floating-point performance 520 GFLOPS 790.3 GFLOPS


Radeon HD 8510  vs
GeForce 840M 
Memory clock speed 500 MHz 1,001 MHz
Effective memory clock speed 1,000 MHz 2,002 MHz
Memory bus 128 bit 64 bit
Memory 1,024 MB 1,024 MB
Memory type GDDR3 DDR3
Memory bandwidth 16 GB/s 16.02 GB/s

noise and power

TDP 39W 33W

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