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Differences What are the advantages of each

Front view of Radeon HD 8530M

Reasons to consider the
AMD Radeon HD 8530M

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Slightly more texture mapping units 24 vs 16 8 more texture mapping units
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
Significantly higher turbo clock speed 1,124 MHz vs 700 MHz More than 60% higher turbo clock speed
Higher memory clock speed 1,001 MHz vs 900 MHz More than 10% higher memory clock speed

Features Key features of the Radeon HD 8530M  vs GeForce 840M 

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

Radeon HD 8530M
14.4 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 8530M
5.6 GPixel/s
GeForce 840M
8.23 GPixel/s

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

Radeon HD 8530M
16.8 GTexel/s
GeForce 840M
16.46 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8530M
537.6 GFLOPS
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 8530M  vs
GeForce 840M 
GPU brand AMD Nvidia
GPU name Mars GM108
Market Laptop Laptop
Clock speed 650 MHz 1,029 MHz
Turbo clock speed 700 MHz 1,124 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 384 384
Texture mapping units 24 16
Render output processors 8 8
Pixel rate 5.6 GPixel/s 8.23 GPixel/s
Texture rate 16.8 GTexel/s 16.46 GTexel/s
Floating-point performance 537.6 GFLOPS 790.3 GFLOPS


Radeon HD 8530M  vs
GeForce 840M 
Memory clock speed 900 MHz 1,001 MHz
Effective memory clock speed 1,800 MHz 2,002 MHz
Memory bus 64 bit 64 bit
Memory 1,024 MB 1,024 MB
Memory type DDR3 DDR3
Memory bandwidth 14.4 GB/s 16.02 GB/s

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