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Differences What are the advantages of each

Front view of Radeon HD 8830M

Reasons to consider the
AMD Radeon HD 8830M

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More shading units 640 vs 384 256 more shading units
Higher memory clock speed 1,000 MHz vs 901 MHz More than 10% higher memory clock speed
Front view of GeForce GT 740M

Reasons to consider the
Nvidia GeForce GT 740M

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Higher clock speed 810 MHz vs 575 MHz More than 40% higher clock speed

Features Key features of the Radeon HD 8830M  vs GeForce GT 740M 

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

Radeon HD 8830M
32 GB/s
GeForce GT 740M
28.83 GB/s

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

Radeon HD 8830M
10 GPixel/s
GeForce GT 740M
6.48 GPixel/s

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

Radeon HD 8830M
25 GTexel/s
GeForce GT 740M
25.92 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8830M
800 GFLOPS
GeForce GT 740M
622.1 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 8830M  vs
GeForce GT 740M 
GPU brand AMD Nvidia
GPU name Venus GK107
Market Laptop Laptop
Clock speed 575 MHz 810 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 640 384
Texture mapping units 40 32
Render output processors 16 16
Pixel rate 10 GPixel/s 6.48 GPixel/s
Texture rate 25 GTexel/s 25.92 GTexel/s
Floating-point performance 800 GFLOPS 622.1 GFLOPS

memory

Radeon HD 8830M  vs
GeForce GT 740M 
Memory clock speed 1,000 MHz 901 MHz
Effective memory clock speed 2,000 MHz 1,802 MHz
Memory bus 128 bit 128 bit
Memory 2,048 MB 2,048 MB
Memory type DDR3 DDR3
Memory bandwidth 32 GB/s 28.83 GB/s

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