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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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Slightly more memory 2,048 MB vs 1,024 MB 2x more memory
Slightly more shading units 640 vs 336 304 more shading units
Slightly higher memory clock speed 1,000 MHz vs 900 MHz More than 10% higher memory clock speed
Front view of GeForce GTX 460

Reasons to consider the
Nvidia GeForce GTX 460

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Higher memory bandwidth 115.2 GB/s vs 32 GB/s More than 3.5x higher memory bandwidth
Higher effective memory clock speed 3,600 MHz vs 2,000 MHz 80% higher effective memory clock speed
Higher clock speed 675 MHz vs 575 MHz More than 15% higher clock speed
More render output processors 32 vs 16 Twice as many render output processors

Features Key features of the Radeon HD 8830M  vs GeForce GTX 460 

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

Radeon HD 8830M
32 GB/s
GeForce GTX 460
115.2 GB/s

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

Radeon HD 8830M
10 GPixel/s
GeForce GTX 460
9.45 GPixel/s

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

Radeon HD 8830M
25 GTexel/s
GeForce GTX 460
37.8 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon HD 8830M
800 GFLOPS
GeForce GTX 460
907.2 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 8830M  vs
GeForce GTX 460 
GPU brand AMD Nvidia
GPU name Venus GF104
Market Laptop Desktop
Clock speed 575 MHz 675 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 640 336
Texture mapping units 40 56
Render output processors 16 32
Pixel rate 10 GPixel/s 9.45 GPixel/s
Texture rate 25 GTexel/s 37.8 GTexel/s
Floating-point performance 800 GFLOPS 907.2 GFLOPS

memory

Radeon HD 8830M  vs
GeForce GTX 460 
Memory clock speed 1,000 MHz 900 MHz
Effective memory clock speed 2,000 MHz 3,600 MHz
Memory bus 128 bit 256 bit
Memory 2,048 MB 1,024 MB
Memory type DDR3 GDDR5
Memory bandwidth 32 GB/s 115.2 GB/s

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