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Differences What are the advantages of each

Front view of Radeon R9 290

Reasons to consider the
AMD Radeon R9 290

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Much higher memory bandwidth 320 GB/s vs 32 GB/s 10x higher memory bandwidth
Significantly higher clock speed 947 MHz vs 575 MHz Around 65% higher clock speed
Significantly higher effective memory clock speed 5,000 MHz vs 2,000 MHz 2.5x higher effective memory clock speed
Significantly better floating-point performance 4,800 GFLOPS vs 800 GFLOPS 6x better floating-point performance
Significantly higher pixel rate 60.6 GPixel/s vs 10 GPixel/s More than 6x higher pixel rate
Significantly higher texture rate 152 GTexel/s vs 25 GTexel/s More than 6x higher texture rate
Many more render output processors 64 vs 16 48 more render output processors
More memory 4,096 MB vs 2,048 MB 2x more memory
Significantly more shading units 2,560 vs 640 1920 more shading units
Significantly more texture mapping units 160 vs 40 120 more texture mapping units
Significantly more compute units 40 vs 10 30 more compute units
Higher turbo clock speed 947 MHz vs 625 MHz More than 50% higher turbo clock speed
Wider memory bus 512 bit vs 128 bit 4x wider memory bus
Higher memory clock speed 1,125 MHz vs 1,000 MHz Around 15% higher memory clock speed
Front view of Radeon HD 8830M

Reasons to consider the
AMD Radeon HD 8830M

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GPUBoss is not aware of any important advantages of the Radeon HD 8830M vs the Radeon R9 290.

Features Key features of the Radeon R9 290  vs HD 8830M 

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

Radeon R9 290
320 GB/s
Radeon HD 8830M
32 GB/s

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

Radeon R9 290
60.6 GPixel/s
Radeon HD 8830M
10 GPixel/s

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

Radeon R9 290
152 GTexel/s
Radeon HD 8830M
25 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon R9 290
4,800 GFLOPS
Radeon HD 8830M
800 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 R9 290  vs
HD 8830M 
GPU brand AMD AMD
GPU name Hawaii Venus
Market Desktop Laptop
Clock speed 947 MHz 575 MHz
Turbo clock speed 947 MHz 625 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 2,560 640
Texture mapping units 160 40
Render output processors 64 16
Compute units 40 10
Pixel rate 60.6 GPixel/s 10 GPixel/s
Texture rate 152 GTexel/s 25 GTexel/s
Floating-point performance 4,800 GFLOPS 800 GFLOPS

memory

Radeon R9 290  vs
HD 8830M 
Memory clock speed 1,125 MHz 1,000 MHz
Effective memory clock speed 5,000 MHz 2,000 MHz
Memory bus 512 bit 128 bit
Memory 4,096 MB 2,048 MB
Memory type GDDR5 DDR3
Memory bandwidth 320 GB/s 32 GB/s

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