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Differences What are the advantages of each

Front view of Radeon R9 290X

Reasons to consider the
AMD Radeon R9 290X

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Much higher memory bandwidth 320 GB/s vs 35.2 GB/s More than 9x higher memory bandwidth
Much higher clock speed 1,000 MHz vs 450 MHz Around 2.2x higher clock speed
Much higher effective memory clock speed 5,000 MHz vs 1,100 MHz More than 4.5x higher effective memory clock speed
Much higher texture rate 176 GTexel/s vs 7.2 GTexel/s Around 24.5x higher texture rate
Significantly more memory 4,096 MB vs 256 MB 16x more memory
Much higher pixel rate 64 GPixel/s vs 7.2 GPixel/s Around 9x higher pixel rate
Many more texture mapping units 176 vs 16 160 more texture mapping units
Many more render output processors 64 vs 16 48 more render output processors
Much higher memory clock speed 1,250 MHz vs 550 MHz More than 2.2x higher memory clock speed
Much wider memory bus 512 bit vs 256 bit 2x wider memory bus
Front view of GeForce 6800 Ultra Extreme

Reasons to consider the
Nvidia GeForce 6800 Ultra Extreme

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GPUBoss is not aware of any important advantages of the Nvidia GeForce 6800 Ultra Extreme vs the AMD Radeon R9 290X.

Features Key features of the Radeon R9 290X  vs GeForce 6800 Ultra Extreme 

effective memory clock speed Frequency at which memory can be read from and written to

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

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

Radeon R9 290X
64 GPixel/s

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

Radeon R9 290X
176 GTexel/s

texture mapping units Built into each gpu, these resize and rotate bitmaps for texturing scenes

render output processors GPU commponents responsible for transform pixels as they flow between memory buffers

Specifications Full list of technical specs

gpu

Radeon R9 290X  vs
GeForce 6800 Ultra Extreme 
GPU brand AMD Nvidia
GPU name Hawaii NV40
Market Desktop Desktop
Clock speed 1,000 MHz 450 MHz
Is dual GPU No No
Reference card None None

raw performance

Texture mapping units 176 16
Render output processors 64 16
Pixel rate 64 GPixel/s 7.2 GPixel/s
Texture rate 176 GTexel/s 7.2 GTexel/s

memory

Radeon R9 290X  vs
GeForce 6800 Ultra Extreme 
Memory clock speed 1,250 MHz 550 MHz
Effective memory clock speed 5,000 MHz 1,100 MHz
Memory bus 512 bit 256 bit
Memory 4,096 MB 256 MB
Memory type GDDR5 GDDR3
Memory bandwidth 320 GB/s 35.2 GB/s

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