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Differences What are the advantages of each

Front view of Radeon RX 580

Reasons to consider the
AMD Radeon RX 580

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Much higher clock speed 1,257 MHz vs 450 MHz More than 2.8x higher clock speed
Much higher effective memory clock speed 8,000 MHz vs 1,100 MHz More than 7.2x higher effective memory clock speed
Much more memory 8,192 MB vs 256 MB 32x more memory
Much higher memory bandwidth 256 GB/s vs 35.2 GB/s More than 7.2x higher memory bandwidth
Much higher texture rate 193 GTexel/s vs 7.2 GTexel/s More than 26.8x higher texture rate
Higher pixel rate 42.88 GPixel/s vs 7.2 GPixel/s Around 6x higher pixel rate
Significantly more texture mapping units 144 vs 16 128 more texture mapping units
Much higher memory clock speed 2,000 MHz vs 550 MHz Around 3.8x higher memory clock speed
More render output processors 32 vs 16 Twice as many render output processors
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 RX 580.

Features Key features of the Radeon RX 580  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 RX 580
42.88 GPixel/s

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

Radeon RX 580
193 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


Radeon RX 580  vs
GeForce 6800 Ultra Extreme 
GPU brand AMD Nvidia
GPU name Polaris 20 NV40
Clock speed 1,257 MHz 450 MHz
Is dual GPU No No
Reference card None None

raw performance

Texture mapping units 144 16
Render output processors 32 16
Pixel rate 42.88 GPixel/s 7.2 GPixel/s
Texture rate 193 GTexel/s 7.2 GTexel/s


Radeon RX 580  vs
GeForce 6800 Ultra Extreme 
Memory clock speed 2,000 MHz 550 MHz
Effective memory clock speed 8,000 MHz 1,100 MHz
Memory bus 256 bit 256 bit
Memory 8,192 MB 256 MB
Memory type GDDR5 GDDR3
Memory bandwidth 256 GB/s 35.2 GB/s


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