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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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Higher effective memory clock speed 8,000 MHz vs 7,000 MHz Around 15% higher effective memory clock speed
Higher memory clock speed 2,000 MHz vs 1,750 MHz Around 15% higher memory clock speed
Lower TDP 185W vs 250W More than 25% lower TDP
Front view of Radeon Pro Duo Polaris

Reasons to consider the
AMD Radeon Pro Duo Polaris

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Much more memory 32,784 MB vs 8,192 MB More than 4x more memory
Is dual GPU Yes vs No About half of graphics cards are dual GPU
Significantly higher memory bandwidth 448 GB/s vs 256 GB/s 75% higher memory bandwidth
Significantly better floating-point performance 11,456 GFLOPS vs 6,175 GFLOPS More than 85% better floating-point performance
Significantly higher texture rate 358 GTexel/s vs 193 GTexel/s More than 85% higher texture rate
Significantly higher pixel rate 79.6 GPixel/s vs 42.88 GPixel/s More than 85% higher pixel rate
Many more shading units 4,608 vs 2,304 Twice as many shading units
Many more texture mapping units 288 vs 144 Twice as many texture mapping units
Significantly more compute units 72 vs 36 Twice as many compute units
Significantly more render output processors 64 vs 32 Twice as many render output processors
Wider memory bus 512 bit vs 256 bit 2x wider memory bus

Features Key features of the Radeon RX 580  vs Pro Duo Polaris 

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
Radeon Pro Duo Polaris
79.6 GPixel/s

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

Radeon RX 580
193 GTexel/s
Radeon Pro Duo Polaris
358 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon RX 580
6,175 GFLOPS
Radeon Pro Duo Polaris
11,456 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


Radeon RX 580  vs
Pro Duo Polaris 
GPU name Polaris 20 Ellesmere
Clock speed 1,257 MHz 1,243 MHz
Is dual GPU No Yes
Reference card None None

raw performance

Shading units 2,304 4,608
Texture mapping units 144 288
Render output processors 32 64
Compute units 36 72
Pixel rate 42.88 GPixel/s 79.6 GPixel/s
Texture rate 193 GTexel/s 358 GTexel/s
Floating-point performance 6,175 GFLOPS 11,456 GFLOPS


Radeon RX 580  vs
Pro Duo Polaris 
Memory clock speed 2,000 MHz 1,750 MHz
Effective memory clock speed 8,000 MHz 7,000 MHz
Memory bus 256 bit 512 bit
Memory 8,192 MB 32,784 MB
Memory type GDDR5 GDDR5
Memory bandwidth 256 GB/s 448 GB/s

noise and power

TDP 185W 250W


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