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Differences What are the advantages of each

Front view of Radeon RX Vega 56

Reasons to consider the
AMD Radeon RX Vega 56

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Significantly higher memory bandwidth 409.6 GB/s vs 256 GB/s More than 60% higher memory bandwidth
Significantly better floating-point performance 10,544 GFLOPS vs 6,175 GFLOPS More than 70% better floating-point performance
Significantly higher texture rate 329.5 GTexel/s vs 193 GTexel/s More than 70% higher texture rate
Significantly higher pixel rate 94.14 GPixel/s vs 42.88 GPixel/s Around 2.2x higher pixel rate
Significantly more render output processors 64 vs 32 Twice as many render output processors
Significantly more shading units 3,584 vs 2,304 1280 more shading units
Significantly more texture mapping units 224 vs 144 80 more texture mapping units
Much wider memory bus 2,048 bit vs 256 bit 8x wider memory bus
More compute units 56 vs 36 20 more compute units
Higher turbo clock speed 1,471 MHz vs 1,340 MHz Around 10% higher turbo clock speed
Front view of Radeon RX 580

Reasons to consider the
AMD Radeon RX 580

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Much higher effective memory clock speed 8,000 MHz vs 1,600 MHz 5x higher effective memory clock speed
Higher clock speed 1,257 MHz vs 1,156 MHz Around 10% higher clock speed
Much higher memory clock speed 2,000 MHz vs 800 MHz 2.5x higher memory clock speed
Lower TDP 185W vs 210W More than 10% lower TDP

Features Key features of the Radeon RX Vega 56  vs 580 

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

Radeon RX Vega 56
409.6 GB/s
Radeon RX 580
256 GB/s

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

Radeon RX Vega 56
94.14 GPixel/s
Radeon RX 580
42.88 GPixel/s

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

Radeon RX Vega 56
329.5 GTexel/s
Radeon RX 580
193 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon RX Vega 56
10,544 GFLOPS
Radeon RX 580
6,175 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 RX Vega 56  vs
580 
GPU brand AMD AMD
GPU name Vega 10 Polaris 20
Clock speed 1,156 MHz 1,257 MHz
Turbo clock speed 1,471 MHz 1,340 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 3,584 2,304
Texture mapping units 224 144
Render output processors 64 32
Compute units 56 36
Pixel rate 94.14 GPixel/s 42.88 GPixel/s
Texture rate 329.5 GTexel/s 193 GTexel/s
Floating-point performance 10,544 GFLOPS 6,175 GFLOPS

memory

Radeon RX Vega 56  vs
580 
Memory clock speed 800 MHz 2,000 MHz
Effective memory clock speed 1,600 MHz 8,000 MHz
Memory bus 2,048 bit 256 bit
Memory 8,192 MB 8,192 MB
Memory bandwidth 409.6 GB/s 256 GB/s

noise and power

TDP 210W 185W

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