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Differences What are the advantages of each

Front view of Radeon RX Vega 64

Reasons to consider the
AMD Radeon RX Vega 64

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Much higher memory bandwidth 483.8 GB/s vs 256 GB/s Around 90% higher memory bandwidth
Much better floating-point performance 12,665 GFLOPS vs 6,175 GFLOPS More than 2x better floating-point performance
Much higher texture rate 395.8 GTexel/s vs 193 GTexel/s More than 2x higher texture rate
Significantly higher pixel rate 98.94 GPixel/s vs 42.88 GPixel/s More than 2.2x higher pixel rate
Significantly more shading units 4,096 vs 2,304 1792 more shading units
Significantly more texture mapping units 256 vs 144 112 more texture mapping units
Significantly more render output processors 64 vs 32 Twice as many render output processors
Much wider memory bus 2,048 bit vs 256 bit 8x wider memory bus
Significantly more compute units 64 vs 36 28 more compute units
Higher turbo clock speed 1,546 MHz vs 1,340 MHz More than 15% 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 1,890 MHz Around 4.2x higher effective memory clock speed
Much higher memory clock speed 2,000 MHz vs 945 MHz More than 2x higher memory clock speed
Significantly lower TDP 185W vs 295W More than 35% lower TDP

Features Key features of the Radeon RX Vega 64  vs 580 

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

Radeon RX Vega 64
483.8 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 64
98.94 GPixel/s
Radeon RX 580
42.88 GPixel/s

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

Radeon RX Vega 64
395.8 GTexel/s
Radeon RX 580
193 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon RX Vega 64
12,665 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 64  vs
580 
GPU brand AMD AMD
GPU name Vega 10 Polaris 20
Clock speed 1,247 MHz 1,257 MHz
Turbo clock speed 1,546 MHz 1,340 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 4,096 2,304
Texture mapping units 256 144
Render output processors 64 32
Compute units 64 36
Pixel rate 98.94 GPixel/s 42.88 GPixel/s
Texture rate 395.8 GTexel/s 193 GTexel/s
Floating-point performance 12,665 GFLOPS 6,175 GFLOPS

memory

Radeon RX Vega 64  vs
580 
Memory clock speed 945 MHz 2,000 MHz
Effective memory clock speed 1,890 MHz 8,000 MHz
Memory bus 2,048 bit 256 bit
Memory 8,192 MB 8,192 MB
Memory bandwidth 483.8 GB/s 256 GB/s

noise and power

TDP 295W 185W

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