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Differences What are the advantages of each

Front view of Radeon RX Vega XT

Reasons to consider the
AMD Radeon RX Vega XT

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Much higher memory bandwidth 512 GB/s vs 256 GB/s 2x higher memory bandwidth
Much better floating-point performance 13,353 GFLOPS vs 6,175 GFLOPS Around 2.2x better floating-point performance
Much higher texture rate 417.3 GTexel/s vs 193 GTexel/s Around 2.2x higher texture rate
Higher clock speed 1,500 MHz vs 1,257 MHz Around 20% higher clock speed
Significantly higher pixel rate 104.3 GPixel/s vs 42.88 GPixel/s Around 2.5x 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 1,630 MHz vs 1,340 MHz More than 20% 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 2,000 MHz 4x higher effective memory clock speed
Much higher memory clock speed 2,000 MHz vs 1,000 MHz 2x higher memory clock speed
Lower TDP 185W vs 225W Around 20% lower TDP

Features Key features of the Radeon RX Vega XT  vs 580 

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

Radeon RX 580
256 GB/s

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

Radeon RX Vega XT
104.3 GPixel/s
Radeon RX 580
42.88 GPixel/s

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

Radeon RX Vega XT
417.3 GTexel/s
Radeon RX 580
193 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon RX Vega XT
13,353 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 XT  vs
580 
GPU brand AMD AMD
GPU name Vega 10 Polaris 20
Clock speed 1,500 MHz 1,257 MHz
Turbo clock speed 1,630 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 104.3 GPixel/s 42.88 GPixel/s
Texture rate 417.3 GTexel/s 193 GTexel/s
Floating-point performance 13,353 GFLOPS 6,175 GFLOPS

memory

Radeon RX Vega XT  vs
580 
Memory clock speed 1,000 MHz 2,000 MHz
Effective memory clock speed 2,000 MHz 8,000 MHz
Memory bus 2,048 bit 256 bit
Memory 8,192 MB 8,192 MB
Memory bandwidth 512 GB/s 256 GB/s

noise and power

TDP 225W 185W

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