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Differences What are the advantages of each

Front view of Radeon RX Vega 64 Limited

Reasons to consider the
AMD Radeon RX Vega 64 Limited

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Much better floating-point performance 12,665 GFLOPS vs 1,211 GFLOPS Around 10.5x better floating-point performance
Much higher memory bandwidth 483.8 GB/s vs 112 GB/s More than 4.2x higher memory bandwidth
Much higher texture rate 395.8 GTexel/s vs 37.86 GTexel/s Around 10.5x higher texture rate
Significantly more memory 8,192 MB vs 2,048 MB 4x more memory
Much higher pixel rate 98.94 GPixel/s vs 18.93 GPixel/s Around 5.2x higher pixel rate
Many more shading units 4,096 vs 512 3584 more shading units
Many more texture mapping units 256 vs 32 224 more texture mapping units
Higher clock speed 1,247 MHz vs 1,100 MHz Around 15% higher clock speed
Many more compute units 64 vs 8 56 more compute units
Many more render output processors 64 vs 16 48 more render output processors
Much wider memory bus 2,048 bit vs 128 bit 16x wider memory bus
Significantly higher turbo clock speed 1,546 MHz vs 1,183 MHz More than 30% higher turbo clock speed
Front view of Radeon RX 550

Reasons to consider the
AMD Radeon RX 550

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Much higher effective memory clock speed 7,000 MHz vs 1,890 MHz Around 3.8x higher effective memory clock speed
Much higher memory clock speed 1,750 MHz vs 945 MHz More than 85% higher memory clock speed
Much lower TDP 50W vs 295W 5.9x lower TDP

Features Key features of the Radeon RX Vega 64 Limited  vs 550 

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 Vega 64 Limited
98.94 GPixel/s
Radeon RX 550
18.93 GPixel/s

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

Radeon RX Vega 64 Limited
395.8 GTexel/s
Radeon RX 550
37.86 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon RX 550
1,211 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 Limited  vs
550 
GPU brand AMD AMD
GPU name Vega 10 Lexa
Clock speed 1,247 MHz 1,100 MHz
Turbo clock speed 1,546 MHz 1,183 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 4,096 512
Texture mapping units 256 32
Render output processors 64 16
Compute units 64 8
Pixel rate 98.94 GPixel/s 18.93 GPixel/s
Texture rate 395.8 GTexel/s 37.86 GTexel/s
Floating-point performance 12,665 GFLOPS 1,211 GFLOPS

memory

Radeon RX Vega 64 Limited  vs
550 
Memory clock speed 945 MHz 1,750 MHz
Effective memory clock speed 1,890 MHz 7,000 MHz
Memory bus 2,048 bit 128 bit
Memory 8,192 MB 2,048 MB
Memory bandwidth 483.8 GB/s 112 GB/s

noise and power

TDP 295W 50W

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