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Differences What are the advantages of each

Front view of Radeon RX Vega 64 Nano

Reasons to consider the
AMD Radeon RX Vega 64 Nano

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Much wider memory bus 2,048 bit vs 352 bit More than 5.8x wider memory bus
More shading units 4,096 vs 3,584 512 more shading units
More texture mapping units 256 vs 224 32 more texture mapping units
Front view of GeForce GTX 1080 Ti

Reasons to consider the
Nvidia GeForce GTX 1080 Ti

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Much higher effective memory clock speed 11,008 MHz vs 1,600 MHz Around 7x higher effective memory clock speed
Significantly higher clock speed 1,480 MHz vs 1,156 MHz Around 30% higher clock speed
Significantly higher pixel rate 139.2 GPixel/s vs 79.81 GPixel/s Around 75% higher pixel rate
More memory 11,264 MB vs 8,192 MB Around 40% more memory
Higher memory bandwidth 484.4 GB/s vs 409.6 GB/s Around 20% higher memory bandwidth
Significantly higher turbo clock speed 1,582 MHz vs 1,247 MHz More than 25% higher turbo clock speed
Better floating-point performance 11,340 GFLOPS vs 10,215 GFLOPS More than 10% better floating-point performance
More render output processors 88 vs 64 24 more render output processors
Higher texture rate 354.4 GTexel/s vs 319.2 GTexel/s More than 10% higher texture rate
Significantly higher memory clock speed 1,376 MHz vs 800 MHz More than 70% higher memory clock speed

Features Key features of the Radeon RX Vega 64 Nano  vs GeForce GTX 1080 Ti 

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 Nano
79.81 GPixel/s
GeForce GTX 1080 Ti
139.2 GPixel/s

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

Radeon RX Vega 64 Nano
319.2 GTexel/s
GeForce GTX 1080 Ti
354.4 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon RX Vega 64 Nano
10,215 GFLOPS
GeForce GTX 1080 Ti
11,340 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 Nano  vs
GeForce GTX 1080 Ti 
GPU brand AMD Nvidia
GPU name Vega 10 GP102
Clock speed 1,156 MHz 1,480 MHz
Turbo clock speed 1,247 MHz 1,582 MHz
Is dual GPU No No
Reference card None None

raw performance

Shading units 4,096 3,584
Texture mapping units 256 224
Render output processors 64 88
Pixel rate 79.81 GPixel/s 139.2 GPixel/s
Texture rate 319.2 GTexel/s 354.4 GTexel/s
Floating-point performance 10,215 GFLOPS 11,340 GFLOPS

memory

Radeon RX Vega 64 Nano  vs
GeForce GTX 1080 Ti 
Memory clock speed 800 MHz 1,376 MHz
Effective memory clock speed 1,600 MHz 11,008 MHz
Memory bus 2,048 bit 352 bit
Memory 8,192 MB 11,264 MB
Memory bandwidth 409.6 GB/s 484.4 GB/s

noise and power

TDP 250W 250W

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