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Differences What are the advantages of each

Front view of Radeon RX 580

Reasons to consider the
AMD Radeon RX 580

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Significantly more memory 8,192 MB vs 2,048 MB 4x more memory
Higher clock speed 1,257 MHz vs 1,006 MHz Around 25% higher clock speed
Better floating-point performance 6,175 GFLOPS vs 3,090.4 GFLOPS Around 2x better floating-point performance
Higher effective memory clock speed 8,000 MHz vs 6,008 MHz Around 35% higher effective memory clock speed
Higher memory bandwidth 256 GB/s vs 192.3 GB/s Around 35% higher memory bandwidth
Higher texture rate 193 GTexel/s vs 128.8 GTexel/s Around 50% higher texture rate
Higher turbo clock speed 1,340 MHz vs 1,058 MHz More than 25% higher turbo clock speed
More shading units 2,304 vs 1,536 768 more shading units
Higher pixel rate 42.88 GPixel/s vs 32.2 GPixel/s Around 35% higher pixel rate
Significantly higher memory clock speed 2,000 MHz vs 1,502 MHz Around 35% higher memory clock speed
Front view of GeForce GTX 680 Mac

Reasons to consider the
EVGA GeForce GTX 680 Mac

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GPUBoss is not aware of any important advantages of the EVGA GeForce GTX 680 Mac vs the AMD Radeon RX 580.

Features Key features of the Radeon RX 580  vs GeForce GTX 680 Mac 

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

Radeon RX 580
256 GB/s
GeForce GTX 680 Mac
192.3 GB/s

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

Radeon RX 580
42.88 GPixel/s
GeForce GTX 680 Mac
32.2 GPixel/s

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

Radeon RX 580
193 GTexel/s
GeForce GTX 680 Mac
128.8 GTexel/s

floating point performance How fast the gpu can crunch numbers

Radeon RX 580
6,175 GFLOPS
GeForce GTX 680 Mac
3,090.4 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 580  vs
GeForce GTX 680 Mac 
GPU brand AMD Nvidia
GPU name Polaris 20 GK104
Clock speed 1,257 MHz 1,006 MHz
Turbo clock speed 1,340 MHz 1,058 MHz
Is dual GPU No No
Reference card None Nvidia GeForce GTX 680 Mac Edition 1 GHz 2 GB

raw performance

Shading units 2,304 1,536
Texture mapping units 144 128
Render output processors 32 32
Pixel rate 42.88 GPixel/s 32.2 GPixel/s
Texture rate 193 GTexel/s 128.8 GTexel/s
Floating-point performance 6,175 GFLOPS 3,090.4 GFLOPS

memory

Radeon RX 580  vs
GeForce GTX 680 Mac 
Memory clock speed 2,000 MHz 1,502 MHz
Effective memory clock speed 8,000 MHz 6,008 MHz
Memory bus 256 bit 256 bit
Memory 8,192 MB 2,048 MB
Memory type GDDR5 GDDR5
Memory bandwidth 256 GB/s 192.3 GB/s

noise and power

TDP 185W 195W

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