iMac 2017 Radeon Pro vs their desktop counterparts

Khaleal

macrumors regular
Original poster
Aug 24, 2013
170
67
How do Radeon Pro cards installed in 2017 iMacs (like Radeon Pro 570, 580, etc..) compare to their desktop counterparts (RX 570, RX 580)?
 

J.Gallardo

macrumors 6502
Apr 4, 2017
264
54
Spain
I asked myself same question time ago (2017 iMac, 580Pro).
It took me some time in the web to find that "Pro" in this case is not pro. These are special cards made for Apple (perhaps others too) and they aren't AMD Pro line of v-cards.
Mine is just a Radeon 580x working with slightly less voltage, minor frequency, less heat. Why is named "Pro"? Who knows.
 

mikehalloran

macrumors 68000
Oct 14, 2018
1,600
390
The Sillie Con Valley
Mine is just a Radeon 580x working with slightly less voltage, minor frequency, less heat.
Apple does that for two reasons: One is to increase long term reliability. Th other is so that wider tolerances allow them to use silicon that tests on the lower end of the spec—until tested, no one knows the exact parameters of an individual chip. By allowing a wider acceptable spec, they get a lower overall price. Apple does this with Intel CPUs, too—that's why the clock speeds are lower than those same CPUs on the shelf at Fry's.
Why is named "Pro"? Who knows.
Everybody knows. Marketing.
 

padams35

macrumors regular
Nov 10, 2016
217
102
How do Radeon Pro cards installed in 2017 iMacs (like Radeon Pro 570, 580, etc..) compare to their desktop counterparts (RX 570, RX 580)?
Radeon Pros: https://www.amd.com/en/graphics/workstations-radeon-pro-500
Radeon RX 500s: https://www.amd.com/en/RX-series#Radeon™-RX-500-Series

Mostly the Pro versions are cooler?underclocked versions of the desktop cards, except that the desktop RX 570's counterpart is the Radeon Pro 575. (The Pro 570 is a cutdown 28 compute unit version.)