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smckenzie

macrumors member
Original poster
May 7, 2022
97
106
I know it's a long shot, but curious if anyone is using a cpu renderer on the 28 core and how it performs?

Should the 28 core scale linearly in terms of render times?

Currently using the 16 core and was thinking of upgrading the cpu.
 
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sirio76

macrumors 6502a
Mar 28, 2013
578
416
I know it's a long shot, but curious if anyone is using a cpu renderer on the 28 core and how it performs?

Should the 28 core scale linearly in terms of render times?

Currently using the 16 core and was thinking of upgrading the cpu.
It doesn’t scale linearly because the more cores you use the lower the clock is (at least on Intel/AMD CPU), realistically you will get about 30% more render speed.
 

singhs.apps

macrumors 6502a
Oct 27, 2016
660
400
I know it's a long shot, but curious if anyone is using a cpu renderer on the 28 core and how it performs?

Should the 28 core scale linearly in terms of render times?

Currently using the 16 core and was thinking of upgrading the cpu.
Simple rule of thumb : find base clock (or all core boost of the processor - NOT top speed which is usually one/two cores max ) and multiply that by number of cores. Add 10% to the result (hyper/multi threading) and you get a sense of how fast your processor will render vs the comparison.
It by no means an accurate calculation, other factors may come into play, but generally it gives you something to gauge before deciding to investigate further.

Ideally you want to compare processors a generation or two between them and/or price to performance ratio per core.

Arnold does scale really well and makes good use of the cores you throw at it.
 
Last edited:

blackquartz

macrumors regular
Oct 22, 2009
116
157
I know it's a long shot, but curious if anyone is using a cpu renderer on the 28 core and how it performs?

Should the 28 core scale linearly in terms of render times?

Currently using the 16 core and was thinking of upgrading the cpu.
If you do update please share the results, im very interested in this!
 

mikas

macrumors 6502a
Sep 14, 2017
898
648
Finland
Just to give my prediction to it: 43% increase in speed.
That's based on CPU benchmark and to an assumption Arnold resembles C4D cinerender behavior.
1663049299955.png
 

smckenzie

macrumors member
Original poster
May 7, 2022
97
106
Thanks for the responses. Am I right in thinking the best bang for buck/performance is the 24 core? On Ebay they are around $1175 for a non QS version whereas the 28core is $2200 but looking at the benchmark there's not a wild leap in performance from 24 to 28 cores?
 
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