I just wanted to post back. On my new (old) 2010 dual six core dual Xeon Mac Pro section and elevation updates make use of all 24 cores, whether they are virtual or not. Usage caps at about 50% though.
2012 13" Macbook Pro 8GB Ram, OS X 10.14.6
2010 Mac Pro 2x 6 Core 2.93Ghz Xeon, 48Gb Ram, OS X 10.14.6, RX 580
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