First off you can see that I am using SL version 12.0.30 and not 12.0.40 (the latest version). I went back to 12.0.30 because it uses my GPU more than the CPU/Memory that the 12.0.40 version. Which in my case, allows for faster Unmix results.
So I upgraded to RX 12 Standard from RX 11 Standard. This new version (as I understand things) has the same Stem Split process that is used in the RX 12 Advanced version. It does not have the ability to split elements into as many catagories that SLPRo does, but for my use it’s adequate, four stems total: Voice/Bass/Drums/& Other. The resultant stem visual is nice looking (4 individual wave over sprectrum displays) with an interesting selection/play option. Note: the bass guitar upper overtones are caught in the ‘Other’ stem, along with keys, guitars, and horns, unlike the stem option/results in SLPro. I will add that the stems of the vocal, bass, & drums are well separated.
But here’s where I’m going with this review. RX12 Standard uses CPU/Memory and a low level use of GPU similar to SLPro (12.0.40!), but the process is faster (2 minutes faster on the Tom Dowd Remastered Allman Bros (first album) track, Whipping Post (track time 5:16), for example. Looking at the Task Manager while stem splitting, the CPU usage is quite steady, varying from 40% to 55% (no spikes), Memory is steady at 10% to 10.4%, and GPU usage is .6% of 8G.
I find this RX process very similar in direction as to computer component/energy use to SLPro 12.0.40, but it seems better, faster, and more stable with less CPU spikes and less Memory usage. Can SLPro 13 developers take a look at RX12 Standard and maybe borrow from their insights of component/energy usage? I would love to move off of 12.0.30 when SLPro 13 arrives.