@Sniki,
I noticed you added references to various CPUs that could be used in the 8300.
I have obtained two i5-3570K, which contain HD4000 graphics. They were $45 each
on eBay, including shipping.
I've installed one in a 8300 CMT, configured as a MacMini6,1. I can see that power
management with ssdtPRGen works better in this machine than in my other
configurations, and it tends to idle at a much lower average frequency.
I am also able to configure the HD4000 graphics with 2GB memory by adding the
key framebuffer-unifiedmem set to data value 00000080, instead of the default
1.5GB with data value 00000060. The Geekbench4 scores increased slightly with
the larger graphics memory, from 6900 to 7100.
Even though Hackintool says the VDA decoder is fully enabled, I am not able to decode
any AppleTV with the default settings. I get green screen and audio with HLS video or
mp4 video. Does anyone know the correct HD4000 setting for shikigva (if any)?
When using the i5-3470K's HD4000 in another machine configured as a iMac13,2
with Nvidia GT720 graphics, I find I can only get appleTV with IGPU disabled
and shikigva=256 for software decoding.
I also wanted to report a bug with the latest 10.15.3 beta version 19D75a. I don't see
it in the HD4000 graphics machine. But in an iMac 13,2 machine with disabled HD2500
and a Kepler Nvidia GT730, I see a strange failure. If I go to the control panel, display
settings, screen saver, and push the hot corners button, I can't get the pop-up menu
when clicking on any of the four corners displayed. Instead I get a blank menu outline,
and garbage in my screen graphics. I haven't yet looked for this in my RX560 machines.
Lisa