Dwaine Maggart wrote:@Robert: That's all good general info. But that not the issue here.
Older MacPro tower CPU's don't have the processor extensions needed to decode 12K BRAW. Systems with those older CPU's will just crash if you attempt to view or play a 12K BRAW file.
It MAY be possible that the BRAW decoding can be modified to support those older CPUs, but there is no guarantee that will be possible or will happen.
I came across other related issues (not attributed to Resolve) that made me change my plan to "upgrade".
The original recent plan was to purchase the old MP tower (pre 2013) and bump it up with max RAM, big GPU and newer PCI-e based SSD RAID to be the primary edit station.
But with the advent of Big Sur and a few other not-so-well-known gotchas I'm actually dumping the tower I just bought and instead going with a max'd out, new iMac with 8-cores and max RAM (128GB).
Between issues with BRAW, ProRes RAW and any HDR workflow the older tower is finally outdated and unusable. It was gonna happen sooner or later...