It’s really 2 nodes with both 4 & 20A having limited libraries and being used as a sort of pilot program.
They were being worked on in parallel, not sequentially and have been in some sort of development (path finding, process refinement, etc) for probably 5 years at this point.
If you don’t care about overclocking memory, then your best bet is to get a mid to high range board in the $300-400 range. Below are what I feel are solid options:
Disclaimer I own the Asus Z790 Strix-E and it’s been great. I’ve had absolutely zero issues but if I could go back I would’ve bought the OG Z790 Apex or the Z790 Apex Encore since I’m not a huge fan of 4-DIMM motherboards.
Good for Samsung if this is true. With the news that mediatek is dual sourcing some components with IFS it seems like we may be on the way to diversifying our leading edge semiconductors.
Nobody’s CPU is stable at -0.135. If they think their CPU can run with that aggressive of an undervolt they’re either not testing it correctly or their default motherboard calibration is absolute trash.
Realistically, these CPUs aren’t truly stable past -0.050 undervolt. There’s some randomness but there’s less than you think since the motherboard will always attempt to adhere to each CPU’s individual VID and the VID accounts for the silicon quality.
A better binned CPU doesn’t always mean you can undervolt it further, it means it’s baseline voltage is going to be lower at a given frequency. How far you can undervolt is mainly dependent on how accurate the motherboard’s calibration is.
I don’t think it’s mutually exclusive. I would be surprised if any of these 3 customers are using 18A exclusively.
Afaik Intel actually designed this Ericsson chip or so I was told.