BUT one thing is clear AMD cant get anywere near that with Stoney Ridge...
No need to keep Stoney alive when they can use Picasso instead.
I'm not vouching for a Stoney Ridge 9230e or anything.
IOD with a 16B/cycle Infinity Fabric to the ACD.
16B at 2.4 GHz(DDR4-2400) => 38.4 GB/s
16B at 3.6 GHz(DDR4-3600) => 57.6 GB/s
64-bit 3.6 GHz(ideal) => 28.8 GB/s
to 128-bit 3.6 GHz(mostly un-ideal) => 57.6 GB/s
If late enough 64-bit 4.8 GHz+ => 38.4 GB/s+. (DDR5) // should be feasible since it does support LPDDR4X at max speed(4267 MHz).
Preferably the IOD will be done with ultra-high-speed + ultra-low-leakage I/O, Logic, etc. Allow the I/O in 22FDX to be down one tenth the consumption across; PCIe, DDRx, Security, Display cores, etc.
On to the ACD side; PDSOI(HP) -> FDSOI(UHP to ULP) <- Bulk(LP)
16B/cycle Infinty Fabric enters which gets buffered by a die cache which basically is a L3 cache.
CPU core is overhauled further than Bulldozer/Excavator into extreme scaling. Low Vdd gets higher frequencies and High Vdd gets into extremes. Near-threshold(0.3vdd) to low-threshold(1.0v) goes to sub-10 watt. While super-threshold range(>1.0v to 1.55v) gets super high performances and goes towards >15W.
Multimedia cores go from UVD/VCE cores to VCN cores. The UWAVFS from FDSOI should improve multimedia enough to support four VCN cores or get away with two for the same function as four on 14LPP.
GPU core if possible should jump from GCN to RDNA. It will either lead to 3CUs to 2CU(Single dual-CU) or 4CU(Double dual-CU).
etc, etc, etc.
The longer it takes the more absurd the end results can be as 22FDX matures. It also makes it cheaper, so it definitely is better to wait.
At best it beats Raven2 with ease, at worst it is only 1.5x the performance of Stoney. While, having a successor product in 12FDX which pushes it further than Bristol. This is where 128-bit DDR4/DDR5 is probably better as a long-term.