In chart from YuuKi_AnS (https://pbs.twimg.com/media/FXIgH-iVUAE2S2p?format=jpg&name=4096x4096) it seems like E2/E3 might have been built due to UPI link bugs (there are of course probably more issues fixed in each stepping)?806F4 is E0, D0 (806F3) will not work.
most of the errata(bugs) are not in the core section. do not expect accelerators to work properly in stepping E0.
they can, but for what reason intel builded E2,E3,E4,E5 ???
prepared and translated to english.In chart from YuuKi_AnS (https://pbs.twimg.com/media/FXIgH-iVUAE2S2p?format=jpg&name=4096x4096) it seems like E2/E3 might have been built due to UPI link bugs (there are of course probably more issues fixed in each stepping)?

ask the seller for HWinfo Report file (bus screenshot)I found Q0KM mentioned, which might be 8480+ equivalent, which has one of each accelerator, but I haven't been able to find much information.

there are some known SPR-WS ES2 but not found for sale.there still have not been any SPR-SP or EMR-SP ES found with unlocked multiplier yet, correct?
are all of these just equivalents to the retail counterparts? or do any have different core counts?there are some known SPR-WS ES2 but not found for sale.
ES2 = "0000" there is no equivalent.are all of these just equivalents to the retail counterparts? or do any have different core counts?
This thread is so long, it is hard to follow - is there any summary anywhere of the current state of QS dual socket (UPI) Xeons? My 2696v3 are incredibly long in the teeth at this point, so I am thinking of upgrading...
There are rumors out there, as time passes by - (10-nanometer Intel 7) LGA4677 both 4th (SPR, Golden cove same as Adler Lake for 12th gen P-Core desktops) and 5th (EMR, Raptor cove same as 13th/14th gen P-Core desktops) gens are starting to show signs of rapid degradation (initially might not exhibit signs but later on worsening up to instability and later failure, it's related to interlayer oxidation/electromigration/conductor depletion, also o-ring overload), it wasn't identified in 2022, reports started getting out in 2023 but intel kept it quiet, now more and more statistics and reviews are out there. Voltage correction might not be enough since it also needs microcode patch....
Skip 2nd gen 8100 (LGA 3647) unless you can find 8180s for the price of 8136s.
Skip 3rd gen 8300 (LGA 4189) all together. Really, skip it.
Xeon 8259CL, 8272CL, 8275CL my beloved.Skip 2nd gen 8100 (LGA 3647) unless you can find 8180s for the price of 8136s.
I thought these don't work on almost any motherboards?Xeon 8259CL, 8272CL, 8275CL my beloved.
These are coming up as D0 or D0 step 3 on eBay listings?So basically... for guaranteed use on an MS73 HB1/2/0 with B0 stepping (Buy it on Newegg, cheapest available at $1100 since scalping with people buying these like candy.)
QYFS = 8480+ B0
QYFX = 8490H B0
QYFW = Unknown, I can't find this sample anywhere.
QYFQ = 8468 B0
QYFP = 8468 B0
B0 and C0 not supported.So basically... for guaranteed use on an MS73 HB1/2/0 with B0 stepping
SPR-SP D0 ES and SPR-WSASUS W790 SAGE/ACE ($700) also supports B0 stepping natively
SPR-SP final stepping is E5(XCC)/S3(MCC)/B3(XCC HBM Xeon Max.)So B0 stepping is QS for 84xx?
QYFW: 806F3 stepping D0, 1.5Ghz 52C 270WQYFW = Unknown, I can't find this sample anywhere.
correct. 806F3 step 3 stepping D0(XCC) stepping R0(MCC)These are coming up as D0 or D0 step 3 on eBay listings?