B2 stepping of Ryzen 5000 CPUs Spotted
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kcajjones
I wonder if these might overclock better?
SSD_PRO
That God hopefully they are finally fixed.
Octopuss
RED.Misfit
tunejunky
Silva
TheDeeGee
Gomez Addams
That is not how steppings are noted. That is a revision number and the two are not the same. Steppings refer specifically to the lithography masks. Revisions are changes to any step in the fabrication process and there are usually more than a hundred steps involved. Here is a screenshot from CPU-Z that shows how the two appear :
https://www.guru3d.com/index.php?ct=articles&action=file&id=66027
As you can see, the revision of that chip was B0 so the new one is two versions later.
Astyanax
RED.Misfit
schmidtbag
user1
probably fixed some of the bugs listed in here https://www.amd.com/system/files/TechDocs/56683-PUB_1.04.pdf or maybe some new ones
could also be related to the new 3d v cache chips
JonasBeckman
Hardware bug fixes would be neat with less workarounds in bios or the chipset driver but yeah the cache CPU's was what I was thinking of too, thought there was a earlier stepping too but maybe the integrated GPU models didn't see any changes like that when those were released.
Not sure if the stepping had to be updated for the cache or not either, newer has to be better though something being fixed or whatever.
Unlike hardware revisions were components are stripped out changed to be cheaper. :P
user1
Venix
Isn't it common practice for cpus to have more steppings on their production lifetime ? What is strange exactly here ?
Netherwind
user1
Venix
user1
https://www.amd.com/system/files/TechDocs/25759.pdf there are 13 different steppings! , then we look at 10h (phenom) and there are 12!, bulldozer https://www.amd.com/system/files/TechDocs/48063_15h_Mod_00h-0Fh_Rev_Guide.pdf there are only 2 publicly released steppings, zen 2 only has 1 retail stepping https://developer.amd.com/wp-content/resources/56323-PUB_0.78.pdf , admittedly some of the older ones include engineering samples, but still they're definitely not releasing new steppings into the wild the way they used too.
probably for the best tbh, means cpus are less buggy in general.
They do improve yields but that generally doesn't result in a newer stepping, steppings are usually changes to fix bugs or make improvements to the design.
intel/amd used to release alot of steppings with penryn we got c0 c1 e0 all within a pretty short period of time all of which were retail chips, intel was also a little loose with their steppings too, they would make pretty significant changes, most notably the E0 stepping of penryn actually adds a new instruction and changes the cache timings allowing them to clock much higher.
nowadays most cpus will be lucky to see a couple steppings hit retail,
for reference here is a the revsion guide for old athlon xp chips Venix
@user1 i see so steppings where a usual thing but i never caught up that they are not anymore 😛 thanks for the links too it will be an interesting read !