Originally posted by: Viditor
Originally posted by: zach0624
Originally posted by: Viditor
Just thought I'd add some more grist for the mill here...
Kris Kubicki Blog
Production Barcelona samples come with the BA revision designator. These processors, manufactured after work-week 30 (WW30 for those who work in the corporate world) include errata fixes not present in the chips reviewed on September 10th.
One AMD developer, who wished to remain anonymous for non-disclosure purposes, stated, "B1 versus BA should be at least a 5%, if not more, gain in stream, integer and FPU performance."
An AMD engineer, when confronted with the claim, stated that 5% gains when moving from B1 to BA processors "seem conservative."
This will be very interesting regarding phenom's performance since it will be running on something like a b2 or b3(I haven't read much about steppings for a while so feel free to correct me if I'm wrong). Although this probably will end up like all the other info from amd and be BS. I really hope that is true though because, lets face it if amd goes down we will a be screwed.
Please AMD your our only hope.(sorry bad star wars joke)
AMD hasn't given out any BS, they just weren't able to fulfill the promise of a launch with the first stepping (B0)...in other words they screwed up.
That said, you are essentially correct...
Here's the list:
Stepping B0 - The first Barcelona benchmarked back in April...VERY broken and couldn't even clock over 1.6 GHz
Stepping B1 - This is the engineering sample chip given to reviewers and the one with all of the benches we've been reading. These are low and mid power Barcelonas (Opterons)
Stepping BA - This is the actual production Barcelona now shipping and available in stores. It is supposedly at least 5% faster than B1 with many errata fixed. Again, mid and low powered Barcelonas
Stepping B2 - Engineering sample version of High Performance Barcelonas. The 2.5 GHz Barcelona sample was one of these...
Stepping B3 - At the moment, this is reputed to be the actual shipping version of the high powered Barcelona, due to ship in Nov and be available in Dec.
Edit: BTW, the person Kris mentions as saying BA is 5%+ faster was an AMD Developer, not an employee...in other words, a 3rd party company man who is under NDA.