GloFo doesn't do LPU
It is highly unlikely that AMD will manufacture any CPUs at a secondary manufacturer (or any chip at two different manufacturers at the same time, because it would double a lot of fixed costs
using a different process at this secondary manufacturer is even more unlikely
They changed the WSA to use other foundries. I think they did it as a backup in case the demand is very high and GF can't sustain it.
14 LPU is not in production. 14 LPU PDKs are only now available. Any chip designed on 14 LPU can launch only in mid-H2 2018.Is the 14nm LPU even available in volume at the moment?
AFAIK the node used for Polaris refreshes is 14nm LPC (i.e. more cost effective and more mature LPP).
14 LPU is not in production. 14 LPU PDKs are only now available. Any chip designed on 14 LPU can launch only in mid-H2 2018.
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Are you stating that even if GloFlo can't produce a product because of capacity constraints, AMD still has to get permission to fab elsewhere?GloFo still needs to approve everything outsourced, and they won't approve them losing their bread and butter products.
Yes. It's the last nasty leftover from Hector. Hector benefited greatly. And came close to sinking the company.Are you stating that even if GloFlo can't produce a product because of capacity constraints, AMD still has to get permission to fab elsewhere?
Is the 14nm LPU even available in volume at the moment?
AFAIK the node used for Polaris refreshes is 14nm LPC (i.e. more cost effective and more mature LPP).
Process design kits (PDK) for 14LPU and 10LPU process technologies will be available during the second quarter of 2017.
Yes. It's the last nasty leftover from Hector. Hector benefited greatly. And came close to sinking the company.
Apparently not, it's still LPP.Is the 14nm LPU even available in volume at the moment?
AFAIK the node used for Polaris refreshes is 14nm LPC (i.e. more cost effective and more mature LPP).
Apparently not, it's still LPP.
I had the suspicion, but it was confirmed somewhere to be a more mature LPP.
That was my thought process too, but apparently AMD marketing thinks otherwise.The 14nm LPP is officially advertized as "2nd gen.".
Since the Polaris refreshes are advertized to be built with "3rd gen finfet process" it means either GF is tinkering with the process themselves, or 14nm LPC is used.
More mature production with the same exact process wouldn't justify it being called as newer generation.
Meanwhile on the manufacturing front, all of the revised Polaris chips are being manufactured on what AMD is calling the “Latest Generation FinFET 14” process. This is a bit of a mouthful, but in short it’s AMD calling attention to the improvements partners GlobalFoundries and Samsung have made to their 14nm LPP processes in the last year. Yields are up and overall chip quality is better, which improves the average performance (clockspeed & power) characteristics of the chips. Both foundries have also been making other undisclosed, small tweaks to their lines to further boost chip quality.
well, it would still be with dual channel memory though. No pins on AM4 for quad channel.Curious, would it be technically possible to hav more than 8 cores on AM4 platform? Are there enough pins to have more than 8 cores? Just wondering if Zen2 could have more than 8 cores when it comes a year or two later? Does anybody know?
Probably not acceptable for 16 core unless there are some major improvements in DDR4 speeds (and an IMC to match). DDR4-4266 would be a minimum!
There's a limited number of pins on AM4. Future products will likely have the same integrated I/O capabilities. Eight cores on AM4 (what is really a mainstream platform) I think is plenty for the next several years. All AMD needs to do is commit to IPC increases while maintaining the same or less power. Any clock improvements would only be a bonus. That seems to be AMD's forward focus is IPC improvements.Curious, would it be technically possible to hav more than 8 cores on AM4 platform? Are there enough pins to have more than 8 cores? Just wondering if Zen2 could have more than 8 cores when it comes a year or two later? Does anybody know?
Indeed, eight cores is plenty for the life of AM4: frequency increase alone could keep this platform afloat, considering we're talking about 25% headroom in (MT) clocks as manufacturing process improves and power usage allows. Add any IPC jump on top of that, even if we stay in the realm of 5-10%, and there's plenty of room to grow as efficiency rises, likely more than next gen process allows for.Eight cores on AM4 (what is really a mainstream platform) I think is plenty for the next several years.
Any number of factors could be affecting it. Don't forget the various subtimings.Someone correct me please, but after comparing 3333-14 vs. 3600-18 it seems that lower latency memory is bottlenecked by the (whatever) fabric connection between CPU and memory? I would expect 3333-14 latency to be lower than 3600-18, but alas, it is not so.