Is there any PCIE PHYs for GloFo 12fdx?
- Thread starter Paul2
- Start date
Xebec
Well-known member
I saw this post earlier -- I'm not sure if this is the FDX variant specifically, but Zen 2's I/O die was built in Glo Fo 12nm:
www.tomshardware.com
That should include PCIe interfaces on top of a lot of other I/O. I'm not sure if this helps.
AMD still sells Zen 2 based kit (brand new) today, though I think it's all been migrated to TSMC (monolithic on N6/N7).
AMD Ryzen 9 3900X and Ryzen 7 3700X Review: Zen 2 and 7nm Unleashed
AMD's Ryzen 3000 series promises more performance and value via the benefits of the 7nm process and Zen 2 microarchitecture.
That should include PCIe interfaces on top of a lot of other I/O. I'm not sure if this helps.
AMD still sells Zen 2 based kit (brand new) today, though I think it's all been migrated to TSMC (monolithic on N6/N7).
I saw this post earlier -- I'm not sure if this is the FDX variant specifically, but Zen 2's I/O die was built in Glo Fo 12nm:
AMD Ryzen 9 3900X and Ryzen 7 3700X Review: Zen 2 and 7nm Unleashed
AMD's Ryzen 3000 series promises more performance and value via the benefits of the 7nm process and Zen 2 microarchitecture.
That should include PCIe interfaces on top of a lot of other I/O. I'm not sure if this helps.
AMD still sells Zen 2 based kit (brand new) today, though I think it's all been migrated to TSMC (monolithic on N6/N7).
I believe that is a GF 14nm variant versus GF FDX SOI?
Xebec
Well-known member
You are correct -- Zen 2 launched in 2019; and as 12FDX got delayed ("no rush for 12FDX" around the time GloFo dropped 7nm), the earliest tape outs were expected late 2020.
GF's own finfet offering is its own biggest competitor. Extremely little 3rd party IP, because 12LP design is much more similar to other finfet design flows on the market. The "gold mine" controlled chip ASICs aren't even there, while they seem to be the natural 12FDX market: just a lot of relatively high speed PHYs, which are frequently idling.
Lack of PCI(e) support would be huge blocking point as nowadays it is required even in automotive and industrial applications. I am sure they support fast serdes. So i am sure there are options, probably just (almost) nobody asked 
www.design-reuse.com
PCIe 2.0 PHY in GF (40nm, 28nm, 22nm, 12nm)
The multi-channel Synopsys PHY IP for PCI Express® 2.1/1.1 includes Synopsys’ high-speed, high-performance transceiver to meet today’s demands for ...
www.design-reuse.com