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Guru3D.com » News » AMD Zen 2: Production yields for Ryzen 3000 Dies at 70 percent

AMD Zen 2: Production yields for Ryzen 3000 Dies at 70 percent

by Hilbert Hagedoorn on: 04/22/2019 08:08 AM | source: bitsandchips | 25 comment(s)
AMD Zen 2: Production yields for Ryzen 3000 Dies at 70 percent

Whenever you fab a wafer with CPU/GPU dies (or whatever they are fabbing), there are always defects. So if a wafer has 200 CPUs dies and 50 are functional, your yield is 25%. Well, the yield of the Zen 2-cores should be good, roughly 70 percent of the chips are fully functional. 

When AMD started original ZEN at 14nm, that was number was 80%, so they are not that far off in this early stage of fabrication. in a report from bitsandchips that number is 70 percent, which is not perfect, but good. The site relies on "unspecified sources" though, but has been proven reliable in the past.

The small die size of the Zen 2-core is estimated to be 88 mm² and seems to be the helping factor opposed to designing big monolithic chips. For example, Intel's XCC-Die with 28 cores, according to chatter, for a fully functional chip shows only 35 percent in yields. If you keep that thought in mind, the upcoming Threadripper also would yield at 70% as it uses the same CPU dies added together in a chiplet design. So that's twice the yield of Intel.

Unfortunately, there's no official word on clock frequencies and prices just yet, we can't wait to hear the official announcements, which are expected at the AMD keynote starting at Computex late in May.

  







« Photos and specifications of AMD 'Picasso' Ryzen 3 3200G Leaked · AMD Zen 2: Production yields for Ryzen 3000 Dies at 70 percent · Download: CrystalDiskInfo 8.7.0 »

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Fox2232
Senior Member



Posts: 11513
Joined: 2012-07-20

#5662063 Posted on: 04/22/2019 08:48 AM
"roughly 70 percent of the chips are fully functional" ...
This means that from remaining 30% with some form of defect, some are salvaged to lower core count products and some are dead. Not bad at all for price competitiveness.

Clawedge
Senior Member



Posts: 2599
Joined: 2006-09-02

#5662070 Posted on: 04/22/2019 09:30 AM
My body is ready!!!


And here is Intel


Clae
Junior Member



Posts: 1
Joined: 2019-04-22

#5662109 Posted on: 04/22/2019 12:51 PM
Just wanted to write that if threadripper uses 2 Zen2 dies, then wouldn't the yield be 0.7*0.7? Still better than Intel.

djmcave
Junior Member



Posts: 11
Joined: 2016-08-10

#5662128 Posted on: 04/22/2019 02:03 PM
Just wanted to write that if threadripper uses 2 Zen2 dies, then wouldn't the yield be 0.7*0.7? Still better than Intel.

I'm assuming they can test them out before assembling the dies together.. so you would only assemble healthy dies, so only the 0.7 yield matters.

Kool64
Senior Member



Posts: 1004
Joined: 2006-10-21

#5662129 Posted on: 04/22/2019 02:04 PM
It will be like Christmas in June/July when these chips are released. I can't wait.

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