Talk:Zen 2

Zen+ vs Zen 2

It appears the Zen successor's official name is Zen 2, rather than Zen+. Should be rename this article. Dbsseven (talk) 22:41, 20 April 2017 (UTC)

References

@Dbsseven: Page moved. -- intgr [talk] 23:32, 21 April 2017 (UTC)

No, this is not correct. See OP in paragraph below, which is correct. Confusion arises since AMD calls Zen+ Refresh its "2nd Generation" and "Ryzen 2". They also numbers the Zen+ Refresh processors as the new 2000 series, where the recently released APUs for mobiles are the first (2700U and 2500U). All of this has nothing to do with "Zen 2", which is AMDs next major step forward in arcitechture and die shrink. Zen+ Refresh will be released in early 2018 (around February/March) and be on 12nm dies. Zen 2 will be released in 2019 and be on 7nm dies. Official names are yet TBA but some sources from AMD itself verifies the big lines, like here: https://www.eteknix.com/amd-roadmap-leak-shows-2nd-gen-ryzen-coming-q1-2018/ Petosirisus (talk) 17:52, 10 December 2017 (UTC)

@Petosirisus: Note that you're replying to a comment from April, when barely anything was known about AMD's future Zen plans. See the section below. -- intgr [talk] 21:39, 10 December 2017 (UTC)

At the time the article was wrong and the original comment in this section had false information and unreliable link, which both were still undisputed. Leaving it undisputed would not be right in my opinion, since people might get confused or even rely on the false information. I also pointed to the correct information below. Petosirisus (talk) —Preceding undated comment added 03:39, 19 January 2018 (UTC)

Zen 2 is not Zen+ !

Zen+ will be a better Zen with some error in silicium corrected and the same production as Zen is now (14 nm), starting in 2018 (maybe in Q1 like Zen). Zen 2 will be the successor of Zen+/Zen in 7 nm. The production of 7 nm from Globalfounderies will then (hopefully) work, risk production will start in 2H 2018.

So the complete article is wrong and should be corrected. Thanks in advance -- 84.157.23.99 (talk) 12:31, 19 August 2017 (UTC)

Your first linked article seems to consider them the same: "Laut einem Bericht von PC Games Hardware arbeitet AMD daher längst an »Zen 2« oder »Zen+«" and the 2nd one does not mention Zen+ at all. In any case we would need a source with more detailed information about Zen+ to split the article, to satisfy WP:N. -- intgr [talk] 19:25, 20 August 2017 (UTC)

So I found some sources that now clearly distinguish between "Zen+" (Pinnacle Ridge, 2018 release, possibly based on 12nm tech) and "Zen 2" (2019 release based on 7nm): gamersnexus.net techpowerup.com (and probably outdated: kitguru.net). Although some of it might be rumors/conjecture/speculation. wccftech also said in May "Zen+ is merely a placeholder code name. Ryzen desktop processors are code named Summit Ridge, their successor is slated for a 2018 debut and is code named Pinnacle Ridge. The successor to the Zen core itself is still unnamed publicly." Maybe it's a better idea to use the confirmed code name "Pinnacle Ridge" until marketing officially announces it.

There is an interview with an AMD rep explicitly stating that there would be a revised Zen product, to be followed by an updated microarchitecture. I presume this means Zen+ and Zen 2 respectively. However, he doesn't say so explicitly, so I'm hesitant to go assigning names myself. Dbsseven (talk) 21:27, 1 December 2017 (UTC)

Another question is, if Pinnacle Ridge will be a minor refresh over Zen, should it be kept together with the Zen article? -- intgr [talk] 16:17, 20 November 2017 (UTC)

Yes, that'd be natural since it's the same architecture. Petosirisus (talk) 03:43, 19 January 2018 (UTC)

And while Pinnacle Ridge might be a minor refresh of Zen, it still may warrant it's own article. On the Intel size for comparison, Skylake, Kaby Lake, and Coffee Lake are all the same core design, just revised process tech, and they each get their own articles. I guess it'll depend on it's notability as an independent product. Dbsseven (talk) 21:30, 1 December 2017 (UTC)

References

How nanometer silicium atom diameter ?

--GalaxHazard (talk) 17:25, 6 May 2018 (UTC)

How many atoms in gates of Zen 2 microarchitecture ?--GalaxHazard (talk) 17:30, 6 May 2018 (UTC)

Ref for instructions per cycle?

I've just boldly deleted an outdated sentence from the lede, and reorganized that section.

I changed the bit about IPC to "Zen 2 delivers about 15% more instructions per clock than Zen" (because, impressive!). Now we need a cite for that. Is https://www.techradar.com/uk/news/amds-future-plans-for-crushing-intel-and-taking-over-the-world-with-zen-4-and-zen-5-revealed good enough? (I have no idea whether techradar.com is a Reliable Source.)

So ... further edits requested. Cheers, CWC 04:22, 17 March 2020 (UTC)

PCIe 4.0 as key change from Zen+ not mentioned

PCIe 4.0 as key change from Zen+ (PCIe 3.0) not mentioned. Btw in many references in names of those articles there is PCIe 4.0. Tomáš Jirka (talk) 12:14, 27 April 2021 (UTC)

Zenbleed (CVE-2023-20593)

Zen 2 CPUs appear to have a hardware vulnerability, discovered in July 2023 https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7008.html 2001:1530:1000:4BFE:790F:8BB2:49D:42CA (talk) 01:30, 31 August 2023 (UTC)