AMD Reveals More Zen CPU Details, Officially Known As Ryzen, No Linux Details Yet
Written by Michael Larabel in AMD on 13 December 2016 at 04:18 PM EST. 93 Comments
AMD --
AMD's Zen New Horizon event is going on right now. For those missing out on the livestream, here are my live details so far on Zen, or now officially known as Ryzen.

Here are my highlights, check back for updates.

- They have "met or exceeded" their goals at AMD for Zen. Beating performance goals of 40%+ instruction per clock improvement.

- AMD's Zen desktop "Summit Ridge" processors are indeed named Ryzen.

- AMD Ryzen processors will be out in Q1'2017. The Ryzen CPUs will have 8 cores, 16 threads via SMT, and the highest-end Ryzen Summit Ridge CPU will have a 3.4GHz clock speed or above. There will be a 4MB L2 cache and 16MB L3 cache. Boost clock speeds are not yet revealed for these AM4 CPUs.

- AMD Zen server processors will be out in Q2'2017 while the notebook APU (Raven Ridge) isn't coming until the second half of the year.

- AMD claims the 3.4+ GHz Ryzen can run slightly faster than a Core i7 6900K while having lower power consumption (95 Watt TDP of the Ryzen part shown during the demo).

- AMD SenseMI technology includes "true machine intelligence" and smart prefetch with Ryzen. There are also "Precision Boost" and "Pure Power" features. (I would anticipate there would be some OS integration needed, haven't seen any Linux kernel patches in this area yet for Zen.)

No mention yet of Linux during the presentation. But at least they are using some open-source apps for demonstration like Handbrake and Blender, albeit from Windows 10. While we have seen some more Zen patches queued up for Linux 4.10, we haven't yet seen any patches yet about the "SenseMI" features for Linux (particularly concerned about boosting and the power-savings functionality under Linux given no patches there yet that I've seen), working to get some comment from AMD about that for getting a better idea for the Linux support of Ryzen at launch come next quarter.

Update: The event is over. No mention of Linux, but Ryzen looks super exciting anyhow, assuming it will play nicely on Linux. Stay tuned for AMD Ryzen benchmarks on Linux at launch in Q1.
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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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