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AMD Security Announcement on Fallout, RIDL and ZombieLoad Attack
AMD today responded to yesterday's news about the new serious Intel processor vulnerabilities. In this announcement, they confirmed that their processors are not susceptible to this kind of vulnerability.
Yesterday, researchers announced three new security exploits – Fallout, Rogue In-Flight Data Load (RIDL) and “ZombieLoad Attack”. Based on our internal assessment, we believe AMD products are not impacted by these new threats.
Below is our public statement, which you’ll also find available here.
At AMD we develop our products and services with security in mind. Based on our analysis and discussions with the researchers, we believe our products are not susceptible to ‘Fallout’, ‘RIDL’ or ‘ZombieLoad Attack’ because of the hardware protection checks in our architecture. We have not been able to demonstrate these exploits on AMD products and are unaware of others having done so.
You can read up all about it in this whitepaper, titled “Speculation Behavior in AMD Micro-Architectures.”
AMD Security Vulnerability – The Day After - Seems Financially Motivated - 03/14/2018 06:20 PM
It has been a day after the news broke on the acclaimed AMD Security Vulnerabilities. In this news-item, I wanted to recap and report on the current status and overview, as well as my look on things....
AMD Security Statement from CTO and SVP Mark Papermaster - 01/12/2018 03:30 PM
AMD have updated their web page and clarified a bit more on speculative_execution vulnerabilities with some additional details on current state of affairs and AMD actions....
Astyanax
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#5669908 Posted on: 05/16/2019 02:38 PM
Ryzen getting SMT4 isn't a thing.
Ryzen is per core ipc on par with intel, they are behind where clocks count.
Ryzen getting SMT4 isn't a thing.
Ryzen is per core ipc on par with intel, they are behind where clocks count.
vbetts
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#5669909 Posted on: 05/16/2019 02:40 PM
SMT4 isn't a thing.
Ryzen is per core ipc on par with intel, they are behind where clocks count.
Not sure what I would call it, but if we're referring to 4 threads per core Intel and IBM both have iterations of this.
SMT4 isn't a thing.
Ryzen is per core ipc on par with intel, they are behind where clocks count.
Not sure what I would call it, but if we're referring to 4 threads per core Intel and IBM both have iterations of this.
Astyanax
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#5669912 Posted on: 05/16/2019 02:48 PM
On cpu's that are designed for throughput at the expense of latency, not for high performance servers and consumer chips.
I think its called Coarse Grain Multithreading btw.
Not sure what I would call it, but if we're referring to 4 threads per core Intel and IBM both have iterations of this.
On cpu's that are designed for throughput at the expense of latency, not for high performance servers and consumer chips.
I think its called Coarse Grain Multithreading btw.
vbetts
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#5669913 Posted on: 05/16/2019 02:51 PM
Xeon Phi yes, but IBM only makes PPC based CPUs for high output server performance. In any case, the technology does exist.
On cpu's that are designed for throughput at the expense of latency, not high performance servers and consumer chips.
Xeon Phi yes, but IBM only makes PPC based CPUs for high output server performance. In any case, the technology does exist.
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Actually, he pointed out facts. You just don't like them. Difference.
Get it while you can, rumor is Threadripper is getting killed soon by AMD: https://www.forbes.com/sites/antonyleather/2019/05/15/amd-killing-off-threadripper-processors-suddenly-make-perfect-sense/
Don't think so, If AMD gonna have SMT4 then it makes perfect sense to limit TR parts to only SMT2.
This way EPYC parts will stay as the best performance parts.
Moreover, you are paying double the price per core on 2990WX vs Ryzen 2700($1700 vs 4*$220), so why would AMD loose all this extra money?