Upcoming patches will slow down all Intel CPUs?
5 - 30% ?
Wednesday, January 3, 2018 by anotherside | Discussion: Personal Computing
Not sure what to make of this:
https://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/
AMD Ryzen seems to be the winner if patches are selective and only affect Intel CPUs.
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Reply #62 Tuesday, January 23, 2018 7:11 PM
Intel: A major cock-up, so glad I went AMD for this new build.
Reply #63 Tuesday, January 23, 2018 9:14 PM
I haven't built an Intel based computer for the past 20 years. AMD may not always be the best, but the are certainly far far cheaper and have nearly the same performance in most cases.
Reply #64 Wednesday, January 24, 2018 11:31 AM
I haven't built an Intel based computer for the past 20 years. AMD may not always be the best, but the are certainly far far cheaper and have nearly the same performance in most cases.
I followed a link on 'Tom's Hardware' and the article had various benchmarks which suggests that many of AMD's Ryzen series beat similarly rated Intel performers. Frankly, though, I don't much care about which manufacturer has the fastest CPUs. I'm happy with what I've got and am looking forward to firing up this AMD beastie once I have all the bits n' pieces to make it positively the best build I've ever done.
Reply #65 Wednesday, January 24, 2018 12:36 PM
Hate to be "that guy". but...
"OH no the NSA's back door got found!" lol
Totally have no idea if that bug could be used for a backdoor. just thought it was ironic that a CPU level security flaw went "UN-noticed" for 10+ years? maybe they just didn't know....riiiiight 
*takes out spoon.... stirs the pot"
Reply #66 Wednesday, January 24, 2018 2:49 PM
Maybe Intel wants to make patches opt-in instead of opt-out. Intel likely doesn't want new CPUs tested with patches because they will look bad compared to old CPUs that were tested without patches.
The question is if Intel can do something with the current Core design. As for Spectre all CPU vendors need to redesign silicon to avoid performance penalty from software workarounds.
It will take years before we have CPUs which are safe without performance-sucking patches.
I'm torn between "I don't care, I want max performance from my hardware" and "it's better to be safe than sorry".
Right now I don't think there are practical exploits that one has to be very concerned about, but I don't really know. Browsers should be patched against Spectre.
This is just a headache, no idea to think too much about this - it's just a bad situation. I guess we could call it a lose-lose situation.
Reply #67 Wednesday, January 24, 2018 11:10 PM
Hate to be "that guy". but...
"OH no the NSA's back door got found!" lol
Totally have no idea if that bug could be used for a backdoor. just thought it was ironic that a CPU level security flaw went "UN-noticed" for 10+ years? maybe they just didn't know....riiiiight
*takes out spoon.... stirs the pot"
Hehe,... and efficiently patching said backdoor will just get the NSA bursting through the front door, jackboots 'n all. Oh wait a minute! What about the side doors? Probably for the C.I.A., right?
I do have to wonder, though, why it took 10 years to reveal these 'exploits'..... and was the Google employee tipped off about them or did he just get lucky? Like I said somewhere before, I smell fish.
Reply #68 Thursday, January 25, 2018 3:14 AM
i think chrome just got patched but you could have enabled a flag before.
and i think it's more like 20 years rather than 10? anything intel but itanium is vulnerable or some such. it's not just the google guy.. and they are building on someone else's research / speculation 
(last year or the year before i think. the kaiser stuff)
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Reply #61 Tuesday, January 23, 2018 4:11 PM
Whelp: Torvald's Take
Gulp: Intel's 1-22-18 advice