Is there any new about when Intel will release CPUs without the current vulnerabilities?

[psaez84]

Hi

Is there any new about when Intel will release CPUs without the current vulnerabilities?

Does coffe lake cpus have the same problem or in less proportion than previous generation?

Thank you

 

[TwilightRavens]

So far all the generations that have been affected that I am aware of are from Coffee Lake all the way back to even the Pentium 4 Prescott's, though it could indeed be even further than that. Also I read an article somewhere (I'm pretty sure there was a post on reddit /r/intel) that the upcoming Cannon Lake and Ice Lake CPU's will still be affected by this because they are too far along in production for them to stop and redesign the architecture from the ground up. So realistically speaking they won't have anything even close to being fixed on it until at least late 2019/early 2020 and that's being really optimistic, because Intel maps out their generation so far ahead of time, but possibly Tiger Lake will be the one that fully corrects everything for the most part. Like I said though I'm only quoting what I saw so take it with a grain of salt.

 

[gamerk316]

^^ That only covers Meltdown though; Specter is a much tougher beat, and short of getting rid of the branch predictor (enjoy the ~30-40% performance loss across the board) I don't see an easy architectural fix.

Throw in the issues with Intels Management Engine, and I get the sense a major redesign is on the Horizon. I wouldn't expect anything "new" until at least late 2020, if not 2021 as a result.

 

[TwilightRavens]

^^ That only covers Meltdown though; Specter is a much tougher beat, and short of getting rid of the branch predictor (enjoy the ~30-40% performance loss across the board) I don't see an easy architectural fix.

Throw in the issues with Intels Management Engine, and I get the sense a major redesign is on the Horizon. I wouldn't expect anything "new" until at least late 2020, if not 2021 as a result.

Yeah I was speaking from "best case scenario" perspective. But yeah you are right that does only cover Meltdown, Spectre is mostly in the microcode and software such as the BIOS, Windows and like you said Intel's Management Engine. But realistically Haswell i5's and newer will "likely" only see a reduction of 5%-10% in performance, that's just per core and multithreaded performance. The latest Microsoft update gimped SSD speeds by up to 65% some people are saying. Now Ivy bridge and earlier I'd expect between 15%-50% reduction in just per core performance, that's not taking into consideration cache, RAM and all the other good stuff.

 

[gamerk316]

^^ Which is why I've turned off Windows update, as my 2600k is going to get slaughtered on Win 7.

 

[TwilightRavens]

^^ Which is why I've turned off Windows update, as my 2600k is going to get slaughtered on Win 7.

Can't say I blame you, to be honest I think these exploits only really affect a really niche market segment.

 

[warm pancake]

^^ Which is why I've turned off Windows update, as my 2600k is going to get slaughtered on Win 7.

Not sure if it helps but I updated my 2640m and haven't felt any performance hit at all. Granted the laptop has always been snappy and has Win 10. Is Windows 7 really that slow for you?

 

[dudeman509]

^^ Which is why I've turned off Windows update, as my 2600k is going to get slaughtered on Win 7.

Not sure if it helps but I updated my 2640m and haven't felt any performance hit at all. Granted the laptop has always been snappy and has Win 10. Is Windows 7 really that slow for you?

Yeah, I don't notice any difference in day-to-day performance with my crappy i5-4210u

 

[warm pancake]

^^ Which is why I've turned off Windows update, as my 2600k is going to get slaughtered on Win 7.

Not sure if it helps but I updated my 2640m and haven't felt any performance hit at all. Granted the laptop has always been snappy and has Win 10. Is Windows 7 really that slow for you?

Yeah, I don't notice any difference in day-to-day performance with my crappy i5-4210u

That's the trouble with the hype around this. People overstate how much of a hit you will actually feel. It's easy to see a figure "5%-20% performance hit" and assume it's huge. But then you experience it for yourself and realize it's not going to make day to day life unbearable. With exceptions of course.

 

[TwilightRavens]

Yeah I can verify on my i7-5775C rig in benchmarks I (maybe) lost 1%-3% but that may be a margin of error, plus I've overclocked it 200MHz more since before I had the update. My wife's 4690K has not had any noticeable effect on games or productivity applications. My laptop with the Ivy Bridge Pentium 2020M feels about the same as it did, though its disk performance went down about 15% but meh, not like I do any read/write intensive stuff anyway. And lastly my old tower with a Kentsfield Xeon X3230 (Core 2 Quad Q6700 equivalent) does feel a bit slower than it used to, but what more can you expect out of a 2006 quad core CPU lol, but that one runs Ubuntu so it always seems to run smooth anyway.