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-   -   [TH] New AMD Side Channel Attacks Discovered, Impacts Zen Architecture (https://www.overclock.net/forum/225-hardware-news/1743498-th-new-amd-side-channel-attacks-discovered-impacts-zen-architecture.html)

WannaBeOCer 03-12-2020 10:36 AM

Quote:

Originally Posted by Liranan (Post 28364792)
The problem with Netburst and Bulldozer was also clock speed, so, why don't you do some research into these throttling chips? Intel's 10nm is so bad it barely matches the previous gen and all we've had so far are mobile chips because yields are terrible and performance is awful.

Bulldozer currently has the record for clock speed. The issue with Bulldozer were shared resources not clock speed. Again Intel's Ice Lake is as secure as AMD's Zen. We'll see more of Intel's 10nm Ice Lake's in a few months with their Xeon chips.

https://hwbot.org/benchmark/cpu_frequency/halloffame

https://www.anandtech.com/show/15213...intel-ice-lake

bigjdubb 03-12-2020 10:38 AM

I don't think the performance is awful, but it's not exactly a great improvement over the last gen parts. Very likely to stop feeling like flagship performance once we get the new mobile parts from AMD though.

ku4eto 03-12-2020 01:18 PM

Quote:

Originally Posted by WannaBeOCer (Post 28364660)
Pretty sure the upcoming Ice Lake based Xeon's are 2Ghz+ up to 38 cores.

Haha, lol.
The EPYC 64C runs at 2.15Ghz.

Hueristic 03-12-2020 04:19 PM

All I gotta say is the heading for the driver issues is freaking hilarious, I would never expect to see such a technical description of the issue on a fortune 500 company's site.


https://www.amd.com/en/corporate/product-security

Quote:

Screwed Drivers

8/11/19

Anyhoose this is another reminder to run noscript. Its a perfect attack vector and apparently now we have JS that can run sidechannel attacks.
Nothing new to see here the vectors opened up from parallel processing are going to continue to give us exploits its just the nature of the beast apparently.

rdr09 03-13-2020 12:11 AM

Quote:

Originally Posted by Hueristic (Post 28365172)
All I gotta say is the heading for the driver issues is freaking hilarious, I would never expect to see such a technical description of the issue on a fortune 500 company's site.


https://www.amd.com/en/corporate/product-security




Anyhoose this is another reminder to run noscript. Its a perfect attack vector and apparently now we have JS that can run sidechannel attacks.
Nothing new to see here the vectors opened up from parallel processing are going to continue to give us exploits its just the nature of the beast apparently.

It's like they are advertising to just buy a cheaper RX 5700 and flash it with a 5700XT BIOS.

Hueristic 03-13-2020 11:29 AM

Quote:

Originally Posted by rdr09 (Post 28365552)
It's like they are advertising to just buy a cheaper RX 5700 and flash it with a 5700XT BIOS.

Not like the old days though everything is binned now, flashing an 850xt to a 850xtPE was the best. :D

speed_demon 03-13-2020 11:53 AM

How about unlocking cores via mobo options. My buddy's prebuilt AMD system was able to do that using a modded BIOS we found on a random website (lol).

m4fox90 03-13-2020 01:41 PM

Quote:

Originally Posted by Liranan (Post 28364792)
The problem with Netburst and Bulldozer was also clock speed, so, why don't you do some research into these throttling chips? Intel's 10nm is so bad it barely matches the previous gen and all we've had so far are mobile chips because yields are terrible and performance is awful.

He's got all the research he needs provided weekly by Intel's PR team with the check.

Hueristic 03-18-2020 07:55 PM

Quote:

Originally Posted by speed_demon (Post 28366184)
How about unlocking cores via mobo options. My buddy's prebuilt AMD system was able to do that using a modded BIOS we found on a random website (lol).

Yeah, free cores were the best, my 1605T served me well until very recently and would still be in service if AM3+ multi pci-e x16 unlocking boards were not so scarce..

Kaltenbrunner 03-23-2020 02:51 PM

Where's the matrix so I can upload all computer science to my brain overnight


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