topic Re: i5-1345U speculative execution security in Mobile and Desktop Processors

i5-1345U speculative execution security

windows_guru — Wed, 19 Feb 2025 19:18:45 GMT

My Dell has a i5-1345U CPU stuffed into it. I have 64GB of RAM in the machine.

Spectre and Meltdown seems to be related to speculative execution which I am aware Intel designed to perk up CP performance

https://en.wikipedia.org/wiki/Spectre_(security_vulnerability)

The problems affect the Pentium 4 and above, not a good sign. My CPU is slightly more recent but being cynical I am fearful that more problems are likely.

There are many variants of Spectre that had to be mitigated which I believe is why E cores are being used as these can be more easily firewalled.

The P cores are more questionable due to the hyperthreading design that has been at fault in earlier processors.

Re:i5-1345U speculative execution security

RandyT_Intel — Fri, 21 Feb 2025 06:50:21 GMT

Hi windows_guru,

I’m unable to comment on the information you provided right now but let me coordinate this with our team. So far, here is the information I have found for you. Please let me know if this provides any insights on your concerns. Don’t worry, once I have more additional information, I will get back to you as soon as possible.

How to Get Information on Spectre Meltdown Processor Vulnerability

Thank you for your patience and understanding.

Randy T

Intel Customer Support Technician

Re: i5-1345U speculative execution security

RandyT_Intel — Wed, 26 Feb 2025 23:01:43 GMT

Hi windows_guru,

I wanted to check if you have reviewed the information I provided above. Please let me know if you still need further assistance, so I can determine the best course of action moving forward.

Randy T

Intel Customer Support Technician

Re:i5-1345U speculative execution security

RandyT_Intel — Mon, 03 Mar 2025 21:52:06 GMT

Hi windows_guru,

I have not received a response from you, I will proceed with closing this case. Please note that it will no longer be monitored.

If you need further assistance or wish to report any vulnerabilities in the future, you can visit the following link: Reporting a Vulnerability to Intel

Randy T

Intel Customer Support Technician

Re: i5-1345U speculative execution security

windows_guru — Tue, 04 Mar 2025 00:49:07 GMT

I have looked at many vulnerability issues driven by fear of ransomware and worse

The speculative execution goes back to the days of the Pentium and the Netburst design.

https://support.microsoft.com/en-us/topic/kb4457951-windows-guidance-to-protect-against-speculative-execution-side-channel-vulnerabilities-ae9b7bcd-e8e9-7304-2c40-f047a0ab3385