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post #10 of (permalink) Old 11-13-2019, 04:55 AM
tpi2007
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It's the second time (links below) I'm reading that the TSX bug affects Haswell, but it's worth noting that desktop and laptop users are probably not affected.

https://www.techpowerup.com/261097/i...-lake-included
https://www.extremetech.com/computin...security-fixes

Most people with Haswell based PC's will have TSX disabled because Intel found a bug in TSX back in 2014 and issued a microcode update to disable it. Only Xeons E7 based on Haswell-EX have the bug fixed and TSX enabled.

https://www.anandtech.com/show/8376/...eep-broadwelly

As to Broadwell, it's a bit unclear as to exactly what models have TSX enabled and disabled, but Broadwell-Y has the bug and is thus disabled. The i7 5650U and 5600U, i5 5350U and 5300U are supposed to have it working. Xeon-D has it working and so do the desktop i5-5675C and i7-5775C. Broadwell-E (HEDT) apparently doesn't have TSX enabled, there is nothing on it in the ARK pages.

So, when it comes to Haswell and Broadwell, it's a bit of a mess, especially Broadwell.



Last edited by tpi2007; 11-13-2019 at 04:58 AM.
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