Hello
I heard/read that Windows 8.1 64-bit needs the following CPU support:
- CMPXCHG16b
- LAHF/SAHF
- PrefetchW
(http://windows.microsoft.com/en-us/windows-8/preview-faq)
CMPXCHG16b and LAHF/SAHF I can find in the Aida64 CPU Instructions set list, but not PrefetchW.
Does it have another name or ist it missing ?