CPU and Cache tab. The bench tab seems to work as well and will let you bench your CPU but I don't know if it is accurate.
What does not
Mainboard, Memory, SPD, and Graphics tabs do not have any values in the fields. Tabs show correctly other than it isn't able to collect information.
What was not tested
Stress tests and upload results were not tested.
CPU-Z version 1.81.1
|Operating system||Test date||Wine version||Installs?||Runs?||Used|
|Show||Arch Linux||Apr 20 2019||4.6-staging||Yes||Yes||No||Silver||Roman Stingler|
|Current||Ubuntu 17.10 "Artful" amd64 (+variants like Kubuntu)||Nov 11 2017||2.20-staging||Yes||Yes||No||Bronze||vsteel|
|Show||openSUSE Tumbleweed (rolling release)||May 10 2017||2.7||Yes||Yes||Bronze||Hunter Nightblood|
|Show||CentOS 6.6||May 25 2015||1.7.43||Yes||Yes||Bronze||Artem S. Tashkinov|
|Show||Ubuntu 15.04 "Vivid" amd64 (+ variants like Kubuntu)||May 10 2015||1.7.38||N/A||No||Garbage||an anonymous user|
|Bug #||Description||Status||Resolution||Other apps affected|
|7876||CPU-Z cannot load cpu-z.sys due to missing ntoskrnl implementation||CLOSED||WONTFIX||View|
|11908||CPUZ shows no informations||NEW||View|
|13254||CPUZ 1.45 crashes when trying to select a different tab via keyboard||CLOSED||FIXED||View|
|25086||Multiple games and applications need kernel32.GetLogicalProcessorInformationEx implementation (CPU-Z 1.72, Splinter Cell: Blacklist, Adobe CC 2015, Kontakt 5)||CLOSED||FIXED||View|
|47068||fixme:ntdll:create_logical_proc_info Only 64 Threads are usable||UNCONFIRMED||View|
Run the program in Win95, 98 or ME mode and it will work and show basic information.
This stuff won't get fixed in near future due to kernel drivers with direct hardware access.
See bugs.winehq.org/show_bug.cgi?id=7876 for some patches to play with.
Though no useful information is returned due to restricted API/instruction usage.
Thanks to Anastasius Focht for this.