Wonder if dmidecode could be updated to include more cpu details, the cache features and other flags are limited.

        Version: Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz
        Voltage: 0.8 V
        External Clock: 100 MHz
        Max Speed: 2900 MHz
        Current Speed: 2300 MHz
        Status: Populated, Enabled
        Upgrade: Other
        L1 Cache Handle: 0x004C
        L2 Cache Handle: 0x004D
        L3 Cache Handle: 0x004E
        Serial Number: To Be Filled By O.E.M.
        Asset Tag: To Be Filled By O.E.M.
        Part Number: To Be Filled By O.E.M.
        Core Count: 4
        Core Enabled: 4
        Thread Count: 8