Можно на js. Вот пример работы скрипта wmiadmin.js by Dmitry Khudorozhkov (только кусок)
Код:

Processors
Processor 1
Architecture x86
Availability Running / Full Power
Caption x86 Family 15 Model 43 Stepping 1
CPU status CPU Enabled
Current clock speed, MHz 2000
Current voltage 13
Device ID CPU0
Family Unknown (2)
Manufacturer AuthenticAMD
Maximum clock speed, MHz 2000
Name AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
Processor ID 178BFBFF00020FB1
Processor type Central Processor
Revision 11009
Role CPU
Socket type Socket 939
Status OK
Version Модель 11, Выпуск 1
Processor 2
Architecture x86
Availability Running / Full Power
Caption x86 Family 15 Model 43 Stepping 1
CPU status CPU Enabled
Current clock speed, MHz 2000
Current voltage 13
Device ID CPU1
Family Unknown (2)
Manufacturer AuthenticAMD
Maximum clock speed, MHz 2000
Name AMD Athlon(tm) 64 X2 Dual Core Processor 3800+
Processor ID 078BFBFF00020FB1
Processor type Central Processor
Revision 11009
Role CPU
Socket type Socket 939
Status OK
Version Модель 11, Выпуск 1