U both have Realtek audio... just different Realtek chipsets. The 8086 in the hardware id string identifies it as Realtek.
There is no such sound chip as Intel 82801... there's been a ton of discussion about this chipset..... even a STICKY or 2.
Sound chips are made by companies like Realtek, Cmedia, ADI SoundMAX, VIA and IDT (formerly Sigmatel).
JRMT, I gave u a link earlier for the sound driver.