ATi

SB400 : 4 ATA 133, 4 S-ATA, USB 2.0 x 8, PCI, AC’97, RAID, PCIE NB Link,
Sampling Now, Production Q4’04

SiS

966 : MuTIOL 2G, 10 x USB 2.0, 4 PCIE x1, 10/100/GbE, Hi Def. Audio/AC’97, 4
ATA-133, 4 SATA, Smart Clock Gating, Sampling Q3, Production Q4’04

ULi

M1566 : HyperTransport, PCIE, S-ATA AHCI, USB 2.0, RAID, UAA/AC’97, IrDA, 10/100
MAC, Sampling Q3’04, Production Q4’04
M1569 : HyperTransport, 4 PCIE x1, PCIE x16, S-ATA AHCI, USB 2.0, RAID, UAA/AC’97,
IrDA, 10/100/GbE MAC, Sampling Q4’04, Production Q1’05
M1573 : For ATi PCIE Chipsets, PCIE I/F to NB, S-ATA, USB 2.0, UAA/AC’97, 10/100
MAC, RAID, Sampling Now, Production : TBD
M1575 : For ATi PCIE Chipsets, PCIE I/F to NB, S-ATA, USB 2.0, UAA/AC’97,
10/100/GbE MAC, RAID, 4 PCIE x1, Sampling Q4’04, Production : TBD

VIA

VT8251 : Ultra V-Link 1GB, 4 S-ATA, 4 ATA-133, 2 PCIE, 8 x USB 2.0, 10/100
Ethernet, UAA, Production : Q3’04

It is interesting to see that ATi is using SB from ULi to pair up with their
NB. Also M1566/69 and M1573/75 share pretty similar features except that the
link to the NB is different, M1566/69 is using HyperTransport while M1573/75 is
using PCI Express. SiS966 sports a nice feature call smart clock gating which
probably make overclocking easier.

ATi

SB400 : 4 ATA 133, 4 S-ATA, USB 2.0 x 8, PCI, AC’97, RAID, PCIE NB Link,
Sampling Now, Production Q4’04

SiS

966 : MuTIOL 2G, 10 x USB 2.0, 4 PCIE x1, 10/100/GbE, Hi Def. Audio/AC’97, 4
ATA-133, 4 SATA, Smart Clock Gating, Sampling Q3, Production Q4’04

ULi

M1566 : HyperTransport, PCIE, S-ATA AHCI, USB 2.0, RAID, UAA/AC’97, IrDA, 10/100
MAC, Sampling Q3’04, Production Q4’04
M1569 : HyperTransport, 4 PCIE x1, PCIE x16, S-ATA AHCI, USB 2.0, RAID, UAA/AC’97,
IrDA, 10/100/GbE MAC, Sampling Q4’04, Production Q1’05
M1573 : For ATi PCIE Chipsets, PCIE I/F to NB, S-ATA, USB 2.0, UAA/AC’97, 10/100
MAC, RAID, Sampling Now, Production : TBD
M1575 : For ATi PCIE Chipsets, PCIE I/F to NB, S-ATA, USB 2.0, UAA/AC’97,
10/100/GbE MAC, RAID, 4 PCIE x1, Sampling Q4’04, Production : TBD

VIA

VT8251 : Ultra V-Link 1GB, 4 S-ATA, 4 ATA-133, 2 PCIE, 8 x USB 2.0, 10/100
Ethernet, UAA, Production : Q3’04

It is interesting to see that ATi is using SB from ULi to pair up with their
NB. Also M1566/69 and M1573/75 share pretty similar features except that the
link to the NB is different, M1566/69 is using HyperTransport while M1573/75 is
using PCI Express. SiS966 sports a nice feature call smart clock gating which
probably make overclocking easier.