SiS´s updated chipset roadmap
Mycom PC Web informed on SiS Intel and AMD roadmap. As we get it, SiS doesn´t intend to cede to Intel and focuses on PCI Express 16x instead of AGP as well as on the support of dual-channel DDR400/DDR-II 677/533/400.
North bridge |
SiS 655FX |
SiS R658 |
SiS R659 |
SiS 661FX |
SiS 656 |
SiS 656FX |
SiS 662 |
CPU socket |
Socket 478 |
Socket 478 / LGA775 |
FSB |
800 / 533 / 400 |
533 / 400 |
800 / 533 / 400 |
1067 / 800 / 533 / 400 |
Hyper Threading |
Yes |
Memory interface |
DDR 400 / 333 / 266 |
PC1066 / 800 |
PC1066 / 1200 |
DDR 400 / 333 / 266 |
2 x DDR400, 2 x DDR-II 677 / 533 / 400 |
Max. memory |
4GB |
n/a |
8GB (?) |
3GB |
4GB |
Graphics interface |
AGP8x |
AGP8x / Real256E |
PCI Express 16x |
PCI Express 16x / DX9 Graphics |
South bridge |
SiS963 |
SiS964 |
SiS965 |
SiS966 |
SiS965 |
Int. bus |
MuTIOL 1G |
MuTIOL 2G |
MuTIOL 1G |
SATA |
n/a |
2 x SATA 150 |
4 x SATA 150 |
ATA |
2 x 133 / 100 /66 |
USB |
6 x USB 1.1 / 2.0 |
8 x USB 1.1 / 2.0 |
PCI Express |
n/a |
2ch |
4ch |
2ch |
Other |
6ch AC´97 / LAN / Modem / IEEE1394 |
6ch AC´97 / LAN / Modem |
6ch AC´97 / LAN / Modem / 802.11b |
High Definition Audio / GbE |
6ch AC´97 / LAN / Modem / 802.11b |
Avail. |
Available |
March 2004 |
Q4 2004 |
June 2004 |
Along with the promotion of SiS655TX and SiS655FX chipsets that are the obvious rivals of Intel´s i865 series, the company is going to further advance its proprietary projects, including SiS659 supporting 4-channel RDRAM. SiS662, the simplified version of SiS656 (w/o ECC), is to arrive closer to the Summer. Closer to the this year-end, we should see the SiS656FX supporting DDR2-800 (given this memory is available). And company´s AMD chipset roadmap looks like this:
North bridge |
SiS 748 |
SiS 741 |
SiS 755 |
SiS 756 |
SiS 760 |
SiS 761 |
Socket / interface |
SocketA |
Hyper Transport |
FSB |
400 / 333 / 266 |
800 |
1GHz (?) / 800 |
800 |
1GHz (?) / 800 |
Hyper Threading |
N/a |
Memory interface |
DDR 400 / 333 / 266 |
N/a |
DDR 400 (?) / 333 |
DDR-II 533 (?) / 400 |
Max. memory |
3GB |
N/a |
(?) |
(?) |
Graphics interface |
AGP8x |
AGP8x / Real256E |
AGP8x |
PCI Express 16x |
AGP8x / Ultra256E |
PCI Express 16x / DX9 Graphics |
South bridge |
SiS963 |
SiS964 |
SiS964 |
SiS965 |
SiS964 |
SiS965 |
Interface |
MuTIOL 1G |
SATA |
N/a |
2 x SATA 150 |
N/a |
2 x SATA 150 |
N/a |
2 x SATA 150 |
ATA |
2 x 133 / 100 / 66 |
USB |
6 x USB 1.1/2.0 |
8 x USB 1.1/2.0 |
6 x USB 1.1/2.0 |
8 x USB 1.1/2.0 |
6 x USB 1.1/2.0 |
8 x USB 1.1/2.0 |
PCI Express |
N/a |
Available |
N/a |
Avail. |
Other |
6ch AC´97 / LAN / Modem / IEEE1394 |
6ch AC´97 / LAN / Modem |
6ch AC´97 / LAN / Modem / 802.11b |
6ch AC´97 / LAN / Modem |
6ch AC´97 / LAN / Modem / 802.11b |
Avail. |
Available |
March 2004 |
June 2004 |
June 2004 |
It seems that SiS755 will become the only SiS solution with Socket 940 support and further models will support Socket 939. SiS965, expected in March 2004, will support MuTIOL 1G, 8 x USB 2.0, 4 x ATA133, 4 x SATA w/RAID, 2 x PCI Express x1, 10/100/1000 LAN, AC97 2.3.
Closer to August we should expect SiS966 supporting MuTIOL 2G, 8 x USB 2.0, 4 x ATA133, 4 x SATA w/RAID, 4 x PCI Express x1, 10/100/1000 LAN, Intel Azalia/AC97 2.3.
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