At the CeBIT the Taiwanese chip forge SiS shows the first prototype of a DDR400 chipset for Pentium 4 processors. At the same time the manufacturer presents three AGP 8x graphics chips, the SiS330 series.
Apart from DDR400 memory the SiS648 also supports AGP 8x. SiS supported the mainboard shown in operation at the CeBIT with a test sample of PC400 memory modules from Samsung. Here the memory clock rate was 200 MHz (400 MHz DDR).
During the demonstration the system was running stable und did not crash. But this demonstration rather has to be judged to be a PR event because of the missing DDR400 memory specifications by JEDEC. Serious statements on stability and performance can not be given until the memory gets standardised.
The SiS963 southbridge stands at the northbridges side. It is connected to the SiS648 via MuTIOL with a transfer bandwidth of 1 Gbyte/s. Predecessors like SiS962 and SiS961 only managed 509 Mbytes/s data transfer. The features of the SiS963 southbridge are: Ultra-ATA/133, USB 2.0, and IEEE-1394A support.
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