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To: mishedlo who wrote (56613)	10/4/2000 5:27:04 PM
From: mishedlo	Respond to of 93625

SLDRAM - A blast from the past from Uncle tom tomshardware.com Many memory manufacturers are putting their support behind SLDRAM as the long-term solution for system performance. While SLDRAM is a protocol-based design, just as RDRAM is, it is an open-industry-standard, which requires no royalty payments. This alone should allow for lower cost. Another cost advantage for the SLDRAM design is that it does not require a redesign of the RAM chips. Due to the use of packets for address, data and control signals, SLDRAM can operate on a faster bus than standard SDRAM – up to at least 200MHz. Just as DDR SDRAM operates the output signal at twice the clock rate, so can SLDRAM. This puts the output operation as high as 400MHz, with some engineers claiming it can reach 800MHz in the near future. Compared to DRDRAM, it seems that SLDRAM is a much better solution due to the lower actual clock speed (reducing signal problems), lower latency timings and lower cost due to the royalty-free design and operation on current bus designs. It appears that even the bandwidth of SLDRAM is much higher than DRDRAM at 3.2GB/s vs. 1.6GB/s Though Intel initially intended to support only DRDRAM in future chipsets, competing chipset manufacturers, memory manufacturers and pressure from end users may force them to include support for SLDRAM as well. If the marketplace can successfully influence Intel to provide this support, we may actually see a situation where the best technology wins over marketing hype.

To: mishedlo who wrote (56613)	10/4/2000 9:38:51 PM
From: Bilow	Read Replies (1) \| Respond to of 93625

Hi all; DDoDDRN: SiS with 4 DDR chipsets: SiS To Develop DDR Chipsets [6:17 pm] Rat Well, for now almost all the chipset manufacturers have already announced their chipsets with DDR SDRAM support. It looks as if SiS were the only one left aside. However, this in no way means that the company decided to leave out this profitable market segment. The only thing that seems to have prevented the company from rushing out with a new DDR solution is the SiS730S. SiS laid itself out trying to push this product forward that’s why a new announcement, could be kind of distracting at that moment. Anyway, according to OCWorkBench, SiS is currently also working on a chipset supporting DDR SDRAM. The chipset supporting AMD CPUs will be SiS 735, and the one for Intel processors – SiS 635. unlike SiS’ previous developments, these two fellows will pair up another chipset for I/O functions. But the market of integrated DDR chipsets is also a tasty bit for SiS. Here the company will introduce SiS 640 and SiS 740 chipsets, equipped with a new graphics core instead of the slow SiS 300. All the new DDR stuff is expected to come out in the beginning of 2001. ixbt-labs.com Hard to believe. All those engineers at SiS collecting pay for working on a project which is obviously doomed, along with all the other two dozen DDR chipsets. Sort of like welfare for engineers. -- Carl