Does the PIII support RDRAM?

[UMMR]

Hello,
there are several Pentium III systems equipped with Rambus (RDRAM). Examples are the IBM IntelliStation M Pro 6866 (2 x Xeon 733 MHz, chipset i840, ECC) and the HP Kayak XM600 (i820 chipset, non-ECC).
"Rambus" is the name of the original manufacturer of these RAMs, Rambus Corp. The RDRAM has been invented in 1996 and presented that year at the annual ISSSC conference (you can still find the papers on the web). The Intel chipsets capables to support RDRAM are the original i820 Camino (1999), the more advanced i840, the i850 (first chipset for Pentium 4 systems) and the i860 for Xeon systems.
Paolo

[Marcin]

I also saw ASUS Socket 370 board with DDR banks.

[Tetrium]

[D.8080]

[Tetrium]

Another advantage the VIA P3 SDRAM chipsets had over the Intel ones (most noticeably the i815 and the 440BX) is the support for higher density SDRAM modules and (in the case of the i815) support for more then 512MB ram.

They aren't as fast as the i815 but imo they make up for that in flexibility

[frag_]

VIA Apollo Pro 133A can handle up to 4 Gb (socket 370 record holder, only with ECC modules, otherwise 2 Gb),
and was one of the first asynchronous chipset (can run memory at +33 or -33 MHz from fsb).
It was not so slow witn enabled 4-way memory bank interleave and 2-2-2-5 timings.
Also SiS 630 takes up to 3 Gb.

[Tetrium]

But iirc the Sis630 had crappy performance, even compared to the VIA P3 chipsets

[D.8080]

[Qwerty]