<<Stripped down? exactly what core features exist on Intel/AMD chipsets that VIA doesn't claim? What did Iron Gate do that the KX133 didn't? How exactly was irongate more "complex"?>>
For one thing the VIA chipsets have half to one-fourth the buffering within their chipsets, which tends to be the single biggest difference. The southbridges were cut down even more, especially when you consider the whole "VIA/SB Live! bug" was from a stripped down PCI design. The backbone of communication between north-south bridges tends to be thinner on VIA designs, too. The pinouts of the chipsets tend to be fewer on VIA, SiS, and ALi chipsets; fewer pins means simpler layout for motherboard makers. The simple truth is that these chipset makers have room to make money on the margins of cost between their own chipset design and that of AMD/Intel.
<<The point was everyone was expecting explicit support.>>
No, actually they were not. The 133fsb Thunderbirds did not even exist at the time, so there was never a credible reason to believe they would support 133fsb. AMD had to release the specifications for the new bus before VIA would have been able to do a 133fsb design.
<<((The KT266A was a total redesign whereas the KT266 was an early design of a DDR-compatible chipset. The KT266 and KT266A share model numbers but not much else.))
LOL... Completely contrary to anything I've read. Can you or anyone back this up?>>
You haven't looked very far then. You can save us all time by posting links to where you got the idea that these were the SAME design only rebadged. The onus is on your original claim that they were identical. VIA claims to have improved the memory controller and tightened their design specifications, obviously in an attempt to outperform the SiS735 chipset. Funny how the KT266A's release seems to have made the SiS735 obsolete.
Quote from Anand: "The VT8366A (the original KT266 North Bridge was the VT8366) has two major enhancements: an improved memory controller and deeper internal buffers."
link
<<There's been exactly one complaint (about PCI IDE read performance being lower than write performance for some odd reason) thats been officially acknowledged that the 415 didn't resolve AFAIK. I couldn't even begin to list the ones about VIA's 266a.>>
You have it backwards, WRITE performance in the nForce chipset is crippled. Not just crippled, but restricted to ATA33 speeds of 20MB/sec.
<<As for my comment - well I've owned about five boards with VIA based Athlon chipsets, each of them from Asus, Abit or MSI. All but one had serious issues, from performance to that funky IDE/LIVE! issue to other IDE controller related issues to random lockups related to the 4in1 drivers. It's also ridiculous to have to put up with phantom "SCSI" devices that device manager detects when none exists. All my Asus/Abit/MSI boards that weren't VIA performed relatively... Win9x issues notwithstanding.>>
1. Asus, Abit, and MSI have had their troubles on different motherboards, just like every other manufacturer.
2. 4in1 drivers have resolved all of the other issues
3. phantom "SCSI" devices are the add-on ATA100 controllers
4. You ended the thought with a hanging modifier and no conclusion. "Relatively" to what?
<<The KT333 is a pretty transparent scheme to squeeze every last penny out of the newbie hardware enthusiast, promising memory performance 20% greater, but as benchmarks prove, the latency issues pretty much even it all out. Then there's the fact it requires expensive PC2700 DDR, which may or may not be a dead end but AMD certainly isn't releasing Athlon support for it...>>
NVidia's claims on their own memory performance of nForce chipsets are more farcical. Here is VIA's exact claim: "The VIA Apollo KT333 is the first VIA chipset to feature DDR333 memory offering 25% more memory bandwidth to the CPU."
link
<<I feel sorry for those people buying KT333 based boards expecting great performance. It may edge out the nforce by a negligible margin but in no way is the risk of instability and the added cost worth it.>>
The reason people choose a KT333 is likely because of its ability to officially support DDR333. Even if its the same KT266A design with a new badge its important to the customer to know that it does support DDR333. At the same time VIA releases a
VT8233A south bridge wih ATA133 support.
<<Madrat if you wanna keep boasting your own POS just because you made the mistake of buying it, thats fine. (Don't feel too bad, I made that mistake five times) But I consider my message a public service.>>
What exact POS have I boasted about? Oh, yeah, I never boasted. This claim is just more FUD from you.