[citation][nom]ta152h[/nom]Going back to the Pentium III situation, realistically speaking, anyone wishing to use it, will not be using PC133 SDRAM. You can with a Coppermine, but Coppermine's are pretty slow. Tualatins will require in most cases DDR 266 MHz memory, for the simple reason the i815 doesn't support more than 512 MB, and you'll need the Apollo Pro 266T for the chipset (unless you get one of the ServerWorks chipsets, which is a mistake for desktop). You can use SDRAM with some motherboards of the Apollo Pro 266T, but most support only DDR. Most of the time, even to this day, I use Tualatin. It's a Celeron 1.4 GHz, and if I need to, I can overclock it easily to 1.6 GHz, which has the additional benefit of increasing the memory bus speed (which is a huge bottleneck on this processors).The Pentium III-S is the 512K version, server version. It's much faster because of the bus speed, faster L2 cache, and larger cache memory. But, it's really not supposed to be used in a desktop motherboard, and will degrade because of the different load line characteristics. The desktop Pentium III is a strange bird, having 256K cache, and the 1333 MHz bus, but only running at 1.2 GHz. Whether it's better than the Celeron is debatable, and it's harder to find for sure. At stock speeds it is, but the Celeron is really easy to overclock because only the processor is being overclocked, the memory is still under the 133 MHz value. It's surely faster than the Atom, which is a very primitive processor. Memory performance is better, but everything else is much worse. The Pentium III is much more advanced. By the way, the reason boards couldn't initialize more than 512MB was the 815 chipset. Intel deliberated weakened this chipset with mediocre performance and limited memory support so as not to compete too strongly with the RDRAM based i820, which sucked bad, or the higher end i840, which was actually quite excellent. In fact, the 440BX supported 2 GB, and performed better than the i815, but was not made for 133 MHz, and when overclocked to 133 MHz, would also overclock your AGP bus to 89 MHz. The i840 was excellent, but expensive, and used VERY expensive RDRAM. The i820 sucked, and used VERY expensive RDRAM. i815 was mediocre, and didn't support much memory, and the 440BX had to run AGP overclocked if you wanted to run it 133 MHz. So, none were perfect solutions, which gave VIA an opening.For the Tualatin, only the 815 came over, while VIA moved their 133T and Apollo Pro 266T to support it. The Apollo Pro was the clearly the best, having much better memory performance than the 133t (even when using SDRAM), and support dual processors and a lot of memory. There were some weird 815 boards with dual processors, but they were hard to find, and DDR showed greater advantages in dual processor roles (since the requesting processor didn't hog the memory bus for as long, since the burst completed faster with DDR).[/citation]
Coppermines were not that much slower, even if they were the gen. before tualatin.
Tualatins had no need for DDR ram and 99% of the systems out there didnt use DDR or RD and stuck with good old SDR (and a perfect 1:1 - FSB133 SDR133), and VIA chipsets are a VIA products which follow the general trend of being garbage (even today, and thank VIA for ruining AMD's name for many years too).
Celeron 1.4 chips were also rare, the average ones being the 1.1a or the 1.3
The 440BX chipset was actually originally designed for Pentium 2's and Katmai Pentium 3's (SLOT1, 250nm), and workstations etc - the lack of dividers/ratios is because it started of as a 66mhz FSB part with 100mhz FSB support.
[citation][nom]Master Exon[/nom]*Sigh*, why didn't they make it 64-bit only?[/citation]
Second that
[citation][nom]eddieroolz[/nom]Funny, my Beta doesn't even seem to take up 20GB, and its 64bit too.[/citation]
All these recommendations are because the more unaware home users need space for there music and crap, but for us more educated folk, we know we can pull of stunts like that if we have to.