The K6 line was a functional CPU but I wouldn't call them "excellent". The K6-III was basically a K6-2 with integrated cache, much the same way the Pentium III was a Pentium II with integrated cache. Despite the fact that AMD tried to replicate Pentium branding on the K6 line, they very much competed with Celerons in terms of market place and performance.
Indeed that's how they were marketed where I worked (Office Max) and were priced and spec'd comparably to the Celeron based offerings from IBM, HP, and Packard Bell.
Another issue with the K6 line was they were always a generation behind at a time when Intel was rapidly rolling out technologies like MMX and SSE. Intel coordinated with software manufacturers and had launch day examples that presented significant performance gaps between the CPU lines.
The K6 also had a shorter execution pipeline than Pentium so it struggled to hit 400mhz when Intel was approaching 500mhz. That's why the Athlon was such a shock because it arrived at 700mhz and stomped everything.
Looking back at the K6 line now, they likely perform far better then they did at the time because software eventually got around to supporting the hardware.
Minor correction. Athlon arrived at 500MHz, 550MHz and 600MHz. But they were still a big shock when they arrived. They were the first chip in a long while to really take on Intel and succeed.
The 650MHz came two months after than, and 700MHz another two months later. 6 months later 1GHz! It is easy to forget just how rapid performance increased in the late 90s.
I'm trying to reconcile that with my memory. Pre-launch the AMD rep approached the electronics salesmen where I worked and offered us a deal to purchase a K7 700mhz for like $200. It came with a Biostar motherboard, a brand I'd never heard of back then.
I remember it was a K7 700 because it was the first from scratch PC that I ever built. Everything before and probably since has been a Ship of Theseus.
"AMD Athlon 500-600MHz (bulk) price display. The product is scheduled to arrive in mid-July, and reservations are being accepted. However, there is no specific arrival schedule for compatible motherboards yet."
"the K7 revised "Athlon" has been given a price and reservations have also started. The estimated price is 44,800 yen for 500MHz, 69,800 yen for 550MHz, and 89,800 yen for 600MHz."
"AMD's latest CPU "Athlon" will be sold in Akihabara without waiting for the official release date on the 17th is started. All products on the market are imported products, and 3 models of 500MHz/550MHz/600MHz are on sale. The sale of compatible motherboards has also started, and it is possible to obtain it alone, including Athlon"
K6-III was never excellent. It was a short lived overpriced option for desperate socket7 users unwilling to do the sensible thing and upgrade whole platform (brand new Celeron 300A + 440BX motherboard cheaper than just the K6-3 cpu alone). Paper launch in February 1999 with first real chips shipping in March. First K6-3 to show up in Japan was K6-III/400 at hilarious 35,500 yen = $295! https://akiba-pc.watch.impress.co.jp/hotline/990313/p_cpu.ht... This is the price of full Pentium II 400MHz or over four almost year old by this point and still faster Celerons 300A.
K6-III/450 24,800 $236 haha whats up with that price? Either AMD stopped shipping already and its leftovers or its a sucker tax for ss7 owners wanting to max out.
Looks like by the time Durons showed up nobody was bothering to stock K6-3, only 3 vendors in Akihabara had them. Those crazy prices werent limited to Japan, Poland September 1999:
Pentium III 450MHz 1260 $308
Pentium II 400MHz 943 $231
Celeron 366MHz 348 $85 (300A missing from the list, but was still available and selling cheaper)
K6-III/450 1108 $271 HAHA
K6-III/400 877 $215
K6-2/400 397 $97 haha
K6-2/350 230 $56
For a brief moment in 1999 AMD pretended K6-3 was equal to Pentium 2/3 and tried to price it accordingly but market corrected them swiftly. There was a 1/3 performance gap between K6-3 and overclocked Celeron.
