I must have misremembered, it's been a long time. I swore there were Celeron 300As that were Covington cores with the external L2 cache but it makes sense they were the Mendocino cores with the on-die L2.

I really wanted an overclocked Celeron set up but for the year or so they were hot shit my upgrade money went to storage. That was more pressing for me at the time. By the time I was due for (and could afford) a system upgrade I was able to go directly to a Pentium III.