Originally posted by: Fresh Daemon
Sure, but the 300A was the one that really started it all. Before then you were usually talking about a few more MHz, not adding at least 50% to the speed!
There has been decent overclocks before then, perhaps not quite an easy 50% but pretty close.
486DX2-50 chips were ease 66MHz or even 80MHz. 486DX2-66 were an easy 80MHz. 486DX4-100 were an easy 120MHz.
Pentium 75 often would go 90-100MHz.
The Pentium MMX-166 was such a sure bet at 233MHz that there was a huge trade in remark chips.
The AMD K6-200 chips were often good to 250MHz.
Before the Celeron 300A there was the Celeron 266@400MHz.
There were some cherry Pentium II 333MHz chips that would do 500MHz, indeed a whole bunch of them had the faster speed cache needed. I think some slower cores also had faster cache as well. These weren't as popular as the Celeron 300A because of the higher cost.
Celeron 2GHz were a sure 2.66GHz. Mine pretty much hit 3GHz and I'm sure I wasn't the only one.
The slower Celeron D chips (Deleron) at 2.4GHz and under would often get a 50% overclock, especially the 2.26GHz and 2.13GHz ones (models 320, 315 and 310 respectively).
Don't forget that it's also about how common the overclock is. Anyone who bought a 300A was basically guaranteed 450, but there are lots of Venice cores out there that won't hit 2500MHz.
Well, the "Malay" ones were an easy 450MHz. The "Costa Rica" ones were not as good. The became more "guaranteed" when they released the 366MHz because a greater portion of those hit 550 than the 300A at 450MHz.