Of course, at 3.3 gig and 1.50 VCORE or whatever, the CPUs had no problems passing 3D. It's when you push the chip to get 3.5 gig and above with 1.65+ VCORE, that the pimples and warts in an overclock will be evident - unless you get a Golden Chip.
I just tested a 2.0A CPU in my RDRAM rig. This is one of the old, 400 fsb CPUs of yesteryear. It's so refreshing to see a CPU that behaves predictably. Same thing with PentiumIII Coppermines. You usually can squeeze way more than a 2 mhz per +0.025-0.05 VCORE overclock with those CPUs.
Another thing I notice with the 800 fsb CPUs is in many cases, you can't use Memtest to dial in the overclock. With the old 'B' CPUs, you can expect 3D stability maybe 2-5 mhz below where Memtest #1/2/3/4 tests are clean. No more. Several 2.40Cs I've tried were Memtest clean at 300+ fsb, but could not boot Windows till 293 or be 3D stable till 288. One 2.80C was Memtest clean at 265 or 3.71+ gig, but was not 3D stable till 253.
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