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What was the best CPU for overclocking of all time?

My first CPU was a Q6600 and I had it a 3200Ghz stable, never a a CPU overclock like that since

that only 800mhz... come on i have phenom x2 that unliked the x3 then overclocked to 4ghz
is an unlock classed as at OC?? because if it is AMD is KING
 
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AMD Barton
Sandy (Ivy if you could be arsed to delid, that's when Intel started using dodgy thermal gunk instead of solder between the die and IHS)

I had a 3570K (Ivy-Bridge, aka the Sandy refresh) running at 4.8ghz from launch for a decade and it never skipped at beat.
 
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I've had some gems over the years including some Pentiums, opterons and celerons. But overall I'm going to have to say I think the q6600 takes the win for best ever. Not just the one I had, but just for being such an amazing overclocker and CPU for its time, for so many people. I actually ran that CPU and a socket 775 platform for years and years and years stubbornly just because I could, and it would not bottleneck GPUs for several generations after it. It was a true legend of a CPU.
 
I recall my 2500K and Q9400 did some hefty overclocks, just can't remember to what (pretty sure the Q went up to 3.4Ghz). FSB overclocking took a lot more tinkering than the multiplier/voltages of modern CPUs, fun times!
 
showing age perhaps but I recall (at uni, a lab full of) celeron 300A at 300mhz, clocked to 450. +50% is probably some sort of record? :D

Later but I had a barton core 2600XP+ (1.83 ghz) at 2.5 (so 3400ish) under phase change.

2600K @ 4.3ghz from release till Ryzen 2xxx.



But yeah, I think "of all time". That celeron has to be close to the goat.

Edit: Doh, missed the 300A being mentioned in the OP :D
 
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