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Identical to this Q6600. I scavenged this CPU from an old system that came in so I ended up with two of these 'SLACR' Q6600's . > Read more

At one point in time the Q6600 will be a classic. The Q6600 has been around since January 2007 and back then everyone was happy with either an Athlon 64 X2 or Core 2 Duo. The latter was quite new as the first Core 2 Duo's appeared half way 2006.

Technically the Q6600 consists of two Core 2 Duo E6600 cores. It's just like the Pentium D 9xx 'Presler' which also has two individual cores on one packaging.

The Q6600 was quite a performer if you could use the extra cores. In normal situations an E6600 would be practically equal and a faster dual-core CPU would outperform a lower clocked quad-core in many situations. Despite that many power hungry bought the Q6600 as it was getting cheaper every month. Overclockers were happy because the Q6600 clocked fairly good and by just raising the front-side-bus to 333 (QDR1333) or 400 (QDR1600) the CPU would fly!

This Core 2 Quad Q6600 has been in my main workstation until I bought an AMD Ryzen 7 1700 in March 2017. I had the G0 version which is newer and overclocked better. The first Q6600's with sSpec number SL9UM and revision B3 didn't clock as good as the G0 and ran slightly hotter (105W TDP versus 95W TDP). My CPU was clocked at 3,2GHz using a 400 (QDR1600) FSB and slightly increased core-voltage. It ran happy for years until I ran into problems with my memory and since I got interest in the Ryzen 7 I decided to part with the Q6600 system that ran fine for years. > Read more