Intel's 45 nm Penryn CPU: 4 GHz Air Cooled

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New Boxed Cooler

Together with the review sample, we received Intel's new official specifications - all 96 pages of them. Under the entry Boxed Cooler, we found not only the familiar model but also a completely new design.

Below is an overview of all currently available Core 2 CPUs.

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NameCodenameClock SpeedCacheFSBProcess
Core 2 Extreme QX9650Yorkfield4x 2933 MHz2x 6144 kB333 MHz45 nm
NameCodenameClock SpeedCacheFSBProcess
Core 2 Extreme QX6850Kentsfield4x 3000 MHz2x 4096 kB333 MHz65 nm
Core 2 Extreme QX6800Kentsfield4x 2933 MHz2x 4096 kB266 MHz65 nm
Core 2 Extreme QX6700Kentsfield4x 2666 MHz2x 4096 kB266 MHz65 nm
Core 2 Extreme Q6700Kentsfield4x 2666 MHz2x 4096 kB266 MHz65 nm
Core 2 Quad Q6600Kentsfield4x 2400 MHz2x 4096 kB266 MHz65 nm
NameCodenameClock SpeedCacheFSBProcess
Core 2 Extreme X6800Conroe XE2x 2933 MHz1x 4096 kB266 MHz65 nm
Core 2 Duo E6850Conroe2x 3000 MHz1x 4096 kB333 MHz65 nm
Core 2 Duo E6750Conroe2x 2666 MHz1x 4096 kB333 MHz65 nm
Core 2 Duo E6550Conroe2x 2333 MHz1x 4096 kB333 MHz65 nm
Core 2 Duo E6540Conroe2x 2333 MHz1x 4096 kB333 MHz65 nm
Core 2 Duo E6700Conroe2x 2667 MHz1x 4096 kB266 MHz65 nm
Core 2 Duo E6600Conroe2x 2400 MHz1x 4096 kB266 MHz65 nm
NameCodenameClock SpeedCacheFSBProcess
Core 2 Duo E6400Conroe-20482x 2133 MHz1x 2048 kB266 MHz65 nm
Core 2 Duo E6300Conroe-20482x 1866 MHz1x 2048 kB266 MHz65 nm
Core 2 Duo E6420Conroe2x 2133 MHz1x 4096 kB266 MHz65 nm
Core 2 Duo E6320Conroe2x 1866 MHz1x 4096 kB266 MHz65 nm
Core 2 Duo E6400Allendale2x 2133 MHz1x 2048 kB266 MHz65 nm
Core 2 Duo E6300Allendale2x 1866 MHz1x 2048 kB266 MHz65 nm
Core 2 Duo E4600Allendale2x 2400 MHz1x 2048 kB200 MHz65 nm
Core 2 Duo E4500Allendale2x 2200 MHz1x 2048 kB200 MHz65 nm
Core 2 Duo E4400Allendale2x 2000 MHz1x 2048 kB200 MHz65 nm
Core 2 Duo E4300Allendale2x 1800 MHz1x 2048 kB200 MHz65 nm
NameCodenameClock SpeedCacheFSBProcess
Pentium Dual CoreE2180Conroe-L2x 2000 MHz1x 1024 kB200 MHz65 nm
Pentium Dual CoreE2160Conroe-L2x 1800 MHz1x 1024 kB200 MHz65 nm
Pentium Dual CoreE2140Conroe-L2x 1600 MHz1x 1024 kB200 MHz65 nm
The Editors of Tom's Hardware
The Editors of Tom's Hardware

Tom's Hardware is the leading destination for hardcore computer enthusiasts. We cover everything from processors to 3D printers, single-board computers, SSDs and high-end gaming rigs, empowering readers to make the most of the tech they love, keep up on the latest developments and buy the right gear. Our staff has more than 100 years of combined experience covering news, solving tech problems and reviewing components and systems.