Intel Pentium 4 processor

• Intel® Pentium® 4 processor

The Intel® Pentium® 4 processor supporting Hyper-Threading Technology² gives you the freedom to multitask.

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Processor Number¹	Architecture	Cache	Clock Speed	Front Side Bus	Intel® Hyper-Threading Technology²	Enhanced Intel SpeedStep® Technology³	Intel® 64Ω	Execute Disable Bit°
670	90 nm	2 MB L2	3.80 GHz	800 MHz
661	65 nm	2 MB L2	3.60 GHz	800 MHz
660	90 nm	2 MB L2	3.60 GHz	800 MHz
651	65 nm	2 MB L2	3.40 GHz	800 MHz
650	90 nm	2 MB L2	3.40 GHz	800 MHz
641	65 nm	2 MB L2	3.20 GHz	800 MHz
640	90 nm	2 MB L2	3.20 GHz	800 MHz
631	65 nm	2 MB L2	3 GHz	800 MHz
630	90 nm	2 MB L2	3 GHz	800 MHz
551	90 nm	1 MB L2	3.40 GHz	800 MHz
541	90 nm	1 MB L2	3.20 GHz	800 MHz
531	90 nm	1 MB L2	3 GHz	800 MHz
524	90 nm	1 MB L2	3.06 GHz	533 MHz
521	90 nm	1 MB L2	2.80 GHz	800 MHz