G
I didn't think they made an "E4200", (obviously a typo). The "Allendales" started at "E4300". and Intel concurs...http://ark.intel.com/products/series/27968 (The E4300 clocks stock @ 1.8Ghz)....[ ]....and my other desktop that I don't use ever is a C2D E4200 - but I don't remember the clock, want to say 2ish GHZ.