Loudoun County, Virginia (Source: Genealogy Trails History Group) Loudoun County, Virginia (Source: Wayback Machine) Loudoun County, Virginia Genealogy (Source: USGenWeb)
The Intel Core i7 Processor is a top of the line quad-core processor. The games you're referring to are probably referring to dual-core processors. A 1.73 ghz i7 is significantly faster than a 2.4 ghz i3. Don't worry, you're good to go.
Core i5 is a Dual Core processor line. It is Intel's mid-range processor series. It has many of the same features as the i7s including: Hyper Threading, Enhanced Intel Speed Step, and Turbo Boost. In addition to these features many Core i5s also include an integrated graphics processor on the die.