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.
The i7 is a quad core cpu with hyper threading meaning that it has basically 4 'cores' but windows will see it as having 8. The i5 is a dual core so it has two but windows sees it as 4. So because the i7 has four cores even at a lower clockspeed (ghz) the i7 is faster.