| Conegamer said: I'm not the best person on computers, but I'd say it should be able to do more in the same way that a 2GHz Dual Core is more efficent than a 4GHz Single-Core. |
Actually, there are very very few circumstances where a 2GHz dual core is more efficient than a 4GHz single core.
For one thing, many tasks cannot be broken down into two separate jobs, whereas two jobs can be multitasked with not much penalty (the granularity of context switching needs to be unnoticeable to humans, but this can still be millions of processor cycles). Additionally, there is an overhead with two processors accessing the same shared resource (memory): they need to spend time negotiating its use.
The sense in which 2GHz dual cores are more efficient tends to be the power consumption angle. Not that they can do more, but that a 4GHz processor requires smaller transistors (making it less economical to produce) and wastes more heat compared to two 2GHz processors, all other things being equal. As a result you can possibly do more because ease of dual core design allows you to add performance enhancements so that all other things are not equal.
