How much better is the 2nd gen i5 (specifically 2525M) compared with the Trinity

Solution
For raw computational processing power, Trinity is more or less out of it's league when being compared to a 2nd generation Sandy Bridge or 3rd generation Ivy Bridge CPU.

On the other hand, the integrated graphic core in Trinity is a bit more powerful than the Intel HD 4000 graphic core found in mobile Ivy Bridge CPUs. Ranking the performance of integrated graphic is as follows:

Radeon HD 7460G = Performance (for an integrated solution)
Intel HD 4000 = Mainstream
Intel HD 3000 = Budget
It's going to be a pretty big difference between them for that type of work.

If you look at the big chart of benchmarks linked above:

Core i5-2520M is ranked #52
A8-4500M Trinity is ranked #155 (but with the *asterisk that means incomplete benchmarks or a pre-release test system)
 
For raw computational processing power, Trinity is more or less out of it's league when being compared to a 2nd generation Sandy Bridge or 3rd generation Ivy Bridge CPU.

On the other hand, the integrated graphic core in Trinity is a bit more powerful than the Intel HD 4000 graphic core found in mobile Ivy Bridge CPUs. Ranking the performance of integrated graphic is as follows:

Radeon HD 7460G = Performance (for an integrated solution)
Intel HD 4000 = Mainstream
Intel HD 3000 = Budget
 
Solution