While the nVidia GT 525M is better than the Intel HD 3000, it is still considered a relatively weak card.
The Intel HD 3000 is slightly faster than a desktop Radeon HD 5450. The nVidia GT 525M would be slower than a desktop Radeon HD 5570, but faster than the desktop HD 5550 by my estimation.
In comparison to desktop nVidia cards, the Intel HD 3000 is roughly equal to a nVidia GT 210, and the nVidia GT 525M is slower than the GT 220 (probably 30% slower).