What do you use your processor for?
There isn't any definitive test or set of tests to determine your processor's performance. In many scenarios, strong single-core performance is important. In some, multiple cores are extremely beneficial (to the point that a weak multi-core processor might trounce a strong single-core processor). In others, the amount of processor cache can make a significant difference.
Anandtech's bench stats don't have the G1610 on record so I went for the G620:
http://anandtech.com/bench/product/53?vs=406
It does seem like the C2Q's single core performance doesn't hold a candle to today's mainstream processors, and even the value ones like the Celeron/Pentium seem to give it a beating, while the C2Q's quad-core nature gives it an edge in some scenarios, but it depends on your needs. Your processor may be perfectly adequate (ie. you might not notice a worthwhile difference by upgrading). I would be surprised if, for example, you'd notice a difference if your uses are limited to video playback, browsing, e-mail, and typical office app usage.