Why is my new pc only better at non-unity games?

I recently put a custom pc together to allow more room for expansion of my project but to my surprise it doesn't handle processing and graphics in unity (3.4.2) much better than the laptop I had but it is much better at industry games like sonic generations, just cause 2 and grid 2. I know I'm using an older version of unity but I can't get my project to convert with even the slightest bit of functionality in tact whenever I try to upgrade. The laptop is hp pavilion dv7-7128nr(8gb ddr3 ram, intel core i5-2450M 2.5ghz, windows7, and intel hd graphics 3000) and the pc's specs are 8gb ddr3 ram, amd a6 dual-core 3.6-3.8ghz, windows7, and radeon r7 250gb gddr5. The only major improvement I've really found is the input responsiveness, such that when the resolution is very high the frame rate and input would lag(aprox 3/4 of a sec) on the laptop but only the framerate on the pc.

 

This is most likely your problem. A decent amount of performance improvements in some recent hardware is not so much in raw processing power as in support for new features and parallelization, both of which an old version of Unity would be pretty poor at.

As painful as it is to update to new versions of Unity.... it's time.

 

As painful as it is to update to new versions of Unity.... it's time.[/QUOTE]

I had pretty much ruled that out but it could be interesting.

 

Unity 4 will no longer be supported very soon, and Unity 3 hasn't been supported for a long time. It's been a while since most Unity programmers have seen Unity 3, and many of us haven't ever seen Unity 3.

I'm not trying to be rude, but nobody can really help you unless you upgrade.