I would ideally want to run 10.5 with it and use it for playing dota. Would it run smooth with full detail?
Dota should run flawlessly on it, it is such an old game. I could run it without difficulties on my machine (see signature), and the 12" powerbook is even better than it.
- I am assuming you are looking at the 1.5 Ghz, latest model.
If this is the case, max out the RAM and Leopard should run. Not sure how well, however. (I still use Tiger) ... maybe someone with more experience can answer that for you.
how does the speed compare to say.. a 1st gen macbook?
Geekbench scores:
PowerBook 12": 721
MacBook Rev A: 2290 - 2450 [1.83 - 2.0 Ghz]
If I havent analyzed the data incorrectly, this is using the Universal Binary (which Leopard + all other apps are today).. and truly, the Intel processor Macs should be quite faster.
In Rosetta (which Warcraft III is, dont think they updated it), there will be less difference....
To give a comparison, the MacBook Pro Rev A (of a friend) scored 830 emulating Rosetta.(Geekbench doesnt calculate Graphics, unfortunately).
So running Dota should about the same, also considering that the PowerBook has a superior graphics card (dedicated vs. shared)... it is such an old game, so really that shouldnt be an issue.
Verdict?
I would not recommend this as your primary machine, also considering that it is not at all future proof (Snow Leopard will seemingly be 64-bit only). But Dota should run well, if that is your main goal.
Moreover, the 12" PowerBook is truly stunning in looks as well as portability... most of the Mac community will agree. Yet at the same time, is gaming on a tiny display a good idea?
Max out the RAM to 1.25 GB....