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Boot camp allows you to run Windows Natively without and virtualization. It allows you to partition your hard drive and make a driver CD. It does nothing else other then that. Any OS that is running natively will give you better performance then one running with virtualization software.
 
Cidered games are running natively, if the same game is optimized equally on each platform the performance difference would be negligible.
 
It's iffy. Cider runs natively. It's very optimized; it ONLY includes the parts of Windows you need for the game, and nothing else. All the crap is stripped out, which might make performance better. But then there's the extra overhead of having it run on top of OS X.

They should be pretty darned close.

kwood, Cider is not virtualization.
 
It's iffy. Cider runs natively. It's very optimized; it ONLY includes the parts of Windows you need for the game, and nothing else. All the crap is stripped out, which might make performance better. But then there's the extra overhead of having it run on top of OS X.

They should be pretty darned close.

kwood, Cider is not virtualization.
Cedega the linux sorta version of cider that just gives the games a path to cedega without the publishers optimizing actually runs the game faster on linux that it dose on windows very often, now since cider is a direct descendent of cedega.
The games are actually optimized and packaged for it then it should run faster than windows because Mac os x manages resources better, the flaws with cider games are apple, apple do not optimize graphics drivers and osx in its nature is great for multitasking but not so great for giving everything to one application.
But what it comes down to is cider games are os x native games that will just run, to play games in boot camp to need to buy windows xp or vista, so you loose $'s and hard drive space. Cidered games keep it simple and performance will be + or - 5% of each other, most likely the best improvements mac os will have is the game loading times will be a lot faster as cedega games are under linux.
 
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