Daniel Eran Dilger
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Road to Snow Leopard: twice the RAM, half the price, 64-bits

Mac Vista virtual memory
Prince McLean, Apple Insider
Snow Leopard’s across-the-board leap to 64-bits, from the kernel to all of its bundled apps, will do more than just make more memory available. It will also have a significant positive impact on performance system wide, even more than the same jump to 64-bits in Windows Vista. Here’s why.

Following the initial introduction to 64-bit computing leading up to Snow Leopard and a second segment outlining issues related to the amount of RAM that can be installed and actually used by the system, this third segment examines how much memory a specific app can use and how performance will improve with 64-bit addressing despite the additional overhead involved. A follow up segment will look at how the market for 64-bit apps is unfolding and how Apple is pioneering 64-bits on the desktop.

Road to Mac OS X Snow Leopard 1: 64-bits
2: 64-bits, Santa Rosa and the great PC swindle
3: Twice the RAM, half the price, 64-bits
4: the future of 64-bit apps