macnews said:Doom 3 requires (according to www.doom3.com) Windows 2000/XP and DirectX - neither of which run on OSX natively. I tried to find what "photography" software MaximumPC wrote on but since you said it is common to both OSes I am guessing Photoshop. In that case, Photoshop also has to run under rosetta, thus doesn't run at full steam on an Intel chip. As a result, they are not comparing Apples-to-Windows correctly. So NOT weird at all, and it has nothing to do with a change in 10.5. It will have everything to do with comparing one piece of software running natively on both systems.
I'm looking at the magazine now, and they had 4 tests: Windows XP vs. Mac OS X universal apps, winxp vs. rosetta, os x universal vs. rosetta and winxp vs. winxp under parallels on an Intel iMac.
For the WinXP vs. Universal binaries, they had Doom 3, Bibble Pro 4.7, and Noise Ninja beta. For WinXP vs. rosetta, they had Photoshop CS2. Under universal binary vs. rosetta, they had bibble pro 4.7 and Doom 3 while the native WinXP vs. WinXP under parallels had Photoshop.
In the article, Windows XP beat Mac OS X in each case. However, they said
At www.apple.com/macosx/bootcamp/ the requirements of bootcamp are 10.4.6.We updated OS X to the latest version (10.4.5)