Some notes on 3D performance on the new iMacs

i've played around new imac while now, , have come across issues 3d performance, thought i'd share i've found - may explain poor performance seen @ times. i've been using windows 3d, i've seen same thing in osx, guess drivers based on same code both.

first - performance overall good. when people radeon 2600 slow card - true when compare high end cards. it's quite fast, , should handle latest games @ reasonable speed + quality (i'm not gamer though, i've not tried it). 3d stuff use has run better expected.

- catch. i've noticed can run things @ full resolution (1920x1200) 4x aa, , runs fine - until new textures loaded, , stutters badly second or so. reckon have pretty big impact on frame rate figures, bench marks etc. happens often.

asked friend (who wrote 1 of bits of software in question), , reply "yes, ati 2xxx series drivers break cache warming". happens - when new texture needed, it's prepared , sent card it's there when it's needed. if isn't done, nice smooth running 3d grinds halt while card waits texture loaded. i've seen.

news driver issue, , should fixed bit of luck - expect performance boost when is. in meantime, think there work-arounds, companies making games etc. provide patch (i saw there 1 bioshock - perhaps fixes? care try before applying patch, see if there's bad stuttering smooth patches between?)

 

it might have been fixed in last driver update, unavailable users on bootcamp.

expect leopard have improved drivers both os x, xp , vista. bootcamp still beta until after all.

 

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