Gizmodo posted a cool graphics comparison of the iPhone 3G and iPhone 3GS running Iron Fist Boxing 3. The site noted:

You see shadows, sweat and bloom lighting (edit: experts in the audience say it’s technically specular mapping) while playing on the 3GS (all of which you’ll notice in the lead shot). Plus, you’ll notice additional in-game effects like motion blur on the 3GS, too. Still, the 3GS only handles this advanced content at 30fps. The graphic improvements can be turned off so the handheld can reach 60fps.

The iPhone developers I spoke to said that supporting the 3GS’ superior graphics adds anywhere from 10 to 30 percent to the development costs, mostly on the art side.

Anyone else out there rockin’ an iPhone 3GS? Any games impress you? I’m always looking for recommendations.

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