Assuming last minute snags are avoided, Apple in the coming weeks is expect to unveil a family of refreshed iMacs that will round out its 2008 introductions and send the company into the holiday shopping season with one of its strongest product portfolios ever. Apple currently offers an ATI Radeon HD 2400 or 2600 paired with an Intel chipset as the baseline offering in existing iMacs.  An NVIDIA GeForce 8800 GT is listed as a $150 build-to-order option.

It's possible Apple could use the same or a related NVIDIA controller in the iMac that it enthusiastically demonstrated in the new MacBook lines.

Source:→ AppleInsider