Power is a beautiful thing.
As you might suspect, design doesn’t supersede performance. The new iMac has always made it fast and easy to do everything from surfing the web to making home movies to video chatting. Now iMac offers greater performance than ever thanks to faster dual-core Intel processors and a speedier frontside bus. iMac features the Intel Core 2 Duo processor at speeds up to 2.8GHz. And for maximum power, you can upgrade the 24-inch iMac to an Intel Core 2 Duo processor at 3.06GHz.
The big picture.
All iMac models feature a display with a 16:10 wide aspect ratio — perfect for watching movies, viewing photos, and using applications with lots of palettes. How do the displays compare? The 20-inch widescreen iMac offers a resolution of 1680 by 1050 pixels on its flat-panel LCD screen — 36 percent more than the previous 17-inch iMac. The 24-inch iMac offers a panoramic resolution of 1920 by 1200 pixels — 30 percent more screen real estate than the 20-inch model.
Glossy widescreen display.
Whether you’ve got your eye on the 20-inch or breathtaking 24-inch iMac, you’ll enjoy a wondrous widescreen performance from every seat in the house.
Rich, vivid color.
No matter what you like to do on your computer — watch movies, edit photos, play games, even just view a screen saver — it’s going to look stunning on an iMac. That’s because iMac now features a glossy display with glass cover that makes graphics, photos, and videos come alive with richer colors and deeper blacks.
Whether you’ve got your eye on the 20-inch or breathtaking 24-inch iMac, you’ll enjoy a wondrous widescreen performance from every seat in the house.
Turbocharged.
With their 64-bit processor architecture, the Intel Core 2 processors can manipulate data and execute instructions in large chunks to deliver advanced computational power to iMac. 
That adds up to exceptional speed and agility, improved performance you’ll notice when working with photos in iPhoto or Aperture, creating Keynote presentations, editing video in Final Cut Pro, playing HD video, or holding four-way video conferences.
Speedy system architecture.
Augmenting the advanced Core 2 processors is an equally advanced system architecture. It includes, for example, an 800MHz system bus and 4MB of shared L2 cache. With such substantial L2 cache, data instructions can be kept close to the two processor cores, greatly increasing performance and allowing the entire system to work more efficiently.
