- 1GB of RAM standard
- Nearly identical performance to 24-inch model
- Larger and brighter display
- Lack of free RAM slot makes for costlier memory upgrades
- Limited internal expansion options
- 3GB RAM limit
Apple boosts the processor in its 20-inch iMac to 2.16GHz. And this isn’t just a mere jump in clock speed — the old Core Duo chip has been replaced with a next-generation Core 2 Duo that boosts the amount of shared L2 cache to 4MB. Other than the larger screen size, faster processor and bigger hard drive, the specs on this model match the 17-inch iMac Core 2 Duo/2GHz. Build-to-order options include a 2.33GHz Core 2 Duo processor and a 500GB hard drive.
This round of iMac upgrades basically amount to speed bumps rather than completely new iMacs, but Apple does give you more machine for less money. If you’re looking for a bigger screen, the 20-inch model provides more than just additional pixels — it also gives you performance that is very similar to the 24-inch iMac.