The 3.2 GHz 21.5″ and dual-core 27″ models use Radeon 5670 graphics with 512 MB of video memory, and the quad-core iMacs have Radeon 5750 graphics with 1 GB of video memory. The base 21.5″ model has ATI Radeon HD 4670 graphics with 256 MB of dedicated memory. The new iMac can also be ordered with Apple’s new Magic Trackpad.Ĥ GB of RAM remains standard across the line, and maximum RAM stands at 16 GB using four 4 GB modules. The SD Card slot, which is on the right side below the SuperDrive, supports SDXC.Īpple’s wireless keyboard is now standard, as is the Magic Mouse. Both sizes are LED backlit, and the 27″ iMac also has Mini DisplayPort input, allowing another computer or video device (DVD or Blu-ray player) that supports DisplayPort to use the iMac’s screen (it’s not compatible with HDMI, DVI, or VGA, although there are now some third-party adapters). The smaller iMac has the same 1920 x 1080 pixel resolution as 1080i high-def television, and the 27″ provides an incredible 2560 x 1440 pixels. Except for the base 21.5″ model, Apple offers a faster CPU option at $200 more. CPU speeds start at 3.06 GHz for dual-core models and 2.8 GHz for quad-core ones, and all but the i3 CPUs support Intel’s Turbo Boost technology, which allows them to run at even higher speeds (making allowance for heat issues).Īpple has also adopted 1333 MHz memory, a step up from 1066 MHz RAM in the previous generation. All CPUs used in the 2010 iMac support Hyper-Threading (on last year’s model, only the i7 versions supported Hyper-Threading). Apple has now moved the entire iMac line to Intel’s Core “i” family of CPUs, including the dual-core i3 and i5 as well as the quad-core i7.