Apple iMac 21.5 Inch 2.5GHz
The iMac "Core i5" 2.5 21.5-Inch Aluminum (Mid-2011) is powered by a Quad Core 2.5 GHz Intel "Core i5" I5-2400S (Sandy Bridge) processor with a dedicated 256k level 2 cache for each core and a 6 MB shared level 3 cache. In lieu of a system bus, it has a "Direct Media Interface" (DMI) that "connects between the processor and chipset" at 5 GT/s.
Powered by quad-core processors, the new iMac is our fastest yet — up to 70 percent faster than the previous generation.4 Every model in the lineup comes standard with the latest Intel Core i5 quad-core processor.
With advanced AMD Radeon HD graphics processors across the line, iMac performs even better than before — up to three times better, in fact.5 So you see more frames per second in 3D games, and you can edit HD home videos with more speed and responsiveness than you ever thought possible.
Ultrafast and ultraflexible, the Thunderbolt port features two 10-Gbps data channels for data transfer that’s up to 12 times faster than FireWire 800 and up to 20 times faster than USB 2.0. And it offers unprecedented expansion capabilities for a new generation of high-performance peripherals.
Get more of your friends in the picture with crisp, widescreen HD video. The new FaceTime HD camera lets you make FaceTime video calls in 720p resolution. The picture is so clear, it will look and feel almost like you’re in the same room. Make HD calls from one new iMac to another or to a new MacBook Pro. You can also make video calls to other Intel-based Mac computers, iPad 2, iPhone 4, or the latest iPod touch.6
|Processor||2.5GHz Quad-Core Intel Core i5|
|Cache||6MB on-chip shared L3 cache|
|Memory||4GB (two 2GB SO-DIMMs) of 1333MHz DDR3 SDRAM; supports up to 8GB|
|Hard drive||500GB Serial ATA1; 7200 rpm|
|Optical drive||Slot-loading 8x SuperDrive with 4x double-layer burning (DVD±R DL/DVD±RW/CD-RW)|
|Display||21.5-inch (viewable) LED-backlit glossy 16:9 widescreen TFT active-matrix display; 1920 by 1080 pixels; millions of colors; IPS technology|
|Video||Built-in FaceTime HD camera; Mini DisplayPort output with support for DVI, dual-link DVI, and VGA video (requires adapters, sold separately); supports input from external DisplayPort sources (requires cables and adapters, sold separately)|
|Graphics||AMD Radeon HD 6750M with 512MB of GDDR5 memory|
|Thunderbolt / Firewire||One Thunderbolt port and One FireWire 800 port; 7 watts|
|USB||Four USB 2.0 ports|
|SD Card||SDXC card slot|
|Audio||Built-in stereo speakers with two internal 20-watt high-efficiency amplifiers, built-in microphone, optical digital audio output/headphone out, optical digital audio input/audio line in|
|Ethernet||Built-in 10/100/1000BASE-T (Gigabit)|
|Wireless||Built-in AirPort Extreme 802.11n Wi-Fi wireless networking2; built-in Bluetooth 2.1 + EDR (Enhanced Data Rate)|
|Included accessories||Apple Wireless Keyboard and Magic Mouse|
|Other||Built-in IR receiver|
|Size and weight||
Height: 17.75 inches (45.1 cm)
Width: 20.8 inches (52.8 cm)
Depth: 7.42 inches (18.85 cm)
Weight: 20.5 pounds (9.3 kg)