On Tuesday, the iPad and iPhone maker -- which has recently released the iPhone 5s and 5c to the public -- said that the updated iMac range includes a number of changes.
The entry-level 21.5-inch iMac now features a 2.7 GHz quad-core Intel Core i5 processor and new Iris Pro graphics for improved graphics performance levels.
The high-end 21.5-inch model and both 27-inch models feature quad-core Intel Core i5 processors up to 3.4 GHz and NVIDIA GeForce 700 series graphics with twice the video memory of previous models. The Cupertino, Calif.-based firm says this will result in performance rates up to 40 percent higher than previous iMac models.
Customers who wish to upgrade further can choose to upgrade to quad-core Intel Core i7 processors -- up to 3.5 GHz -- and NVIDIA GeForce GTX 780M series graphics cards with up to 4GB of video memory.
In addition, the iMac range now supports next generation 802.11ac Wi-Fi, which the company claims will be three times faster than the previous generation's wireless networking technology.
"iMac continues to be the example that proves how beautiful, fast and fun a desktop computer can be," said Philip Schiller, Apple's senior vice president of Worldwide Marketing. "Inside its ultra-thin aluminium enclosure, the new iMac has the latest Intel processors, faster graphics, next generation 802.11ac Wi-Fi and faster PCIe flash storage."
The updated iMac now also features support for PCIe-based flash storage, which will make all-flash storage times up to 50 percent faster -- including the Fusion Drive, which is available in 1TB or 3TB versions.
The new iMac has been made available today through the Apple store. The 21.5-inch iMac retails at $1,299, and the 27-inch models for $1,799 -- $1,999.