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Apple has updated iMac with fourth-generation Intel quad-core processors, new graphics, next generation Wi-Fi and PCIe flash storage options.

The entry-level 21.5-inch iMac features a 2.7GHz Intel quad-core Core i5 processor and new Iris Pro GPU for graphics performance. The high-end 21.5-inch model and both 27-inch models feature Intel quad-core Core i5 processors with up to 3.4GHz clock speed and Nvidia GeForce 700 series graphics with twice the video memory and up to 40% faster performance than the previous generation, according to Apple. Customers can even upgrade the iMacs to Intel quad-core Core i7 processors with up to 3.5GHz clock speed and Nvidia GeForce GTX 780M series graphics with up to 4GB of video memory.

iMac now supports next-generation 802.11ac Wi-Fi. When connected to an 802.11ac base station, iMac delivers wireless performance that is up to three times faster than the previous generation, Apple claimed.

The updated iMac now features support for PCIe-based flash storage that makes Fusion Drive and all-flash storage options up to 50% faster than the previous generation. Customers can configure their iMac with a 1TB or 3TB Fusion Drive, and all-flash storage options are now available in configurations up to 1TB.