Silently Apple has updated the iMac line

The 4th generation of 4-core Intel processors, the new graphics, the next generation of Wi-Fi and faster PCIe drives.

The 21.5-inch iMac got a 4-core Intel Core i5 2.7 GHz, Iris Pro graphics.

The upgraded version of the 21.5-inch iMac and both 27-inch versions (traditionally 2 different configurations with different characteristics) received an Intel Core i5 3.4 GHz and an NVIDIA GeForce 700 with double the amount of memory (promise a 40% performance boost). You can also replace the processor with an Intel Core i7 3.5 GHz and video with an NVIDIA GeForce GTX 780M with 4 gigabytes of memory.
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All models now have 802.11ac Wi-Fi.

Also, new aimaks are equipped with PCIe flash-drives, which give speed boost for Fusion Drive (hybrid SSD + HDD drives that promote Apple) and all flash-drives up to 50% compared to the previous generation.

In the new configuration, you can insert Fusion Drive size 1TB or 3TB.

By default, again, 8 GB of RAM with the ability to expand to 32 GB.

2 Thunderbolt ports, 4 USB 3.0.

The online store on the Apple site is available today.

Post on Apple site.