Apple iMac 27" A1419 (5K Late-2014) Retina i5-4690 3.5GHz, 8GB RAM, 1TB HDD

Specs at a Glance:

• 27-inch DCI-P3 "Retina 5K" Resolution LED-backlit display (5120*2880 resolution)
• Intel Core 3.5GHz quad-core "Haswell" processor
• 8GB DDR3 RAM
• 1TB Hard Drive
• AMD Radeon R9 M290X Graphics
• FaceTime HD Camera
• Four USB 3, two Thunderbolt 2 (Airplay supported), Gigabit Ethernet and SDXC card slot
• Wi-Fi 802.11ac and Bluetooth 4.0
• macOS 10.13 High Sierra
• Apple Wireless Keyboard and Magic Mouse

More spec details below, courtesy of our friends at EveryMac.

The iMac "Core i5" 3.5 27-Inch Aluminum (Late 2014/Retina 5K) features a 22 nm "Haswell" Quad Core3.5 GHz Intel "Core i5" (4690) processor with four independent processor cores on a single chip, a 6 MB shared level 3 cache, 8 GB of 1600 MHz DDR3 SDRAM (PC3-12800) installed in pairs (two 4 GB modules), a 1 TB "Fusion Drive" (1 TB hard drive and 128 GB SSD), and a AMD Radeon R9 M290X graphics processor with 2 GB of dedicated GDDR5 memory. It also has a built-in "FaceTime HD" webcam and stereo speakers, but lacks an optical drive.

This model has a 27" 5120x2880 LED-backlit 16:9 widescreen IPS display that Apple has dubbed "Retina 5K". The rear of the case is aluminum and is thicker in the middle and tapers to a razor thin 5 mm at the edges.

Connectivity includes four USB 3.0 ports, dual Thunderbolt 2 ports, Gigabit Ethernet, 802.11ac Wi-Fi (802.11a/b/g/n backwards compatible), and Bluetooth 4.0.

Compared to the "Late 2013" models introduced previously, this model essentially has the same external enclosure, but it has a much higher resolution display as well as a modestly faster processor, a higher performance graphics processor, a "Fusion Drive" by default, and Thunderbolt 2 support.