These systems have all been thoroughly tested by our Apple Certified technicians and are guaranteed 100% functional. Systems will have minor signs of previous use including minor scuffs, scratches, nicks, and possible minor dents on the housing. Minor LCD blemishes are possible, however this will not affect one's ability to use the system normally.
The iMac "Core i7" 3.5 27-Inch Aluminum (Late 2013/Haswell) features a 22 nm "Haswell" Quad Core 3.5 GHz Intel "Core i7" (4771) processor with four independent processor cores on a single chip, an 8 MB shared level 3 cache, 16 GB of 1600 MHz DDR3 SDRAM , a 512GB PCIe Based Flash Drive, and a NVIDIA GeForce GTX 775M 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" 2560x1440 LED-backlit 16:9 widescreen IPS display with the "cover glass fully laminated to the LCD and anti-reflective coating." 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 ports, Gigabit Ethernet, 802.11ac Wi-Fi (802.11a/b/g/n compatible), and Bluetooth 4.0.
Compared to its predecessor, this model essentially has the same external enclosure, but it has a much more efficient "Fourth Generation" processor and architecture, as well as faster graphics, faster Wi-Fi, and the option of faster storage.