Stunning Retina 5K display
With 14.7M pixels and a 5120x2880 resolution, the iMac with Retina 5K display has seven times the resolution of a standard HDTV and 67% more pixels than a 4K display
Improved contrast for brighter whites and darker blacks
Full lamination of the display cover glass creates a brilliant display that?s 75% less reflective
The extremely precise antireflective coating allows uncompromised vibrant, accurate colors to show through
Next-generation graphics
The AMD Radeon R9 M290X graphics processor with 2GB of GDDR5 memory provides jaw-dropping graphics performance and a true-to-life feel
Product Specifications
27-inch w/ 5k Retina Display
3.5GHz Quad Core Intel Core i5 Processor (Turbo Boost up to 3.9GHz)
8GB (two 4GB) of 1600MHz DDR3 RAM; four user-accessible SO-DIMM slots
1 TB Fusion Drive
AMD Radeon R9 M290X graphics
Apple part number: MF886LL/A
Amazing ultrathin design
iMac has a stunningly thin, gorgeous aluminum and glass design that is only 5mm thick at its edge
Packs a remarkably powerful computer into an amazingly thin enclosure
The fully integrated design takes up very little space, the stand is just 6.9? deep on the 21.5? models and 8? deep on the 27? models
Fourth-generation Intel Core i5 processors
All models feature fourth-generation dual-core or quad-core Intel Core i5 processors with Turbo Boost?delivering great performance while using less energy
High-speed I/O
Four USB 3 ports for 10 times faster performance than USB 2.0
Two Thunderbolt 2 ports (Mini DisplayPort output, support for DVI, VGA and dual-link DVI with adapters, sold separately)
10/100/1000BASE-T Gigabit Ethernet (RJ-45 connector)
SDXC Card slot
802.11ac Wi-FI; IEEE 802.11a/b/g/n compatible
Bluetooth 4.0