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iMac Retina 5K 27" (Late 2014)

A1419 · iMac15,1 · 2014–2015 · all-in-one

Specifications

Cpu: Intel Core i5-4690 3.5 GHz quad-core (i7-4790K 4.0 GHz BTO)
Gpu: AMD Radeon R9 M290X 2 GB (R9 M295X 4 GB BTO)
Ram: max: 32 GB (4×8 GB SO-DIMM) · base: 8 GB DDR3-1600
Ports: USB 3.0 ×4 · Thunderbolt 2 ×2 · SDXC card slot · Gigabit Ethernet
Display: 27" 5120×2880 Retina 5K IPS LCD
Storage: base: 1 TB Fusion Drive · options: 3 TB Fusion Drive · 256 GB / 512 GB / 1 TB flash (BTO)
Os Support: latest: macOS 11 Big Sur · shipped: OS X 10.10 Yosemite
Release Price: $2,499

Upgrade paths

RAM

32 GB (4×8 GB DDR3-1600 SO-DIMM) · Button above the power inlet opens the rear RAM door, no tools needed.

~$60

EASY

storage

SATA bay plus PCIe blade slot; blade takes NVMe SSDs via adapter after a High Sierra firmware update · Display is glued with adhesive strips, opening requires cutting them and re-taping on reassembly.

HARD