Display & Visuals

• Screen Size: 27-inch (diagonal) LED-backlit IPS display

• Resolution: Quad HD ($2560 \times 1440$ pixels) at 16:9 aspect ratio

• Panel Quality: Anti-reflective coating and wide $178^\circ$ viewing angles

Processor & Graphics

• Processor (CPU): 4th-Gen Intel Core i5 Quad-Core @ 3.2GHz or 3.4GHz (Turbo Boost up to 3.8GHz) — Configurable to 3.5GHz Quad-Core Core i7

• Graphics (GPU): NVIDIA GeForce GT 755M (1 GB GDDR5) or GTX 775M (2 GB GDDR5) — Configurable to GTX 780M (4 GB GDDR5)

Memory & Storage

• RAM: 8 GB (2x 4 GB) 1600 MHz DDR3; User-upgradeable via 4 SO-DIMM slots (up to 32 GB)

• Storage Options: 1 TB HDD (7200-rpm), 1 TB / 3 TB Fusion Drive, or PCIe-based SSD options (256 GB / 512 GB / 1 TB)

2. Late 2014 27-inch iMac (Retina 5K)

Display & Visuals

• Screen Size: 27-inch (diagonal) Retina 5K display

• Resolution: $5120 \times 2880$ pixels (14.7 million pixels)

• Panel Quality: IPS technology with high contrast ratio and vivid color accuracy

Processor & Graphics

• Processor (CPU): 4th-Gen Intel Core i5 Quad-Core @ 3.5GHz (Turbo Boost up to 3.9GHz) — Configurable to 4.0GHz Quad-Core Core i7

• Graphics (GPU): AMD Radeon R9 M290X (2 GB GDDR5) — Configurable to Radeon R9 M295X (4 GB GDDR5)

Memory & Storage

• RAM: 8 GB (2x 4 GB) 1600 MHz DDR3; User-upgradeable via 4 SO-DIMM slots (up to 32 GB)

• Storage Options: 1 TB Fusion Drive standard (Configurable to 3 TB Fusion Drive or up to 1 TB PCIe SSD)