Apple
Apple MHJY3LL/A 27" iMac Retina 5K i9 512GB SSD
★★★★★
5120 x 2880512GB SSD
A 10-core Intel i9 and AMD Radeon Pro 5700 8GB inside a 5K Retina display — the 27" iMac that still sets the benchmark for all-in-one workstation performance.
$1,599.00*
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*Price sourced from Amazon.com. Last updated:Jul 23, 2026.Price and availability are subject to change.
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Overview
Key Features
Dedicated Graphics Processor: Features an AMD Radeon Pro 5700 XT dedicated graphics card for enhanced performance.
High-Resolution Display: 27-inch iMac features a stunning Retina 5K display with 5120 x 2880 resolution for vivid colors and sharp details.
Quad-Core Processor: Equipped with an Intel Core i9 3.6GHz quad-core processor for fast and efficient performance.
Large Storage Capacity: Comes with a 1TB Fusion Drive for ample storage space and fast data access.
Built-in Microphone: Features a built-in microphone on the keyboard for hands-free audio recording and communication.
Specifications
Display
27" Retina 5K (5120 x 2880)
Processor
3.6GHz 10-Core Intel Core i9
RAM
8GB (upgradeable to 128GB)
Storage
512GB SSD
GPU
AMD Radeon Pro 5700 8GB GDDR6
Networking
10 Gigabit Ethernet
Color
Silver
Model Year
Mid 2020
Model Number
MHJY3LL/A
Frequently Asked Questions
What processor does the MHJY3LL/A ship with, and what does that mean for compute-heavy tasks?
This iMac ships with a 10-core Intel Core i9 at 3.6GHz (Turbo Boost up to 5.0GHz). That 10-core configuration gives it genuine parallel processing muscle — sustained multi-threaded workloads like video encoding, 3D rendering, and large RAW photo batch processing run substantially faster than the quad-core configurations in earlier iMac generations.
What GPU is included and how much VRAM does it have?
The discrete GPU is an AMD Radeon Pro 5700 with 8GB of GDDR6 VRAM. For GPU-accelerated workflows in Premiere Pro, DaVinci Resolve, or Final Cut Pro, that 8GB VRAM budget handles 4K multi-stream timelines without constant GPU memory throttling.
Does the 512GB SSD affect boot or application launch speed compared to the Fusion Drive variant?
Yes — the all-flash 512GB SSD delivers consistent read/write speeds well above what the Fusion Drive's HDD portion provides. You'll notice the difference immediately in cold boot times, large file imports, and virtual memory swapping under heavy load. The Fusion Drive's spinning platter creates unpredictable latency; the SSD eliminates it entirely.
What display technology does this iMac use and is it factory calibrated?
The 27" panel runs at 5120 x 2880 (218 PPI), covers the P3 wide color gamut, and supports True Tone. Apple factory-calibrates each panel, making it suitable for color-critical work straight out of the box — no third-party calibration required for most professional color workflows.
Does this iMac support 10 Gigabit Ethernet natively?
Yes — the Mid 2020 27" iMac includes a 10 Gigabit Ethernet port as a built-in option. For studios on a 10GbE NAS or SAN, this eliminates the bandwidth bottleneck that plagued the 1GbE iMacs — sustained transfer rates to a 10GbE storage array can exceed 1GB/s.
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