Table of Contents

iMac Models

02/12/2024

iMac (24-inch, 2024, Four ports)

iMac (24-inch, 2024, Four ports) Technical Specifications

2024 iMac 24-inch has four Type-C ports.

Model Identifier	Mac16,3
Chip	Apple M4 Chip 10-core CPU with 4 performance cores and 6 efficiency cores 10-core GPU Hardware-accelerated ray tracing 16-core Neural Engine 120GB/s memory bandwidth Media Engine Hardware-accelerated H.264, HEVC, ProRes, and ProRes RAW Video decode engine Video encode engine ProRes encode and decode engine AV1 decode
Storage	256GB SSD (Configurable to: 512GB, 1TB, or 2TB)
Memory	16GB unified memory (Configurable to: 24GB or 32GB unified memory)
Display	24-inch 4.5K Retina display 4480-by-2520 resolution at 218 pixels per inch with support for 1 billion colors 500 nits brightness Wide color (P3) True Tone technology Configurable with: Nano-texture glass
Colors	Blue Purple Pink Orange Yellow Green Silver

 Apple Documentation: https://support.apple.com/en-us/121557

iMac (24-inch, 2024, Two ports)

iMac (24-inch, 2024, Two ports) Technical Specifications

2024 iMac 24-inch has two Type-C ports.

Chip	Apple M4 Chip 8-core CPU with 4 performance cores and 4 efficiency cores 8-core GPU Hardware-accelerated ray tracing 16-core Neural Engine 120GB/s memory bandwidth Media Engine Hardware-accelerated H.264, HEVC, ProRes, and ProRes RAW Video decode engine Video encode engine ProRes encode and decode engine AV1 decode
Storage	256GB SSD (Configurable to: 512GB or 1TB)
Memory	16GB unified memory (Configurable to: 24GB unified memory)
Display	24-inch 4.5K Retina display 4480-by-2520 resolution at 218 pixels per inch with support for 1 billion colors 500 nits brightness Wide color (P3) True Tone technology
Colors	Blue Purple Pink Orange Yellow Green Silver

 Apple Documentation: https://support.apple.com/en-us/121556

iMac (24-inch, 2023, Four ports)

iMac (24-inch, 2023, Four ports) Technical Specifications

Chip	Apple M3 Chip 8-core CPU with 4 performance cores and 4 efficiency cores 10-core GPU Hardware-accelerated ray tracing 16-core Neural Engine 100GB/s memory bandwidth Media Engine Hardware-accelerated H.264, HEVC, ProRes, and ProRes RAW Video decode engine Video encode engine ProRes encode and decode engine AV1 decode
Storage	256GB SSD or 512GB SSD (Configurable to: 1TB or 2TB)
Memory	8GB unified memory (Configurable to: 16GB or 24GB unified memory)
Display	24-inch 4.5K Retina display 4480-by-2520 resolution at 218 pixels per inch with support for 1 billion colors 500 nits brightness Wide color (P3) True Tone technology
Colors	Blue Green Pink Silver Yellow Orange Purple

 Apple Documentation: https://support.apple.com/en-us/117734

iMac (24-inch, 2023, Two ports)

iMac (24-inch, 2023, Two ports) Technical Specifications

Chip	Apple M3 Chip 8-core CPU with 4 performance cores and 4 efficiency cores 8-core GPU Hardware-accelerated ray tracing 16-core Neural Engine 100GB/s memory bandwidth Media Engine Hardware-accelerated H.264, HEVC, ProRes, and ProRes RAW Video decode engine Video encode engine ProRes encode and decode engine AV1 decode
Storage	256GB SSD (Configurable to: 512GB or 1TB)
Memory	8GB unified memory (Configurable to: 16GB or 24GB unified memory)
Display	24-inch 4.5K Retina display 4480-by-2520 resolution at 218 pixels per inch with support for 1 billion colors 500 nits brightness Wide color (P3) True Tone technology
Colors	Blue Green Pink Silver Yellow Orange Purple

 Apple Documentation: https://support.apple.com/en-us/117733

iMac (24-inch, M1, 2021)

iMac (24-inch, M1, 2021) Technical Specifications

Chip

Apple M1 Chip

8-core CPU with 4 performance cores and 4 efficiency cores
7-core GPU, 8-core GPU
16-core Neural Engine

Storage

256GB SSD or 512GB SSD (Configurable to: 512GB, 1TB, or 2TB)

Memory

8GB unified memory (Configurable to 16GB unified memory)

Display

24-inch 4.5K Retina display
4480-by-2520 resolution at 218 pixels per inch with support for 1 billion colors
500 nits brightness
Wide color (P3)
True Tone technology

Actual diagonal screen size is 23.5 in

Colors

Blue
Green
Pink
Silver
Yellow
Orange
Purple

Apple Documentation: https://support.apple.com/en-us/111895

iMac (Retina 5K, 27-inch, 2020)

iMac (Retina 5K, 27-inch, 2020) Technical Specifications

Processor

3.1GHz

3.1GHz 6‑core 10th-generation Intel Core i5, Turbo Boost up to 4.5GHz

3.3GHz

3.3GHz 6‑core 10th-generation Intel Core i5, Turbo Boost up to 4.8GHz
Configurable to 3.6GHz 10-core 10th-generation Intel Core i9, Turbo Boost up to 5.0GHz

3.8GHz

3.8GHz 8‑core 10th-generation Intel Core i7, Turbo Boost up to 5.0GHz
Configurable to 3.6GHz 10-core 10th-generation Intel Core i9, Turbo Boost up to 5.0GHz

Memory

3.1GHz

8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
Configurable to 16GB, 32GB, 64GB, or 128GB

3.3GHz

8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
Configurable to 16GB, 32GB, 64GB, or 128GB

3.8GHz

8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
Configurable to 16GB, 32GB, 64GB, or 128GB

Storage

3.1GHz
- 256GB SSD

3.3GHz
- 512GB SSD
- Configurable to 1TB or 2TB SSD

3.8GHz
- 512GB SSD
- Configurable to 1TB, 2TB, 4TB, or 8TB SSD

Graphics

3.1GHz
- AMD Radeon Pro 5300 with 4GB of GDDR6 memory
3.3GHz
- AMD Radeon Pro 5300 with 4GB of GDDR6 memory
3.8GHz
- AMD Radeon Pro 5500 XT with 8GB of GDDR6 memory
- Configurable to AMD Radeon Pro 5700 with 8GB of GDDR6 memory, AMD Radeon Pro 5700 XT with 16GB of GDDR6 memory

Display

5K Retina display
27-inch (diagonal) 5K Retina display
5120‑by‑2880 resolution with support for one billion colors
500 nits brightness
Wide color (P3)
True Tone technology
Configurable with nano-texture glass

Apple Documentation: https://support.apple.com/en-us/111913

iMac (Retina 5K, 27-inch, 2019)

iMac (Retina 5K, 27-inch, 2019) Technical Specifications

Processor

3.0GHz
- 3.0GHz 6‑core Intel Core i5 (Turbo Boost up to 4.1GHz)
3.1GHz
- 3.1GHz 6‑core Intel Core i5 (Turbo Boost up to 4.3GHz)
- Configurable to 3.6GHz 8-core Intel Core i9 (Turbo Boost up to 5.0GHz)
3.7GHz
- 3.7GHz 6‑core Intel Core i5 (Turbo Boost up to 4.6GHz)
- Configurable to 3.6GHz 8-core Intel Core i9 (Turbo Boost up to 5.0GHz)

Memory

3.0GHz
- 8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
- Configurable to 16GB or 32GB
3.1GHz
- 8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
- Configurable to 16GB, 32GB, or 64GB
3.7GHz
- 8GB (two 4GB) of 2666MHz DDR4 memory; four SO-DIMM slots, user accessible
- Configurable to 16GB, 32GB, or 64GB

Storage

3.0GHz
- 1TB Fusion Drive
- Configurable to 2TB Fusion Drive or 256GB, 512GB, or 1TB SSD
3.1GHz
- 1TB Fusion Drive
- Configurable to 2TB or 3TB Fusion Drive or 256GB, 512GB, or 1TB SSD
3.7GHz
- 2TB Fusion Drive
- Configurable to 3TB Fusion Drive or 512GB, 1TB, or 2TB SSD

Graphics

3.0GHz
- Radeon Pro 570X with 4GB of GDDR5 memory
3.1GHz
- Radeon Pro 575X with 4GB of GDDR5 memory
3.7GHz
- Radeon Pro 580X with 8GB of GDDR5 memory
- Configurable to Radeon Pro Vega 48 with 8GB of HBM2 memory

Display

Retina 5K display
27-inch (diagonal) Retina 5K display
5120‑by‑2880 resolution with support for one billion colors
500 nits brightness
Wide color (P3)

Apple Documentation: https://support.apple.com/en-us/111998

iMac (Retina 4K, 21.5-inch, 2019)

iMac (Retina 4K, 21.5-inch, 2019) Technical Specifications

Processor

3.6GHz
- 3.6GHz quad‑core Intel Core i3
- Configurable to 3.2GHz 6-core Intel Core i7, Turbo Boost up to 4.6GHz
3.0GHz
- 3.0GHz 6-core Intel Core i5 (Turbo Boost up to 4.1GHz)
- Configurable to 3.2GHz 6-core Intel Core i7, Turbo Boost up to 4.6GHz

Memory

3.6GHz
- 8GB of 2400MHz DDR4 memory
- Configurable to 16GB or 32GB
3.0GHz
- 8GB of 2666MHz DDR4 memory
- Configurable to 16GB or 32GB

Storage

3.6GHz
- 256GB SSD
- Configurable to 1TB Fusion Drive
3.0GHz
- 256GB SSD
- Configurable to 1TB Fusion Drive

Graphics

3.6GHz
- Radeon Pro 555X with 2GB of GDDR5 memory
3.0GHz
- Radeon Pro 560X with 4GB of GDDR5 memory
- Configurable to Radeon Pro Vega 20 with 4GB of HBM2 memory

Display

Retina 4K display
21.5-inch (diagonal) Retina 4K display
4096-by-2304 resolution with support for one billion colors
500 nits brightness
Wide color (P3)

Apple Documentation: https://support.apple.com/en-us/111963

iMac Pro (2017)

iMac Pro (2017) Technical Specifications

Processor

8-Core
- 3.2GHz Intel Xeon W
- Turbo Boost up to 4.2GHz
- 19MB cache
10-Core
- 3.0GHz Intel Xeon W
- Turbo Boost up to 4.5GHz
- 23.75MB cache

Configurable to:

14-Core
- 2.5GHz Intel Xeon W
- Turbo Boost up to 4.3GHz
- 33.25MB cache
18-Core
- 2.3GHz Intel Xeon W
- Turbo Boost up to 4.3GHz
- 42.75MB cache

Memory

32GB
- 32GB of 2666MHz DDR4 ECC memory
- Quad-channel memory controller

Configurable to:

64GB
- 64GB of 2666MHz DDR4 ECC memory
128GB
- 128GB of 2666MHz DDR4 ECC memory
256GB
- 256GB of 2666MHz DDR4 ECC memory

Storage

1TB SSD

Configurable to:

2TB SSD
4TB SSD

Display

27-inch (diagonal) Retina 5K display
5120‑by‑2880 resolution with support for one billion colors
500 nits brightness
Wide color (P3)

Apple Documentation: https://support.apple.com/en-us/111995

iMac (Retina 5K, 27-inch, 2017)

iMac (Retina 5K, 27-inch, 2017) Technical Specifications

Processor

3.4GHz
- 3.4GHz quad‑core Intel Core i5 (Turbo Boost up to 3.8GHz)
3.5GHz
- 3.5GHz quad‑core Intel Core i5 (Turbo Boost up to 4.1GHz)
- Configurable to 4.2GHz quad-core Intel Core i7 (Turbo Boost up to 4.5GHz)
3.8GHz
- 3.8GHz quad‑core Intel Core i5 (Turbo Boost up to 4.2GHz)
- Configurable to 4.2GHz quad-core Intel Core i7 (Turbo Boost up to 4.5GHz)

Memory

3.4GHz
- 8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessible
- Configurable to 16GB or 32GB
3.5GHz
- 8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessible
- Configurable to 16GB, 32GB, or 64GB
3.8GHz
- 8GB (two 4GB) of 2400MHz DDR4 memory; four SO-DIMM slots, user accessible
- Configurable to 16GB, 32GB, or 64GB

Storage

3.4GHz
- 1TB Fusion Drive
- Configurable to 2TB Fusion Drive or 256GB, 512GB, or 1TB SSD
3.5GHz
- 1TB Fusion Drive
- Configurable to 2TB or 3TB Fusion Drive or 256GB, 512GB, or 1TB SSD
3.8GHz
- 2TB Fusion Drive
- Configurable to 3TB Fusion Drive or 512GB, 1TB, or 2TB SSD

Graphics

3.4GHz
- Radeon Pro 570 with 4GB of VRAM
3.5GHz
- Radeon Pro 575 with 4GB of VRAM
3.8GHz
- Radeon Pro 580 with 8GB of VRAM

Display

Retina 5K display
27-inch (diagonal) Retina 5K display
5120‑by‑2880 resolution with support for one billion colors
500 nits brightness
Wide color (P3)

Apple Documentation: https://support.apple.com/en-us/111969

iMac (Retina 4K, 21.5-inch, 2017)

iMac (Retina 4K, 21.5-inch, 2017) Technical Specifications

Processor

3.0GHz
- 3.0GHz quad‑core Intel Core i5 (Turbo Boost up to 3.5GHz)
- Configurable to 3.6GHz quad-core Intel Core i7 (Turbo Boost up to 4.2GHz)
3.4GHz
- 3.4GHz quad-core Intel Core i5 (Turbo Boost up to 3.8GHz)
- Configurable to 3.6GHz quad-core Intel Core i7 (Turbo Boost up to 4.2GHz)

Memory

3.0GHz
- 8GB of 2400MHz DDR4 memory
- Configurable to 16GB
3.4GHz
- 8GB of 2400MHz DDR4 memory
- Configurable to 16GB or 32GB

Storage

3.0GHz
- 1TB (5400-rpm) hard drive
- Configurable to 1TB Fusion Drive or 256GB or 512GB SSD
3.4GHz
- 1TB Fusion Drive
- Configurable to 256GB, 512GB, or 1TB SSD

Graphics

3.0GHz
- Radeon Pro 555 with 2GB of VRAM
3.4GHz
- Radeon Pro 560 with 4GB of VRAM

Display

Retina 4K display
21.5-inch (diagonal) Retina 4K display
4096-by-2304 resolution with support for one billion colors
500 nits brightness
Wide color (P3)

Apple Documentation: https://support.apple.com/en-us/112026

Mac (21.5-inch, 2017)

iMac (21.5-inch, 2017) Technical Specifications

Model Identifier	iMac18,1
Processor	2.3GHz 2.3GHz dual‑core Intel Core i5, Turbo Boost up to 3.6GHz
Memory	2.3GHz 8GB of 2133MHz DDR4 memoryConfigurable to 16GB
Storage	1TB (5400-rpm) hard drive (Configurable to 1TB Fusion Drive or 256GB SSD)
Graphics	Intel Iris Plus Graphics 640
Display	21.5-inch (diagonal) LED-backlit display 1920‑by‑1080 resolution with support for millions of colors

Apple Documentation: https://support.apple.com/en-us/111921

iMac (Retina 5K, 27-inch, Late 2015)

iMac (Retina 5K, 27-inch, Late 2015) Technical Specifications

Processor

3.2GHz
- 3.2GHz quad‑core Intel Core i5 (Turbo Boost up to 3.6GHz)
3.2GHz
- 3.2GHz quad‑core Intel Core i5 (Turbo Boost up to 3.6GHz)
- Configurable to 4.0GHz quad-core Intel Core i7 (Turbo Boost up to 4.2GHz)
3.3GHz
- 3.3GHz quad‑core Intel Core i5 (Turbo Boost up to 3.9GHz)
- Configurable to 4.0GHz quad-core Intel Core i7 (Turbo Boost up to 4.2GHz)

Memory

8GB (two 4GB) of 1867MHz DDR3 memory; four SO-DIMM slots, user accessible
- Configurable to 16GB or 32GB

Storage

3.2GHz
- 1TB (7200-rpm) hard drive
- Configurable up to 3TB Fusion Drive or 256GB or 512GB of flash storage (SSD)
3.2GHz
- 1TB Fusion Drive
- Configurable up to 3TB Fusion Drive or 256GB, 512GB, or 1TB of flash storage (SSD)
3.3GHz
- 2TB Fusion Drive
- Configurable up to 3TB Fusion Drive or 256GB, 512GB, or 1TB of flash storage (SSD)

Graphics

3.2GHz
- AMD Radeon R9 M380 graphics processor with 2GB of GDDR5 memory
3.2GHz
- AMD Radeon R9 M390 graphics processor with 2GB of GDDR5 memory
3.3GHz
- AMD Radeon R9 M395 graphics processor with 2GB of GDDR5 memory
- Configurable to AMD Radeon R9 M395X with 4GB of GDDR5 memory

Display

27-inch (diagonal) Retina 5K display with IPS technology
5120‑by‑2880 resolution with support for millions of colors

Apple Documentation: https://support.apple.com/en-us/112035

iMac (Retina 4K, 21.5-inch, Late 2015)

iMac (Retina 4K, 21.5-inch, Late 2015) Technical Specifications

Model Identifier

iMac16,2

Processor

3.1GHz
- 3.1GHz quad-core Intel Core i5 (Turbo Boost up to 3.6GHz)
- Configurable to 3.3GHz quad-core Intel Core i7 (Turbo Boost up to 3.8GHz)

Memory

8GB of 1867MHz LPDDR3 onboard memory
- Configurable to 16GB

Storage

1TB (5400-rpm) hard drive
- Configurable up to 2TB Fusion Drive or 512GB of flash storage (SSD)

Graphics

Intel Iris Pro Graphics 6200

Display

21.5-inch (diagonal) Retina 4K display with IPS technology
4096-by-2304 resolution with support for millions of colors

Apple Documentation: https://support.apple.com/en-us/112034

iMac (21.5-inch, Mid 2014)

iMac (21.5-inch, Mid 2014) Technical Specifications

Model Identifier	iMac14,4
Compatible Last OS	macOS Big Sur
Processor	1.4Ghz: dual-core Intel Core i5 processor (Turbo Boost up to 2.7GHz) with 3MB shared L3 cache
Memory	8GB of 1600MHz LPDDR3 onboard memory
Storage	500GB (5400-rpm) hard drive: Configurable to 1TB hard drive, 1TB Fusion Drive, or 256GB of PCIe-based flash storage.
Graphics	Intel HD Graphics 5000
Display	21.5-inch (diagonal) LED-backlit display with IPS technology; 1920-by-1080 resolution with support for millions of colors

Apple Documentation: https://support.apple.com/en-us/112031

iMac (27-inch, Late 2013)

iMac (27-inch, Late 2013) Technical Specifications

Model Identifier	iMac14,2
Compatible Last OS	macOS Catalina
Processor	3.2GHz 3.2GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.6GHz) with 6MB L3 cache 3.4GHz 3.4GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.8GHz) with 6MB L3 cache Configurable to 3.5GHz quad-core Intel Core i7 (Turbo Boost up to 3.9GHz).
Memory	8GB (two 4GB) of 1600MHz DDR3 memory; four user-accessible SO-DIMM slots Configurable to 16GB or 32GB.
Storage	1TB (7200-rpm) hard drive Configurable to 3TB hard drive, 1TB or 3TB Fusion Drive, or 256GB, 512GB, or 1TB of flash storage.
Graphics	3.2GHz NVIDIA GeForce GT 755M graphics processor with 1GB of GDDR5 memory 3.4GHz NVIDIA GeForce GTX 775M graphics processor with 2GB of GDDR5 memory Configurable to NVIDIA GeForce GTX 780M with 4GB of GDDR5 memory.
Display	27-inch (diagonal) LED-backlit display with IPS technology; 2560-by-1440 resolution with support for millions of colors

iMac (21.5-inch, Late 2013)

iMac (21.5-inch, Late 2013) Technical Specifications

Model Identifier	iMac14,1
Compatible Last OS	macOS Catalina
Processor	2.7GHz 2.7GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.2GHz) with 4MB L3 cache 2.9GHz 2.9GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.6GHz) with 6MB L3 cache Configurable to 3.1GHz quad-core Intel Core i7 (Turbo Boost up to 3.9GHz).
Memory	8GB (two 4GB) of 1600MHz DDR3 memory (Configurable to 16GB)
Storage	1TB (5400-rpm) hard drive (Configurable to 1TB Fusion Drive or 256GB or 512GB of flash storage)

Apple Documentation: https://support.apple.com/en-us/111967

iMac (27-inch, Late 2012)

iMac (27-inch, Late 2012) Technical Specifications

Model Identifier	iMac13,2
Compatible Last OS	macOS Catalina
Processor	2.9GHz 2.9GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.6GHz) with 6MB L3 cache 3.2GHz 3.2GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.6GHz) with 6MB L3 cache Configurable to 3.4GHz quad-core Intel Core i7 (Turbo Boost up to 3.9GHz).
Memory	8GB (two 4GB) of 1600MHz DDR3 memory; four user-accessible SO-DIMM slots (Configurable to 16GB or 32GB)
Storage	1TB (7200-rpm) hard drive (Configurable to 3TB hard drive, 1TB or 3TB Fusion Drive, or 768GB of flash storage)
Graphics	2.9GHz NVIDIA GeForce GTX 660M graphics processor with 512MB of GDDR5 memory 3.2GHz NVIDIA GeForce GTX 675MX graphics processor with 1GB of GDDR5 memory Configurable to NVIDIA GeForce GTX 680MX with 2GB of GDDR5 memory.
Display	27-inch (diagonal) LED-backlit display with IPS technology 2560-by-1440 resolution with support for millions of colors

Apple Documentation: https://support.apple.com/en-us/112433

iMac (21.5-inch, Late 2012)

iMac (21.5-inch, Late 2012) Technical Specifications

Model Identifier	iMac13,1
Compatible Last OS	macOS Catalina
Processor	2.7GHz 2.7GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.2GHz) with 6MB L3 cache 2.9GHz 2.9GHz quad-core Intel Core i5 processor (Turbo Boost up to 3.6GHz) with 6MB L3 cache Configurable to 3.1GHz quad-core Intel Core i7 (Turbo Boost up to 3.9GHz).
Memory	8GB (two 4GB) of 1600MHz DDR3 memory (Configurable to 16GB)
Storage	2.7GHz 1TB (5400-rpm) hard drive 2.9GHz 1TB (5400-rpm) hard drive Configurable to 1TB Fusion Drive.
Graphics	2.7GHz NVIDIA GeForce GT 640M graphics processor with 512MB of GDDR5 memory 2.9GHz NVIDIA GeForce GT 650M graphics processor with 512MB of GDDR5 memory Video Support and Camera
Display	21.5-inch (diagonal) LED-backlit display with IPS technology 1920-by-1080 resolution with support for millions of colors

Apple Documentation: https://support.apple.com/en-us/112435

iMac (27-inch, Mid 2011)

iMac (27-inch, Mid 2011) Technical Specifications

Model Identifier	iMac12,2
Compatible Last OS	macOS High Sierra
Processor	2.7GHz quad-core Intel Core i5 with 6MB on-chip shared L3 cache 3.1GHz quad-core Intel Core i5 with 6MB on-chip shared L3 cache Configurable to 3.4GHz quad-core Intel Core i7
Memory	4GB (two 2GB) of 1333MHz DDR3 memory ( Configurable to 16GB)
Storage	2.7 GHz 1TB (7200 rpm) hard drive Configurable to 2TB hard drive or 256GB solid-state second drive. 3.1 GHz 1TB (7200 rpm) hard drive Configurable to 2TB hard drive or 256GB solid-state second drive.
Graphics	2.7 GHz AMD Radeon HD 6770M graphics processor with 512MB of GDDR5 memory 3.1 GHz AMD Radeon HD 6970M graphics processor with 1GB of GDDR5 memory Configurable to AMD Radeon HD 6970M with 2GB GDDR5
Display	27-inch (viewable) LED-backlit glossy widescreen TFT display with support for millions of colors Resolution: 2560 by 1440 pixels

Apple Documentation: https://support.apple.com/en-us/112569

iMac (21.5-inch, Mid 2011)

iMac (21.5-inch, Mid 2011) Technical Specifications

Model Identifier	iMac12,1
Compatible Last OS	macOS High Sierra
Processor	2.5GHz quad-core Intel Core i5 with 6MB on-chip shared L3 cache 2.7GHz quad-core Intel Core i5 with 6MB on-chip shared L3 cache Configurable to 2.8GHz quad-core Intel Core i7
Memory	4GB (two 2GB) of 1333MHz DDR3 memory (Configurable to 16GB)
Storage	2.5 GHz 500GB (7200 rpm) hard drive 2.7 GHz 1TB (7200 rpm) hard drive Configurable to 2TB hard drive or 256GB solid-state second drive
Graphics	2.5 GHz AMD Radeon HD 6750M graphics processor with 512MB of GDDR5 memory 2.7 GHz AMD Radeon HD 6770M graphics processor with 512MB of GDDR5 memory
Display	21.5-inch (viewable) LED-backlit glossy widescreen TFT display with support for millions of colors Resolution: 1920 by 1080 pixels

Apple Documentation: https://support.apple.com/en-us/111983

iMac (27-inch, Mid 2010)

iMac (27-inch, Mid 2010) Technical Specifications

Model Identifier	iMac11,3
Compatible Last OS	macOS High Sierra
Processor and Memory	3.2GHz Intel Core i3 processor with 4MB level 3 cache; supports Hyper-Threading 3.6GHz Intel Core i5 processor with 4MB level 3 cache; supports Hyper-Threading and Turbo Boost 2.8GHz Quad-Core Intel Core i5 processor with 8MB level 3 cache; supports Turbo Boost 2.93GHz Quad-Core Intel Core i7 processor with 8MB level 3 cache; supports Hyper-Threading and Turbo Boost 4GB (two 2GB SO-DIMMs) of 1333MHz DDR3 SDRAM; four SO-DIMM slots support up to 16GB
Graphics	3.2GHz ATI Radeon HD 5670 graphics processor with 512MB of GDDR3 memory 2.8GHz ATI Radeon HD 5750 graphics processor with 1GB of GDDR5 memory
Display	Built-in 27-inch (viewable) LED-backlit glossy widescreen TFT active-matrix liquid crystal display with IPS technology Resolution: 2560 by 1440 pixels Typical brightness: 375 cd/m2 Can be attached to a wall mount, articulating arm, or other VESA-compliant mounting solution using the optional VESA Mount Adapter Kit Millions of colors at all resolutions Typical viewing angle: 178° horizontal; 178° vertical 16:9 aspect ratio

iMac (21.5-inch, Mid 2010)

iMac (21.5-inch, Mid 2010) Technical Specifications

Model Identifier	iMac11,2
Compatible Last OS	macOS High Sierra
Processor and Memory	3.06GHz Intel Core i3 processor with 4MB level 3 cache; supports Hyper-Threading 3.2GHz Intel Core i3 processor with 4MB level 3 cache; supports Hyper-Threading 3.6GHz Intel Core i5 processor with 4MB level 3 cache; supports Hyper-Threading and Turbo Boost 4GB (two 2GB SO-DIMMs) of 1333MHz DDR3 SDRAM; four SO-DIMM slots support up to 16GB
Graphics	3.06GHz ATI Radeon HD 4670 graphics processor with 256MB of GDDR3 memory 3.2GHz ATI Radeon HD 5670 graphics processor with 512MB of GDDR3 memory
Display	Built-in 21.5-inch (viewable) LED-backlit glossy widescreen TFT active-matrix liquid crystal display with IPS technology Resolution: 1920 by 1080 pixels Typical brightness: 330 cd/m2 Millions of colors at all resolutions Typical viewing angle: 178° horizontal; 178° vertical 16:9 aspect ratio

iMac (27-inch, Late 2009)

iMac (27-inch, Late 2009) Technical Specifications

Model Identifier	iMac10,1
Compatible Last OS	macOS High Sierra

iMac (21.5-inch, Late 2009)

iMac (21.5-inch, Late 2009) Technical Specifications

Model Identifier	iMac10,1
Compatible Last OS	macOS High Sierra

iMac (24-inch, Early 2009)

iMac (24-inch, Early 2009) Technical Specifications

Model Identifier	iMac9,1
Compatible Last OS	OS X El Capitan

iMac (20-inch, Early 2009)

iMac (20-inch, Early 2009) Technical Specifications

Model Identifier	iMac9,1
Compatible Last OS	OS X El Capitan
Processor	2.66GHz, 2.93GHz, or 3.06GHz Intel Core 2 Duo processor 6MB shared L2 cache at full processor speed 1066MHz frontside bus

Apple > iMac Models