IMac (Apple silicon)
All-in-one desktop computer designed and built by Apple Inc. From Wikipedia, the free encyclopedia
The iMac with Apple silicon is a line of all-in-one desktop Macs made by Apple Inc. since 2021. The first major redesign of the iMac line since 2012, the case and internals were redesigned to use Apple's custom processors, starting with the M1 system on a chip. The Apple silicon iMac features a 24 inches (610 mm) screen in a thin aluminum enclosure, elevated off the resting surface by a foot, and comes in seven colors.
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iMac (24-inch, M1, 2021) in orange | |
| Developer | Apple Inc. |
|---|---|
| Type | All-in-one |
| Release date | May 21, 2021 |
| System on a chip | Apple M-series |
| Predecessor | iMac (Intel-based) |
| Related | Mac Mini, Mac Studio, Mac Pro |
Apple started shipping the first Apple silicon iMacs on May 21, 2021. The line was revised in 2023 to use the Apple M3 chip and in 2024 to use the Apple M4. Reception to the iMac has generally been positive; critics highlighted the design, ease of use, and portability as positive features, while the lack of ports and height adjustment, cost, and lack of a larger screen size were common criticisms.
Overview
Summarize
Perspective
The Apple silicon iMac is an all-in-one personal computer, with the computer components integrated into an enclosure with the display. The Apple silicon iMac is the first major redesign to the line since 2012. In lieu of the two previous size options—21.5 inches (550 mm) and 27 inches (690 mm)—the Apple silicon iMac comes in a single 23.5-inch (600 mm) (rounded to 24-inch) display size.[1][2] The computer is flat-backed and 0.45 inches (11 mm) thick, with half the volume and roughly 30 percent smaller footprint than the 21.5 inches (550 mm) iMac. As it does not fit in the shrunken enclosure, the power supply is located externally and connects magnetically to the computer.[2][3] The display tilts on a hinge attached to its non-removable metal foot; there is no way to adjust the display's height. A VESA mounting option is configurable at purchase.[4][5] USB ports are located on the back of the machine, while the headphone jack and Gigabit Ethernet port, due to their size being thicker than the case thickness, are located elsewhere—the Ethernet port on the power supply (dependent on configuration) and the 3.5-mm audio jack on the left edge of the iMac.[2][4][6]
The screen is a Retina display, with a resolution of 4480 x 2520 pixels.[7] It is surrounded by white bezels shrunk by roughly half compared to its predecessor.[1][2] The majority of the computer components are found in a small chin below the display.[2] The computer comes in seven colors—silver, blue, green, pink, yellow, orange, and purple—in a two-tone finish, with a lighter pastel tint on the front of the computer, and a darker shade on the back.[1][2] The included peripherals and power cords are color-matched to the finish, as are the macOS operating software accent color and wallpaper.[6] Above the display is a 1080p-resolution webcam, with image signal processing performed by the Apple silicon. The iMac captures audio through an array of three microphones and outputs sound through a six-speaker system that supports Dolby Atmos.[8]
The iMac comes in two different models. The cheaper models come with two Thunderbolt/USB4 ports next to the power button at the back edge of the computer[9] and lacks Gigabit Ethernet as standard. They also have lower-specification chips with fewer graphics processing unit (GPU) cores. The more expensive models add two USB-C ports, come with Gigabit Ethernet, has higher configurable storage options, and has a keyboard with Touch ID authentication. In early revisions, some colors were also exclusive to certain models.[7][8][10] The memory and storage are soldered and not upgradeable, while other parts such as the speakers, ports, and webcam are modular and can be replaced if defective.[11]
Release
Summarize
Perspective
On June 22, 2020, Apple CEO Tim Cook announced the Mac would transition from Intel processors to Apple-designed processors that use the ARM64 architecture, branded as Apple silicon. Apple announced a 24 inches (610 mm) iMac based on the Apple M1 system on a chip on April 20, 2021.[12] It was the first iMac available in multiple colors since the iMac G3, with Apple marketing manager Colleen Novielli saying the choice was made to make the new iMacs feel "light and optimistic"; CNET attributed the shift in part as a move away from minimalism and a return to nostalgia amid the work-from-home movement during the COVID-19 lockdowns.[13] Apple also suggested the variety of colors helped the machine feel at home in more settings, whereas the previous silver iMacs were found in offices.[14] Former Apple designer Jony Ive contributed to its development.[15]
The initial M1 iMacs featured 8-core processors with either 7 or 8 GPU cores, 256 GB solid-state drives, and 8 GB of random access memory, configurable up to 2 TB of storage and 16 GB of memory.[7] The iMacs shipped with a Magic Mouse 2 or Magic Trackpad 2 with a color-matching aluminum underside. It could be configured with one of three updated Magic Keyboards with rounded corners: a standard version, a version with a Touch ID sensor, and an extended layout version with a numeric keypad and Touch ID. The Magic Keyboards with Touch ID are compatible with other Mac computers with Apple silicon but initially only shipped with the iMac.[16]
Apple announced updated iMac models on October 30, 2023. These models featured the Apple M3 chip with 8 CPU cores and up to 10 GPU cores, faster Wi-Fi 6E and Bluetooth 5.3 connectivity, and up to 24 GB of memory.[17] The M3 chip adds support for improved graphics features, such as raytracing in hardware.[18] The design, pricing, and other features remained identical.[5] The line was revised again on October 28, 2024, with the Apple M4 chip. The M4 models feature modified colors, 16 GB memory as standard, an improved webcam that supports Center Stage, support two external displays, and come bundled with USB-C peripherals.[10][19]
Reception
Summarize
Perspective
The Apple silicon iMac received generally positive reviews from critics. Ars Technica's Samuel Axon and PCMag's Joe Osborne considered the iMac a return to the product line's roots as a simple computer for consumers.[2][20] Reviewing the M1 model, PCMag's Tom Brant suggested the new iMac could define the next decades of desktop computing.[14] Reviews often highlighted its role as an approachable computer for families.[21][22] The reduced weight and size of the iMac made it easy to transport, with Jason Snell saying that while no one would use the iMac as a laptop it was far more mobile than its predecessor.[6] In contrast Dan Seifert, writing for The Verge, questioned whether a "a simple all-in-one desktop computer is something most people want or need at this point".[5]
The colorful redesign was generally praised as stylish and well-considered,[8][18][22] with TechRadar's Matt Hanson writing that the "bold and modern" redesign had successfully refreshed a product that had become outdated.[23] Some reviewers felt that the white bezels were a step down from the black of its predecessors,[2][6][22][24] or that the bold look and bright colors were not for everyone.[25] Katie Collins from CNET said the design was a statement piece that served as a "symbol of hope" while working from home during the COVID-19 pandemic; she considered this to be part of an anti-minimalism trend and the end to "austerity" in product design.[13] Technology blogger John Gruber predicted its design would stand the test of time.[26] Some reviews likened the design to a large iPad on a stand.[11][27] Some reviews lamented the bulky external power brick, while others appreciated that the addition of ethernet on the brick allowed for reduced desktop clutter.[6][4][14] Other points of praise were the improved webcam, speakers, and microphones.[4][6][14][21]
The iMac's speed was positively noted,[28][29] with Engadget testing finding the machine's responsiveness waking from sleep mode or starting up welcome.[21] Monica Chin noted the iMac achieved higher single-core Geekbench performance scores than any previous iMac, including the iMac Pro.[8] Benchmarks and testing found the Apple silicon iMacs performed similarly to other Apple computers with the same chip.[14][24] The main weakness of the machines was noted as its graphics capabilities,[5][9][30] though some reviewers of the M3 models were surprised by its games performance.[28][29] Tom's Guide and Digital Trends found the entry-level iMac disappointingly limited and the added costs to add Touch ID unreasonable.[4][25] PCMag, USA Today and others felt the machine quickly became pricey for the specs, as a similarly-performing Mac mini could be had for half the price.[14][21][28][30]
Reviews found the iMac's display bright and clear,[14][21][29] although in bright environments the glossy screen could cause glare.[28][31] Wired and others criticized the removal of the larger 27-inch screen size, finding the smaller screen occasionally cramped.[32][5] The continued lack of height adjustment on the display was faulted.[9][21][22][25] Other complaints included the paltry number of ports and their placement,[4][14][29] and the low amount of starting memory and storage in the entry-level machines.[22]
The Apple Silicon iMacs pivoted the line back to a consumer focus and away from enthusiast and professional use cases, a role it had grown into during the Intel-powered iMac era alongside stagnation of Apple's Mac Pro lineup in the 2010s.[33] Snell found that the entry-level processor kept the iMac from being a choice for users who needed more power,[6] and some critics wished for a higher-end and larger "iMac Pro".[5][25][30]
Specifications
| Model | 24-inch, Two Ports, 2021 | 24-inch, Four Ports, 2021 | 24-inch, Two Ports, 2023 | 24-inch, Four Ports, 2023 | 24-inch, Two Ports, 2024 | 24-inch, Four Ports, 2024 | ||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic Info | Hardware Strings | iMac21,2 | iMac21,1 | Mac15,4 | Mac15,5 | Mac16,2 | Mac16,3 | |||||||||||||||||||||||||||||||
| Model number | A2439 | A2438 | A2874 | A2873 | A3247 | A3137 | ||||||||||||||||||||||||||||||||
| Part number | MJV93, MJV83, MJVA3, MGTF3 | MGPK3, MGPH3, MGPM3, MGPC3, MGPF3, MGPR3, MGPP3 | MGPL3, MGPJ3, MGPN3, MGPD3, MGPG3, MGPT3, MGPQ3 | MQRC3, MQRA3, MQRD3, MQR93 | MQRQ3, MQRN3, MQRT3, MQRJ3, MQRL3, MQRX3, MQRV3 | MQRR3, MQRP3, MQRU3, MQRK3, MQRM3, MQRY3, MQRW3 | MWUF3, MWUE3, MWUG3, MWUC3, MWUD3, MWUJ3, MWUH3 | MWV13, MWUY3, MWV43, MWUU3, MWUW3, MWV83, MWV63 | MWV33, MWV03, MWV53, MWUV3, MWUX3, MWV93, MWV73 | MD2T4, MD2Q4, MD2U4, MCR24, MD2P4, MD2W4, MD2V4 | ||||||||||||||||||||||||||||
| Date | Announced | April 20, 2021 | October 30, 2023 | October 28, 2024 | ||||||||||||||||||||||||||||||||||
| Released | May 21, 2021 | November 7, 2023 | October 30, 2024 | |||||||||||||||||||||||||||||||||||
| Discontinued | October 30, 2023 | October 28, 2024 | In production | |||||||||||||||||||||||||||||||||||
| Unsupported | Supported | |||||||||||||||||||||||||||||||||||||
| Operating System | Initial | macOS Big Sur 11.3 | macOS Ventura 13.5 | macOS Sequoia 15.0 | ||||||||||||||||||||||||||||||||||
| Latest | macOS Sequoia 15.4 | |||||||||||||||||||||||||||||||||||||
| Colors | ||||||||||||||||||||||||||||||||||||||
| Dimensions | Height | 18.1 in (46 cm) | ||||||||||||||||||||||||||||||||||||
| Width | 21.5 in (55 cm) | |||||||||||||||||||||||||||||||||||||
| Depth | 5.8 in (15 cm) | |||||||||||||||||||||||||||||||||||||
| Weight | 9.83 lb (4.46 kg) | 9.88 lb (4.48 kg) | 9.75 lb (4.42 kg) | 9.87 lb (4.48 kg) | 9.74 lb (4.42 kg) | 9.79 lb (4.44 kg) | ||||||||||||||||||||||||||||||||
| Secure Authentication | Touch ID | Requires Magic Keyboard with Touch ID | Yes | Requires Magic Keyboard with Touch ID | Yes | Requires Magic Keyboard with Touch ID | Yes | |||||||||||||||||||||||||||||||
| Display | Size | Diagonal | 23.5 in (600 mm) | |||||||||||||||||||||||||||||||||||
| Vertical-by-Horizontal | 11.52 by 20.48 in (293 by 520 mm) | |||||||||||||||||||||||||||||||||||||
| Resolution | Vertical-by-Horizontal | 4480 × 2520 | ||||||||||||||||||||||||||||||||||||
| Density | 218 ppi | |||||||||||||||||||||||||||||||||||||
| Aspect Ratio | 16:9 | |||||||||||||||||||||||||||||||||||||
| Supported scaled resolutions |
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| Technology | Retina Display with IPS technology | |||||||||||||||||||||||||||||||||||||
| Backlight | LED-backlit | |||||||||||||||||||||||||||||||||||||
| Nano-texture configuration | No | Yes | ||||||||||||||||||||||||||||||||||||
| Refresh Rate | Minimum | 60 Hz | ||||||||||||||||||||||||||||||||||||
| Maximum | 60 Hz | |||||||||||||||||||||||||||||||||||||
| ProMotion Display | No | |||||||||||||||||||||||||||||||||||||
| Supported Fixed Refresh Rate | — | |||||||||||||||||||||||||||||||||||||
| Brightness and Contrast | SDR Max brightness | 500 nits | ||||||||||||||||||||||||||||||||||||
| XDR Max brightness | — | |||||||||||||||||||||||||||||||||||||
| Contrast ratio (typical) | 1,400:1 | |||||||||||||||||||||||||||||||||||||
| Color | Full sRGB | Yes | ||||||||||||||||||||||||||||||||||||
| Wide Color (P3) | Yes | |||||||||||||||||||||||||||||||||||||
| Color Depth | 10-bit (FRC) with 1 billion colors | |||||||||||||||||||||||||||||||||||||
| True Tone | Yes | |||||||||||||||||||||||||||||||||||||
| Night Shift | Yes | |||||||||||||||||||||||||||||||||||||
| Performance | Cooling System | Single-fan cooling system with aluminum heat spreader attached on processor | Dual-fan cooling system with aluminum heat spreader attached on processor | Single-fan cooling system with aluminum heat spreader attached on processor | Dual-fan cooling system with aluminum heat spreader attached on processor | Single-fan cooling system with aluminum heat spreader attached on processor | Dual-fan cooling system with aluminum heat spreader attached on processor | |||||||||||||||||||||||||||||||
| Chip | Chip Name | Apple M1 | Apple M3 | Apple M4 | ||||||||||||||||||||||||||||||||||
| Technology Node | 5 nm (N5) | 3 nm (N3B) | 3 nm (N3E) | |||||||||||||||||||||||||||||||||||
| Bit | 64-bit | |||||||||||||||||||||||||||||||||||||
| Total CPU Cores | 8 | 10 | ||||||||||||||||||||||||||||||||||||
| High-performance Cores | 4 × 3.20 GHz | 4 × 4.05 GHz | 4 × 4.41 GHz | |||||||||||||||||||||||||||||||||||
| Energy-efficiency Cores | 4 × 2.06 GHz | 4 × 2.75 GHz | 4 × 2.89 GHz | 6 × 2.89 GHz | ||||||||||||||||||||||||||||||||||
| Online Configuration | — | |||||||||||||||||||||||||||||||||||||
| Graphics Processor | Apple G13G | Apple G15G | Apple G16G | |||||||||||||||||||||||||||||||||||
| Total GPU Cores | 7 | 8 | 10 | 8 | 10 | |||||||||||||||||||||||||||||||||
| GPU Family | Apple GPU Family 7 | Apple GPU Family 9 | ||||||||||||||||||||||||||||||||||||
| Hardware-accelerated Ray Tracing | No | Yes | ||||||||||||||||||||||||||||||||||||
| Metal Support | Metal 3 | |||||||||||||||||||||||||||||||||||||
| Online Configuration | — | |||||||||||||||||||||||||||||||||||||
| Neural Engine | 16-core (11 TOPS FP16) | 16-core (18 TOPS FP16) | 16-core (38 TOPS INT8) | |||||||||||||||||||||||||||||||||||
| Media Engine | Hardware-accelerated H.264, HEVC, ProRes and ProRes RAW | Hardware-accelerated H.264, HEVC, ProRes and ProRes RAW AV1 decode | ||||||||||||||||||||||||||||||||||||
| Apple Intelligence | Yes | |||||||||||||||||||||||||||||||||||||
| Unified Memory | Memory Type | LPDDR4X-4266 (2133 MHz) | LPDDR5-6400 (3200 MHz) | LPDDR5X-7500 (3750 MHz) | ||||||||||||||||||||||||||||||||||
| Memory Bus Width | 128-bit | |||||||||||||||||||||||||||||||||||||
| Memory Bandwidth | 68.3 GB/s | 102.4 GB/s | 120 GB/s | |||||||||||||||||||||||||||||||||||
| Memory Size | 8 GB | 16 GB | 24 GB | |||||||||||||||||||||||||||||||||||
| Online Configuration | 16 GB | 16 GB 24 GB |
24 GB | 24 GB 32 GB |
32 GB | |||||||||||||||||||||||||||||||||
| Storage | Storage Type | PCIe 4.0-based SSD | ||||||||||||||||||||||||||||||||||||
| Storage Speed | Up to 3.3 GB/s read speed | |||||||||||||||||||||||||||||||||||||
| Storage Size | 256 GB | 512 GB | 256 GB | 512 GB | 256 GB | 512 GB | ||||||||||||||||||||||||||||||||
| Online Configuration | 512 GB 1 TB |
512 GB 1 TB 2 TB |
1 TB 2 TB |
512 GB 1 TB |
512 GB 1 TB 2 TB |
1 TB 2 TB |
512 GB 1 TB |
512 GB 1 TB 2 TB |
1 TB 2 TB | |||||||||||||||||||||||||||||
| Connector | Ethernet | Type | — | Gigabit Ethernet port with RJ-45 connector | — | Gigabit Ethernet port with RJ-45 connector | — | Gigabit Ethernet port with RJ-45 connector | ||||||||||||||||||||||||||||||
| Online Configuration | Gigabit Ethernet port with RJ-45 connector | — | Gigabit Ethernet port with RJ-45 connector | — | Gigabit Ethernet port with RJ-45 connector | — | ||||||||||||||||||||||||||||||||
| USB-C/Thunderbolt | Two Thunderbolt/USB 4 USB-C ports supporting charging and DisplayPort protocols among others | Two Thunderbolt/USB 4 USB-C ports supporting charging and DisplayPort protocols among others and two USB-C ports supporting charging | Two Thunderbolt/USB 4 USB-C ports supporting charging and DisplayPort protocols among others | Two Thunderbolt/USB 4 USB-C ports supporting charging and DisplayPort protocols among others and two USB-C ports supporting charging | Two Thunderbolt/USB 4 USB-C ports supporting charging and DisplayPort protocols among others | Four Thunderbolt 4 USB-C ports supporting charging and DisplayPort protocols among others | ||||||||||||||||||||||||||||||||
| Transmission Speed | Up to 40 Gbit/s transmission speed (Thunderbolt 3 or USB 4) | Up to 40 Gbit/s transmission speed (Thunderbolt 3 or USB 4) Up to 10 Gbit/s transmission speed (USB-C) |
Up to 40 Gbit/s transmission speed (Thunderbolt 3 or USB 4) | Up to 40 Gbit/s transmission speed (Thunderbolt 3 or USB 4) Up to 10 Gbit/s transmission speed (USB-C) |
Up to 40 Gbit/s transmission speed (Thunderbolt 4 or USB 4) | |||||||||||||||||||||||||||||||||
| External Display Support[34] [note 1] | Maximum display | 1 | 2 | |||||||||||||||||||||||||||||||||||
| One external display |
|
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| Two external displays | — |
| ||||||||||||||||||||||||||||||||||||
| Connectivity | Wi-Fi | Wi-Fi 6 (802.11a/b/g/n/ac/ax) | Wi-Fi 6E (802.11a/b/g/n/ac/ax) | |||||||||||||||||||||||||||||||||||
| Bluetooth | Bluetooth 5.0 Bluetooth 5.3 (macOS Sonoma and later) |
Bluetooth 5.3 | ||||||||||||||||||||||||||||||||||||
| Input | Keyboard | Type | Magic Keyboard with (scissor-switch) mechanism | Magic Keyboard with Touch ID with (scissor-switch) mechanism | Magic Keyboard with (scissor-switch) mechanism | Magic Keyboard with Touch ID with (scissor-switch) mechanism | Magic Keyboard with (scissor-switch) mechanism | Magic Keyboard with Touch ID with (scissor-switch) mechanism | ||||||||||||||||||||||||||||||
| Number of keys | 78 (U.S.) or 79 (ISO) | |||||||||||||||||||||||||||||||||||||
| Arrow keys | 4 arrow keys | |||||||||||||||||||||||||||||||||||||
| Function keys | With full-height | |||||||||||||||||||||||||||||||||||||
| Charging port | Lightning | USB-C | ||||||||||||||||||||||||||||||||||||
| Online Configuration | Magic Keyboard with Touch ID Magic Keyboard with Touch ID and Numeric Keypad |
Magic Keyboard with Touch ID and Numeric Keypad | Magic Keyboard with Touch ID Magic Keyboard with Touch ID and Numeric Keypad |
Magic Keyboard with Touch ID and Numeric Keypad | Magic Keyboard with Touch ID and Numeric Keypad | |||||||||||||||||||||||||||||||||
| Trackpad or mouse | Type | Magic Mouse | ||||||||||||||||||||||||||||||||||||
| Charging port | Lightning | USB-C | ||||||||||||||||||||||||||||||||||||
| Online Configuration | Magic Trackpad | |||||||||||||||||||||||||||||||||||||
| Camera | Resolution | 1080p FaceTime HD | 12 MP camera with 1080p FaceTime HD | |||||||||||||||||||||||||||||||||||
| Advanced image signal processor with computational video | Yes | |||||||||||||||||||||||||||||||||||||
| Center Stage and Desk View | No | Yes | ||||||||||||||||||||||||||||||||||||
| Audio | Speakers | High-fidelity six-speakers | ||||||||||||||||||||||||||||||||||||
| Force-cancelling woofers | Yes | |||||||||||||||||||||||||||||||||||||
| Wide stereo sound | Yes | |||||||||||||||||||||||||||||||||||||
| Dolby Atmos playback | Yes | |||||||||||||||||||||||||||||||||||||
| Dolby Atmos with built-in speakers | Yes | |||||||||||||||||||||||||||||||||||||
| Spatial Audio with dynamic head tracking | Yes | |||||||||||||||||||||||||||||||||||||
| Microphone | Studio-quality three-mic array with high signal-to-noise ratio and directional beamforming | |||||||||||||||||||||||||||||||||||||
| 3.5 mm jack | Yes | With advanced support for high-impedance headphones | ||||||||||||||||||||||||||||||||||||
| Power | Power supply | 143 W | ||||||||||||||||||||||||||||||||||||
| Total greenhouse gas emissions | 481 kg CO2e [35] | 486 kg CO2e | 511 kg CO2e | 359 kg CO2e [36] | [data missing] | 389 kg CO2e | 346 kg CO2e [37] | [data missing] | 391 kg CO2e | |||||||||||||||||||||||||||||
Software and operating systems
The macOS operating system has been pre-installed on all Apple silicon iMac computers since release, starting with version macOS Big Sur, which is the first release of macOS that can run on Apple Silicon Macs.
| OS release | M1, 2021 | M3, 2023 | M4, 2024 |
|---|---|---|---|
| 11 Big Sur | 11.3 | — | — |
| 12 Monterey |  |
— | — |
| 13 Ventura | |
13.5 | — |
| 14 Sonoma | |
|
— |
| 15 Sequoia | |
|
15.1 |
Timeline of iMac models
| Timeline of iMac and eMac models |
|---|
 |
Notes
- 5K at 60Hz is equivalent to 4K at 100Hz, 6K at 60Hz is equivalent to 4K at 144Hz, 8K at 60Hz is equivalent to 4K at 240Hz
References
External links
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