iMac 24 (M1, Two Ports, Mid 2021) vs iMac 21.5 (Early 2019)

iMac 24 (M1, Two Ports, Mid 2021) $1,299
iMac 21.5 (Early 2019) $1,299
Base Price (MSRP)
$1,299
Base Price (MSRP)
$1,299
CPU
M1 (8C7G)
CPU
Core i3-8100
GPU
7-Core M1
GPU
Radeon Pro 555X
Memory
8GB
Memory
8GB
Storage
256GB
Storage
0GB + 1TB
Display
23.5" LCD IPS 4480×2520
Display
21.5" LCD IPS 4096×2304
CPU Image
M1 (8C7G)
8 Cores
8 Threads
3.2GHz Clock
CPU Image
Core i3-8100
4 Cores
4 Threads
3.6GHz Clock
M1 (8C7G) vs Core i3-8100 Full Specs Comparison
GPU Image
7-Core M1
896 Shaders
1278MHz
Shared Memory
GPU Image
Radeon Pro 555X
768 Shaders
907MHz
4GB GDDR5
94.4GB/s Bandwidth
19 FPS 1080p
16%
2.29 TFLOPS FP32
5%
N/A
0%
1.39 TFLOPS FP32
3%
7-Core M1 vs Radeon Pro 555X Full Specs Comparison
8GB
LPDDR4X-4266
8GB
DDR4-2666
24 Tabs
5%
24 Tabs
5%
256GB
Soldered
PCIe 3.0 x4
Up to 2.7GB/s Read
0GB + 1TB
2.5"
SATA 3
5400RPM
442 min 4K Video
11%
1,930 min 4K Video
48%
No Optical Drive
No Optical Drive
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23.5"
LCD IPS
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21.5"
LCD IPS
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Area
236 in² (1522.4 cm²)
16:9 Aspect Ratio
Area
197.5 in² (1274.3 cm²)
16:9 Aspect Ratio
Brightness
500 Nits
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Brightness
500 Nits
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Refresh Rate
60Hz
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Refresh Rate
60Hz
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Response Time
29ms GtG
Response Time
27ms GtG
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Flicker
23000Hz
Resolution
4480×2520
11.3 Million Pixels
219 PPI
Resolution
4096×2304
9.4 Million Pixels
219 PPI
LED Backlight
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1,400:1 Contrast
LED Backlight
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1,100:1 Contrast
Viewing Angles
178° Horizontal
178° Vertical
Viewing Angles
178° Horizontal
178° Vertical
Colour Depth
10-bit
Colour Depth
10-bit
Coverage
100% sRGB
99% DCI-P3
88% Adobe RGB
Coverage
100% sRGB
99% DCI-P3
88% Adobe RGB
Accuracy
dE 1.1 Avg
dE 2.0 Max
dE 1.50 Greyscale
2.16 Gamma
6730K
Accuracy
dE 1.4 Avg
dE 2.6 Max
dE 2.20 Greyscale
2.32 Gamma
6830K
Coating
Glossy Anti-Reflective
Fully Laminated
Coating
Glossy Anti-Reflective
Fully Laminated
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1080p
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720p
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Magic Keyboard
Magic Keyboard
Magic Mouse
Magic Mouse 2
Not Included
Not Included
Not Included
Not Included
No Biometrics
No Biometrics
6
2
3
2
No Cellular
No Cellular
Wi-Fi 6 (802.11ax)
2 Stream
Up to 1200Mbps
Wi-Fi 5 (802.11ac)
3 Stream
Up to 1300Mbps
Bluetooth 5.0
Bluetooth 4.2
No Sensors
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No Sensors
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Integrated Chipset
Z270
Data
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2x USB 4 (40Gbps)
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Data
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4x USB 3.0 (5Gbps)
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2x Thunderbolt 3 (40Gbps)
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Network
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1x Ethernet (1Gbps)
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Audio
1x Audio Jack
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Audio
1x Audio Jack
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Card
1x SDXC Card UHS-II
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External
185W
143W
15.90V
9.00A
Not Included
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MagSafe iMac
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2.0M (7 ft) Cable
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No Battery
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No Battery
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macOS 11 Big Sur
macOS 10.14 Mojave
Windows
Windows 10 (Latest)
Build Material
Aluminum
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Build Material
Aluminum
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Height
461 mm (18.1 in)
Width
547 mm (21.5 in)
Depth
147 mm (5.8 in)
Volume
37.07 L
Height
450 mm (17.7 in)
Width
528 mm (20.8 in)
Depth
175 mm (6.9 in)
Volume
41.63 L
Weight
4.459 kg (9.8 lb)
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Weight
5.579 kg (12.3 lb)
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CPU
Not Upgradable
CPU
Upgradable
GPU
Not Upgradable
GPU
Not Upgradable
Memory
Not Upgradable
Memory
Upgradable
Storage
Not Upgradable
Storage
Upgradable
Wi-Fi
Not Upgradable
Wi-Fi
Upgradable
Motherboard
Not Upgradable
Motherboard
Not Upgradable
Power Supply
Upgradable
Power Supply
Not Upgradable
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Storage Slots
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1x 2.5" Bay
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Memory Slots
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2x SO-DIMM
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A2439
EMC 3664
iMac21,2
A2116
EMC 3195
iMac19,2
Change Comparison