iMac Pro (Late 2017) vs iMac 21.5 (Retina 4K, Mid 2017)

iMac Pro (Late 2017) $4,999
iMac 21.5 (Retina 4K, Mid 2017) $1,299
Base Price (MSRP)
$4,999
Base Price (MSRP)
$1,299
CPU
Xeon W-2140B
CPU
Core i5-7400
GPU
Radeon Pro Vega 56
GPU
Radeon Pro 555
Memory
32GB
Memory
8GB
Storage
1TB
Storage
128GB
Display
27" LCD IPS 5120×2880
Display
21.5" LCD IPS 4096×2304
CPU Image
Xeon W-2140B
8 Cores
16 Threads
3.2GHz Clock
CPU Image
Core i5-7400
4 Cores
4 Threads
3GHz Clock
Xeon W-2140B vs Core i5-7400 Full Specs Comparison
GPU Image
Radeon Pro Vega 56
3584 Shaders
1250MHz
8GB HBM2
402.4GB/s Bandwidth
GPU Image
Radeon Pro 555
768 Shaders
850MHz
2GB GDDR5
81.6GB/s Bandwidth
N/A
0%
8.96 TFLOPS FP32
18%
N/A
0%
1.31 TFLOPS FP32
3%
Radeon Pro Vega 56 vs Radeon Pro 555 Full Specs Comparison
32GB
DDR4-2666
8GB
DDR4-2400
120 Tabs
24%
24 Tabs
5%
1TB
Soldered
PCIe 3.0 x4
Up to 2.5GB/s
128GB
Proprietary Apple 12+16 Pin
PCIe 3.0 x4
Up to 1.4GB/s
1,978 min 4K Video
49%
186 min 4K Video
5%
No Optical Drive
No Optical Drive
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27"
LCD IPS
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21.5"
LCD IPS
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Area
311.5 in² (2009.7 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
27ms GtG
Response Time
27ms GtG
Flicker
23000Hz
Flicker
23000Hz
Resolution
5120×2880
14.7 Million Pixels
218 PPI
Resolution
4096×2304
9.4 Million Pixels
219 PPI
LED Backlight
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1,100:1 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 1.4 Avg
dE 2.6 Max
dE 2.20 Greyscale
2.32 Gamma
6830K
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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Space Gray Magic Keyboard with Numeric Keypad
Magic Keyboard
Space Gray Magic Mouse 2
Magic Mouse 2
Not Included
Not Included
Not Included
Not Included
No Biometrics
No Biometrics
2
2
4
2
No Cellular
No Cellular
Wi-Fi 5 (802.11ac)
3 Stream
Up to 1300Mbps
Wi-Fi 5 (802.11ac)
3 Stream
Up to 1300Mbps
Bluetooth 4.2
Bluetooth 4.2
No Sensors
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No Sensors
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C422
Z170
Data
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4x USB 3.0 (5Gbps)
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4x Thunderbolt 3 (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 (10Gbps)
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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Card
1x SDXC Card UHS-II
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500W
185W
Not Included
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No Battery
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No Battery
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macOS 10.13 High Sierra
Windows
macOS 10.12 Sierra
Windows
Windows 10 (Latest)
Windows 10 (Latest)
Build Material
Aluminum
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Build Material
Aluminum
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Height
516 mm (20.3 in)
Width
650 mm (25.6 in)
Depth
203 mm (8 in)
Volume
68.13 L
Height
450 mm (17.7 in)
Width
528 mm (20.8 in)
Depth
175 mm (6.9 in)
Volume
41.63 L
Weight
9.752 kg (21.5 lb)
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Weight
5.67 kg (12.5 lb)
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CPU
Upgradable
CPU
Upgradable
GPU
Not Upgradable
GPU
Not Upgradable
Memory
Upgradable
Memory
Upgradable
Storage
Upgradable
Storage
Upgradable
Wi-Fi
Not Upgradable
Wi-Fi
Upgradable
Motherboard
Not Upgradable
Motherboard
Not Upgradable
Power Supply
Not 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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A1862
EMC 3144
iMacPro1,1
A1418
EMC 3069
iMac18,2
Change Comparison