Here is a side by side comparison between Dell Inspiron 27 7790 All-in-One and Dell Inspiron 27 7777 All-in-One specs including price, processors, memory, graphics, storage, ports, and more.
1920 x 108081 PPI16:9250 nits1000:172% NTSC60HzAnti-Glare14.25W
27” FHD with Touch
1920 x 108081 PPI16:9250 nits1000:172% NTSC60HzAnti-Glare14.25W
27” FHD Non-Touch
1920 x 108081 PPI16:960HzAnti-Glare
27” FHD with Touch
1920 x 108081 PPI16:960HzAnti-Glare
27” UHD Non-Touch
3840 x 2160163 PPI16:960HzAnti-Glare
Exterior
Dell Inspiron 27 7790 All-in-One
Dell Inspiron 27 7777 All-in-One
Size Comparison
Dimensions
24.08 x 15.56 x 1.65 inches (611.70 x 395.40 x 42 mm)
Open Pop-Up Camera Height: 1.08" (27.36 mm)
24.17 x 15.31 x 2.28 inches (614 x 389 x 58 mm)
Weight
Starting at 15.74 lb (7.14 kg)
Starting at 17.42 lb (7.90 kg)
Colors
SilverBlack
Black
Keyboard and Trackpad
Keyboard
White Dell KB216 Wired Keyboard
Black Dell KB216 Wired Keyboard
Mouse
White Dell MS 116 Wired Mouse
Black Dell MS 116 Wired Mouse
Keyboard
Standard Dell KB216 Wired Keyboard
Mouse
Standard Dell MS 116 Wired Mouse
Ports
Rear
1 x USB-C
USB 3.2 Gen 2 (10 Gbps).
4 x USB-A
1 x USB 2.0 (480 Mbps) with Power on/Wake-up support.
1 x USB 3.2 Gen 1 (5 Gbps).
1 x USB 3.2 Gen 1 (5 Gbps) with Power on/Wake-up support.
1 x USB 3.2 Gen 1 (5 Gbps) with PowerShare.
2 x HDMI
1 x HDMI-out 1.4b port
1 x HDMI-in port
1 x SD-card slot
Full-size SD Card Reader 3.0.
1 x RJ45
Gigabit Ethernet port.
1 x Audio Jack
3.5mm universal headphone jack.
1 x Kensington security-cable slot
1 x Power Connector
4.5mm x 2.99mm DC-in adapter port.
Left
1 x USB-C
USB 3.2 Gen 1 (5 Gbps).
1 x USB-A
USB 3.2 Gen 1 (5 Gbps) with PowerShare.
1 x Headset port
3.5mm jack.
1 x SD-card slot
Full-size SD Card Reader 3.0.
Rear
4 x USB-A
2 x USB 2.0 (480 Mbps) with Power on/Wake-up support.
2 x USB 3.2 Gen 1 (5 Gbps).
2 x HDMI
1 x HDMI-out 1.4 port
1 x HDMI-in 1.4 port
1 x RJ45
Gigabit Ethernet.
1 x Audio Jack
3.5mm universal headphone jack.
1 x Kensington security-cable slot
1 x Power Connector
4.5mm x 2.99mm DC-in adapter port.
Chasis
Dell Inspiron 27 7790 All-in-One
Dell Inspiron 27 7777 All-in-One
Form Factor
All-in-One (27-inches)
All-in-One (27 inches)
Power Supply
90W
19.50 VDC4.62 A
130W
19.50 VDC6.70 A
130W
19.50 VDC6.70 A
180W
19.50 VDC9.23 A
Internal Specs
Dell Inspiron 27 7790 All-in-One
Dell Inspiron 27 7777 All-in-One
Chipset
Integrated Chipset
Intel H310 Chipset
Processor
10th Gen Intel® Core™ i3-10110U
2C/4T, 2.10 → 4.10 GHz, 4MB SmartCache, 15W
10th Gen Intel® Core™ i5-10210U
4C/8T, 1.60 → 4.20 GHz, 6MB SmartCache, 15W
10th Gen Intel® Core™ i7-10510U
4C/8T, 1.80 → 4.90 GHz, 8MB SmartCache, 15W
8th Gen Intel® Core™ i3-8100T
4C/4T, 3.10 GHz, 6MB SmartCache, 35W
8th Gen Intel® Core™ i5-8400T
6C/6T, 1.70 → 3.30 GHz, 9MB SmartCache, 35W
8th Gen Intel® Core™ i7-8700T
6C/12T, 2.40 → 4.00 GHz, 12MB SmartCache, 35W
Integrated Graphics
10th Gen Intel® Core™ i3-10110U
Intel® UHD Graphics
23 Execution Units, 300 → 1000 MHz
10th Gen Intel® Core™ i5-10210U
Intel® UHD Graphics
24 Execution Units, 300 → 1100 MHz
10th Gen Intel® Core™ i7-10510U
Intel® UHD Graphics
24 Execution Units, 300 → 1150 MHz
8th Gen Intel® Core™ i3-8100T
Intel® UHD Graphics 630
23 Execution Units, 350 → 1100 MHz
8th Gen Intel® Core™ i5-8400T
Intel® UHD Graphics 630
24 Execution Units, 350 → 1050 MHz
8th Gen Intel® Core™ i7-8700T
Intel® UHD Graphics 630
24 Execution Units, 350 → 1200 MHz
Discrete Graphics
Optional NVIDIA® GeForce® MX 110 - 2GB GDDR5.
Optional NVIDIA® GeForce® GTX 1050 - 4GB GDDR5.
Memory
Memory Slots: 2 x SO-DIMM slots
Memory Type: Single or Dual Channel DDR4 Memory
Memory Speed:
2666MHz
Memory Per Slot:
4GB8GB16GB
Max Memory:
32GB
Memory Slots: 2 x SO-DIMM slots
Memory Type: Single or Dual Channel DDR4 Memory
Memory Speed:
2666MHz
Memory Per Slot:
4GB8GB16GB
Max Memory:
32GB
Storage
Up to
2TB
2.5-inch HDD
SATA AHCI 6 Gbps.
Up to
1TB
M.2 SSD
PCIe Gen 3.0 x4 NVMe, up to 32 Gbps.
Up to
2TB
2.5-inch HDD
SATA AHCI 6 Gbps.
Up to
1TB
M.2 SSD
PCIe Gen 3.0 x4 NVMe, up to 32 Gbps.
Slots
Expansion Slots
No Expansion slot
SATA
1 x 2.5” HDD Connector
M.2
1 x M.2 2230 slot
For WiFi and Bluetooth combo card
1 x M.2 2230/2242 slot
For NVMe PCIe Gen 3 x4 SSD.
Expansion Slots
No Expansion slot
SATA
1 x 2.5” HDD Connector
M.2
1 x M.2 2230 slot
For WiFi and Bluetooth combo card
1 x M.2 2230/2242 slot
For NVMe PCIe Gen 3 x4 SSD.
Connectivity
Dell Inspiron 27 7790 All-in-One
Dell Inspiron 27 7777 All-in-One
Wi-Fi
Intel 9462
Up to 433 MbpsDual band 2.4 GHz/5 GHzWiFi-5 (802.11ac)Bluetooth 5.0
Intel AX200
Up to 2400 MbpsDual band 2.4 GHz/5 GHzWiFi-6 (802.11ax)Bluetooth 5.0
Wi-Fi 5
Up to 867 MbpsDual band 2.4 GHz/5 GHzWiFi-5 (802.11ac)Bluetooth 5.0
The Dell Inspiron 27 7790 All-in-One is a newer system that was released in 2019, while the Dell Inspiron 27 7777 All-in-One was released a year earlier in 2018. Both systems share the same all-in-one form factor that combines all components and a built-in monitor into one package.
Processor
The Central Processing Unit (CPU) is like the brains of your desktop computer. Its performance determines how fast and responsive your PC is. Generally, a processor with newer architecture, more CPU cores, higher TDP (measured in W), and faster clock speed (measured in GHz) tends to be more expensive and run faster than others with older architecture, fewer CPU cores, lower TDP, and lower clock speed.
For Dell Inspiron 27 7790 All-in-One, you have options to configure it with a 15W 10th Generation Intel Comet Lake dual-core Intel Core i3-10110U up to a 15W quad-core Intel Core i7-10510U with a boost speed up to 4.90 GHz.
While Dell Inspiron 27 7777 All-in-One has configurations with a 35W 8th Generation Intel Coffee Lake quad-core Intel Core i3-8100T up to a 35W 6-core Intel Core i7-8700T with a boost speed up to 4.00 GHz.
Memory
The Random Access Memory or RAM is the super-fast and temporary storage used to handle all active tasks, apps, and games that will go away when your PC turns off. The more memory your PC has, the better multitasking your PC can handle without having to reload data from slower permanent storage that includes the hard disk drive or solid-state drive.
Both PCs have the same amount of two RAM slots meaning that you upgrade later if you are unsatisfied with the amount of memory on your PC. You can upgrade memory on both systems up to 32GB of 2666MHz dual-channel DDR4 memory.
Ports
Computer ports are the interface for connecting your PC to its peripheral devices or other PCs. The most common peripherals are keyboard, mouse, monitor, flash drive, speaker, and printer. Most of them use Universal Serial Bus (USB) as their connection to your computer. So the PC with more USB ports can connect to more peripherals at the same time.
There is a total number of 5 USB ports available on the Dell Inspiron 27 7790 All-in-One, one less than the Dell Inspiron 27 7777 All-in-One that has 6 USB ports. On top of the number of USB ports, the type and version of each USB port are also necessary for determining how fast it is.
The Dell Inspiron 27 7790 All-in-One has four USB Type-A ports and one USB Type-C port. It has one port that supports USB 2.0 (480 Mbps), three ports that support USB 3.2 Gen 1 (5 Gbps), and one port that supports USB 3.2 Gen 2 (10 Gbps).
For Dell Inspiron 27 7777 All-in-One, it has five USB Type-A ports and one USB Type-C port. The PC has two ports that support USB 2.0 (480 Mbps) and four ports that support USB 3.2 Gen 1 (5 Gbps).
