Dell XPS 13 7390 vs. Lenovo Legion Slim 7i (15”, Intel, 2020): Which is better?

Here is a side by side comparison between Dell XPS 13 7390 and Lenovo Legion Slim 7i (15”, Intel, 2020) specs including CPU, RAM, storage, battery, display, and more.

Dell XPS 13 7390 Pros

Reasons that Dell XPS 13 7390 is better than Lenovo Legion Slim 7i (15”, Intel, 2020).

About 35% lighter

Dell XPS 13 7390 weighed 2.7 pounds, 35% lighter than the 4.1 pounds Lenovo Legion Slim 7i (15”, Intel, 2020).

WeightDell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Pound
2.7 lbs.
4.1 lbs.
Kilogram
1.22 kg
1.86 kg

Lenovo Legion Slim 7i (15”, Intel, 2020) Pros

Reasons that Lenovo Legion Slim 7i (15”, Intel, 2020) is better than Dell XPS 13 7390.

Newer manufacturing

2020 vs. 2019

Significantly faster CPU performance

Intel Core i9-10980HK inside Lenovo Legion Slim 7i (15”, Intel, 2020) has a 46% better multi-core CPU performance score than the Intel Core i7-10710U inside Dell XPS 13 7390.

Geekbench 5 multi-core score
Lenovo Legion Slim 7i (15”, Intel, 2020) - Intel Core i9-10980HK
7,013
Lenovo Legion Slim 7i (15”, Intel, 2020) - Intel Core i7-10875H
6,874
Lenovo Legion Slim 7i (15”, Intel, 2020) - Intel Core i7-10870H
6,596
Lenovo Legion Slim 7i (15”, Intel, 2020) - Intel Core i7-10750H
5,412
Dell XPS 13 7390 - Intel Core i7-10710U
4,786
Lenovo Legion Slim 7i (15”, Intel, 2020) - Intel Core i5-10300H
3,747
Dell XPS 13 7390 - Intel Core i7-10510U
2,942
Dell XPS 13 7390 - Intel Core i5-10210U
2,933
Dell XPS 13 7390 - Intel Core i3-10110U
1,866
Supports larger memory

Lenovo Legion Slim 7i (15”, Intel, 2020) supports a larger memory capacity than the Dell XPS 13 7390. It supports up to 32GB versus 16GB of system memory on the Dell XPS 13 7390.

Max system memory size
Lenovo Legion Slim 7i (15”, Intel, 2020)
32 GB
Dell XPS 13 7390
16 GB
Supports faster memory

Lenovo Legion Slim 7i (15”, Intel, 2020) supports a faster memory speed than the Dell XPS 13 7390. It supports up to 3200MHz versus 2133MHz of system memory on the Dell XPS 13 7390.

Memory type and speed
Lenovo Legion Slim 7i (15”, Intel, 2020) - DDR4
3,200 MHz
Dell XPS 13 7390 - LPDDR3
2,133 MHz
Upgradable memory

Lenovo Legion Slim 7i (15”, Intel, 2020) comes with one SODIMM slot that allow you to replace or upgrade when needed. On the flip side, you can't upgrade RAM on the Dell XPS 13 7390 since it has onboard memory.

MemoryDell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Slots
Onboard
x0,1
TypeLPDDR3DDR4
Supports discrete graphics

Configurable up to NVIDIA GeForce RTX 2060 6GB GDDR6 with Max-Q vs. integrated

17% larger display

Lenovo Legion Slim 7i (15”, Intel, 2020) has a 15.6-inch screen size 17% larger than the 13.3-inch Dell XPS 13 7390.

Display size
Lenovo Legion Slim 7i (15”, Intel, 2020)
15.6-inch
Dell XPS 13 7390
13.3-inch

Prices

Here are the latest price updates and offers for both devices.

Dell XPS 13 7390 Price
Dell XPS 7390 Laptop PC 13.4 inch FHD Non-Touch Laptop PC, Intel Core i7-10710U 10th Gen Processor, 16GB Ram, 256GB NVMe SSD, Webcam, Thunderbolt, Windows 11 Pro (Renewed)
Dell XPS 7390 Laptop PC 13.4 inch FHD Non-Touch Laptop PC, Intel Core i7-10710U 10th Gen Processor, 16GB Ram, 256GB NVMe SSD, Webcam, Thunderbolt, Windows 11 Pro (Renewed)
By Dell
$440.99
Dell XPS 13 7390 Laptop 13.3 inch, 4K UHD InfinityEdge Touch, 10th Generation Intel Core i7-10710U, Intel UHD Graphics, 512GB SSD, 16GB RAM, Windows 10 Home, XPS7390-7121SLV-PUS (Renewed)
Dell XPS 13 7390 Laptop 13.3 inch, 4K UHD InfinityEdge Touch, 10th Generation Intel Core i7-10710U, Intel UHD Graphics, 512GB SSD, 16GB RAM, Windows 10 Home, XPS7390-7121SLV-PUS (Renewed)
By Dell
$515.76
Dell XPS 13 7390 Laptop Computer, 13.3 inch 4K(3840x2160) Touchscreen, 10th Generation Intel Core i7-10710U, 16GB RAM, 512GB SSD, Windows 10 Pro(Renewed)
Dell XPS 13 7390 Laptop Computer, 13.3 inch 4K(3840x2160) Touchscreen, 10th Generation Intel Core i7-10710U, 16GB RAM, 512GB SSD, Windows 10 Pro(Renewed)
By Dell
$559.00
Lenovo Legion Slim 7i (15”, Intel, 2020) Price
Lenovo Legion Slim 7i Gen 8 16" Gaming Laptop (2023 Model) - Intel Core i7-13700H 14C, NVIDIA GeForce RTX 4060, 16GB RAM, 1TB M.2 NVMe SSD, 16.0" IPS QHD+ 500 nits 240Hz, Windows 11 Home
Lenovo Legion Slim 7i Gen 8 16" Gaming Laptop (2023 Model) - Intel Core i7-13700H 14C, NVIDIA GeForce RTX 4060, 16GB RAM, 1TB M.2 NVMe SSD, 16.0" IPS QHD+ 500 nits 240Hz, Windows 11 Home
By Lenovo
$1,699.95
Lenovo Legion Pro 7i Gen 9 16" Gaming Laptop (2024 Model) Intel Core i9-14900HX 24C, NVIDIA GeForce RTX 4090 16GB, 32GB RAM, 2TB (1TB+1TB) NVMe SSD, 16.0" IPS QHD+ 500 nits 240Hz, Windows 11 Home
Lenovo Legion Pro 7i Gen 9 16" Gaming Laptop (2024 Model) Intel Core i9-14900HX 24C, NVIDIA GeForce RTX 4090 16GB, 32GB RAM, 2TB (1TB+1TB) NVMe SSD, 16.0" IPS QHD+ 500 nits 240Hz, Windows 11 Home
By Lenovo
$3,295.00
Lenovo Legion Pro 7i 16" QHD+ 500nits Gaming Laptop 240Hz Intel Core i9-13900HX 16GB RAM 1TB SSD NVIDIA GeForce RTX 4080 12GB Windows 11 Onyx Grey
Lenovo Legion Pro 7i 16" QHD+ 500nits Gaming Laptop 240Hz Intel Core i9-13900HX 16GB RAM 1TB SSD NVIDIA GeForce RTX 4080 12GB Windows 11 Onyx Grey
By Lenovo
$2,299.99

Availability

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Released20192020
Release Date
  • Announced at IFA 2019
  • Available on August 27, 2019
Announced on December 04, 2020
Generations-

Exterior

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Dimensions11.88 x 7.84 x 0.31 - 0.46 in (301.76 x 199.24 x 7.80 - 11.63mm)
Width: 11.88” (301.76 mm)
Depth: 7.84” (199.24 mm)
Height: 0.31 - 0.46” (7.80 - 11.63mm)
14.01 x 9.84 x 0.6 - 0.7 inches (356 x 250 x 15.9 - 17.9 mm)
Weight2.7 lbs - 2.84 lbs (1.23 kg - 1.29 kg)Starting at 4.1 lbs (1.86 kg)
Colors
  • Frost with Arctic white woven glass.
  • Rose Gold with Arctic white woven glass.
  • Platinum silver with black carbon fiber interior.
Slate grey
Keyboard and Trackpad
  •  Full-size backlit keyboard.
  • 4.13 x 2.36 in (105 mm x 60 mm) touchpad with multi-touch gesture support.
  • Keyboard
    • 6-row, spill-resistant, multimedia Fn keys, numeric keypad.
  • Keyboard Backlight
    • RGB LED backlight
    • White LED backlight
  • Touchpad
    • Buttonless glass surface multi-touch touchpad supports Precision TouchPad (PTP).

Display

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Size13.3 Inches15.6 Inches
Info
  • 13.3-inch FHD
    1920 x 1080, 166 PPI, 60 Hz, 1500:1 contrast ratio, 400 nits luminance, 2.90 W power consumption, Anti-glare, Non-touch support.
  • 13.3-inch FHD touchscreen
    1920 x 1080, 166 PPI, 60 Hz, 1500:1 contrast ratio, 400 nits luminance, 2.90 W power consumption, Anti-reflective, Touch support.
  • 13.3-inch 4K UHD touchscreen
    3840 x 2160, 331 PPI, 60 Hz, 1500:1 contrast ratio, 400 nits luminance, 5.41 W power consumption, Anti-reflective, Touch support.
  • 15.6" FHD 60Hz
    1920 x 1080 IPS 60 Hz 100% sRGB Dolby Vision® Supported 300 nits
  • 15.6" FHD 144Hz
    1920 x 1080 IPS 144 Hz Up to 5 ms Response Time 100% sRGB Dolby Vision® Supported 300 nits
  • 15.6" UHD 60Hz
    3840 x 2160 IPS 60 Hz 100% Adobe RGB VESA DisplayHDR 400 Certified Dolby Vision® Supported 500 nits

Ports

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Dell XPS 13 7390 Ports
Image Source: Dell
Left (3)
  • 1 x lock slot
    Wedge-shaped lock slot
  • 2 x Thunderbolt 3
    40 Gpbs, Power Delivery, DC-in, DisplayPort, 4 lanes of PCI Express Gen 3 (40 Gbps)
Right (3)
  • 1 x microSD card slot
  • 1 x USB-C
    USB 3.1 Gen 1 (5 Gbps), Power Delivery, DC-in, DisplayPort
  • 1 x headphone jack
  • 1 x Thunderbolt™ 3
    Supports USB 3.2 Gen 2, DisplayPort™ 1.4, and Power Delivery 100W.
  • 1 x USB-A 3.2 Gen 2
  • 1 x USB-A 3.2 Gen 2 (Always On)
  • 1 x 4-in-1 Full-size SD Card Reader
  • 1 x Audio jack
  • 1 x Power adapter

Internal Specs

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Processor
  1. 10th Gen Intel® Core™ i3-10110U
    2 cores, 4 threads, 2.10 → 4.10 GHz, 4MB SmartCache, 15W
  2. 10th Gen Intel® Core™ i5-10210U
    4 cores, 8 threads, 1.60 → 4.20 GHz, 6MB SmartCache, 15W
  3. 10th Gen Intel® Core™ i7-10510U
    4 cores, 8 threads, 1.80 → 4.90 GHz, 8MB SmartCache, 15W
  4. 10th Gen Intel® Core™ i7-10710U
    6 cores, 12 threads, 1.10 → 4.70 GHz, 12MB SmartCache, 15W
  1. 10th Gen Intel® Core™ i5-10300H
    4 cores, 8 threads, 2.50 → 4.50 GHz, 8MB SmartCache, 45W
  2. 10th Gen Intel® Core™ i7-10750H
    6 cores, 12 threads, 2.60 → 5.00 GHz, 12MB SmartCache, 45W
  3. 10th Gen Intel® Core™ i7-10870H
    8 cores, 16 threads, 2.20 → 5.00 GHz, 16MB SmartCache, 45W
  4. 10th Gen Intel® Core™ i7-10875H
    8 cores, 16 threads, 2.30 → 5.10 GHz, 16MB SmartCache, 45W
  5. 10th Gen Intel® Core™ i9-10980HK
    8 cores, 16 threads, 2.40 → 5.30 GHz, 16MB SmartCache, 45W
Integrated Graphics
  1. 10th Gen Intel® Core™ i3-10110U
    Intel® UHD Graphics
    23 Execution Units, 300 → 1000 MHz
  2. 10th Gen Intel® Core™ i5-10210U
    Intel® UHD Graphics
    24 Execution Units, 300 → 1100 MHz
  3. 10th Gen Intel® Core™ i7-10510U
    Intel® UHD Graphics
    24 Execution Units, 300 → 1150 MHz
  4. 10th Gen Intel® Core™ i7-10710U
    Intel® UHD Graphics
    24 Execution Units, 300 → 1150 MHz
  1. 10th Gen Intel® Core™ i5-10300H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1050 MHz
  2. 10th Gen Intel® Core™ i7-10750H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1150 MHz
  3. 10th Gen Intel® Core™ i7-10870H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  4. 10th Gen Intel® Core™ i7-10875H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  5. 10th Gen Intel® Core™ i9-10980HK
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1250 MHz
Memory
  • 4GB 8 GB 16 GB
    2133 MHz Dual-channel LPDDR3 SDRAM
8GB 16GB 32GB
2933 MHz or 3200 MHz DDR4 Memory
  • Memory Slots
    • 1 x Onboard Memory
    • 1 x SO-DIMM DDR4 Slot
Discrete Graphics-
  • NVIDIA® GeForce® GTX 1650 Ti
    4GB GDDR6
  • NVIDIA® GeForce® GTX 1660 Ti
    Max-Q Design, 6GB GDDR6
  • NVIDIA® GeForce RTX™ 2060
    Max-Q Design, 6GB GDDR6
  • Supports External eGPU Support
Storage
  • 128 GB 256 GB
    M.2 2230 PCIe® 3x2 NVMe™ SSD, Up to 32 Gbps.
  • 256 GB 512 GB 1 TB 2 TB
    M.2 2280 PCIe® 3x4 NVMe™ SSD, Up to 32 Gbps.
512 GB 1TB 2TB
M.2 2280 SSD
  • 2 x PCIe NVMe, PCIe 3.0 x4 slots

Connectivity

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Wi-Fi
  • Rivet Killer AX1650W
    Up to 2400 Mbps, Dual band 2.4 GHz/5 GHz, WiFi 802.11 a/b/g, WiFi-4 (802.11n), WiFi-5 (802.11ac), WiFi-6 (802.11ax)
Killer Wi-Fi 6 AX1650, 802.11ax 2x2 Wi-Fi + Bluetooth 5.1, M.2 Card
Bluetooth
  • Rivet Killer AX1650W › Bluetooth 5.0
Bluetooth 5.1

Battery

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Size
  • 4-cell smart lithium-ion
  • Battery Capacity: 52 Wh
71 WHr (Integrated 3-Cell Li-Polymer battery)
Supports Rapid Charge Boost (get 2 hours of runtime with a 15-minute charge)
Battery Life
  • Up to 21 hours on FHD panel
Up to 5.8 hours
Tested with MobileMark® 2018
Power Supply45 W USB (Type-C) power adapter
20 VDC/2.25A, 15 VDC/3A, 9 VDC/3A, 5VDC/3A
170W 230W
Slim tip AC adapter.

Software

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
OS
Windows 10 Home Windows 10 Pro Ubuntu 18.04
Upgradable to Windows 11
  • Windows 10 Home 64
  • Windows 10 Pro 64
  • FreeDOS
  • No operating system
Built-in Apps
  • Microsoft Office 30-days trial
  • McAfee LiveSafe™ 12 Month Subscription
Lenovo Vantage Dolby Atmos® Speaker System Dolby Vision® McAfee® Antivirus

Camera & Audio

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Camera
  • Front-facing camera
    Top-mount front camera with fixed focus lens, 0.92 Megapixels (1280 x 720 HD) at 30 fps.
Top-placed Built-in HD Webcam (720p) with Privacy Shutter
Audio
  • Realtek ALC3271-CG with Waves MaxxAudio Pro
  • Two speakers (2.5W x 2 = 4W peak)
  •  4 digital array microphones; Far Field Cortana Capable
  • 2 x 2W Dolby Atmos® Speaker System for Gaming
  • Dual array microphone

Misc

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
Sensors
  • Ambient light sensor
  • Windows Hello compliant fingerprint reader in the power button
  • Fingerprint Reader Combined with Power Button
Security
  • Windows Hello with Fingerprint Sign in
  • Wedge-shaped lock
  • Fingerprint Reader
    • Touch style fingerprint reader on the power button
  • BIOS Security
    • Power-on password
    • Supervisor password
  • Other Security
    • Camera privacy shutter
In the box-
  • Lenovo Legion Slim 7i 15”
  • AC adapter
  • Internal Battery
  • Quick Start Guide
Warranty-1-year depot service

Key Features

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)
At Glance
Released in Mid
2019
16:9 4K UHD
13.3”
2160p 60Hz
Weight
2.7 lb
1.22 kg
Up to
Intel Core i7-10710U
6C/12T, 1.10 → 4.70 GHz
Geekbench 5
1,051
Single Core
Geekbench 5
4,786
Multi-Core
With integrated
Intel® UHD Graphics
24 Execution Units, 300 → 1150 MHz
Configurable up to
16GB
2133 MHz LPDDR3
Dell XPS 13 7390 Ports
Released in
2020
16:9 4K UHD
15.6”
2160p 60Hz
Weight
4.1 lb
1.86 kg
Up to
Intel Core i9-10980HK
8C/16T, 2.40 → 5.30 GHz
Geekbench 5
1,223
Single Core
Geekbench 5
7,013
Multi-Core
With integrated
Intel® UHD Graphics 630
24 Execution Units, 350 → 1250 MHz
Upgradable up to
32GB
3200 MHz DDR4
NVIDIA GeForce
RTX 2060
6GB GDDR6 with Max-Q

Comparison Summary

Dell XPS 13 7390 vs. Lenovo Legion Slim 7i (15”, Intel, 2020)

Dell has released the XPS 13 7390, a 13.3-inch machine, in mid-2019. It is powered by up to a hexa-core Intel Core i7-10710U with a boost clock speed up to 4.70 GHz. The laptop has an integrated graphics option up to Intel® UHD Graphics (24 Execution Units, 300 → 1150 MHz).

On the other hand, we have the 15.6-inch Legion Slim 7i (15”, Intel, 2020) was introduced by Lenovo about a year later in 2020. It comes with up to an octa-core Intel Core i9-10980HK with a boost clock speed up to 5.30 GHz. It has a dedicated GPU option up to NVIDIA GeForce RTX 2060 with 6GB GDDR6 with Max-Q.

Geekbench 5 Single Core

Dell XPS 13 73901
10th Gen Intel® Core™ i3-10110U89773.34%
2
10th Gen Intel® Core™ i5-10210U94477.19%
3
10th Gen Intel® Core™ i7-10510U95778.25%
4
10th Gen Intel® Core™ i7-10710U1,05185.94%
Lenovo Legion Slim 7i (15”, Intel, 2020)1
10th Gen Intel® Core™ i5-10300H1,06186.75%
2
10th Gen Intel® Core™ i7-10750H1,13492.72%
3
10th Gen Intel® Core™ i7-10870H1,15994.77%
4
10th Gen Intel® Core™ i7-10875H1,19297.47%
5
10th Gen Intel® Core™ i9-10980HK1,223100.00%
01,223

Geekbench 5 Multi Core

Dell XPS 13 73901
10th Gen Intel® Core™ i3-10110U1,86626.61%
2
10th Gen Intel® Core™ i5-10210U2,93341.82%
3
10th Gen Intel® Core™ i7-10510U2,94241.95%
4
10th Gen Intel® Core™ i7-10710U4,78668.24%
Lenovo Legion Slim 7i (15”, Intel, 2020)1
10th Gen Intel® Core™ i5-10300H3,74753.43%
2
10th Gen Intel® Core™ i7-10750H5,41277.17%
3
10th Gen Intel® Core™ i7-10870H6,59694.05%
4
10th Gen Intel® Core™ i7-10875H6,87498.02%
5
10th Gen Intel® Core™ i9-10980HK7,013100.00%
07,013

The Dell XPS 13 7390 has a 13.3-inch display which is considerably smaller than the 15.6-inch Lenovo Legion Slim 7i (15”, Intel, 2020). In addition, The Dell XPS 13 7390 weighs 2.7 lbs. about 51% lighter than the 4.1 lbs. Lenovo Legion Slim 7i (15”, Intel, 2020). Moreover, measured at 11.88” x 7.84” x 0.46”, the Dell XPS 13 7390 is much more portable than the Lenovo Legion Slim 7i (15”, Intel, 2020) at 14.01” x 9.84” x 0.7”.

Dell XPS 13 7390Lenovo Legion Slim 7i (15”, Intel, 2020)

Moving over to upgradability, Dell claims that the Dell XPS 13 7390 supports up to 16GB 2133 MHz LPDDR3 memory. However, it has an onboard memory module that is not upgradable by the users. Fortunately, it comes with a single removable M.2 SSD slot that users can replace and upgrade in the future.

For Lenovo Legion Slim 7i (15”, Intel, 2020), it supports up to 32GB 3200 MHz DDR4 memory that you can upgrade with memory module slots on the motherboard. It also has two M.2 slots that users can easily swap or add an extra SSD to get extra space when needed.

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