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Dell Inspiron 13 5391 vs. Lenovo Legion Y740 15”: Full specs comparison

We have comprehensively compared the specifications for the Dell Inspiron 13 5391 and Lenovo Legion Y740 15” models. The report includes detailed information regarding both models' CPU, memory, storage, battery life, display quality, and other features.

Compare With Please enter device name or part of it Dell Inspiron 13 5391 See at Amazon	Compare With Please enter device name or part of it Lenovo Legion Y740 15” See at Amazon

Dell Inspiron 13 5391 Pros

Reasons that Dell Inspiron 13 5391 is better than Lenovo Legion Y740 15”.

Dell Inspiron 13 5391 weighed 2.16 pounds, 56% lighter than the 4.85 pounds Lenovo Legion Y740 15”.

Weight	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Pound	2.16 lbs.	4.85 lbs.
Kilogram	0.98 kg	2.20 kg

Lenovo Legion Y740 15” Pros

Reasons that Lenovo Legion Y740 15” is better than Dell Inspiron 13 5391.

Intel Core i7-9750H inside Lenovo Legion Y740 15” has a 65% better multi-core CPU performance score than the Intel Core i7-10510U inside Dell Inspiron 13 5391.

Geekbench 5 multi-core score

Lenovo Legion Y740 15” - Intel Core i7-9750H

4,880

Lenovo Legion Y740 15” - Intel Core i7-8750H

4,470

Lenovo Legion Y740 15” - Intel Core i5-8300H

3,269

Dell Inspiron 13 5391 - Intel Core i7-10510U

2,942

Dell Inspiron 13 5391 - Intel Core i5-10210U

2,933

Dell Inspiron 13 5391 - Intel Core i3-10110U

1,866

Lenovo Legion Y740 15” supports a larger memory capacity than the Dell Inspiron 13 5391. It supports up to 32GB versus 8GB of system memory on the Dell Inspiron 13 5391.

Max system memory size

Lenovo Legion Y740 15”

32 GB

Dell Inspiron 13 5391

8 GB

Lenovo Legion Y740 15” supports a faster memory speed than the Dell Inspiron 13 5391. It supports up to 3200MHz versus 2133MHz of system memory on the Dell Inspiron 13 5391.

Memory type and speed

Lenovo Legion Y740 15” - DDR4

3,200 MHz

Dell Inspiron 13 5391 - LPDDR3

2,133 MHz

Lenovo Legion Y740 15” comes with two SODIMM slots that allow you to replace or upgrade when needed. On the flip side, you can't upgrade RAM on the Dell Inspiron 13 5391 since it has onboard memory.

Memory	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Slots	Onboard	x2
Type	LPDDR3	DDR4

Lenovo Legion Y740 15” has a 15.6-inch screen size 17% larger than the 13.3-inch Dell Inspiron 13 5391.

Display size

Lenovo Legion Y740 15”

15.6-inch

Dell Inspiron 13 5391

13.3-inch

Prices

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

Dell Inspiron 13 5391 Price
	Dell Inspiron 13 5310, 13.3 inch QHD (Quad High Definition) Laptop - Thin and Light Intel Core i7-11370H, 16GB DDR4 RAM, 512GB SSD, NVIDIA GeForce MX450, Services - Windows 10 Home By Dell $789.99 $1,099.99 28% OFF	See at Amazon
	Dell Inspiron 7430 14" FHD+ (1920x1200) IPS Touch 2-in-1 Laptop \| Intel i7-1355U 10-Core \| Iris Xe Graphics \| Backlit Keyboard \| Fingerprint \| Thunderbolt 4 \| WiFi 6E \| 16GB LPDDR5 1TB SSD \| Win11 Pro By Dell $775.41	See at Amazon
	Dell Newest 13th Generation Business Inspiron 15 3530 Laptop, 15.6" FHD Touchscreen, Intel Core i7-1355U, 64GB RAM, 1TB SSD, Webcam, HDMI, Wi-Fi 6, Windows 11 Pro, Black By Dell $870.00	See at Amazon
Lenovo Legion Y740 15” Price
	New Gneuine Replacement LCD Back Cover for Lenovo Legion Y740-15 Series with Antenna Cables 5CB0S16417 By Comp XP $189.95	See at Amazon
	Lenovo Legion 5 Gaming Laptop, 15.6" WQHD 165Hz Display, 8-Core AMD Ryzen 7 7735HS, NVIDIA Geforce RTX 4060, 32GB DDR5 RAM, 1TB NVMe SSD, Backlit Keyboard, WiFi 6, HDMI, Win 11, w/CUE Accessories By Lenovo $1,179.99	See at Amazon
	Lenovo Legion 5 Gaming Laptop, 15.6" FHD Display, AMD Ryzen 7 5800H, 16GB RAM, 512GB Storage, NVIDIA GeForce RTX 3050Ti, Windows 10H, Phantom Blue By Lenovo $1,010.00 $1,189.99 15% OFF	See at Amazon

Availability	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Released	2019	2019
Release Date	Announced at IFA 2019 Available on October 1, 2019	Announced at CES 2019 Available in February 2019 Refreshed in April 2019 for 9th Gen Intel processors
Pricing	Starting at $579.99 (non-WWAN) Starting at $729.99 (WWAN)	Starting at $1,749.99

Exterior	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Dimensions	Non-WWAN Models Front: 12.11 x 8.05 x 0.59 in (307.60 x 204.50 x 14.90 mm) Back: 12.11 x 8.05 x 0.65 in (307.60 x 204.50 x 16.50 mm) WWAN Models Front: 12.11 x 8.05 x 0.66 in (307.60 x 204.50 x 16.80 mm) Back: 12.11 x 8.05 x 0.73 in (307.60 x 204.50 x 18.50 mm)	14.2” x 10.5” x 0.88” / 361.42 x 267 x 22.45 (mm)
Weight	Non-WWAN Models 2.16 lb (1.18 kg) WWAN Models 2.65 lb (1.20 kg)	Starting at 4.85 lbs (2.2 kg)
Colors	Platinum Silver with dark gray bezel and keyboard (available on configurations without a backlit keyboard) Platinum Silver with light gray bezel and silver keyboard (available on configurations with a backlit keyboard) Ice Lilac	Iron Grey
Keyboard and Trackpad	Full-size, spill-resistant keyboard Optional backlit full-size, spill-resistant keyboard Multi-touch gesture-enabled precision touchpad with integrated scrolling	Keyboard Backlit full-size, Backlit with Corsair® iCUE RGB lighting keyboard. The water-repellent keyboard delivers 100% anti-ghosting. Touchpad Precision Touchpad. Supports multi-touch gesture. Two physical left-right click buttons.

Display	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Size	13.3 Inches	15.6 Inches
Info	13.3-inch FHD (1920 x 1080) TrueLife LED Backlight Non-touch Narrow Border Wide Viewing Angle Display	15.6" FHD 144Hz 1920 x 1080, IPS, Dolby Vision HDR400 Enabled, 144 Hz, 72% Color Gamut, 500 nits, NVIDIA® G-Sync™. 15.6" FHD 144Hz 1920 x 1080, IPS, 144 Hz, 72% Color Gamut, 300 nits, NVIDIA® G-Sync™.

Ports	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Image Source: Dell 1 x HDMI 1.4b 1 x USB 3.1 Gen 1 Type-C™ (DP/PowerDelivery) 1 x USB 3.1 Gen 1 1 x Micro SD card reader 1 x Headphone & Microphone Audio Jack 1 x AC Power	1 x USB 3.1 Gen 2 Type-C with Intel Thunderbolt 3 (DisplayPort, Data transfer) 1 x USB 3.1 Gen 2 2 x USB 3.1 Gen 1 1 x Mini DisplayPort ™ 1.4 1 x HDMI™ 2.0 1 x RJ45 Ethernet 1 x Kensington® Wedge Lock slot 1 x 3.5mm microphone/headphone combo 1 x NOVO hole

Internal Specs	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Processor	10th Gen Intel® Core™ i3-10110U 2 cores, 4 threads, 2.10 → 4.10 GHz, 4MB SmartCache, 15W 10th Gen Intel® Core™ i5-10210U 4 cores, 8 threads, 1.60 → 4.20 GHz, 6MB SmartCache, 15W 10th Gen Intel® Core™ i7-10510U 4 cores, 8 threads, 1.80 → 4.90 GHz, 8MB SmartCache, 15W	8th Gen Intel® Core™ i5-8300H 4 cores, 8 threads, 2.30 → 4.00 GHz, 8MB SmartCache, 45W 8th Gen Intel® Core™ i7-8750H 6 cores, 12 threads, 2.20 → 4.10 GHz, 9MB SmartCache, 45W 9th Gen Intel® Core™ i7-9750H 6 cores, 12 threads, 2.60 → 4.50 GHz, 12MB SmartCache, 45W
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™ i5-8300H Intel® UHD Graphics 630 24 Execution Units, 350 → 1000 MHz 8th Gen Intel® Core™ i7-8750H Intel® UHD Graphics 630 24 Execution Units, 350 → 1100 MHz 9th Gen Intel® Core™ i7-9750H Intel® UHD Graphics 630 24 Execution Units, 350 → 1150 MHz
Memory	4 GB 8 GB 2133 MHz dual-channel onboard LPDDR3 RAM.	Memory Slots 2 x DDR4 SODIMM Memory Configurations Minimum Memory: 8GB Maximum Memory: 32GB Memory Speed: 2666MHz or 3200MHz
Discrete Graphics	NVIDIA® GeForce® MX250 (Optional) Pascal Architecture, 2GB GDDR5 64-bit, 1518 → 1582 MHz, 384 CUDA Cores.	NVIDIA® GeForce® RTX 2080 with Max-Q 8GB GDDR 6& G-SYNC support NVIDIA® GeForce® RTX 2070 with Max-Q 8GB GDDR 6 & G-SYNC support NVIDIA® GeForce® RTX 2060 6GB GDDR 6 & G-SYNC support NVIDIA® GeForce® GTX 1660 Ti 6GB GDDR 6
Storage	256 GB 512 GB M.2 PCIe NVMe Solid State Drive.	Storage Slots 1 x M.2 2230/2280 PCIe SSD slot 1 x 2.5 inches hard drive slot Storage Configurations 128 GB/256 GB/512 GB/1 TB PCIe NVMe SSD 1 TB/2 TB HDD

Connectivity	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Wi-Fi	Intel 9560 Up to 1730 Mbps, Dual band 2.4 GHz/5 GHz, WiFi 802.11 a/b/g, WiFi-4 (802.11n), WiFi-5 (802.11ac) Intel 9462 Up to 433 Mbps, Dual band 2.4 GHz/5 GHz, WiFi 802.11 a/b/g, WiFi-4 (802.11n), WiFi-5 (802.11ac)	Killer™ Wireless 802.11 AC (2 x 2) Up to 867 Mbps, WiFi 802.11 b/g/a/n/ac.
Bluetooth	Bluetooth 5.0	Bluetooth 5.0
Ethernet	-	Gigabit LAN Speed: 10/100/1000 Mbps.
More	Optional Wireless Wide Area Network (WWAN) Intel 7360 (DW5820e) Up to 450 Mbps DL/50 Mbps UL (Cat 9) Frequency bands supported (LTE FDD: 450 Mbps DL/50 Mbps UL (Cat 9), LTE TDD: B347 Mbps DL/30 Mbps UL (Cat 9), UMTS/HSPA+: UMTS 384 Kbps DL/384 Kbps UL) Wireless standards (LTE Category 16, UMTS/HSPA+) Global Navigation Satellite System (GNSS) (Supports GPS, BDS, and GLONASS)	-

Battery	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Size	4-Cell Battery, 45 Whr (Integrated) 4-Cell Battery, 52 Whr (Integrated)	57 Wh (3 Cell Li-Polymer) 76 Wh (4 Cell Li-Polymer)
Battery Life	Non-WWAN Models Up to 13 hours 06 minutes WWAN Models Up to 13 hours 44 minutes * Tested on the Mobile Mark 2014 benchmark test.	Up to 5 hours
Power Supply	65 Watt AC Adapter	230W AC power adapter Lenovo proprietary charging port.

Software	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
OS	Windows 10 Home Windows 10 Pro Ubuntu 18.04 Upgradable to Windows 11	Windows 10 Home 64-bit Windows 10 Pro 64-bit
Built-in Apps	Microsoft Office 30 Trial McAfee LiveSafe Foxit Phantom Standard PDF SupportAssist Dell Mobile Connect Dell Color Profiles SmartByte Wave MaxxAudio® Pro	Lenovo Vantage McAfee® Antivirus Corsair® iCUE PC Manager Lenovo Antivirus Plus Magic Y Key

Camera & Audio	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Camera	Integrated Widescreen HD (720p) Webcam	Front-facing camera Bottom-mount front camera with fixed focus lens, 0.92 Megapixels (1280 x 720 HD) at 30 fps.
Audio	2 x tuned speakers, audio processing by Waves MaxxAudio® Pro 1 x combo headphone/microphone jack Dual Digital Microphone Array	Dolby Atmos® Speaker System with Soundbar and integrated subwoofer with Smart AMP technology for gaming. Dual-array microphones

Misc	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
Sensors	Fingerprint reader sensor (Optional)	-
Security	Fingerprint Reader with Windows Hello (Optional)	Chassis Kensington® Wedge security lock
In the box	-	Legion Y740 15" 230W AC Adapter 3 Cell Li-Polymer, 57Wh Quick start guide
Warranty	-	1 Year Depot or Carry-in

Key Features	Dell Inspiron 13 5391	Lenovo Legion Y740 15”
At Glance	Released in Late 2019 16:9 FHD 13.3” 1080p 60Hz Weight 2.16 lb 0.98 kg Up to Intel Core i7-10510U 4C/8T, 1.80 → 4.90 GHz Geekbench 5 957 Single Core Geekbench 5 2,942 Multi-Core With integrated Intel® UHD Graphics 24 Execution Units, 300 → 1150 MHz Configurable up to 8GB 2133 MHz LPDDR3 Nvidia GeForce MX250 2GB GDDR5	Released in 2019 16:9 FHD 15.6” 1080p 144Hz Weight 4.85 lb 2.20 kg Up to Intel Core i7-9750H 6C/12T, 2.60 → 4.50 GHz Geekbench 5 1,044 Single Core Geekbench 5 4,880 Multi-Core With integrated Intel® UHD Graphics 630 24 Execution Units, 350 → 1150 MHz Upgradable up to 32GB 3200 MHz DDR4 NVIDIA GeForce RTX 2080 8GB GDDR6 with Max-Q