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Lenovo Legion 7i 15” vs. Alienware M15 R3: Full specs comparison

The following is a comprehensive comparison of the Lenovo Legion 7i 15” and Alienware M15 R3 specifications, including details on CPU, memory, storage, battery life, display quality, and other features.

Compare With Please enter device name or part of it Lenovo Legion 7i 15” See at Amazon	Compare With Please enter device name or part of it Alienware M15 R3 See at Amazon See at Dell

Lenovo Legion 7i 15” Pros

Reasons that Lenovo Legion 7i 15” is better than Alienware M15 R3.

Lenovo Legion 7i 15” supports a faster memory speed than the Alienware M15 R3. It supports up to 3200MHz versus 2666MHz of system memory on the Alienware M15 R3.

Memory type and speed

Lenovo Legion 7i 15” - DDR4

3,200 MHz

Alienware M15 R3 - DDR4

2,666 MHz

Lenovo Legion 7i 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 Alienware M15 R3 since it has onboard memory.

Memory	Lenovo Legion 7i 15”	Alienware M15 R3
Slots	x2	Onboard
Type	DDR4	DDR4

Alienware M15 R3 Pros

We couldn't find any advantages of Alienware M15 R3 over Lenovo Legion 7i 15”.

Key Similars

Similar characteristics share between Lenovo Legion 7i 15” and Alienware M15 R3.

Both laptops supports up to 32GB of system memory.

Max system memory size

Lenovo Legion 7i 15”

32 GB

Alienware M15 R3

32 GB

Prices

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

Lenovo Legion 7i 15” Price
	Lenovo Legion Pro 7i Gen 8 16" Gaming Laptop (2023 Model) - Intel Core i9-13900HX 24-Core, NVIDIA GeForce RTX 4080, 32GB RAM, 1TB M.2 NVMe Gen 4 SSD, 16.0" IPS QHD+ 500 nits 240Hz, Windows 11 Home By Lenovo $2,399.00	See at Amazon
	Lenovo Legion Pro 7i Gaming Laptop, 16" WQHD IPS 240Hz Display, Intel Core i9-13900HX, GeForce RTX 4080, 32GB DDR5 RAM, 1TB SSD, Webcam, Per-Key RGB Backlit KB, Wi-Fi 6E, Windows 11 Home By Lenovo $2,356.99 $2,498.92 6% OFF	See at Amazon
	Lenovo 2024 Newest Legion Pro 7i Gaming Laptop, 16" WQXGA 240Hz Display, Intel Core i9-13900HX(24 cores), RTX 4090, 64GB DDR5, 4TB SSD, Wi-Fi 6, Backlit Keyboard, Windows 11 Pro, with Laptop Stand By Lenovo $3,799.99	See at Amazon
Alienware M15 R3 Price
	Dell Alienware m15 R3 Gaming Laptop (2020) \| 15.6" FHD \| Core i7-512GB SSD Hard Drive - 16GB RAM - 2070 Super \| 6 Cores @ 5 GHz - 10th Gen CPU - 8GB GDDR6 Win 11 Pro By Dell $1,913.06	See at Amazon
	Dell Alienware m15 R3 Gaming Laptop (2020) \| 15.6" FHD \| Core i7-2TB SSD Hard Drive + 2TB SSD - 16GB RAM - 2070 Super \| 6 Cores @ 5 GHz - 10th Gen CPU - 8GB GDDR6 Win 11 Pro By Dell $2,155.30	See at Amazon
	Dell Alienware m15 R3 Gaming Laptop (2020) \| 15.6" FHD \| Core i7-2TB SSD Hard Drive + 2TB SSD - 16GB RAM - 2070 Super \| 6 Cores @ 5 GHz - 10th Gen CPU - 8GB GDDR6 Win 10 Pro By Dell $2,149.36	See at Amazon

Availability	Lenovo Legion 7i 15”	Alienware M15 R3
Released	2020	2020
Release Date	Announced in April 2020	Available on May 2020
Pricing	Starting at $1199.99	Starting at $1,499.99
Generations	-	2022 Alienware M15 R7 2021 Alienware M15 R6 2021 Alienware M15 R5 2021 Alienware M15 R4 2020 Alienware M15 R3 2019 Alienware M15 R2 2019 Alienware M15 R1

Exterior	Lenovo Legion 7i 15”	Alienware M15 R3
Dimensions	14.1" x 10" x 0.8"/ 360mm x 255mm x 20mm	Base Width: 14.19 in. (360.30 mm) Depth: 10.87 in. (276.20 mm) Height: 0.72 - 0.78 in. (18.30 - 19.70 mm) 300 Hz Refresh Rate Models Width: 14.19 in. (360.30 mm) Depth: 10.86 in. (275.90 mm) Height: 0.70 - 0.78 in. (17.90 - 19.70 mm)
Weight	Starting at 4.6 lbs (2.1 kg)	Starting at 4.65 lbs (2.10 kg) up to 5.51 lbs (2.50 kg)
Colors	Slate Grey	Dark Side of the Moon with High Endurance Clear Coat Lunar Light with High Endurance Clear Coat
Keyboard and Trackpad	Keyboard Backlit full-size with the backlit keyboard. Corsair® iCUE RGB support Touchpad Precision Touchpad. Supports multi-touch gesture.	Keyboard Alienware mSeries 4-Zone AlienFX RGB keyboard. Alienware mSeries keyboard with per-key RGB LED. AlienFX lighting Includes anti-ghosting and N-key rollover technology 1.7mm key travel 0.2mm-dish concave key design 4.13 x 2.36 in (105 mm x 80 mm) precision touchpad with multi-touch gesture support.

Display

Lenovo Legion 7i 15”

Alienware M15 R3

Size

15.6 Inches

Info

15.6" FHD 144Hz
1920 x 1080, IPS, 144 Hz, < 3ms response time, 100% sRGB, 300 nits.
15.6" FHD 144Hz HDR
1920 x 1080, IPS, 144 Hz, <3 ms Response Time, 100% Adobe RGB, 500 nits, VESA DisplayHDR 400-certified, Dolby Vision™-enabled.
15.6" FHD 240Hz HDR
1920 x 1080, IPS, 240 Hz, <1 ms Response Time, 100% sRGB, 500 nits, VESA DisplayHDR 400 Certified, Dolby Vision™ Enabled.

Full HD with 144Hz refresh rate

1920 x 1080, 141 PPI, 7ms response time, 300 nits, 16:9, 72% NTSC color gamut, Anti-glare.

Full HD with 144Hz refresh rate

1920 x 1080, 141 PPI, 7ms response time, 300 nits, 16:9, 72% NTSC color gamut with NVIDIA G-SYNC Technology, Anti-glare.

Full HD with 300Hz refresh rate

1920 x 1080, 141 PPI, 3ms response time, 300 nits, 16:9, 100% sRGB color gamut, Anti-glare.

Ultra HD with 60Hz refresh rate

3180 x 2160, OLED, 282 PPI, 1ms response time, 400 nits, 16:9, HDR-400 100% DCI-P3 color gamut, 100,000:1 contrast ratio, TrueLife, 14.80W max power consumption
Tobii Eyetracking technology

All options

Wide Viewing Angles on all displays with 85 degrees viewing from all directions

Ports	Lenovo Legion 7i 15”	Alienware M15 R3
1 x Thunderbolt™ 3 Type-C™ (Thunderbolt™, DisplayPort™, USB 3.1, HDMI™) 1 x USB-C (DisplayPort™ 1.4, USB 3.1 Gen 1) 2 x USB 3.1 Gen 2 Type-A 1 x USB 3.1 Gen 1 Type-A 1 x HDMI™ 2.0 1 x RJ45 Ethernet 1 x Kensington MiniSaver Lock slot 1 x 3.5mm microphone/headphone combo 1 x Power input 1 x NOVO hole	Image Source: Dell 1 x Power/DC-in Port 1 x RJ-45 Killer™ Ethernet E3000 10/100/1000Mbps/2.5Gbps Port 2 x Type-A USB 3.1 Gen 1 Port 1 x Type-A USB 3.1 Gen 1 port with PowerShare technology 1 x Thunderbolt™ 3 Port (USB Type-C™ with support for USB 3.1 Gen 2 10Gbps, 40Gbps Thunderbolt, and DisplayPort 1.2) 1 x Alienware Graphics Amplifier Port 1 x HDMI 2.0b with HDCP 2.2 Output Port 1 x Mini-Display Port 1.4 (certified) Output Port 1 x Audio Out 1/8" Ports (Compatible with inline mic headset) 1 x Wedge-shaped lock slot (cable and lock sold separately) 1 x microSD 5.1, UHD-II HD312 Card Reader

Internal Specs	Lenovo Legion 7i 15”	Alienware M15 R3
Processor	10th Gen Intel® Core™ i5-10300H 4 cores, 8 threads, 2.50 → 4.50 GHz, 8MB SmartCache, 45W 10th Gen Intel® Core™ i7-10750H 6 cores, 12 threads, 2.60 → 5.00 GHz, 12MB SmartCache, 45W 10th Gen Intel® Core™ i7-10875H 8 cores, 16 threads, 2.30 → 5.10 GHz, 16MB SmartCache, 45W 10th Gen Intel® Core™ i9-10980HK 8 cores, 16 threads, 2.40 → 5.30 GHz, 16MB SmartCache, 45W	10th Gen Intel® Core™ i5-10300H 4 cores, 8 threads, 2.50 → 4.50 GHz, 8MB SmartCache, 45W 10th Gen Intel® Core™ i7-10750H 6 cores, 12 threads, 2.60 → 5.00 GHz, 12MB SmartCache, 45W 10th Gen Intel® Core™ i9-10980HK 8 cores, 16 threads, 2.40 → 5.30 GHz, 16MB SmartCache, 45W
Integrated Graphics	10th Gen Intel® Core™ i5-10300H Intel® UHD Graphics 630 24 Execution Units, 350 → 1050 MHz 10th Gen Intel® Core™ i7-10750H Intel® UHD Graphics 630 24 Execution Units, 350 → 1150 MHz 10th Gen Intel® Core™ i7-10875H Intel® UHD Graphics 630 24 Execution Units, 350 → 1200 MHz 10th Gen Intel® Core™ i9-10980HK Intel® UHD Graphics 630 24 Execution Units, 350 → 1250 MHz	10th Gen Intel® Core™ i5-10300H Intel® UHD Graphics 630 24 Execution Units, 350 → 1050 MHz 10th Gen Intel® Core™ i7-10750H Intel® UHD Graphics 630 24 Execution Units, 350 → 1150 MHz 10th Gen Intel® Core™ i9-10980HK Intel® UHD Graphics 630 24 Execution Units, 350 → 1250 MHz
Memory	Memory Slots 2 x DDR4 SODIMM Memory Configurations Minimum Memory: 8GB Maximum Memory: 32GB Memory Speed: 2933MHz or 3200MHz	8 GB 16 GB 32 GB 2666 MHz Dual-channel DDR4 RAM. Onboard memory.
Discrete Graphics	NVIDIA® GeForce® GTX 1660 Ti (6GB GDDR6) NVIDIA® GeForce RTX™ 2060 (6GB GDDR6) NVIDIA® GeForce RTX™ 2070 Max-Q (8GB GDDR6) NVIDIA® GeForce RTX™ 2080 SUPER Max-Q (8GB GDDR6) NVIDIA® GeForce RTX™ 2070 SUPER Max-Q (8GB GDDR6)	NVIDIA® GeForce GTX® 1650 Ti (4GB GDDR6) NVIDIA® GeForce GTX® 1660 Ti (6GB GDDR6) NVIDIA® GeForce RTX™ 2060 (6GB GDDR6) OC Ready NVIDIA® GeForce RTX™ 2070 (8GB GDDR6) NVIDIA® GeForce RTX™ 2070 SUPER (8GB GDDR6) NVIDIA® GeForce RTX™ 2080 SUPER (8GB GDDR6) with Max-Q Design AMD RX5500M (4GB GDDR6)
Storage	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	Available Slots One M.2 2230 slot (Up to 512GB) Two M.2 2230/2280 slots (Up to 2TB each) Single Drive 256 GB PCIe M.2 SSD 512 GB PCIe M.2 SSD 1 TB PCIe M.2 SSD 2 TB PCIe M.2 SSD RAID-0 512GB (2x256 PCIe M.2 SSD) RAID0 1TB (2x 512 PCIe M.2 SSD) RAID0 2TB (2x 1TB PCIe M.2 SSD) RAID0 4TB (2x 2TB PCIe M.2 SSD) RAID0 RAID-0 Plus 1TB (2x 512GB PCIe M.2 SSD) RAID0 [Boot] + 512GB PCIe M.2 SSD [Storage] 2TB (2x 1TB PCIe M.2 SSD) RAID0 [Boot] + 512GB PCIe M.2 SSD [Storage] 4TB (2x 2TB PCIe M.2 SSD) RAID0 [Boot] + 512GB PCIe M.2 SSD [Storage]

Connectivity	Lenovo Legion 7i 15”	Alienware M15 R3
Wi-Fi	WiFi 6 802.11AX (2 x 2) Up to 2400 Mbps, WiFi 802.11 b/g/a/n/ac/ax.	Rivet Killer Wi-Fi 6 AX1650 Dual Band 2.4 GHz/5 GHz up to 2400 Mbps, WiFi 802.11a/b/g/n/ac/ax.
Bluetooth	Bluetooth 5.0	Rivet Killer Wi-Fi 6 AX1650 › Bluetooth 5.1
Ethernet	Gigabit LAN Speed: 10/100/1000 Mbps.	Killer™ Ethernet E3000 PCI-e Gigabit ethernet controller Transfer rate: 10/100/1000/2500 Mbps

Battery	Lenovo Legion 7i 15”	Alienware M15 R3
Size	80 Wh (4 Cell polymer)	56 WHr, 3-cell smart lithium-ion 86 WHr, 6-cell smart lithium-ion
Battery Life	Up to 7.7 hours	-
Power Supply	230W AC power adapter Lenovo proprietary charging port.	E4 130W (19.50 VDC/6.70A) E4 180W (19.50 VDC/9.23A) E4 240W (19.50 VDC/12.31A) * Support Hybrid Power

Software	Lenovo Legion 7i 15”	Alienware M15 R3
OS	Windows 10 Home 64-bit Windows 10 Pro 64-bit	Windows 10 Home Windows 10 Pro Upgradable to Windows 11
Built-in Apps	Corsair® iCUE Lenovo Vantage McAfee LiveSafe™ Microsoft Office Trial	Alienware Command Center Alienware Adrenlin Alienware Mobile Connect Microsoft Office 365 (30-day trial)

Camera & Audio	Lenovo Legion 7i 15”	Alienware M15 R3
Camera	Front-facing camera Top-mount front camera with fixed focus lens, 0.92 Megapixels (1280 x 720 HD) at 30 fps.	Front-facing camera Alienware FHD (1920x1080 resolution) camera.
Audio	2 x 2W Harman Kardon® Speaker System with Chamber Dolby Atmos® Headphone Support Dual-array microphones	Controller: Realtek ALC3281-CG 7.1 Digital Audio out using HDMI out connection Alienware Sound Center via Alienware Command Center Speakers: 4-Way (Woofer/Tweeter) Stereo Speaker Design Output: 4-5W Introduces Discrete Smart Amp Woofer technology Delivers 2.5x bass improvement over the previous generation Delivers 2x treble improvement over the previous generation Delivers 30% loudness improvement over the previous generation for full-range performance Microphone: Digital-array microphones in camera assembly

Misc	Lenovo Legion 7i 15”	Alienware M15 R3
Sensors	-	Tobii Eyetracking technology (optional)
Security	Chassis Kensington® Wedge security lock	Wedge-shaped lock slot
In the box	Legion 7i 15" 4 Cell 80Wh internal battery 230W AC adapter Quick start guide	-
Warranty	One Year Legion Ultimate Support	-
More	-	CHASIS Based on Alienware's Legend industrial design language Engineered with Alienware's Advanced Cryo-Tech Cooling technology Engineered with HyperEfficient Voltage Regulation Constructed with a Magnesium Alloy exterior shell and copper alloy thermal components

Key Features	Lenovo Legion 7i 15”	Alienware M15 R3
At Glance	Released in 2020 16:9 FHD 15.6” 1080p 240Hz Weight 4.6 lb 2.09 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 2070 SUPER 8GB GDDR6 with Max-Q	Released in Mid 2020 16:9 FHD 15.6” 1080p 300Hz Weight 4.65 lb 2.11 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 Configurable up to 32GB 2666 MHz DDR4 Nvidia GeForce RTX 2080 SUPER 8GB GDDR6 with Max-Q