Alienware X15 R1 vs. Lenovo Legion 7i 15”: Full specs comparison

We have comprehensively compared the specifications for the Alienware X15 R1 and Lenovo Legion 7i 15” models. The report includes detailed information regarding both models' CPU, memory, storage, battery life, display quality, and other features.

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Alienware X15 R1 image

Alienware X15 R1

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Lenovo Legion 7i 15” image

Lenovo Legion 7i 15”

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Alienware X15 R1 Pros

Reasons that Alienware X15 R1 is better than Lenovo Legion 7i 15”.

Newer manufacturing

2021 vs. 2020

Slightly faster CPU performance

Intel Core i9-11900H inside Alienware X15 R1 has a 15% better multi-core CPU performance score than the Intel Core i9-10980HK inside Lenovo Legion 7i 15”.

Geekbench 5 multi-core score
Alienware X15 R1 - Intel Core i9-11900H
8,121
Alienware X15 R1 - Intel Core i7-11800H
7,908
Lenovo Legion 7i 15” - Intel Core i9-10980HK
7,013
Lenovo Legion 7i 15” - Intel Core i7-10875H
6,874
Lenovo Legion 7i 15” - Intel Core i7-10750H
5,412
Lenovo Legion 7i 15” - Intel Core i5-10300H
3,747

Lenovo Legion 7i 15” Pros

Reasons that Lenovo Legion 7i 15” is better than Alienware X15 R1.

Upgradable memory

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 X15 R1 since it has onboard memory.

MemoryAlienware X15 R1Lenovo Legion 7i 15”
Slots
Onboard
x2
TypeDDR4DDR4
About 9% lighter

Lenovo Legion 7i 15” weighed 4.6 pounds, 9% lighter than the 5 pounds Alienware X15 R1.

WeightAlienware X15 R1Lenovo Legion 7i 15”
Pound
5 lbs.
4.6 lbs.
Kilogram
2.27 kg
2.09 kg

Key Similars

Similar characteristics share between Alienware X15 R1 and Lenovo Legion 7i 15”.

Supports the same maximum memory size of up to 32GB

Both laptops supports up to 32GB of system memory.

Max system memory size
Alienware X15 R1
32 GB
Lenovo Legion 7i 15”
32 GB
Uses the same memory type and speed

Both laptops supports the same 3200MHz DDR4 RAM.

Memory type and speed
Alienware X15 R1 - DDR4
3,200 MHz
Lenovo Legion 7i 15” - DDR4
3,200 MHz

Prices

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

Alienware X15 Price
Alienware X15 R2 Gaming Laptop - 15.6-inch FHD 360Hz 1ms Display, Intel Core i7-12700H, 16GB RAM, 512GB SSD, NVIDIA GeForce RTX 3070Ti 8GB GDDR6, USB-C, WiFi 6, Bluetooth, Windows 11 Home - White
 Alienware X15 R2 Gaming Laptop - 15.6-inch FHD 360Hz 1ms Display, Intel Core i7-12700H, 16GB RAM, 512GB SSD, NVIDIA GeForce RTX 3070Ti 8GB GDDR6, USB-C, WiFi 6, Bluetooth, Windows 11 Home - White
By Alienware
$1,833.50
$1,999.97 8% OFF
See at Amazon
Alienware X15R1 Gaming Laptop - 15.6-inch FHD (1920x1080) 360Hz 1ms Display, Intel Core i7-11800H Processor, 16GB DDR4 RAM, 1TB SSD, NVIDIA GeForce RTX 3070 DDR6 Graphics, Windows 11 Home- Lunar Light
 Alienware X15R1 Gaming Laptop - 15.6-inch FHD (1920x1080) 360Hz 1ms Display, Intel Core i7-11800H Processor, 16GB DDR4 RAM, 1TB SSD, NVIDIA GeForce RTX 3070 DDR6 Graphics, Windows 11 Home- Lunar Light
By Alienware
$1,771.99
$1,899.97 7% OFF
See at Amazon
Dell Alienware X15 R2 Gaming Laptop (2022) | 15.6" QHD | Core i7 - 1TB SSD - 16GB RAM - 3070 Ti | 14 Cores @ 4.7 GHz - 12th Gen CPU - 8GB GDDR5 Win 11 Home (Renewed)
 Dell Alienware X15 R2 Gaming Laptop (2022) | 15.6" QHD | Core i7 - 1TB SSD - 16GB RAM - 3070 Ti | 14 Cores @ 4.7 GHz - 12th Gen CPU - 8GB GDDR5 Win 11 Home (Renewed)
By Dell
$1,314.99
See at Amazon
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
 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
$2,404.00
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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
 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 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
See at Amazon

Specs Comparison

Availability

Alienware X15 R1Lenovo Legion 7i 15”
Released20212020
Release DateAvailable on June 1, 2021Announced in April 2020
Pricing
  • $1,999.99
    i7-11800H 16GB 256GB RTX 3060 FHD 165Hz
  • $2,379.99
    i7-11800H 16GB 512GB RTX 3070 FHD 165Hz
  • $2,629.99
    i7-11800H 32GB 1TB RTX 3070 FHD 165Hz
  • $2,929.99
    i9-11900H 32GB 1TB RTX 3070 FHD 360Hz
Starting at $1199.99
Generations-

Exterior

Alienware X15 R1Lenovo Legion 7i 15”
Dimensions
  • 14.16” x 10.915” x 0.642” (359.7 x 277.25 x 16.3 mm)
    With FHD 165Hz diplay.
  • 14.16” x 10.915” x 0.626” (359.7 x 277.25 x 15.9 mm)
    With FHD 360Hz or QHD 240Hz diplay.
14.1" x 10" x 0.8"/ 360mm x 255mm x 20mm
Weight5 - 5.2 lbs (2.27 - 2.36 kg)Starting at 4.6 lbs (2.1 kg)
Colors
Lunar light
Slate Grey
Keyboard and Trackpad
  • Keyboard
    • Alienware X-Series thin keyboard
    • Per-key RGB LED with AlienFX lighting
    • Anti-ghosting and N-key rollover technology.
    • 1.5mm key travel.
  • Touchpad
    • Multi-touch gesture Premium Precision glass touchpad with integrated scrolling.
    • 4.13 x 2.36 in (105 mm x 80 mm) precision touchpad with multi-touch gesture support.
    • Supports AlienFX touchpad.
  • Keyboard
    • Backlit full-size with the backlit keyboard.
    • Corsair® iCUE RGB support
  • Touchpad
    • Precision Touchpad.
    • Supports multi-touch gesture.

Display

Alienware X15 R1Lenovo Legion 7i 15”
Size15.6 Inches15.6 Inches
Info
  • 15.6” FHD with 165Hz
    1920 x 1080 141 PPI ComfortView Plus 3ms response time 300 nits 16:9 100% sRGB color gamut 1000:1 Anti-glare WVA 6W
  • 15.6” FHD with 360Hz
    1920 x 1080 141 PPI ComfortView Plus NVIDIA G-Sync Advanced Optimus 1ms response time 300 nits 16:9 100% sRGB color gamut 1000:1 Anti-glare WVA 7.6W
  • 15.6” QHD with 240Hz
    2560 x 1440 188 PPI ComfortView Plus NVIDIA G-Sync Advanced Optimus 2ms response time 400 nits 16:9 99% DCI-P3 color gamut 1000:1 Anti-glare WVA 10.15 W
  • 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.

Ports

Alienware X15 R1Lenovo Legion 7i 15”
Alienware X15 R1 Ports
Image Source: Dell
Left
  • 1 x Headset port
Right
  • 1 x Power/DC-in Port
Back
  • 1 x Thunderbolt 4
    Supports USB 3.2 Gen 2, DisplayPort 1.4, and PD output 15W (5V/3A).
  • 1 x USB-C
    Supports USB 3.2 Gen 2, DisplayPort 1.4, and PD output 15W (5V/3A).
  • 1 x USB-A
    Supports USB 3.2 Gen 1 with PowerShare
  • 1 x HDMI 2.1
    Supports up to 4K@120Hz display out.
  • 1 x MicroSD Card Slot
  • 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

Internal Specs

Alienware X15 R1Lenovo Legion 7i 15”
Processor
  1. 11th Gen Intel® Core™ i7-11800H
    8 cores, 16 threads, 2.30 → 4.60 GHz, 24MB SmartCache, 45W
  2. 11th Gen Intel® Core™ i9-11900H
    8 cores, 16 threads, 2.50 → 4.90 GHz, 24MB SmartCache, 45W
  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™ i7-10875H
    8 cores, 16 threads, 2.30 → 5.10 GHz, 16MB SmartCache, 45W
  4. 10th Gen Intel® Core™ i9-10980HK
    8 cores, 16 threads, 2.40 → 5.30 GHz, 16MB SmartCache, 45W
Integrated Graphics
  1. 11th Gen Intel® Core™ i7-11800H
    Intel® UHD Graphics
    32 Execution Units, 350 → 1450 MHz
  2. 11th Gen Intel® Core™ i9-11900H
    Intel® UHD Graphics
    32 Execution Units, 350 → 1450 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™ i7-10875H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  4. 10th Gen Intel® Core™ i9-10980HK
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1250 MHz
MemoryMemory Slots
  • Onbaord memory
Memory Configurations
  • Speed: 3200MHz
  • Memory Type: Dual-channel DDR4
  • Minimum Memory: 16 GB
  • Maximum Memory: 32 GB
  • Memory Slots
    • 2 x DDR4 SODIMM
  • Memory Configurations
    • Minimum Memory: 8GB
    • Maximum Memory: 32GB
    • Memory Speed: 2933MHz or 3200MHz
Discrete Graphics
  • NVIDIA® GeForce RTX™ 3060
    6GB GDDR6 TGP: 70W Dynamic Boost: 20W Max Power: 90W Speed: 1050 → 1402 MHz
  • NVIDIA® GeForce RTX™ 3070
    8GB GDDR6 TGP: 90W Dynamic Boost: 20W Max Power: 110W Speed: 930 → 1410 MHz
  • NVIDIA® GeForce RTX™ 3080
    8GB GDDR6 TGP: 90W Dynamic Boost: 20W Max Power: 110W Speed: 930 → 1365 MHz
* All configurations include 8-phase HyperEfficient graphics voltage regulation.
  • 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)
Storage
  • 1 x M.2 2230 slots (Up to 256GB)
  • 2 x M.2 2280 slots (Up to 2TB each)
    Supports RAID-0
  • 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

Alienware X15 R1Lenovo Legion 7i 15”
Wi-FiRivet Killer Wi-Fi 6E AX1675x
Dual Band 2.4 GHz/5 GHz Up to 2400 Mbps WiFi 6 802.11a/b/g/n/ac/ax
WiFi 6 802.11AX (2 x 2)
Up to 2400 Mbps, WiFi 802.11 b/g/a/n/ac/ax.
BluetoothBluetooth 5.2Bluetooth 5.0
Ethernet-Gigabit LAN
Speed: 10/100/1000 Mbps.

Battery

Alienware X15 R1Lenovo Legion 7i 15”
Size87 WHr, 6-cell smart lithium-ion battery80 Wh (4 Cell polymer)
Battery Life-Up to 7.7 hours
Power Supply
240W
power adapter.		230W AC power adapter
Lenovo proprietary charging port.

Software

Alienware X15 R1Lenovo Legion 7i 15”
OS
Windows 10 Home Windows 10 Pro
Upgradable to Windows 11
  • Windows 10 Home 64-bit
  • Windows 10 Pro 64-bit
Built-in Apps
  • Alienware Command Center
    AlienFX lighting Game Library Auto-tune game profile functionality Fusion Alienware Adrenalin Alienware Mobile Connect
  • Microsoft Office 365 (30-day trial)
  • Corsair® iCUE
  • Lenovo Vantage
  • McAfee LiveSafe™
  • Microsoft Office Trial

Camera & Audio

Alienware X15 R1Lenovo Legion 7i 15”
Camera
  • Front-facing camera.
    Alienware HD (1280x720 resolution) camera.
  • Optional Windows Hello IR support.
Front-facing camera
Top-mount front camera with fixed focus lens, 0.92 Megapixels (1280 x 720 HD) at 30 fps.
Audio
  • Controller: Realtek ALC3281
    • 7.1 Digital Audio out using HDMI out connection
    • Alienware Sound Center via Alienware Command Center
  • Speakers:
    • 2 x 4W speakers
  • Microphone:
    • Dual-array microphones
  • 2 x 2W Harman Kardon® Speaker System with Chamber
  • Dolby Atmos® Headphone Support
  • Dual-array microphones

Misc

Alienware X15 R1Lenovo Legion 7i 15”
SensorsWindows Hello IR Camera-
Security-
  • Chassis Kensington® Wedge security lock
In the box-
  • Legion 7i 15"
  • 4 Cell 80Wh internal battery
  • 230W AC adapter
  • Quick start guide
Warranty1 Year Hardware Service with Onsite/In-Home Service After Remote DiagnosisOne Year Legion Ultimate Support

Key Features

Alienware X15 R1Lenovo Legion 7i 15”
At Glance
Released in Mid
2021
16:9 QHD
15.6”
1440p 240Hz
Weight
5 lb
2.27 kg
Up to
Intel Core i9-11900H
8C/16T, 2.50 → 4.90 GHz
Geekbench 5
1,430
Single Core
Geekbench 5
8,121
Multi-Core
With integrated
Intel® UHD Graphics
32 Execution Units, 350 → 1450 MHz
Configurable up to
32GB
3200 MHz DDR4
Alienware X15 R1 Ports
Nvidia GeForce
RTX 3080
8GB GDDR6 90W TGP
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

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