Alienware M15 R4 vs. Alienware X15 R1: Which is better?

Here is a side by side comparison between Alienware M15 R4 and Alienware X15 R1 specs including CPU, RAM, storage, battery, display, and more.

Alienware M15 R4 Pros

Reasons that Alienware M15 R4 is better than Alienware X15 R1.

About 7% lighter

Alienware M15 R4 weighed 4.65 pounds, 7% lighter than the 5 pounds Alienware X15 R1.

WeightAlienware M15 R4Alienware X15 R1
Pound
4.65 lbs.
5 lbs.
Kilogram
2.11 kg
2.27 kg

Alienware X15 R1 Pros

Reasons that Alienware X15 R1 is better than Alienware M15 R4.

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 Alienware M15 R4.

Geekbench 5 multi-core score
Alienware X15 R1 - Intel Core i9-11900H
8,121
Alienware X15 R1 - Intel Core i7-11800H
7,908
Alienware M15 R4 - Intel Core i9-10980HK
7,013
Alienware M15 R4 - Intel Core i7-10870H
6,596
Supports faster memory

Alienware X15 R1 supports a faster memory speed than the Alienware M15 R4. It supports up to 3200MHz versus 2933MHz of system memory on the Alienware M15 R4.

Memory type and speed
Alienware X15 R1 - DDR4
3,200 MHz
Alienware M15 R4 - DDR4
2,933 MHz

Key Similars

Similar characteristics share between Alienware M15 R4 and Alienware X15 R1.

Supports the same maximum memory size of up to 32GB

Both laptops supports up to 32GB of system memory.

Max system memory size
Alienware M15 R4
32 GB
Alienware X15 R1
32 GB

Prices

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

Alienware M15 R4 Price
Alienware m15 R4 RTX 3070 Gaming Laptop Full HD (FHD), 15.6 inch - Intel Core i7-10870H, 16GB DDR4 RAM, 1TB SSD, NVIDIA GeForce RTX 3070 8GB GDDR6, Windows 10 Home - Lunar Light
Alienware m15 R4 RTX 3070 Gaming Laptop Full HD (FHD), 15.6 inch - Intel Core i7-10870H, 16GB DDR4 RAM, 1TB SSD, NVIDIA GeForce RTX 3070 8GB GDDR6, Windows 10 Home - Lunar Light
By Dell
$1,750.00
$1,849.00 5% OFF
Alienware - m15 R4-15.6" FHD Gaming Laptop - Intel Core i7-16GB Memory - Nvidia RTX3070-512GB Solid State Drive - Dark Side of The Moon
Alienware - m15 R4-15.6" FHD Gaming Laptop - Intel Core i7-16GB Memory - Nvidia RTX3070-512GB Solid State Drive - Dark Side of The Moon
By Dell
$1,999.99
Alienware m15 R4 Gaming Laptop, 15.6 inch Full HD (FHD) - Intel Core i7-10870H, 16GB DDR4 RAM, 512GB SSD, NVIDIA GeForce RTX 3060 6GB GDDR6, Windows 10 Home - Lunar Light
Alienware m15 R4 Gaming Laptop, 15.6 inch Full HD (FHD) - Intel Core i7-10870H, 16GB DDR4 RAM, 512GB SSD, NVIDIA GeForce RTX 3060 6GB GDDR6, Windows 10 Home - Lunar Light
By Alienware
$1,299.95
Alienware X15 Price
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
$1,784.99
$1,899.97 6% OFF
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
$1,920.69
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

Availability

Alienware M15 R4Alienware X15 R1
Released20212021
Release Date
  • Announced on January 12, 2021 (CES 2021)
  • Available on January 26, 2021
Available on June 1, 2021
PricingStarting at $2,149.99
  • $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
Generations

Exterior

Alienware M15 R4Alienware X15 R1
Dimensions
  • 14.19” x 10.879” x 0.724 - 0.807 - 0.776” (360.3 mm x 276.32 mm x 18.39 - 20.5 - 19.7 mm)
    Alienware M15 R4 with OLED display models
  • 14.19” x 10.863” x 0.701 - 0.783 - 0.776” (360.3 mm x 275.92 mm x 17.8 - 19.9 - 19.7 mm)
    Alienware M15 R4 with 300Hz display models
  • 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.
WeightStarting at 4.65 lbs (2.10 kg) up to 5.51 lbs (2.50 kg)5 - 5.2 lbs (2.27 - 2.36 kg)
Colors
  • Dark Side of the Moon with High Endurance Clear Coat
  • Lunar Light with High Endurance Clear Coat
Lunar light
Keyboard and Trackpad
  • 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.
  • 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.

Display

Alienware M15 R4Alienware X15 R1
Size15.6 Inches15.6 Inches
Info
  • 15.6” FHD with 300Hz
    1920 x 1080 141 PPI 3ms response time 300 nits 16:9 100% sRGB color gamut Anti-glare WVA 6.3W
  • 15.6” UHD with 60Hz
    3840 x 2160 OLED 282 PPI 1ms response time 400 nits 16:9 HDR-400 100% DCI-P3 color gamut 100000:1 contrast ratio TrueLife Tobii Eyetracking technology WVA 14.8W
  • 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

Ports

Alienware M15 R4Alienware X15 R1
Alienware M15 R4 Ports
Image Source: Dell
  • 1 x Thunderbolt™ 3 Port
    Supports USB Type-C™ with support for USB 3.2 Gen 2 10Gbps, 40Gbps Thunderbolt, and DisplayPort 1.2.
  • 2 x Type-A USB 3.2 Gen 1 Port
  • 1 x Type-A USB 3.2 Gen 1 port with PowerShare technology
  • 1 x RJ-45 Killer™ Ethernet E3000 10/100/1000Mbps/2.5Gbps Port
  • 1 x Alienware Graphics Amplifier Port
  • 1 x HDMI 2.1
    Supports up to 4K@120Hz display out.
  • 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
  • 1 x Power/DC-in Port
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

Internal Specs

Alienware M15 R4Alienware X15 R1
Processor
  1. 10th Gen Intel® Core™ i7-10870H
    8 cores, 16 threads, 2.20 → 5.00 GHz, 16MB SmartCache, 45W
  2. 10th Gen Intel® Core™ i9-10980HK
    8 cores, 16 threads, 2.40 → 5.30 GHz, 16MB SmartCache, 45W
  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
Integrated Graphics
  1. 10th Gen Intel® Core™ i7-10870H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  2. 10th Gen Intel® Core™ i9-10980HK
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1250 MHz
  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
Memory
8 GB 16 GB 32 GB
2933 MHz Dual-channel DDR4 RAM
Onboard memory.
Memory Slots
  • Onbaord memory
Memory Configurations
  • Speed: 3200MHz
  • Memory Type: Dual-channel DDR4
  • Minimum Memory: 16 GB
  • Maximum Memory: 32 GB
Discrete Graphics
  • NVIDIA® GeForce RTX™ 3070
    8GB GDDR6 VRAM.
  • NVIDIA® GeForce RTX™ 3080
    8GB GDDR6 VRAM.
  • 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.
StorageAvailable 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]
  • 1 x M.2 2230 slots (Up to 256GB)
  • 2 x M.2 2280 slots (Up to 2TB each)
    Supports RAID-0

Connectivity

Alienware M15 R4Alienware X15 R1
Wi-Fi
  • Rivet Killer Wi-Fi 6 AX1650i
    Dual Band 2.4 GHz/5 GHz up to 2400 Mbps, WiFi 802.11a/b/g/n/ac/ax.
Rivet 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
Bluetooth
  • Rivet Killer Wi-Fi 6 AX1650i › Bluetooth 5.1
Bluetooth 5.2
Ethernet
  • Killer™ Ethernet E3100X PCI-e Gigabit ethernet controller
    Transfer rate: 10/100/1000/2500 Mbps
-

Battery

Alienware M15 R4Alienware X15 R1
Size86 WHr, 6-cell smart lithium-ion with Alienware Battery Defender87 WHr, 6-cell smart lithium-ion battery
Power Supply240W (19.50 VDC/12.31A)
240W
power adapter.

Software

Alienware M15 R4Alienware X15 R1
OS
Windows 10 Home Windows 10 Pro
Upgradable to Windows 11
Windows 10 Home Windows 10 Pro
Upgradable to Windows 11
Built-in Apps
  • Alienware Command Center
    Supports AlienFX lighting, Game
    Library with auto-tune game profile functionality.
  • Alienware Adrenalin
  • Alienware Mobile Connect
  • Microsoft Office 365 (30-day trial)
  • Alienware Command Center
    AlienFX lighting Game Library Auto-tune game profile functionality Fusion Alienware Adrenalin Alienware Mobile Connect
  • Microsoft Office 365 (30-day trial)

Camera & Audio

Alienware M15 R4Alienware X15 R1
CameraFront-facing camera
Alienware FHD (1920x1080 resolution) camera.
  • Front-facing camera.
    Alienware HD (1280x720 resolution) camera.
  • Optional Windows Hello IR support.
Audio
  • Controller: Realtek ALC3281-CG
    • 7.1 Digital Audio out using HDMI out connection
    • Alienware Sound Center via Alienware Command Center
  • Speakers:
    • 2-Way (Woofer/Tweeter) Stereo Speaker Design
    • Includes Discrete Smart Amp Woofer technology
  • Microphone:
    • Digital-array microphones in the camera assembly
  • 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

Misc

Alienware M15 R4Alienware X15 R1
Sensors
  • Tobii Eyetracking technology (optional)
Windows Hello IR Camera
Security
  • Wedge-shaped lock slot
-
Warranty-1 Year Hardware Service with Onsite/In-Home Service After Remote Diagnosis
MoreCHASIS
  • 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

Alienware M15 R4Alienware X15 R1
At Glance
Released in Early
2021
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
2933 MHz DDR4
Alienware M15 R4 Ports
Nvidia GeForce
RTX 3080
8GB GDDR6
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

Comparison Summary

Alienware M15 R4 vs. Alienware X15 R1

Dell has released the Alienware M15 R4, a 15.6-inch machine, in early-2021. It is powered by up to an octa-core Intel Core i9-10980HK with a boost clock speed up to 5.30 GHz. The laptop has a dedicated GPU option up to Nvidia GeForce RTX 3080 with 8GB GDDR6.

On the other hand, we have the 15.6-inch Alienware X15 R1 was introduced by Dell around the same year in mid-2021. It comes with up to an octa-core Intel Core i9-11900H with a boost clock speed up to 4.90 GHz. It has a dedicated GPU option up to Nvidia GeForce RTX 3080 with 8GB GDDR6 90W TGP.

Geekbench 5 Single Core

Alienware M15 R41
10th Gen Intel® Core™ i7-10870H1,15979.06%
2
10th Gen Intel® Core™ i9-10980HK1,22383.42%
Alienware X15 R11
11th Gen Intel® Core™ i7-11800H1,466100.00%
2
11th Gen Intel® Core™ i9-11900H1,43097.54%
01,466

Geekbench 5 Multi Core

Alienware M15 R41
10th Gen Intel® Core™ i7-10870H6,59681.22%
2
10th Gen Intel® Core™ i9-10980HK7,01386.36%
Alienware X15 R11
11th Gen Intel® Core™ i7-11800H7,90897.38%
2
11th Gen Intel® Core™ i9-11900H8,121100.00%
08,121

Both Alienware M15 R4 and Alienware X15 R1 have the same 15.6-inch display size. In addition, The Alienware M15 R4 weighs 4.65 lbs. about 7% lighter than the 5 lbs. Alienware X15 R1. Moreover, measured at 14.19” x 10.87” x 0.78”, the Alienware M15 R4 is much bulkier than the Alienware X15 R1 at 14.16” x 10.915” x 0.626”.

Alienware M15 R4Alienware X15 R1

Moving over to upgradability, Dell claims that the Alienware M15 R4 supports up to 32GB 2933 MHz DDR4 memory. However, it has an onboard memory module that is not upgradable by the users. Fortunately, it comes with three M.2 slots that users can easily upgrade and install additional SSDs to expand the storage on the device.

For Alienware X15 R1, it supports up to 32GB 3200 MHz DDR4 memory. Like Alienware M15 R4, it has an onboard memory module that is not upgradable by the users. Luckily, it 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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