Alienware M17 R3 vs. Alienware M15 R2: Which is better?

Here is a side by side comparison between Alienware M17 R3 and Alienware M15 R2 specs including CPU, RAM, storage, battery, display, and more.

Alienware M17 R3 Pros

Reasons that Alienware M17 R3 is better than Alienware M15 R2.

Newer manufacturing

2020 vs. 2019

Slightly faster CPU performance

Intel Core i9-10980HK inside Alienware M17 R3 has a 7% better multi-core CPU performance score than the Intel Core i9-9980HK inside Alienware M15 R2.

Geekbench 5 multi-core score
Alienware M17 R3 - Intel Core i9-10980HK
7,013
Alienware M15 R2 - Intel Core i9-9980HK
6,504
Alienware M15 R2 - Intel Core i9-9880H
6,100
Alienware M17 R3 - Intel Core i7-10750H
5,412
Alienware M15 R2 - Intel Core i7-9750H
4,880
Alienware M17 R3 - Intel Core i5-10300H
3,747
Alienware M15 R2 - Intel Core i5-9300H
3,308
Supports larger memory

Alienware M17 R3 supports a larger memory capacity than the Alienware M15 R2. It supports up to 32GB versus 16GB of system memory on the Alienware M15 R2.

Max system memory size
Alienware M17 R3
32 GB
Alienware M15 R2
16 GB
10% larger display

Alienware M17 R3 has a 17.3-inch screen size 10% larger than the 15.6-inch Alienware M15 R2.

Display size
Alienware M17 R3
17.3-inch
Alienware M15 R2
15.6-inch

Alienware M15 R2 Pros

Reasons that Alienware M15 R2 is better than Alienware M17 R3.

About 28% lighter

Alienware M15 R2 weighed 4.76 pounds, 28% lighter than the 6.55 pounds Alienware M17 R3.

WeightAlienware M17 R3Alienware M15 R2
Pound
6.55 lbs.
4.76 lbs.
Kilogram
2.97 kg
2.16 kg

Key Similars

Similar characteristics share between Alienware M17 R3 and Alienware M15 R2.

Uses the same memory type and speed

Both laptops supports the same 2666MHz DDR4 RAM.

Memory type and speed
Alienware M17 R3 - DDR4
2,666 MHz
Alienware M15 R2 - DDR4
2,666 MHz

Prices

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

Alienware M17 R3 Price
Dell m17 R3 17.3 inch FHD Gaming Laptop (Luna Light) Intel Core i7-10750H 10th Gen, 16GB DDR4 RAM, 1TB SSD, Nvidia Geforce RTX 2070 8GB GDDR6, Windows 10 Home
Dell m17 R3 17.3 inch FHD Gaming Laptop (Luna Light) Intel Core i7-10750H 10th Gen, 16GB DDR4 RAM, 1TB SSD, Nvidia Geforce RTX 2070 8GB GDDR6, Windows 10 Home
By Dell
$789.99
2020 Dell Alienware m17 R3 Laptop 17.3" - Intel Core i7 10th Gen - i7-10750H - Six Core 5Ghz - 256GB SSD + 256GB SSD - 20GB RAM - 1920x1080 FHD - Windows 10 Home (Renewed)
2020 Dell Alienware m17 R3 Laptop 17.3" - Intel Core i7 10th Gen - i7-10750H - Six Core 5Ghz - 256GB SSD + 256GB SSD - 20GB RAM - 1920x1080 FHD - Windows 10 Home (Renewed)
By Dell
$1,592.96
2020 Dell Alienware m17 R3 Laptop 17.3" - Intel Core i7 10th Gen - i7-10750H - Six Core 5Ghz - 256GB SSD + 256GB SSD - 16GB RAM - Nvidia GeForce RTX 2060 - 1920x1080 FHD - Windows 10 Home (Renewed)
2020 Dell Alienware m17 R3 Laptop 17.3" - Intel Core i7 10th Gen - i7-10750H - Six Core 5Ghz - 256GB SSD + 256GB SSD - 16GB RAM - Nvidia GeForce RTX 2060 - 1920x1080 FHD - Windows 10 Home (Renewed)
By Dell
$1,592.97
Alienware M15 R2 Price
2019 Dell Alienware m15 R2 Laptop 15.6" - Intel Core i7 9th Gen - i7-9750H - Six Core 4.5Ghz - 1TB SSD + 1TB SSD - 16GB RAM - Nvidia GeForce RTX 2060 - 1920x1080 FHD - Windows 10 Pro (Renewed)
2019 Dell Alienware m15 R2 Laptop 15.6" - Intel Core i7 9th Gen - i7-9750H - Six Core 4.5Ghz - 1TB SSD + 1TB SSD - 16GB RAM - Nvidia GeForce RTX 2060 - 1920x1080 FHD - Windows 10 Pro (Renewed)
By Dell
$2,007.41
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
$1,910.69
Dell Alienware m15 R2 Gaming Laptop (2019) | 15.6" FHD | Core i7-256GB SSD Hard Drive - 16GB RAM | 6 Cores @ 4.5 GHz Win 10 Home
Dell Alienware m15 R2 Gaming Laptop (2019) | 15.6" FHD | Core i7-256GB SSD Hard Drive - 16GB RAM | 6 Cores @ 4.5 GHz Win 10 Home
By Dell
$2,581.77

Availability

Alienware M17 R3Alienware M15 R2
Released20202019
Release Date
  • Available on May 2020
  • Announced at Computex 2019
  • Available on June 11, 2019
PricingStarting at $1,549.99-
Generations

Exterior

Alienware M17 R3Alienware M15 R2
Dimensions15.74 x 11.59 x 0.89 in (399.80 x 294.30 x 22.50 mm)
  • Width: 15.74 in. (399.80 mm)
  • Depth: 11.59 in. (294.30 mm)
  • Height: 0.89 in. (22.50 mm)
Base
Width: 14.19 in. (360.50 mm)
Depth: 10.87 in. (276 mm)
Height: 0.70 - 0.77 in. (17.90 - 19.50 mm)
With Tobii Eye Tracking
Width: 14.19 in. (360.50 mm)
Depth: 10.87 in. (276 mm)
Height: 0.720 - 0.807 in. (18.30 - 20.50 mm)
WeightStarting at 6.55 lb (2.97 kg)Average at 4.76 lbs (2.16 kg)
Colors
  • Lunar Light with High Endurance Clear Coat
  • Dark Side of the Moon with High Endurance Clear Coat
  • Dar Side of the moon
  • Lunar Light
Keyboard and Trackpad
  • Keyboard
    • Type:
      • 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
    • 1.7 mm key travel and alphanumeric keys
    • 0.2 mm-dish concave key design
  • Touchpad
    • Size: 4.13” x 3.15” (105 mm x 80 mm)
    • Premium Precision-Point glass touchpad
  • 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

Alienware M17 R3Alienware M15 R2
Size17.3 Inches15.6 Inches
InfoFull HD with 144Hz refresh rate
  • 1920 x 1080, 141 PPI, 9ms response time, 300 nits, 16:9, 72% NTSC  color gamut, 600:1 contrast ratio, Anti-glare.
Full HD with 144Hz refresh rate
  • 1920 x 1080, 141 PPI, 9ms response time, 300 nits, 16:9, 72% NTSC color gamut with NVIDIA G-SYNC Technology, 600:1 contrast ratio, Anti-glare.
Full HD with 300Hz refresh rate
  • 1920 x 1080, 141 PPI, 3ms response time, 300 nits, 16:9, 100% sRGB color gamut, 700:1 contrast ratio, Anti-glare.
Ultra HD with 60Hz refresh rate
  • 3180 x 2160, 282 PPI, 25ms response time, 500 nits, 16:9, 100% sRGB color gamut, 1,200:1 contrast ratio, 12W max power consumption
  • Tobii Eyetracking technology
All options
  • Wide Viewing Angles on all displays with 85 degrees viewing from all directions
Full HD with 60Hz refresh rate
  • 1920 x 1080, 141 PPI, 35ms response time, 300 nits, 16:9, 72% color gamut, 700:1 contrast ratio, Anti-glare, 6.20W max power consumption.
Full HD with 144Hz refresh rate
  • 1920 x 1080, 141 PPI, 19ms response time, 300 nits, 16:9, 72% color gamut, 800:1 contrast ratio, Anti-glare, 7.80W max power consumption.
Full HD with 240Hz refresh rate
  • 1920 x 1080, 141 PPI, 8ms response time, 300 nits, 16:9, 72% color gamut, 1000:1 contrast ratio, Anti-glare, 4.41W max power consumption.
Ultra HD with 60Hz refresh rate
  • 3180 x 2160, OLED, 282 PPI, 1ms response time, 300 nits, 16:9, HDR-400 DCI-P3 color gamut, 10,000:1 contrast ratio, TrueLife, 14.80W max power consumption
All options
  • Wide Viewing Angles on all displays with 85 degrees viewing from all directions

Ports

Alienware M17 R3Alienware M15 R2
Alienware M17 R3 Ports
Image Source: Dell
  • 1 x Power/DC-in Port
  • 1 x RJ-45 Killer™ Ethernet E3100 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 0.125" 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
Alienware M15 R2 Ports
Image Source: Dell
  • 1 x Power/DC-in Port
  • 1 x RJ-45 Ethernet 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 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)

Internal Specs

Alienware M17 R3Alienware M15 R2
Processor
  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™ i9-10980HK
    8 cores, 16 threads, 2.40 → 5.30 GHz, 16MB SmartCache, 45W
  1. 9th Gen Intel® Core™ i5-9300H
    4 cores, 8 threads, 2.40 → 4.10 GHz, 8MB SmartCache, 45W
  2. 9th Gen Intel® Core™ i7-9750H
    6 cores, 12 threads, 2.60 → 4.50 GHz, 12MB SmartCache, 45W
  3. 9th Gen Intel® Core™ i9-9880H
    8 cores, 16 threads, 2.30 → 4.80 GHz, 16MB SmartCache, 45W
  4. 9th Gen Intel® Core™ i9-9980HK
    8 cores, 16 threads, 2.40 → 5.00 GHz, 16MB SmartCache, 45W
Integrated Graphics
  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™ i9-10980HK
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1250 MHz
  1. 9th Gen Intel® Core™ i5-9300H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1050 MHz
  2. 9th Gen Intel® Core™ i7-9750H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1150 MHz
  3. 9th Gen Intel® Core™ i9-9880H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  4. 9th Gen Intel® Core™ i9-9980HK
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1250 MHz
Memory
  • 8 GB 16 GB 32 GB
    • 2666 MHz Dual-channel DDR4 RAM.
    • Soldered-on.
  • 8 GB 16 GB
    2666 MHz Dual-channel DDR4 RAM.
Discrete Graphics
  • 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)
  • NVIDIA® GeForce GTX® 1650 (4GB GDDR5)
  • NVIDIA® GeForce GTX® 1650 Ti (6GB GDDR5)
  • NVIDIA® GeForce RTX™ 2060 (6GB GDDR6) OC Ready
  • NVIDIA® GeForce RTX™ 2070 (8GB GDDR6) with Max-Q Design
  • NVIDIA® GeForce RTX™ 2080 (8GB GDDR6) with Max-Q Design
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]
Single Storage Configurations
  • 256 GB PCIe M.2 SSD
  • 512 GB PCIe M.2 SSD
  • 512 GB Intel Optane M.2 SSD
  • 1 TB PCIe M.2 SSD
  • 2 TB PCIe M.2 SSD
Dual Storage Configurations
  • 512 GB RAID0 (2 x 256 GB PCIe M.2 SSDs)
  • 1 TB RAID0 (2 x 512 GB PCIe M.2 SSDs)
  • 512 GB Intel Optane M.2 SSD + 512 GB PCIe M.2 SSD
  • 2 TB RAID0 (2 x 1 TB PCIe M.2 SSDs)
  • 4 TB RAID0 (2 x 2 TB PCIe M.2 SSDs)

Connectivity

Alienware M17 R3Alienware M15 R2
Wi-Fi
  • 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.
  • Intel 8265, Dual Band 2.4 GHz/5 GHz up to 867 Mbps, WiFi 802.11a/b/g/n/ac.
  • Rivet killer 1650w, Dual Band 2.4 GHz/5 GHz up to 2400 Mbps, WiFi 802.11a/b/g/n/ac/ax.
Bluetooth
  • Rivet Killer Wi-Fi 6 AX1650 › Bluetooth 5.1
  • Intel 8265 › Bluetooth 4.2
  • Rivet Killer 1650w › Bluetooth 5.0
Ethernet
  • Killer™ Ethernet E3000 PCI-e Gigabit ethernet controller
    Transfer rate: 10/100/1000/2500 Mbps
  • Killer E2600 PCI-E Gigabit Ethernet Controller
  • Killer E3000 PCI-E Gigabit Ethernet Controller (Optional)

Battery

Alienware M17 R3Alienware M15 R2
Size
  • 56 WHr, 3-cell smart lithium-ion
  • 86 WHr, 6-cell smart lithium-ion
6-cell lithium-ion polymer (76Wh) with Alienware Battery Defender technology
Battery Life-
  • Up to 15.5 hours on FHD panel
  • Up to 10.8 hours on UHD panel
Power Supply
  • 130W (19.50 VDC/6.70A)
  • 180W (19.50 VDC/9.23A)
  • 240W (19.50 VDC/12.31A)
  • 330W (19.50 VDC/16.92A)
  • 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

Alienware M17 R3Alienware M15 R2
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
  • Alienware Adrenalin
  • Alienware Mobile Connect
  • Microsoft Office 365 (30-day trial)
  • Alienware Command Center
  • Alienware Adrenlin
  • Alienware Mobile Connect
  • Microsoft Office 365 (30-day trial)

Camera & Audio

Alienware M17 R3Alienware M15 R2
Camera
  • Front-facing camera
    Alienware FHD (1920x1080 resolution) camera.
  • Front-facing camera
    Alienware FHD (1920x1080 resolution) camera.
Audio
  • Controller: Realtek ALC3281-CG
    • 7.1 Digital Audio out using HDMI out connection
    • Alienware Sound Center via Alienware Command Center
  • Speakers:
    • 2-Way Stereo Speaker Design
    • Output: 4-5W
  • Microphone:
    • Digital-array microphones in the camera assembly
  • Realtek ALC3281-CG
  • 2.0 Speaker configuration
  • 7.1 Digital Audio out using HDMI out connection
  • Alienware Sound Center via Alienware Command Center
  • Microphone:
    • Digital-array microphones in the camera assembly

Misc

Alienware M17 R3Alienware M15 R2
Sensors
  • Tobii Eye Tracking (Optional)
  • Tobii Eye Tracking (Optional)
Security
  • Wedge-shaped lock slot
  • Wedge-shaped lock slot
MoreCHASIS
  • AlienFX Lighting Zones
    • Programmable with up to 16.8 million distinct colors
  • Exterior Chassis Materials
    • Magnesium Alloy exterior shell
    • Copper Alloy thermal structures
  • Customized Features
    • AlienFX Lighting Detail
    • Programmable with up to 16.8 million distinct colors
    • Alienware Command Center
    • AlienFX Lighting Technology
    • Game Library with auto-tune game profile functionality
    • Fusion (Includes support for Overclock, Thermal, Power, Audio, and Audio Recon profiles)
  • Thermal
    • Cryo-Tech Cooling Technology
    • Dual-Intake, Dual-Exhaust Airflow Design
    • High-Voltage Driving Fans
    • Load-balancing Heat Pipes
    • Dense Copper Fin Stacks
CHASIS
  • AlienFX Lighting Zones Programmable with up to 16.8 million distinct colors
  • Exterior Chassis Materials
    • Magnesium Alloy exterior shell
    • Copper Alloy thermal structures

Key Features

Alienware M17 R3Alienware M15 R2
At Glance
Released in Mid
2020
16:9 FHD
17.3”
1080p 300Hz
Weight
6.55 lb
2.97 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
Alienware M17 R3 Ports
Nvidia GeForce
RTX 2080 SUPER
8GB GDDR6 with Max-Q
Released in Mid
2019
16:9 FHD
15.6”
1080p 240Hz
Weight
4.76 lb
2.16 kg
Up to
Intel Core i9-9980HK
8C/16T, 2.40 → 5.00 GHz
Geekbench 5
1,114
Single Core
Geekbench 5
6,504
Multi-Core
With integrated
Intel® UHD Graphics 630
24 Execution Units, 350 → 1250 MHz
Configurable up to
16GB
2666 MHz DDR4
Alienware M15 R2 Ports
Nvidia GeForce
RTX 2080 SUPER
8GB GDDR6 with Max-Q

Comparison Summary

Alienware M17 R3 vs. Alienware M15 R2

Dell has released the Alienware M17 R3, a 17.3-inch machine, in mid-2020. 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 2080 SUPER with 8GB GDDR6 with Max-Q.

On the other hand, we have the 15.6-inch Alienware M15 R2 was introduced by Dell about a year earlier in mid-2019. It comes with up to an octa-core Intel Core i9-9980HK with a boost clock speed up to 5.00 GHz. It has a dedicated GPU option up to Nvidia GeForce RTX 2080 SUPER with 8GB GDDR6 with Max-Q.

Geekbench 5 Single Core

Alienware M17 R31
10th Gen Intel® Core™ i5-10300H1,06186.75%
2
10th Gen Intel® Core™ i7-10750H1,13492.72%
3
10th Gen Intel® Core™ i9-10980HK1,223100.00%
Alienware M15 R21
9th Gen Intel® Core™ i5-9300H94877.51%
2
9th Gen Intel® Core™ i7-9750H1,04485.36%
3
9th Gen Intel® Core™ i9-9880H1,06687.16%
4
9th Gen Intel® Core™ i9-9980HK1,11491.09%
01,223

Geekbench 5 Multi Core

Alienware M17 R31
10th Gen Intel® Core™ i5-10300H3,74753.43%
2
10th Gen Intel® Core™ i7-10750H5,41277.17%
3
10th Gen Intel® Core™ i9-10980HK7,013100.00%
Alienware M15 R21
9th Gen Intel® Core™ i5-9300H3,30847.17%
2
9th Gen Intel® Core™ i7-9750H4,88069.59%
3
9th Gen Intel® Core™ i9-9880H6,10086.98%
4
9th Gen Intel® Core™ i9-9980HK6,50492.74%
07,013

The Alienware M17 R3 has a 17.3-inch display which is slightly larger than the 15.6-inch Alienware M15 R2. In addition, the Alienware M17 R3 weighs 6.55 lbs. about 37% heavier than the 4.76 lbs. Alienware M15 R2. Moreover, measured at 15.74” x 11.59” x 0.89”, the Alienware M17 R3 is much bulkier than the Alienware M15 R2 at 14.19” x 10.87” x 0.77”.

Alienware M17 R3Alienware M15 R2

Moving over to upgradability, Dell claims that the Alienware M17 R3 supports up to 32GB 2666 MHz DDR4 memory. However, it has an onboard memory module that is not upgradable by the users. Fortunately, it comes with two M.2 slots that users can easily upgrade and install an additional SSD to expand the storage on the device.

For Alienware M15 R2, it supports up to 16GB 2666 MHz DDR4 memory. Like Alienware M17 R3, 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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