Alienware M15 R3 vs. 2021 ROG Strix G15: Full specs comparison

The following is a comprehensive comparison of the Alienware M15 R3 and 2021 ROG Strix G15 specifications, including details on CPU, memory, storage, battery life, display quality, and other features.

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Alienware M15 R3 image

Alienware M15 R3

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2021 ROG Strix G15 image

2021 ROG Strix G15

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Alienware M15 R3 Pros

We couldn't find any advantages of Alienware M15 R3 over 2021 ROG Strix G15.

2021 ROG Strix G15 Pros

Reasons that 2021 ROG Strix G15 is better than Alienware M15 R3.

Newer manufacturing

2021 vs. 2020

Slightly faster CPU performance

AMD Ryzen 9-5900HX inside 2021 ROG Strix G15 has a 9% better multi-core CPU performance score than the Intel Core i9-10980HK inside Alienware M15 R3.

Geekbench 5 multi-core score
2021 ROG Strix G15 - AMD Ryzen 9-5900HX
7,663
2021 ROG Strix G15 - AMD Ryzen 7-5800H
7,098
Alienware M15 R3 - Intel Core i9-10980HK
7,013
2021 ROG Strix G15 - AMD Ryzen 7-4800H
6,440
2021 ROG Strix G15 - AMD Ryzen 5-5600H
5,476
Alienware M15 R3 - Intel Core i7-10750H
5,412
Alienware M15 R3 - Intel Core i5-10300H
3,747
Supports faster memory

The 2021 ROG Strix G15 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
2021 ROG Strix G15 - DDR4
3,200 MHz
Alienware M15 R3 - DDR4
2,666 MHz
Upgradable memory

The 2021 ROG Strix G15 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.

MemoryAlienware M15 R32021 ROG Strix G15
Slots
Onboard
x2
TypeDDR4DDR4

Key Similars

Similar characteristics share between Alienware M15 R3 and 2021 ROG Strix G15.

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 R3
32 GB
2021 ROG Strix G15
32 GB

Prices

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

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
 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
 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
 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
2021 ROG Strix G15 Price
ASUS ROG Strix G15 (2021) Gaming Laptop, 15.6” 300Hz IPS Type FHD Display, NVIDIA GeForce RTX 3050 Ti, AMD Ryzen R7-5800H, 16GB DDR4, 1TB PCIe SSD, RGB Keyboard, Windows 10, Black, G513QE-ES76
 ASUS ROG Strix G15 (2021) Gaming Laptop, 15.6” 300Hz IPS Type FHD Display, NVIDIA GeForce RTX 3050 Ti, AMD Ryzen R7-5800H, 16GB DDR4, 1TB PCIe SSD, RGB Keyboard, Windows 10, Black, G513QE-ES76
By ASUS
$1,099.00
See at Amazon
ASUS ROG Strix G15 (2021) Gaming Laptop, 15.6†144Hz IPS Type FHD Display, NVIDIA GeForce RTX 3050, AMD Ryzen 7 4800H, 8GB DDR4, 512GB PCIe NVMe SSD, RGB Keyboard, Windows 10, G513IC-EB73
 ASUS ROG Strix G15 (2021) Gaming Laptop, 15.6†144Hz IPS Type FHD Display, NVIDIA GeForce RTX 3050, AMD Ryzen 7 4800H, 8GB DDR4, 512GB PCIe NVMe SSD, RGB Keyboard, Windows 10, G513IC-EB73
By ASUS
$909.99
$999.99 9% OFF
See at Amazon
ASUS ROG Strix G15 (2022) Gaming Laptop, 15.6” 300Hz IPS FHD Display, NVIDIA GeForce RTX 3060, AMD Ryzen 7 6800H, 16GB DDR5, 1TB SSD, RGB Keyboard, Windows 11 Home, G513RM-IS74
 ASUS ROG Strix G15 (2022) Gaming Laptop, 15.6” 300Hz IPS FHD Display, NVIDIA GeForce RTX 3060, AMD Ryzen 7 6800H, 16GB DDR5, 1TB SSD, RGB Keyboard, Windows 11 Home, G513RM-IS74
By ASUS
$979.99
$1,199.99 18% OFF
See at Amazon

Specs Comparison

Availability

Alienware M15 R32021 ROG Strix G15
Released20202021
Release DateAvailable on May 2020Announced on January 13, 2021 (CES 2021)
PricingStarting at $1,499.99-
Applicable Models-
  • 2021 ROG Strix G15
  • ROG Strix G15 (2021)
  • 2021 ROG Strix G15 G513
Generations

Exterior

Alienware M15 R32021 ROG Strix G15
DimensionsBase
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)
13.94 x 10.20 x 0.89 - 1.07” (354 x 259 x 22.6 ~ 27.2 mm)
WeightStarting at 4.65 lbs (2.10 kg) up to 5.51 lbs (2.50 kg)4.63 lbs (2.10 kg)
Colors
  • Dark Side of the Moon with High Endurance Clear Coat
  • Lunar Light with High Endurance Clear Coat
Original Black Eclipse Gray Electro Punk
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.
  • Full-size backlit keyboard
    ROG Overstroke Calibrated Keystrokes N-Key Rollover Aura Sync Bigger arrow keys Gaps between function keys
  • Hotkeys 
    Volume down volume up mute HyperFan Armoury Crate
  • RGB Lighting Options
    Per-Key RGB lighting 4 x Zone RGB lighting
  • Touchpad with integrated Numpad
    85% larger glass surface matte finish illuminated Numpad

Display

Alienware M15 R32021 ROG Strix G15
Size15.6 Inches15.6 Inches
InfoFull 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
  • 15.6” FHD 300Hz
    16:9 1920 x 1080 300Hz 3ms 100% sRGB 75% Adobe RGB Non-touch IPS Level Anti-Glare Adaptive-Sync
  • 15.6” WQHD 165Hz 
    16:9 3840 x 2160 165Hz 3ms 100% DCI-P3 Non-touch IPS Level Anti-Glare Adaptive-Sync

Ports

Alienware M15 R32021 ROG Strix G15
Alienware M15 R3 Ports
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
2021 ROG Strix G15 Ports
Image Source: ASUS
Left (3)
  • 2 x USB-A
    USB 3.2 Gen 1 (5 Gbps)
  • 1 x headphone jack
    Headphone/Microphone
Back (5)
  • 1 x USB-A
    USB 3.2 Gen 1 (5 Gbps)
  • 1 x USB-C
    USB 3.2 Gen 2 (10 Gbps), DisplayPort, Power Delivery
  • 1 x HDMI
    v2.0b
  • 1 x RJ-45
    1 Gbps
  • 1 x power port

Internal Specs

Alienware M15 R32021 ROG Strix G15
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. AMD Ryzen™ 7 4800H
    8 cores, 16 threads, 2.90 → 4.20 GHz, 4MB L2 Cache, 8MB L3 Cache, 45W
  2. AMD Ryzen™ 5 5600H
    6 cores, 12 threads, 3.30 → 4.20 GHz, 3MB L2 Cache, 16MB L3 Cache, 45W
  3. AMD Ryzen™ 7 5800H
    8 cores, 16 threads, 3.20 → 4.40 GHz, 4MB L2 Cache, 16MB L3 Cache, 45W
  4. AMD Ryzen™ 9 5900HX
    8 cores, 16 threads, 3.30 → 4.60 GHz, 4MB L2 Cache, 16MB L3 Cache, 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. AMD Ryzen™ 7 4800H
    AMD Radeon™ Graphics
    7 Graphics Cores, 1600 MHz
  2. AMD Ryzen™ 5 5600H
    AMD Radeon™ Graphics
    7 Graphics Cores, 1800 MHz
  3. AMD Ryzen™ 7 5800H
    AMD Radeon™ Graphics
    8 Graphics Cores, 2000 MHz
  4. AMD Ryzen™ 9 5900HX
    AMD Radeon™ Graphics
    8 Graphics Cores, 2100 MHz
Memory
8 GB 16 GB 32 GB
2666 MHz Dual-channel DDR4 RAM.
Onboard memory.
16GB 32GB
Dual-Channel DDR4 3200MHz SDRAM.
2 x SODIMM slots
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 RTX™ 3060
    6GB GDDR6 VRAM, with ROG Boost up to 1802MHz at 115W (130W with Dynamic Boost).
  • NVIDIA® GeForce RTX™ 3070
    8GB GDDR6 VRAM, with ROG Boost up to 1660MHz at 115W (130W with Dynamic Boost).
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]
512GB 1TB 2TB
M.2 NVMe PCIe 3.0.
2 x M.2 SSD slots, supports RAID-0.

Connectivity

Alienware M15 R32021 ROG Strix G15
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® Wi-Fi 6 with Gig+ performance (802.11ax) 2x2 multi-antenna
Bluetooth
  • Rivet Killer Wi-Fi 6 AX1650 › Bluetooth 5.1
Bluetooth 5.1
Ethernet
  • Killer™ Ethernet E3000 PCI-e Gigabit ethernet controller
    Transfer rate: 10/100/1000/2500 Mbps
 Gigabit LAN
Speed: 10/100/1000 Mbps.

Battery

Alienware M15 R32021 ROG Strix G15
Size
  • 56 WHr, 3-cell smart lithium-ion
  • 86 WHr, 6-cell smart lithium-ion
56Wh 90Wh
4-cell lithium-ion battery.
Battery Life-Up to 12 hours of video playback.
Power Supply
  • E4 130W (19.50 VDC/6.70A)
  • E4 180W (19.50 VDC/9.23A)
  • E4 240W (19.50 VDC/12.31A)
* Support Hybrid Power
  • 240W
      ø6.0 mm power adapter.
  • 100W
      USB-C power adapter.
  • Supports fast charging technology with up to 50% in 30 minutes.

Software

Alienware M15 R32021 ROG Strix G15
OS
Windows 10 Home Windows 10 Pro
Upgradable to Windows 11
  • Windows 10 Home
  • Windows 10 Pro
Built-in Apps
  • Alienware Command Center
  • Alienware Adrenlin
  • Alienware Mobile Connect
  • Microsoft Office 365 (30-day trial)
Armoury Crate GameVisual Aura Creator Scenario Profiles

Camera & Audio

Alienware M15 R32021 ROG Strix G15
Camera
  • Front-facing camera
    Alienware FHD (1920x1080 resolution) camera.
No Built-in camera.
Audio
  • 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
  • Speakers
    • 2 x 4W speaker with Smart Amp Technology.
    • 2.8x Louder Volume.
    • 3x More Bass.
    • 6.5dBa Dynamic Range.
  • Microphones
    • Built-in array microphone.
    • Two-Way AI Noise Cancelation.

Misc

Alienware M15 R32021 ROG Strix G15
Sensors
  • Tobii Eyetracking technology (optional)
-
Security
  • Wedge-shaped lock slot
-
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 R32021 ROG Strix G15
At Glance
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
Alienware M15 R3 Ports
Nvidia GeForce
RTX 2080 SUPER
8GB GDDR6 with Max-Q
Released in
2021
16:9
15.6”
2160p 165Hz
Weight
4.63 lb
2.10 kg
Up to
AMD Ryzen 9-5900HX
8C/16T, 3.30 → 4.60 GHz
Geekbench 5
1,416
Single Core
Geekbench 5
7,663
Multi-Core
With integrated
AMD Radeon™ Graphics
8 Graphics Cores, 2100 MHz
Upgradable up to
32GB
3200 MHz DDR4
2021 ROG Strix G15 Ports
Nvidia GeForce
RTX 3070
8GB GDDR6

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