MSI GS66 Stealth vs. ROG Zephyrus M15: Full specs comparison

We thoroughly analyzed technical specifications for MSI GS66 Stealth and ROG Zephyrus M15 models, including CPU, memory, storage, battery life, display quality, and other features.

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MSI GS66 Stealth image

MSI GS66 Stealth

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ROG Zephyrus M15 image

ROG Zephyrus M15

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MSI GS66 Stealth Pros

Reasons that MSI GS66 Stealth is better than ROG Zephyrus M15.

Supports larger memory

MSI GS66 Stealth supports a larger memory capacity than the ROG Zephyrus M15. It supports up to 64GB versus 48GB of system memory on the ROG Zephyrus M15.

Max system memory size
MSI GS66 Stealth
64 GB
ROG Zephyrus M15
48 GB

ROG Zephyrus M15 Pros

Reasons that ROG Zephyrus M15 is better than MSI GS66 Stealth.

About 10% lighter

ROG Zephyrus M15 weighed 4.18 pounds, 10% lighter than the 4.62 pounds MSI GS66 Stealth.

WeightMSI GS66 StealthROG Zephyrus M15
Pound
4.62 lbs.
4.18 lbs.
Kilogram
2.10 kg
1.90 kg

Key Similars

Similar characteristics share between MSI GS66 Stealth and ROG Zephyrus M15.

Similar CPU performance

Both laptops has a similar multi-core CPU performance score.

Geekbench 5 multi-core score
MSI GS66 Stealth - Intel Core i9-10980HK
7,013
MSI GS66 Stealth - Intel Core i7-10875H
6,874
ROG Zephyrus M15 - Intel Core i7-10875H
6,874
MSI GS66 Stealth - Intel Core i7-10750H
5,412
ROG Zephyrus M15 - Intel Core i7-10750H
5,412
Uses the same memory type and speed

Both laptops supports the same 3200MHz DDR4 RAM.

Memory type and speed
MSI GS66 Stealth - DDR4
3,200 MHz
ROG Zephyrus M15 - DDR4
3,200 MHz
Upgradable memory

Both laptops come with available RAM slots that allow you to replace or upgrade when needed.

MemoryMSI GS66 StealthROG Zephyrus M15
Slots
x2
x0,1
TypeDDR4DDR4

Prices

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

MSI GS66 Stealth Price
MSI Stealth GS66 15.6” 240Hz Gaming Laptop: 12th Gen Intel Core i7, NVIDIA Geforce RTX 3070Ti, 32GB DDR5, 512GB NVMe SSD, Thunderbolt 4, Cooler Boost Trinity+, Win 11 PRO: Black 12UGS-246
 MSI Stealth GS66 15.6” 240Hz Gaming Laptop: 12th Gen Intel Core i7, NVIDIA Geforce RTX 3070Ti, 32GB DDR5, 512GB NVMe SSD, Thunderbolt 4, Cooler Boost Trinity+, Win 11 PRO: Black 12UGS-246
By MSI
$1,299.95
$1,999.99 35% OFF
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MSI GS66 Stealth 15.6" FHD 240Hz 2.5ms Ultra Thin and Light Gaming Laptop, Intel Core i7-11800H, Geforce RTX3060, 32GB RAM, 1TB NVMe SSD, Win11 VR Ready - Black
 MSI GS66 Stealth 15.6" FHD 240Hz 2.5ms Ultra Thin and Light Gaming Laptop, Intel Core i7-11800H, Geforce RTX3060, 32GB RAM, 1TB NVMe SSD, Win11 VR Ready - Black
By MSI
$1,599.99
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MSI GS66 Stealth 15.6" 240Hz 3ms Ultra Thin and Light Gaming Laptop Intel Core i7-10750H RTX2070 Max-Q 16GB 1TB NVMe SSD Win10 VR Ready (10SF-683)
 MSI GS66 Stealth 15.6" 240Hz 3ms Ultra Thin and Light Gaming Laptop Intel Core i7-10750H RTX2070 Max-Q 16GB 1TB NVMe SSD Win10 VR Ready (10SF-683)
By MSI
$1,699.00
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ROG Zephyrus M15 Price
Newest Asus ROG Zephyrus M15 15.6" FHD 240Hz IPS Premium Gaming Laptop, 10th Gen Intel Core i7-10750H, 16GB RAM, 1TB PCIe SSD, NVIDIA GeForce RTX 2070 Max-Q 8GB GDDR6, RGB Backlit Keyboard, Windows 10
 Newest Asus ROG Zephyrus M15 15.6" FHD 240Hz IPS Premium Gaming Laptop, 10th Gen Intel Core i7-10750H, 16GB RAM, 1TB PCIe SSD, NVIDIA GeForce RTX 2070 Max-Q 8GB GDDR6, RGB Backlit Keyboard, Windows 10
By asus
$1,799.00
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Laptop Prism Gray Top Cover US English Backlit Keyboard Palmrest Touchpad Assembly 6053B1798501 Compatible Replacement Spare Part for Asus ROG Zephyrus M15 GU502 Series
 Laptop Prism Gray Top Cover US English Backlit Keyboard Palmrest Touchpad Assembly 6053B1798501 Compatible Replacement Spare Part for Asus ROG Zephyrus M15 GU502 Series
By Generic
$109.24
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Laptop Brushed Black Top Cover US English Backlit Keyboard Palmrest Touchpad Assembly 6053B1883901 Compatible Replacement Spare Part for Asus ROG Zephyrus M15 GU502 Series
 Laptop Brushed Black Top Cover US English Backlit Keyboard Palmrest Touchpad Assembly 6053B1883901 Compatible Replacement Spare Part for Asus ROG Zephyrus M15 GU502 Series
By Generic
$172.49
See at Amazon

Specs Comparison

Availability

MSI GS66 StealthROG Zephyrus M15
Released20202020
Generations-

Exterior

MSI GS66 StealthROG Zephyrus M15
Dimensions14.10” x 9.76” x 0.72 ~ 0.79” (358.3 x 248 x 18.3 ~ 19.8 mm)Brushed Black models
  • 14.17” x 9.92” x 0.74” (360 x 252 x 18.9 mm)
Prism Gray / Black
  • 14.17” x 9.92” x 0.78” (360 x 252 x 19.9 mm)
Weight4.62 lbs (2.1 kg)4.18 lbs (1.9 kg)
Colors-
Brushed Black Prism Gray
Keyboard and Trackpad
  • Per-Key RGB gaming keyboard by SteelSeries
  • Silky smooth touchpad with multi-touch gesture
  • Backlit chicklet keyboard
  • Brushed Black: Per-key RGB lighting
  • Prism Gray / Black: One-zone RGB lighting
  • Aura Sync
  • Hotkeys: Volume up / Volume down / Microphone mute / ROG Armoury Crate
  • N key rollover

Display

MSI GS66 StealthROG Zephyrus M15
Size15.6 Inches15.6 Inches
Info
  • 15.6" UHD (3840x2160), IPS-Level
  • 15.6" FHD (1920x1080), 240Hz, IPS-Level
  • 15.6" FHD (1920x1080), 300Hz, IPS-Level
  • 15.6-inch 4K UHD (3840x2160) IPS-level panel, 60Hz, 100% Adobe RGB, Pantone® Validated
  • 15.6-inch Full HD (1920x1080) IPS-level panel, 240Hz, 3ms, 100% sRGB, Pantone® Validated
  • 15.6-inch Full HD (1920x1080) IPS-level panel, 144Hz

Ports

MSI GS66 StealthROG Zephyrus M15
MSI GS66 Stealth Ports
Image Source: MSI
Left (4)
  • 1 x Thunderbolt 3
    40 Gpbs, USB 3.2 Gen 2 (10 Gbps), DisplayPort, Power Delivery
  • 1 x USB-A
    USB 3.2 Gen 2 (10 Gbps)
  • 1 x HDMI
    4K@60Hz
  • 1 x power port
Right (5)
  • 1 x USB-C
    USB 3.2 Gen 2 (10 Gbps)
  • 2 x USB-A
    USB 3.2 Gen 2 (10 Gbps)
  • 1 x RJ-45
    1 Gbps
  • 1 x headphone jack
    Headphone/Microphone
ROG Zephyrus M15 Ports
Image Source: ASUS
  • 1 x Thunderbolt™ 3
    with USB 3.2 Gen 2 Type-C, DisplayPort™ 1.4 and Power Delivery.
  • 1 x USB 3.2 Gen 2 Type-A
  • 2 x USB 3.2 Gen 1 Type-A
  • 1 x HDMI 2.0b
  • 1 x 3.5mm Audio jack (ESS Hi-Fi DAC)
  • 1 x Audio jack mic-in
  • 1 x Kensington lock
  • 1 x RJ-45 jack

Internal Specs

MSI GS66 StealthROG Zephyrus M15
Processor
  1. 10th Gen Intel® Core™ i7-10750H
    6 cores, 12 threads, 2.60 → 5.00 GHz, 12MB SmartCache, 45W
  2. 10th Gen Intel® Core™ i7-10875H
    8 cores, 16 threads, 2.30 → 5.10 GHz, 16MB SmartCache, 45W
  3. 10th Gen Intel® Core™ i9-10980HK
    8 cores, 16 threads, 2.40 → 5.30 GHz, 16MB SmartCache, 45W
  1. 10th Gen Intel® Core™ i7-10750H
    6 cores, 12 threads, 2.60 → 5.00 GHz, 12MB SmartCache, 45W
  2. 10th Gen Intel® Core™ i7-10875H
    8 cores, 16 threads, 2.30 → 5.10 GHz, 16MB SmartCache, 45W
Integrated Graphics
  1. 10th Gen Intel® Core™ i7-10750H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1150 MHz
  2. 10th Gen Intel® Core™ i7-10875H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
  3. 10th Gen Intel® Core™ i9-10980HK
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1250 MHz
  1. 10th Gen Intel® Core™ i7-10750H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1150 MHz
  2. 10th Gen Intel® Core™ i7-10875H
    Intel® UHD Graphics 630
    24 Execution Units, 350 → 1200 MHz
MemoryUp to 64GB 3200MHz Dual-channel DDR4 SDRAM
2 x SO-DIMM slots.
Up to 48GB DDR4 3200MHz SDRAM
16GB on-board memory.
Discrete Graphics
GS66 Stealth 10SGS
  • NVIDIA® GeForce® RTX 2080 SUPER™ With Max-Q Design
    Video memory: 8GB GDDR6 VRAM.
GS66 Stealth 10SFS
  • NVIDIA® GeForce® RTX 2070 SUPER™ With Max-Q Design
    Video memory: 8GB GDDR6 VRAM.
GS66 Stealth 10SF
  • NVIDIA® GeForce RTX™ 2070 With Max-Q Design
    Video memory: 8GB GDDR6 VRAM.
GS66 Stealth 10SE
  • NVIDIA® GeForce RTX™ 2060
    Video memory: 6GB GDDR6 VRAM.
GS66 Stealth 10SD
  • NVIDIA® GeForce® GTX 1660 Ti
    Video memory: 6GB GDDR6 VRAM.
ROG Zephyrus M15 GU502LW
  • NVIDIA® GeForce® RTX 2070 with 8GB GDDR6 VRAM (Boost Clock: 1360MHz, 90W)
ROG Zephyrus M15 GU502LV
  • NVIDIA® GeForce® RTX 2060 with 8GB GDDR6 VRAM (Boost Clock: 1450MHz, 90W)
ROG Zephyrus M15 GU502LU
  • NVIDIA® GeForce® GTX 1660 Ti with 6GB GDDR6 VRAM (Boost Clock: 1690MHz 80W)
Storage
  • 1x M.2 SSD slot (NVMe PCIe Gen3)
  • 1x M.2 SSD Combo slot (NVMe PCIe Gen3 / SATA)
  • Single
    • 512GB 1TB
      M.2 NVMe PCIe SSD
  • Dual
    • 512GB+512GB 1TB+1TB
      M.2 NVMe PCIe SSD
      Supports RAID 0.

Connectivity

MSI GS66 StealthROG Zephyrus M15
Wi-Fi802.11 AX Wi-Fi 6Intel® Wi-Fi 6 with Gig+ performance (802.11ax)
BluetoothBluetooth 5.1Bluetooth 5.1
Ethernet
  • Killer Gigabit LAN
    Speed: 10/100/1000 Mbps.
  • Gigabit LAN
    Speed: 10/100/1000 Mbps.

Battery

MSI GS66 StealthROG Zephyrus M15
Size99.9 Wh (4-cell Li-Polymer battery)-
Battery Life-
  • Up to 7 hours and 47 minutes
    Web Browsing.
  • Up to 8 hours and 41 minutes
    Video Playback.
Power Supply
MSI GS66 Stealth 10SD/SE
  • 180W slim power adapter
MSI GS66 Stealth 10SF/SFS/SGS
  • 230W slim power adapter
  • 230W power adaptor
    Propriety charger.
  • Supports charging via USB-C
    Supports USB Type-C PD 3.0 up to 65W.

Software

MSI GS66 StealthROG Zephyrus M15
OSWindows 10 Home
  • Windows 10 Home
  • Windows 10 Pro
Built-in Apps-
Armoury Crate GameFirst VI GameVisual Sonic Studio III

Camera & Audio

MSI GS66 StealthROG Zephyrus M15
Camera
  • Front-facing camera
    720p (1280 x 720 HD) camera.
  • IR camera for Windows Hello support.
  • No Built-in camera.
Audio
  • 2x 2W Speaker
  • Sound by Dynaudio and Duo wave speaker
  • Array Microphone
  • 2 speakers with Smart AMP technology
  • Array Microphone

Misc

MSI GS66 StealthROG Zephyrus M15
Security
  • Enterprise-grade protection with Windows Hello face sign-in
-

Key Features

MSI GS66 StealthROG Zephyrus M15
At Glance
Released in
2020
16:9 FHD
15.6”
1080p 300Hz
Weight
4.62 lb
2.10 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
64GB
3200 MHz DDR4
MSI GS66 Stealth Ports
NVIDIA GeForce
RTX 2080 SUPER
8GB GDDR6 with Max-Q
Released in
2020
16:0
15.6”
1080p 240Hz
Weight
4.18 lb
1.90 kg
Up to
Intel Core i7-10875H
8C/16T, 2.30 → 5.10 GHz
Geekbench 5
1,192
Single Core
Geekbench 5
6,874
Multi-Core
With integrated
Intel® UHD Graphics 630
24 Execution Units, 350 → 1200 MHz
Upgradable up to
48GB
3200 MHz DDR4
ROG Zephyrus M15 Ports
Nvidia GeForce
RTX 2070
8GB GDDR6 80W TGP

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