MSI Alpha 15 (B5EEK) vs. MSI GS66 12UGS (203UK Stealth)

Laptop Comparison, Reviews and Tests

In depth comparison and review of MSI Alpha 15 (B5EEK) and MSI GS66 12UGS (203UK Stealth). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.

MSI Alpha 15 (B5EEK) Review

Advantages and disadvantages of MSI Alpha 15 (B5EEK) based on its technical characteristics, features, user experience, expert reviews and price level.

powerful AMD processor

vivid 144Hz display

RGB backlit keyboard

ample connectivity options

decent gaming performance

average battery life

heavier build

noisy under load

limited upgradeability

MSI GS66 12UGS (203UK Stealth) Review

Advantages and disadvantages of MSI GS66 12UGS (203UK Stealth) based on its technical characteristics, features, user experience, expert reviews and price level.

powerful gaming performance

high refresh rate display

sleek, durable design

advanced cooling system

good battery life

relatively expensive

heavy for portability

noisy under load

limited color accuracy

Laptop Comparison and Tests

Difference between MSI Alpha 15 (B5EEK) and MSI GS66 12UGS (203UK Stealth)
85 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
75 % - Battery
85 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

MSI Alpha 15 (B5EEK) vs. MSI GS66 12UGS (203UK Stealth) Comparison Chart
DESIGN AND DIMENSIONS MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Product Type Notebook Notebook
Dimensions (WxDxH) 35.9 cm x 25.9 cm x 2.495 cm 35.83 cm x 24.8 cm x 1.98 cm
Weight 2.35 kg 2.1 kg
Colour Black Core black
DISPLAY MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Screen Size (Type) 15.6" 15.6"
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 1920 x 1080 (Full HD) 2560 x 1440 (QHD)
V-Sync Rate at Max Res. 144 Hz 240 Hz
Widescreen Yes Yes
Image Aspect Ratio 16:9 16:9
Colour Gamut - 100% DCI-P3
Features MSI Matrix Display, IPS-level MSI Matrix Display, IPS-level
PROCESSOR MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
CPU AMD Ryzen 7 5800H / 3.2 GHz Intel Core i7 (12th Gen) 12700H / 2.3 GHz
Max Turbo Speed 4.4 GHz 4.7 GHz
Number of Cores 8-core 14-core
Cache L3 - 16 MB 24 MB
Features - Hyper-Threading Technology, Intel Smart Cache, Intel Turbo Boost Max Technology 3.0, Intel Deep Learning Boost (DL Boost)
MEMORY MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
RAM 16 GB (2 x 8 GB) 32 GB (2 x 16 GB)
Max RAM Supported - 64 GB
RAM Type DDR4 SDRAM DDR5 SDRAM
Speed 3200 MHz 4800 MHz
Form Factor SO-DIMM 260-pin SO-DIMM 262-pin
Slots Qty 2 2
Empty Slots 0 0
STORAGE MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Main Storage Size (HDD/SSD) 512 GB SSD M.2 PCIe 3.0 x4 - NVM Express (NVMe) 1 TB SSD M.2 PCIe 4.0 x4 - NVM Express (NVMe)
AUDIO & VIDEO MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Multi-GPU Configuration 1 single GPU card / integrated GPU -
Graphics Processor (GPU) AMD Radeon RX 6600M / AMD Radeon Graphics NVIDIA GeForce RTX 3070 Ti
Video Memory 8 GB GDDR6 SDRAM 8 GB GDDR6 SDRAM
Video System Features - Max-Q design, Dynamic Boost
Gaming Yes Yes
Camera Yes - 720p Yes - 720p
Camera Features - IR camera
Frame Rate 30 frames per second 30 frames per second
Sound Stereo speakers, microphone Stereo speakers, microphone
Audio Features Nahimic 3 sound technology Dynaudio Premium Sound Technology, Nahimic 3 sound technology
COMMUNICATIONS MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Wireless 802.11a/b/g/n/ac/ax, Bluetooth 5.1 Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E)
Wireless Controller Intel Wi-Fi 6 AX 200 Killer Wi-Fi 6E AX1675
Network Interface Gigabit Ethernet 2.5 Gigabit Ethernet
Ethernet Controller - Killer E3100G
Features Dual stream (2x2) Dual stream (2x2)
BATTERY MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Technology 4-cell 4-cell lithium polymer
Battery Capacity (Size) 90 Wh 99.9 Wh
AC ADAPTER MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Output 180 Watt 240 Watt
INPUT MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Type Keyboard, touchpad, NumberPad Keyboard, touchpad
Numeric Keypad Yes -
Keyboard Backlight Yes (RGB) Yes (RGB)
Features - Per-key RGB
CONNECTIONS & EXPANSIONS MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Slots - 2 x M.2 (PCI Express 4.0) (1 free)
Interfaces Headphone/microphone combo jack
USB 2.0
HDMI
USB-C 3.2 Gen 1 (supports DisplayPort Alt Mode)
2 x USB 3.2 Gen 1
LAN (RJ-45)
LAN
HDMI
USB-C (supports Thunderbolt 4, DisplayPort Alt Mode) (Power Delivery)
2 x USB-C 3.2 Gen 2 (supports DisplayPort Alt Mode)
2 x USB 3.2 Gen 2
Headphone/microphone combo jack
SOFTWARE MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Operating System (OS) Windows 10 Home Windows 11 Home Advanced
Software Included MSI APP Player, MSI Center Norton Internet Security (60 days trial), Killer Network Manager, MSI Mystic Light, NVIDIA GeForce Experience, MSI APP Player, MSI Center, MSI Battery Master, SteelSeries GG, MSI Companion, Game Highlights, Ambient Link, Crosshair
MISCELLANEOUS MSI Alpha 15 (B5EEK) MSI GS66 12UGS (203UK Stealth)
Included Accessories Power adapter Power adapter
Security - Fingerprint reader
Features Cooler Boost 5 technology SteelSeries gaming keyboard, Cooler Boost Trinity+ technology
Manufacturer Warranty Limited warranty - 1 year Limited warranty - 2 years
Model Number 064UK -
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