MSI GS66 12UGS (203UK Stealth) vs. MSI Delta 15 (A5EFK)

Laptop Comparison, Reviews and Tests

In depth comparison and review of MSI GS66 12UGS (203UK Stealth) and MSI Delta 15 (A5EFK). 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 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

MSI Delta 15 (A5EFK) Review

Advantages and disadvantages of MSI Delta 15 (A5EFK) based on its technical characteristics, features, user experience, expert reviews and price level.

powerful amd processor

lightweight and portable

high refresh rate display

solid build quality

efficient thermal management

average battery life

limited port selection

high price point

noisy under load

Laptop Comparison and Tests

Difference between MSI GS66 12UGS (203UK Stealth) and MSI Delta 15 (A5EFK)
85 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
75 % - Battery
82 % - Design
85 % - Display
85 % - Performance
85 % - Connectivity
75 % - Battery

Laptop Specifications Comparison

MSI GS66 12UGS (203UK Stealth) vs. MSI Delta 15 (A5EFK) Comparison Chart
DESIGN AND DIMENSIONS MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Product Type Notebook Notebook
Dimensions (WxDxH) 35.83 cm x 24.8 cm x 1.98 cm 35.7 cm x 24.7 cm x 1.9 cm
Weight 2.1 kg 1.9 kg
Colour Core black Carbon grey
DISPLAY MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Screen Size (Type) 15.6" 15.6"
LCD Backlight Technology LED backlight LED backlight
Screen Resolution 2560 x 1440 (QHD) 1920 x 1080 (Full HD)
V-Sync Rate at Max Res. 240 Hz 240 Hz
Widescreen Yes Yes
Image Aspect Ratio 16:9 -
Colour Gamut 100% DCI-P3 -
Features MSI Matrix Display, IPS-level -
PROCESSOR MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
CPU Intel Core i7 (12th Gen) 12700H / 2.3 GHz AMD Ryzen 9 5900HX / 3.3 GHz
Max Turbo Speed 4.7 GHz 4.6 GHz
Number of Cores 14-core 8-core
Cache 24 MB 16 MB
Features Hyper-Threading Technology, Intel Smart Cache, Intel Turbo Boost Max Technology 3.0, Intel Deep Learning Boost (DL Boost) -
MEMORY MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
RAM 32 GB (2 x 16 GB) 16 GB (2 x 8 GB)
Max RAM Supported 64 GB -
RAM Type DDR5 SDRAM DDR4 SDRAM
Speed 4800 MHz 3200 MHz
Form Factor SO-DIMM 262-pin SO-DIMM 260-pin
Slots Qty 2 2
Empty Slots 0 0
STORAGE MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Main Storage Size (HDD/SSD) 1 TB SSD M.2 PCIe 4.0 x4 - NVM Express (NVMe) 1 TB SSD PCIe 3.0 x4 - NVM Express (NVMe), Quad-level Cell (QLC)
AUDIO & VIDEO MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Graphics Processor (GPU) NVIDIA GeForce RTX 3070 Ti AMD Radeon RX 6700M
Video Memory 8 GB GDDR6 SDRAM 10 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
Audio Features Dynaudio Premium Sound Technology, Nahimic 3 sound technology -
COMMUNICATIONS MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Wireless Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) 802.11a/b/g/n/ac/ax, Bluetooth 5.1
Wireless Controller Killer Wi-Fi 6E AX1675 Intel Wi-Fi 6 AX 200
Network Interface 2.5 Gigabit Ethernet -
Ethernet Controller Killer E3100G -
Features Dual stream (2x2) Dual stream (2x2)
BATTERY MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Technology 4-cell lithium polymer 4-cell
Battery Capacity (Size) 99.9 Wh 82 Wh
AC ADAPTER MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Output 240 Watt 240 Watt
INPUT MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Type Keyboard, touchpad Keyboard, touchpad
Keyboard Backlight Yes (RGB) Yes (RGB)
Features Per-key RGB -
CONNECTIONS & EXPANSIONS MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Slots 2 x M.2 (PCI Express 4.0) (1 free) -
Interfaces 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
Headphone/microphone combo jack
USB-C 3.2 Gen 2 (supports DisplayPort Alt Mode)
USB-C 3.2 Gen 2
2 x USB 3.2 Gen 2
HDMI
SOFTWARE MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Operating System (OS) Windows 11 Home Advanced Windows 10 Home
Software Included 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 MSI APP Player, MSI Center
MISCELLANEOUS MSI GS66 12UGS (203UK Stealth) MSI Delta 15 (A5EFK)
Included Accessories Power adapter Power adapter
Security Fingerprint reader -
Features SteelSeries gaming keyboard, Cooler Boost Trinity+ technology Cooler Boost 5 technology
Manufacturer Warranty Limited warranty - 2 years Limited warranty - 1 year
Model Number - 046UK
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