In depth comparison and review of MSI GS66 12UGS (203UK Stealth) and Lenovo Legion Y520-15IKBM (80YY). 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.
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
| DESIGN AND DIMENSIONS | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| Product Type | Notebook | Notebook |
|---|---|---|
| Dimensions (WxDxH) | 35.83 cm x 24.8 cm x 1.98 cm | 38 cm x 26.5 cm x 2.78 cm |
| Weight | 2.1 kg | 2.4 kg |
| Case Material | - | Polycarbonate ABS |
| Colour | Core black | Black |
| DISPLAY | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| Screen Size (Type) | 15.6" | 15.6" - IPS |
|---|---|---|
| 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 | - |
| Widescreen | Yes | Yes |
| Image Aspect Ratio | 16:9 | 16:9 |
| Image Brightness | - | 250 cd/m² |
| Colour Gamut | 100% DCI-P3 | - |
| Features | MSI Matrix Display, IPS-level | Anti-glare |
| PROCESSOR | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| CPU | Intel Core i7 (12th Gen) 12700H / 2.3 GHz | Intel Core i7 (7th Gen) 7700HQ / 2.8 GHz |
|---|---|---|
| Max Turbo Speed | 4.7 GHz | 3.8 GHz |
| Number of Cores | 14-core | Quad-Core |
| Cache | 24 MB | 6 MB |
| 64-bit Computing | - | Yes |
| Chipset | - | Mobile Intel HM175 |
| Features | Hyper-Threading Technology, Intel Smart Cache, Intel Turbo Boost Max Technology 3.0, Intel Deep Learning Boost (DL Boost) | Integrated memory controller |
| MEMORY | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| RAM | 32 GB (2 x 16 GB) | 8 GB (1 x 8 GB) |
|---|---|---|
| Max RAM Supported | 64 GB | 32 GB |
| RAM Type | DDR5 SDRAM | DDR4 SDRAM |
| Speed | 4800 MHz | 2400 MHz |
| Rated Speed | - | 2400 MHz |
| Form Factor | SO-DIMM 262-pin | SO-DIMM 260-pin |
| Slots Qty | 2 | 2 |
| Empty Slots | 0 | 1 |
| STORAGE | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| Main Storage Size (HDD/SSD) | 1 TB SSD M.2 PCIe 4.0 x4 - NVM Express (NVMe) | 128 GB SSD M.2 PCIe - NVM Express (NVMe) - Samsung |
|---|---|---|
| Secondary Storage | - | 1 TB HDD SATA 6Gb/s / 5400 rpm - Seagate |
| AUDIO & VIDEO | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| Graphics Processor (GPU) | NVIDIA GeForce RTX 3070 Ti | NVIDIA GeForce GTX 1060 |
|---|---|---|
| Video Memory | 8 GB GDDR6 SDRAM | 6 GB GDDR5 SDRAM |
| Video System Features | Max-Q design, Dynamic Boost | Max-Q design |
| Gaming | Yes | Yes |
| Camera | Yes - 720p | Yes - 720p |
| Resolution | - | 1 Megapixel |
| Camera Features | IR camera | - |
| Frame Rate | 30 frames per second | - |
| Sound | Stereo speakers, microphone | Stereo speakers, dual array microphone |
| Compliant Standards | - | High Definition Audio, Dolby Audio |
| Audio Features | Dynaudio Premium Sound Technology, Nahimic 3 sound technology | Output: Harman audio technology |
| COMMUNICATIONS | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| Wireless | Bluetooth 5.2, 802.11a/b/g/n/ac/ax (Wi-Fi 6E) | 802.11a/b/g/n/ac, Bluetooth 4.1 |
|---|---|---|
| Wireless Controller | Killer Wi-Fi 6E AX1675 | Intel Dual Band Wireless-AC 3165 - M.2 Card |
| Network Interface | 2.5 Gigabit Ethernet | Gigabit Ethernet |
| Ethernet Controller | Killer E3100G | - |
| Features | Dual stream (2x2) | - |
| BATTERY | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| Technology | 4-cell lithium polymer | 3-cell Lithium Ion |
|---|---|---|
| Battery Capacity (Size) | 99.9 Wh | 45 Wh |
| Battery Life | - | Up to 4 hours |
| AC ADAPTER | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| Input | - | AC 120/230 V (50/60 Hz) |
|---|---|---|
| Output | 240 Watt | 135 Watt, 20 V, 6.75 A |
| INPUT | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| Type | Keyboard, touchpad | Keyboard, touchpad |
|---|---|---|
| Numeric Keypad | - | Yes |
| Keyboard Backlight | Yes (RGB) | Yes |
| Features | Per-key RGB | - |
| CONNECTIONS & EXPANSIONS | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| 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 |
USB-C (supports DisplayPort 1.2 Alt Mode) 2 x USB 3.0 USB 2.0 HDMI LAN Headphone/microphone combo jack Mini DisplayPort |
| SOFTWARE | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| Operating System (OS) | Windows 11 Home Advanced | Windows 10 Home 64-bit Edition |
|---|---|---|
| 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 | - |
| MISCELLANEOUS | MSI GS66 12UGS (203UK Stealth) | Lenovo Legion Y520-15IKBM (80YY) |
|---|
| Included Accessories | Power adapter | Power adapter |
|---|---|---|
| Security | Fingerprint reader | - |
| Security Slot Type | - | Kensington mini security slot |
| Theft/Intrusion Protection | - | Security lock slot (cable lock sold separately) |
| Features | SteelSeries gaming keyboard, Cooler Boost Trinity+ technology | Administrator password, hard drive password, power-on password |
| Compliant Standards | - | RoHS |
| Manufacturer Warranty | Limited warranty - 2 years | - |
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