MSI Stealth 18 HX AI (Core Ultra 9 275HX, 64GB, 2TB)
We'd skip this one if you're a stem student.
Updated July 2026

MSI Stealth 18 HX AI (Core Ultra 9 275HX, 64GB, 2TB)

MSI · Stealth 18 HX AI (Core Ultra 9 275HX, 64GB, 2TB) · 2025
S$4,975 – S$6,081
approximate range, Singapore street price
STEM Student SelvaScore
29 / 100
#1447 of 1561 ranked for this lens
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View through another lens ↓
Weight 2.90 kg
Battery 4.0 hr
Display 18.0" 3840x2400
RAM 64 GB
Storage 2 TB

SelvaScore breakdown for STEM Students

What STEM Students need from a laptop, and where this one lands. These SelvaScores change with the use case lens you choose.

  • 76
    Multi-Core Performance Multi-Thread Scalability
    How fast the CPU handles heavy multi-tasking, video exports, and compilation workloads. Sustained multi-threaded CPU performance under thermal limits; measured via Cinebench nT.
  • 70
    System Memory RAM Capacity
    How much RAM the laptop has for running apps, browser tabs, and background processes simultaneously. Total installed DRAM capacity in GB; determines multi-application concurrency ceiling.
  • 66
    Single-Core Speed Single-Thread Velocity
    How fast the CPU handles everyday tasks like opening apps, browsing, and quick calculations. Single-core IPC × clock speed; measured via Cinebench R23/R24 1T and Geekbench 6 single-core.
  • 58
    Storage Speed Storage Throughput
    How fast the internal drive reads and writes — affects boot times, file transfers, and game load times. Sequential read/write speeds in MB/s for the primary NVMe SSD; PCIe 4.0 vs 3.0 tier distinction.
  • 22
    Battery Life Autonomous Runtime
    How long the laptop lasts on a single charge during typical everyday use. Runtime under mixed workload normalized to battery capacity and platform power draw.
  • 70
    AI Acceleration NPU Inference Capacity
    Whether the laptop has dedicated AI hardware to speed up tasks like live captions, photo tools, and on-device AI. Neural processing unit TOPS rating; determines Copilot+ eligibility and on-device AI workload support.
  • 30
    Weight Gravitational Load
    How heavy the laptop is to carry around day-to-day. Total system mass in kilograms; charger weight excluded.
  • 66
    Thermal Stability Thermal Throttling Resistance
    Whether the CPU maintains its speed under heavy workloads or slows down due to heat buildup. Frequency drop percentage from initial boost to sustained operating frequency under prolonged full-load stress.

Objective profile of the laptop

How this laptop performs, regardless of the use case lens you choose. The same ten objective ratings for every buyer.

GraphicsGPU 93
How well it drives 3D models in CAD software and speeds up GPU-based simulation and rendering.GPU performance for 3D CAD viewport rendering and GPU-accelerated simulation and rendering tasks.
PerformanceCPU 76
How fast it runs engineering tools like CAD and MATLAB, and how well it crunches parallel simulations.CPU performance across single-thread (compilation, responsiveness) and multi-thread (simulation, rendering) engineering workloads.
ScreenDisplay 92
How clear, bright, and colorful the screen is, and how comfortable it stays in different lighting.Panel quality across brightness, contrast, color accuracy, resolution, refresh rate, and glare handling.
MemoryRAM 63
Whether it can load large engineering models and datasets without running out of memory and crashing.Memory capacity for loading large CAD models, datasets, and simulations without out-of-memory failures.
StorageStorage 68
The room for your files, photos, and apps, plus how quickly everything loads and saves.Storage capacity and SSD read/write speed governing available space and file and application load times.
PortsConnectivity 52
How easily it connects your devices and how dependably it holds Wi-Fi on crowded campus networks.Port selection and Wi-Fi standard, especially wireless reliability on congested campus networks.
SoundMultimedia 70
How good the speakers, webcam, and microphone are for calls, streaming, and watching video.Speaker output, webcam quality, and microphone capability for conferencing and media playback.
KeyboardInput 59
How nice the keyboard is to type on and how smooth and accurate the trackpad is.Keyboard key travel and feedback, plus trackpad size and tracking accuracy for typing and navigation.
MobilityMobility 37
How comfortable it is to carry around campus and how long it runs between charges.Portability and battery runtime for carrying between classes and the hours of use between charges.
BuildChassis 59
How well it stays cool and stable during long calculation sessions, and how solid the build is.Thermal management for sustained engineering workloads, plus structural rigidity for daily carry.

How it ranks in every lens

Click any lens to see this laptop through it.

Balanced
28
Active lens
Daily Driver
28
Active lens
Remote Worker
39
Active lens
Digital Nomad
37
Active lens
Family Hub
85
Active lens
Casual Gamer
70
Active lens
Gaming
89
Active lens
AAA Gamer
91
Active lens
Esports
62
Active lens
Streamer
86
Active lens
Sleeper
41
Active lens
Strategy / Simulation
95
Active lens
Student
27
Active lens
STEM Student
29
Active lens
Campus Commuter
36
Active lens
Digital Note Taker
37
Active lens
Researcher
30
Active lens
Multimedia
32
Active lens
Creator
62
Active lens
Video Editor
75
Active lens
3D Artist
97
Active lens
Audio Engineer
42
Active lens
Visualist
61
Active lens
Social Media Creator
40
Active lens
Workstation
85
Active lens
CAD / BIM
90
Active lens
Full-Stack Dev
49
Active lens
Financial Analyst
84
Active lens
Field Engineer
29
Active lens
AI / ML
91
Active lens

What experts report

Verdicts from professional reviews, matched to standard categories. Separate from the spec-based scores and owner experience above.

Performance

  • solid overall performance

Display

  • a panel readable in bright daylight, often dimmed indoors
  • clear corner light bleed or uneven backlighting on dark screens

Heat & fan noise

  • a fan that stays off during light tasks like browsing
  • fans louder than expected but something you adjust to
  • a deck and underside too hot for the hands and lap

Keyboard & input

  • firm, satisfying keys that stay comfortable over long sessions
  • a trackpad that is occasionally twitchy or imprecise

Mobility & battery

  • that it is so light they barely notice carrying it
  • somewhat less battery life than the rated figure
  • charging that is slow or a cable that is too short

Build & chassis

  • the chassis creaking or flexing under pressure
  • the screen wobbling or feeling loose when open

Connectivity

  • wishing for one more port, or a slightly awkward placement
  • external monitors that work only after fiddling, or only one port outputs video

Technical profile

Use the Technical toggle in the top bar for deeper detail.

Processor & Graphics
ProcessorIntel Core Ultra 9 275HX
GraphicsRTX 5090
Display
Display18.0" 3840x2400
Memory & Storage
Memory64 GB
Storage2 TB
Software & Battery
OSWindows
Battery4.0 hr
Weight2.90 kg
Processor
CPUIntel Core Ultra 9 275HX · Class H · Gen 2
Graphics
GPURTX 5090 · 24 GB VRAM
Display
Screen18.0" · 3840x2400 · 120 Hz · MINI_LED
Color gamutunknown
Memory
RAM64 GB LPDDR5X
Storage
Capacity2 TB
TypeNVMe PCIe 4
Connectivity
Wi-FiWi-Fi 7
Thunderbolt 4Yes
Build & chassis
MaterialUnknown
Form factorClamshell
Weight2.90 kg
Thickness23.876 mm
Battery & power
Battery4.0 hr
Software
OSWindows

Improve on this

Want one thing better? Each row is a different laptop that beats this one on that point and still scores well for stem students, with the price difference shown.

Longer battery 4h → 18h
Apple MacBook Pro 14 (M5 Pro, 24GB, 2TB)
Apple MacBook Pro 14 (M5 Pro, 24GB, 2TB) STEM Student 99 +70 camera & audio 70→91ports 52→70build 59→77GPU 93→64RAM 63→34display 92→79+1 more -S$1934 Lighter 2.9kg → 1.84kg
Lenovo ThinkPad T1g Gen 8 (Core Ultra 9 285H, 64GB, 2TB)
Lenovo ThinkPad T1g Gen 8 (Core Ultra 9 285H, 64GB, 2TB) STEM Student 99 +70 ports 52→85keyboard 59→79camera & audio 70→77GPU 93→74CPU 76→65display 92→88+1 more +S$85 Better ports 52 → 86 + USB-C charging, SD reader
Lenovo ThinkPad P1 Gen 7 (Core Ultra 9 185H, 64GB, 4TB)
Lenovo ThinkPad P1 Gen 7 (Core Ultra 9 185H, 64GB, 4TB) STEM Student 97 +68 battery & weight 37→64keyboard 59→74build 59→72GPU 93→62display 92→78CPU 76→63+1 more +S$530 Better build 59 → 73
Lenovo Legion 5i Gen 10 (Core Ultra 7 255HX, 64GB, 4TB)
Lenovo Legion 5i Gen 10 (Core Ultra 7 255HX, 64GB, 4TB) STEM Student 92 +63 RAM 63→81ports 52→68battery & weight 37→53GPU 93→68display 92→72CPU 76→65+3 more -S$2252 Cheaper
Lenovo Legion 5 (Core Ultra 9 275HX, 64GB, 2TB)
Lenovo Legion 5 (Core Ultra 9 275HX, 64GB, 2TB) STEM Student 95 +66 ports 52→78battery & weight 37→50RAM 63→73keyboard 59→34GPU 93→71display 92→71+2 more -S$1782

How we ranked these

SelvaScore is independent. Rankings reflect our editorial judgment, not vendor relationships. No laptop manufacturer pays for placement, and affiliate revenue from retailers does not affect which laptop wins this list.

Every laptop here has been evaluated through the same lens for this use case. The same machines are evaluated differently for other use cases. What works for one use case doesn't always work for another.

Read about how we work →

Something look off?

Own this laptop, reviewed it professionally, or just think we're wrong? We read every submission. Verified corrections may influence future SelvaScores.

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A SelvaScore measures how well one product fits a specific use-case lens, on a 0 to 100 scale, rating fit for that use rather than overall quality or price.

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The information behind each score includes manufacturer specifications, benchmarks, and verified comments from owners and reviewers, and because each lens values these differently, the same laptop can score differently from one lens to the next.

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