It's not easy beating Razer in the thin and light department, but MSI managed to do just that with its latest Stealth 18 HX laptop. The system is 200 g lighter (3.0 kg vs. 3.2 kg) and 4 mm thinner (23.9 mm vs. 27.9 mm) than the Blade 18 to be one of the thinnest in its category. Frequent travelers who value portability as much as the spacious 18-inch screen size can appreciate the savings in weight and volume. Look deeper into their performance differences, however, and the caveats begin to show.
While the Stealth 18 and Blade 18 can be configured with similar processors, the Stealth 18 comes up a bit short almost consistently. Our graphs below compare the two systems each equipped with the Core Ultra 9 275HX CPU and GeForce RTX 5090 GPU and the Blade 18 would come out ahead by a few percentage points the vast majority of the time. The differences aren't particularly major, but enthusiasts or performance hunters may nevertheless find the Razer system to be the more desirable option.
On the other hand, users who don't mind losing a bit of performance for a thinner and lighter design may find the MSI model to be the better option instead. The Stealth 18 even ships with a smaller 280 W AC adapter versus the 330 W adapter for the Razer to improve portability and reduce power consumption even further. Users can check out our full review on the Stealth 18 HX to learn more about the differences between it and the Razer system.
Cinebench R15 Multi Loop
Cinebench R23: Multi Core | Single Core
Cinebench R20: CPU (Multi Core) | CPU (Single Core)
Cinebench R15: CPU Multi 64Bit | CPU Single 64Bit
Blender: v2.79 BMW27 CPU
7-Zip 18.03: 7z b 4 | 7z b 4 -mmt1
Geekbench 6.5: Multi-Core | Single-Core
Geekbench 5.5: Multi-Core | Single-Core
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
| CPU Performance rating | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Cinebench R23 / Multi Core | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Cinebench R23 / Single Core | |
| MSI Stealth 18 HX AI A2XW | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Cinebench R20 / CPU (Multi Core) | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Cinebench R20 / CPU (Single Core) | |
| MSI Stealth 18 HX AI A2XW | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Cinebench R15 / CPU Multi 64Bit | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Cinebench R15 / CPU Single 64Bit | |
| MSI Stealth 18 HX AI A2XW | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Blender / v2.79 BMW27 CPU | |
| MSI Stealth 18 HX AI A2XW | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| 7-Zip 18.03 / 7z b 4 | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| 7-Zip 18.03 / 7z b 4 -mmt1 | |
| MSI Stealth 18 HX AI A2XW | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Geekbench 6.5 / Multi-Core | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Geekbench 6.5 / Single-Core | |
| MSI Stealth 18 HX AI A2XW | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Geekbench 5.5 / Multi-Core | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Geekbench 5.5 / Single-Core | |
| MSI Stealth 18 HX AI A2XW | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| HWBOT x265 Benchmark v2.2 / 4k Preset | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| LibreOffice / 20 Documents To PDF | |
| MSI Stealth 18 HX AI A2XW | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| R Benchmark 2.5 / Overall mean | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
* ... smaller is better
| 3DMark Performance rating - Percent | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| 3DMark 11 - 1280x720 Performance GPU | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| 3DMark | |
| 1920x1080 Fire Strike Graphics | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 Time Spy Graphics | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 Time Spy Score | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 Speed Way Score | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Steel Nomad Score | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 Port Royal Graphics | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Assassin's Creed Shadows | |
| 1920x1080 Ultra High | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (44 - 76, n=14) | |
| 2560x1440 Ultra High | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (37 - 64, n=15) | |
| 3840x2160 Ultra High | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (35 - 46, n=12) | |
| 2560x1440 Ultra High + DLSS Quality | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (45 - 76, n=8) | |
| 3840x2160 Ultra High + DLSS Quality | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (47 - 61, n=8) | |
| 2560x1440 Ultra High + GI + DLSS Quality + FG | |
| Average NVIDIA GeForce RTX 5090 Laptop (87 - 108, n=6) | |
| MSI Stealth 18 HX AI A2XW | |
| 3840x2160 Ultra High + GI + DLSS Quality + FG | |
| Average NVIDIA GeForce RTX 5090 Laptop (66 - 84, n=6) | |
| MSI Stealth 18 HX AI A2XW | |
| Final Fantasy XV Benchmark | |
| 1920x1080 High Quality | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (144.4 - 215, n=19) | |
| 2560x1440 High Quality | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (123.4 - 184.3, n=21) | |
| 3840x2160 High Quality | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Average NVIDIA GeForce RTX 5090 Laptop (83.4 - 111.8, n=14) | |
| MSI Stealth 18 HX AI A2XW | |
| Dota 2 Reborn - 3840x2160 ultra (3/3) best looking | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (131.2 - 180.1, n=13) | |
| X-Plane 11.11 | |
| 1920x1080 high (fps_test=3) | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (79.9 - 133.6, n=20) | |
| 3840x2160 high (fps_test=3) | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (67 - 104.3, n=13) | |
| Strange Brigade | |
| 1920x1080 ultra AA:ultra AF:16 | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Average NVIDIA GeForce RTX 5090 Laptop (303 - 464, n=17) | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 ultra AA:ultra AF:16 | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (240 - 350, n=17) | |
| 3840x2160 ultra AA:ultra AF:16 | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Average NVIDIA GeForce RTX 5090 Laptop (151.4 - 187.2, n=13) | |
| MSI Stealth 18 HX AI A2XW | |
| Monster Hunter Wilds | |
| 1920x1080 ultra, RT: high, no upscaling | |
| Average NVIDIA GeForce RTX 5090 Laptop (66.4 - 95.3, n=11) | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 ultra, RT: high, no upscaling | |
| Average NVIDIA GeForce RTX 5090 Laptop (54 - 80.5, n=11) | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 ultra, RT: high, DLSS3 quality | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (63.9 - 92.8, n=7) | |
| 3840x2160 ultra, RT: high, no upscaling | |
| Average NVIDIA GeForce RTX 5090 Laptop (33.4 - 50.8, n=11) | |
| MSI Stealth 18 HX AI A2XW | |
| 3840x2160 ultra, RT: high, DLSS3 quality | |
| Average NVIDIA GeForce RTX 5090 Laptop (57.6 - 69.2, n=6) | |
| MSI Stealth 18 HX AI A2XW | |
| F1 24 | |
| 1920x1080 Ultra High Preset AA:T AF:16x | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| MSI Stealth 18 HX AI A2XW | |
| Average NVIDIA GeForce RTX 5090 Laptop (107.5 - 158.3, n=18) | |
| 2560x1440 Ultra High Preset AA:T AF:16x | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Average NVIDIA GeForce RTX 5090 Laptop (72.5 - 106.9, n=19) | |
| MSI Stealth 18 HX AI A2XW | |
| 3840x2160 Ultra High Preset AA:T AF:16x | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Average NVIDIA GeForce RTX 5090 Laptop (39.3 - 54.2, n=14) | |
| MSI Stealth 18 HX AI A2XW | |
| 3840x2160 Ultra High Preset + Quality DLSS AF:16x | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Average NVIDIA GeForce RTX 5090 Laptop (66 - 90.9, n=11) | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 Ultra High Preset + Quality DLSS AF:16x | |
| MSI Stealth 18 HX AI A2XW | |
| Razer Blade 18 2025 RTX 5090 Laptop | |
| Average NVIDIA GeForce RTX 5090 Laptop (105.5 - 159.3, n=13) | |
| Black Myth: Wukong | |
| 1920x1080 cinematic TSR 100 | |
| Average NVIDIA GeForce RTX 5090 Laptop (55 - 74, n=6) | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 cinematic TSR 100 | |
| Average NVIDIA GeForce RTX 5090 Laptop (42 - 50, n=6) | |
| MSI Stealth 18 HX AI A2XW | |
| 3840x2160 cinematic TSR 100 | |
| Average NVIDIA GeForce RTX 5090 Laptop (26 - 33, n=6) | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 cinematic DLSS 68 | |
| Average NVIDIA GeForce RTX 5090 Laptop (62 - 73, n=6) | |
| MSI Stealth 18 HX AI A2XW | |
| 3840x2160 cinematic DLSS 68 | |
| Average NVIDIA GeForce RTX 5090 Laptop (43 - 52, n=4) | |
| MSI Stealth 18 HX AI A2XW | |
| 3840x2160 cinematic RT: Very High DLSS 68 FG | |
| Average NVIDIA GeForce RTX 5090 Laptop (43 - 47, n=5) | |
| MSI Stealth 18 HX AI A2XW | |
| 2560x1440 cinematic RT: Very High DLSS 68 FG | |
| Average NVIDIA GeForce RTX 5090 Laptop (76 - 85, n=6) | |
| MSI Stealth 18 HX AI A2XW | |













