ASUS ROG Strix SCAR 18 RTX 5090 Gaming Benchmarks: 4K Gaming Tested
Updated 16 October 2026 | UAE Tech Dubai, Berjaya Electronics
The ASUS ROG Strix SCAR 18 with an RTX 5090 Laptop GPU is one of the fastest gaming laptops you can buy in Dubai, but does it deliver smooth 4K gaming? Published tests show a nuanced answer: it can push demanding games at 4K, yet native 4K Ultra performance ranges widely by title. Expect around 80 FPS in some games, about 50 FPS in several demanding releases, and lower rates in heavy ray-traced scenes. DLSS can lift performance, but generated frames should not be confused with the laptop rendering every frame itself.
Important model clarification: The UAE Tech Dubai listing covered here is the 2025 SCAR 18 G835LX-SA114, with a Core Ultra 9 275HX and an 18-inch 2560 × 1600 Mini-LED display. The 4K results below were measured by independent reviewers using 4K output; the built-in panel on this listing is not a 4K screen. ASUS has also announced a 2026 SCAR 18 with a 4K 240Hz Mini-LED panel and a newer processor. Do not mix results or specifications from those two generations.
Benchmark disclosure: UAE Tech Dubai has not independently tested this SKU. The numbers in this guide are attributed to Notebookcheck and Ultrabookreview’s published tests of the 2025 G835LX platform. Results vary with game patches, drivers, resolution, graphics settings, power profile, cooling and whether DLSS or frame generation is enabled.
ASUS ROG Strix SCAR 18 RTX 5090: UAE configuration at a glance
| Component | UAE Tech Dubai listing |
|---|---|
| Model | ROG Strix SCAR 18 G835LX-SA114 (2025) |
| Processor | Intel Core Ultra 9 275HX, 24 cores |
| Graphics | NVIDIA GeForce RTX 5090 Laptop GPU, 24 GB |
| Memory and storage | 64 GB RAM and 2 TB SSD |
| Built-in display | 18-inch 2.5K / 2560 × 1600 Mini-LED, up to 240Hz on the 2025 platform |
| Operating system on this SKU | DOS listed; Windows is not included in this configuration |
| Price and stock checked | AED 24,999; shown in stock when this article was updated |
ASUS specifies up to a 175W total graphics power for the 2025 RTX 5090 SCAR 18 and pairs it with a vapor-chamber cooling design. Those power and cooling limits matter: a laptop RTX 5090 is a mobile GPU operating within a notebook’s thermal and power envelope, not the desktop RTX 5090. The 2025 18-inch panel is designed for high-refresh 2560 × 1600 gaming, while a separate 4K monitor is needed to play at 3840 × 2160. See the official ASUS 2025 SCAR 18 specifications and the UAE Tech Dubai SCAR 18 RTX 5090 listing.
4K gaming benchmarks: what independent testing found
Notebookcheck published a 4K game-results table for its 2025 SCAR 18 G835LX review system. These results show why there is no single “4K FPS” number for a laptop: game engine, visual preset and upscaling can matter as much as the GPU. The figures below are averages from that review, not a promise that every retail unit will reproduce the same result.
| Game | 4K setting in the published test | Average |
|---|---|---|
| Baldur’s Gate 3 | Ultra, native rendering | 82.8 FPS |
| Baldur’s Gate 3 | Ultra, DLSS Quality | 125.4 FPS |
| Cyberpunk 2077 | Ultra, FSR off | 52.1 FPS |
| Alan Wake 2 | High | 46 FPS |
| F1 24 | Ultra High | 52 FPS |
| Call of Duty: Black Ops 6 | Extreme | 79 FPS |
| Indiana Jones and the Great Circle | Very Ultra | 65 FPS |
| Monster Hunter Wilds | Ultra, high ray tracing, no upscaling | 46.3 FPS |
| Assassin’s Creed Shadows | Ultra High | 36 FPS |
In this set, the SCAR 18 clears 60 FPS in several 4K games, but not every demanding title at its most expensive settings. Baldur’s Gate 3 reached 82.8 FPS natively and 125.4 FPS with DLSS Quality, while Alan Wake 2, Cyberpunk 2077 and Assassin’s Creed Shadows landed below 60 FPS at the listed settings. For a consistent high-refresh 4K experience, gamers will need to adjust settings or use upscaling in newer, heavier games. Notebookcheck’s full SCAR 18 G835LX review and benchmark tables include additional resolutions and test details.
4K with ray tracing and DLSS: read the FPS carefully
Ultrabookreview tested the RTX 5090 SCAR 18 using an external 4K display in Turbo mode with the discrete GPU active. In Cyberpunk 2077 at 4K with Ultra settings and ray tracing off, its result was 48 FPS. With RT Overdrive path tracing, DLSS 4 Balanced, Ray Reconstruction and 2× frame generation enabled, the published result was 70 FPS with a 32 FPS 1% low. The same test configuration reached 130 FPS with 4× multi-frame generation, but its 1% low was 26 FPS.
That 130 FPS figure is a generated output rate, not 130 fully rendered frames per second. Multi-frame generation inserts additional frames between rendered frames, which can make motion look smoother, but it does not give the same responsiveness as the same native frame rate. For competitive games or fast mouse movement, pay attention to rendered performance, frame pacing and latency—not only the largest FPS number. Ultrabookreview’s 4K external-monitor test results list the exact modes, presets and 1% lows.
For a simpler no-upscaling comparison, Notebookcheck recorded 52.1 FPS in Cyberpunk 2077 at 4K Ultra with FSR off. These results are not contradictory: the settings and test procedures differ. Always compare performance figures only when resolution, graphics preset, ray tracing, upscaling and power mode match.
4K monitor or built-in 2.5K screen?
The 2025 G835LX listing’s 2560 × 1600 screen is a strong fit for high-refresh gaming. It asks the RTX 5090 Laptop GPU to render fewer pixels than 4K, so it is the better target when you want smooth motion at 240Hz in esports and visually rich games. A 4K external monitor gives you sharper detail and a larger desktop workspace, but it raises the GPU’s workload by about 2.4 times compared with 2560 × 1600. That makes quality upscaling more useful in demanding titles.
Search results now also include the 2026 SCAR 18 model. ASUS describes that version as having an 18-inch 4K 240Hz Mini-LED panel and an Intel Core Ultra 9 290HX Plus. The UAE Tech Dubai product checked for this article is the 2025 275HX / 2.5K model; the store catalog search did not return a 2026 SCAR 18 listing at the time of review. Check the model code on the product page before buying if a native 4K laptop display is essential. ASUS announcement for the 2026 SCAR 18.
Cooling, noise and battery life
A powerful GPU needs substantial cooling. Notebookcheck measured up to 53.7 dB(A) under heavy load in its review and reported roughly 5 hours 32 minutes of Wi-Fi browsing in its battery test, while gaming on battery ended after about 44 minutes. These are test results from that review unit and methodology, but they illustrate the SCAR 18’s role: it is a plugged-in desktop replacement first and a laptop for occasional relocation second. Bring a headset for demanding sessions and use the original power adapter for maximum performance.
Is the SCAR 18 RTX 5090 worth AED 24,999?
It can be worth the investment if you want a high-end gaming desktop replacement with 64 GB RAM, 2 TB storage, a premium 18-inch Mini-LED screen and enough GPU power to play many games at 4K. Its strongest case is not that every new game runs at 4K Ultra above 100 FPS; the published results show that does not happen consistently. The appeal is having room to choose between high-detail 4K output, DLSS-assisted ray tracing, or very high frame rates at the laptop’s native 2.5K resolution.
At the time checked, the ASUS ROG Strix SCAR 18 G835LX-SA114 RTX 5090 laptop was listed at AED 24,999 and in stock. This specific listing states DOS, so factor in the operating system you need. Confirm the final SKU, current price, stock, included accessories and UAE warranty details with the store before ordering; these can change.
If you are weighing GPU tiers, read our ROG Strix SCAR 18 RTX 5090 vs RTX 5080 comparison. You can also browse gaming laptops in Dubai to compare other systems.
Verdict
The ASUS ROG Strix SCAR 18 RTX 5090 is a powerful 4K-capable gaming laptop, but buyers should set expectations around the exact 2025 configuration sold in the UAE. Independent testing reports 4K results from 36 to 82.8 FPS across several demanding games at native settings, with much higher figures possible when DLSS and frame generation are enabled. For high-refresh gaming, its built-in 2560 × 1600 Mini-LED panel is often the smarter target. If you want a laptop screen that is itself 4K, look specifically for the newer 2026 version rather than assuming every RTX 5090 SCAR 18 has the same display.
Frequently asked questions
Can the 2025 ASUS ROG Strix SCAR 18 RTX 5090 play games in 4K?
Yes. It can output to a 4K external monitor, and published tests show playable results in many games. Performance varies by title and settings; heavy 4K ray tracing may need DLSS or reduced settings.
Is the UAE Tech Dubai SCAR 18 screen 4K?
No. The listed 2025 G835LX-SA114 has an 18-inch 2560 × 1600 2.5K display. ASUS’s 2026 SCAR 18 is a different generation with a 4K 240Hz Mini-LED display.
Were these benchmarks run by UAE Tech Dubai?
No. The benchmark results are attributed to the independent Notebookcheck and Ultrabookreview test articles linked above. UAE Tech Dubai has not represented them as in-house testing.
Does the listed RTX 5090 configuration include Windows?
The current product listing states DOS. Confirm the operating system and any licensing requirement before placing an order.
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