ASUS ROG Strix SCAR 16 (2025) G635LX / ASUS ROG Strix SCAR 18 (2024) G834JZR

ASUS ROG Strix SCAR 16 (2025) G635LX: G635LX · RTX 5090 Laptop GPU · 32 GB / 1 TB or 2×16 GB / 2 TB

ASUS ROG Strix SCAR 18 (2024) G834JZR: G834JZR-BS91-CB: Intel Core i9-14900HX, GeForce RTX 4080 Laptop GPU 12 GB, 32 GB DDR5 (2 × 16 GB), 1 TB SSD, 18-inch 2560 × 1600 Mini LED 240 Hz display. The RTX 4090 G834JYR, the 2025 SCAR 18 and the 16-inch SCAR 16 are separate models.

SpecificationASUS ROG Strix SCAR 16 (2025) G635LXASUS ROG Strix SCAR 18 (2024) G834JZR
Release year20252024
Model and configurationG635LX · Intel Core Ultra 9 275HX · RTX 5090 Laptop GPU

ASUS's US spec page shows two G635LX configurations: Windows 11 Home, 1×32 GB, 1 TB, and Windows 11 Pro, 2×16 GB, 2 TB. The G635LW with the RTX 5080 Laptop GPU is a separate model.

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Operating systemWindows 11 Home or Windows 11 Pro (depending on configuration) ASUS—
ProcessorIntel Core Ultra 9 275HX; 24 cores (8 P + 16 E), 24 threads, up to 5.4 GHz, 36 MB cache

Intel rates the chip at 55 W base and 160 W maximum turbo power. In this laptop ASUS allocates 55 W to the CPU in Turbo mode and an extra 25 W in Manual mode; its graphic shows up to 80 W for the CPU.

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Intel Core i9-14900HX; 24 cores, 32 threads, 2.2 GHz, up to 5.8 GHz, 36 MB cache

The HX series is Intel’s high-power family that brings near-desktop core counts to laptops.

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NPUIntel AI Boost, up to 13 TOPS

TOPS is trillions of operations per second the neural accelerator can perform (Int8). 13 TOPS is below the 40 TOPS Microsoft asks for Copilot+ PCs.

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GraphicsNVIDIA GeForce RTX 5090 Laptop GPU; ROG Boost 1647 MHz at 175 W (150 W + 25 W Dynamic Boost); 24 GB GDDR7

175 W is the ceiling including 25 W Dynamic Boost shifted to the GPU when the CPU is lightly loaded; it is not a constant draw in every game. The RTX 5090 Laptop GPU is not the desktop RTX 5090. Graphics memory is soldered.

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NVIDIA GeForce RTX 4080 Laptop GPU, 12 GB GDDR6; ROG Boost 2330 MHz at 175 W (150 W + 25 W Dynamic Boost)

ASUS adds a 50 MHz overclock to the 2280 MHz boost clock. Dynamic Boost shifts 25 W from the CPU to the GPU depending on load. The GPU is soldered and cannot be replaced.

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GPU switchingNVIDIA Advanced Optimus and Dynamic Boost (Max-Q technologies)

Advanced Optimus can route the panel straight to the discrete GPU when a game starts without a reboot, and fall back to integrated graphics on the desktop to save battery.

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Display16-inch 2560×1600 (16:10) ROG Nebula HDR Mini LED; 240 Hz, 3 ms, 100% DCI-P3, anti-glare

ASUS quotes more than 2,000 local dimming zones and 1,200 nits peak; the peak applies to small HDR highlights, not sustained full-screen brightness. The panel is Pantone Validated.

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18-inch 2.5K (2560 × 1600, WQXGA) 16:10 Mini LED; 240 Hz, 3 ms, DCI-P3 100%, G-Sync, anti-glare; ROG Nebula HDR Display, Pantone Validated

Mini LED backlighting dims thousands of small LEDs in zones for higher brightness and contrast in HDR; slight halos may be visible around bright objects. ASUS states the display works with a MUX switch and NVIDIA Advanced Optimus.

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Variable refresh and HDRNVIDIA G-SYNC; Dolby Vision

G-SYNC matches the panel refresh to the GPU frame rate to reduce tearing. The spec sheet also lists G-SYNC for external displays connected over Thunderbolt 5.

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Panel coatingDual ACR (anti-reflection) layer

ASUS says the layer reduces reflections and improves contrast by 4.5x; this is a manufacturer claim.

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MemoryDDR5-5600 SO-DIMM, two slots, dual channel; 1×32 GB or 2×16 GB; up to 64 GB

SO-DIMM modules are not soldered and can be swapped under the bottom cover. The single 32 GB module configuration runs single-channel until the second slot is filled. The product page mentions DDR5-6400 elsewhere; the spec sheet value of 5600 is used here.

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32 GB DDR5-5600 SO-DIMM (2 × 16 GB); 2 slots, up to 64 GB, dual channel

Both slots come filled; upgrading means replacing the modules. ASUS notes memory speed can vary by CPU.

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Storage1 TB or 2 TB PCIe 4.0 NVMe M.2 SSD; two M.2 slots

SSDs are held by tool-less Q-Latch clips. The ASUS product page calls the slots “PCIe Gen 5 ready”, but the spec sheet says PCIe 4.0 and one independent test reported no 5.0 support. Because of nearby components, only single-sided SSDs are supported.

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1 TB PCIe 4.0 NVMe M.2 SSD; 2 × M.2 PCIe slots

The second M.2 slot allows an additional SSD.

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Ports2× Thunderbolt 5 (120 Gbit/s; DisplayPort, power delivery, G-SYNC); 3× USB 3.2 Gen 2 Type-A (10 Gbit/s); HDMI; 2.5G LAN; 3.5 mm audio

120 Gbit/s is the Thunderbolt 5 one-way Bandwidth Boost rate; the normal bidirectional bandwidth is 80 Gbit/s. There is no card reader. The HDMI version is not stated on the spec sheet.

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1 × Thunderbolt 4 (DisplayPort, G-SYNC, 40 Gbps), 1 × USB 3.2 Gen 2 Type-C (DisplayPort, power delivery, G-SYNC, 10 Gbps), 2 × USB 3.2 Gen 2 Type-A (10 Gbps), 1 × HDMI 2.1 FRL, 1 × 2.5G LAN, 1 × 3.5 mm audio

No card reader is listed. ASUS notes the LAN port does not support Power over Ethernet (PoE).

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WirelessWi-Fi 7 (802.11be) tri-band 2×2; Bluetooth 5.4 ASUSWi‑Fi 6E (802.11ax, tri-band) 2 × 2; Bluetooth 5.2

Wi‑Fi 6E can use the less crowded 6 GHz band with compatible routers.

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CoolingEnd-to-end vapor chamber, sandwiched heatsink, three fans; liquid metal on CPU and GPU

The third auxiliary fan moves heat from the GPU and VRAM to the heatsinks. The up-to-15 °C drop ASUS quotes for liquid metal comes from its internal test against the previous-generation compound.

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Power modesTurbo: CPU 55 W + GPU 175 W (230 W total); Manual: CPU 80 W + GPU 175 W (255 W total)

These are the manufacturer ceilings under simultaneous full load; in Silent mode the GPU runs at a far lower limit.

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Service accessTool-less bottom cover: access to two SO-DIMM slots, two M.2 slots and fans

ASUS says the mainboard frame comes off with a few screws. An independent test reported that the Wi-Fi module is soldered.

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KeyboardPer-key RGB chiclet keyboard, ROG Overstroke; NumberPad on the touchpad; Copilot key

Overstroke registers a press earlier in the key travel. ASUS rates the switches for 20 million presses and lists n-key rollover.

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LightingAniMe Vision lid display (810 LEDs), wraparound light bar, AURA Sync logo

All lighting can be switched off.

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Camera and audio1080p FHD IR camera (Windows Hello); four speakers, Smart Amp, Dolby Atmos; array microphone

The camera has no mechanical shutter.

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Battery and adapter90 Wh, 4-cell lithium-ion; 380 W adapter (20 V/19 A)

The Thunderbolt 5 ports accept power delivery; with a lower-power USB-C charger the battery can still drain under gaming load.

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Size and weight35.4 × 26.8 × 2.28–3.08 cm; 2.80 kg

Adapter weight not included.

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39.9 × 29.4 × 2.31–3.08 cm; 3.10 kg ASUS
SecurityFirmware TPM, BIOS password ASUS—
Battery and power—90 Wh, 4-cell lithium-ion; 330 W adapter (ø6.0 mm, 20 V 16.5 A)

ASUS notes that whether the adapter is included varies by country and model. The adapter must be connected for full GPU power.

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Keyboard and lighting—Per-key RGB backlit chiclet keyboard; Aura Sync rear glow, logo and light bar ASUS
Audio and camera—4 speakers with Smart Amp, Dolby Atmos, Hi-Res certification for headphones, AI noise cancellation, array microphone; 720p HD camera

Windows Hello face recognition is not listed for the camera.

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Operating system and security—Windows 11 Home; firmware TPM, BIOS password ASUS