ASUS ROG Zephyrus G16 (2025) GU605CX / GIGABYTE AORUS MASTER 16 AM6H (BYHC5USE64SH)

ASUS ROG Zephyrus G16 (2025) GU605CX: GU605CX: the RTX 5090 Laptop GPU version; the GU605CX-QR111W and GU605CX-XS98 listed by ASUS come with 64 GB of memory and a 2 TB SSD. In the US, the GU605CX-G16.U9X5090 sold by Best Buy is listed with 32 GB. The same chassis is also sold with the RTX 5060/5070/5070 Ti/5080.

GIGABYTE AORUS MASTER 16 AM6H (BYHC5USE64SH): BYHC5USE64SH (US): Core Ultra 9 275HX, RTX 5080 Laptop GPU 16 GB, 32 GB DDR5, 1 TB SSD, Windows 11 Home, Dark Tide. The BZH (RTX 5090) and BXH (RTX 5070 Ti, 140 W) in the same chassis and the AMD-based AORUS MASTER 16 are separate configurations.

SpecificationASUS ROG Zephyrus G16 (2025) GU605CXGIGABYTE AORUS MASTER 16 AM6H (BYHC5USE64SH)
Release year20252025
ProcessorIntel Core Ultra 9 285H; 16 cores, 16 threads; 2.9 GHz base, up to 5.4 GHz; 24 MB cache

The processor’s Intel AI Boost NPU delivers up to 13 TOPS of AI processing; some Windows AI features use this unit instead of the graphics card.

ASUS		Intel Core Ultra 9 275HX; 24 cores / 24 threads, 36 MB cache, up to 5.4 GHz GIGABYTE
GraphicsNVIDIA GeForce RTX 5090 Laptop GPU, 24 GB GDDR7; ROG Boost 1647 MHz; 120 W (100 W + 20 W Dynamic Boost)

120 W is the upper power limit including Dynamic Boost: the extra 20 W is shifted to the GPU when the processor load is low and is not always available. The RTX 5070 Ti version of the same chassis is limited to 115 W, and the RTX 5060 and 5070 versions to 105 W.

ASUS		NVIDIA GeForce RTX 5080 Laptop GPU, 16 GB GDDR7; up to 175 W graphics power including Dynamic Boost; up to 1,902 MHz AI Boost clock (1,702 + 200 MHz OC)

175 W includes the share Dynamic Boost shifts to the GPU when CPU load is low; GIGABYTE notes the figure may vary by scenario. The desktop RTX 5080 is a different card.

GIGABYTE
Graphics switchingMUX Switch and NVIDIA Advanced Optimus

Advanced Optimus switches the internal display between the processor’s integrated graphics and the RTX 5090 without a restart. The MUX switch connects the display directly to the RTX 5090, removing the integrated graphics from the path in games.

ASUS		—
Display16-inch 2.5K (2560 × 1600) OLED, 16:10, 240 Hz; 100% DCI-P3; G-Sync; Pantone Validated

240 Hz shows up to 240 frames per second in games; G-Sync matches the display refresh rate to the graphics card’s frame rate to prevent tearing. Pantone Validated means the display colours are verified against Pantone reference colours. ASUS does not give brightness or response time on this page.

ASUS		16-inch 16:10 OLED, 2560 × 1600 (WQXGA), 240 Hz, 1 ms; 100% DCI-P3; 500 nits peak; 1,000,000:1 contrast; glossy surface

240 Hz shows motion more clearly in fast games and puts the RTX 5080’s high frame rates on screen; 500 nits is an HDR peak, not sustained full-screen brightness.

GIGABYTE
Display surfaceAnti-glare, low-reflection coating (AGLR)

The coating is used to reduce reflections from lamps and windows in bright rooms.

ASUS		—
Memory64 GB LPDDR5X-7467, soldered on board, dual channel; no memory slot

Memory cannot be upgraded later; the capacity chosen at purchase is permanent.

ASUS		DDR5-5600; two SO-DIMM slots, up to 64 GB

Memory is not soldered. The BYHC5USE64SH ships with 2 × 16 GB, so both slots are filled and upgrading means swapping modules.

GIGABYTE
Storage2 TB M.2 NVMe PCIe 4.0 SSD; 2 × M.2 PCIe slots in total

The second M.2 slot allows an extra SSD. ASUS gives no separate PCIe generation for the free slot.

ASUS		PCIe NVMe M.2; one PCIe Gen5 and one PCIe Gen4 x4 M.2 slot, up to 4 TB

A second SSD can be added. The Gen5 slot gives higher sequential speeds with a compatible Gen5 SSD; which slot the factory SSD uses can vary by configuration.

GIGABYTE
Ports1 × Thunderbolt 4 (40 Gbps, DisplayPort, power input); 1 × USB-C 10 Gbps (DisplayPort, power input, G-SYNC); 2 × USB-A 10 Gbps; HDMI 2.1 FRL; UHS-II SD card reader (312 MB/s); 3.5 mm audio

Both USB-C ports support an external display and charging; the 10 Gbps USB-C port also carries G-SYNC to an external display. ASUS does not state the USB-C charging power.

ASUS		—
WirelessWi-Fi 7 (802.11be), tri-band, 2×2; Bluetooth 5.4 ASUSWi-Fi 7 (802.11be, 2×2); Bluetooth 5.4 GIGABYTE
Battery and adapter90 Wh, 4-cell lithium-ion; 240 W adapter (20 V, 12 A)

ASUS’s Middle East page also lists a 100 W USB-C adapter in the box and notes that the adapter can vary by region and model.

ASUS		99 Wh lithium-ion; 330 W AC adapter

99 Wh is close to the upper limit for laptop batteries allowed on planes. Full GPU power needs the 330 W adapter; USB-C charging via Power Delivery 3.0 is possible but performance is reduced.

GIGABYTE
Audio2 tweeters and 4 speakers with dual force-cancelling woofers; Smart Amp; Dolby Atmos; 3-microphone array, AI noise cancelling

The force-cancelling woofer layout uses opposing drivers to reduce bass vibration passing into the chassis.

ASUS		—
Camera and keyboard1080p FHD IR camera (Windows Hello); single-zone RGB backlit keyboard; Slash Lighting on the lid

The IR camera enables face sign-in with Windows Hello.

ASUS		—
Dimensions and weight35.4 × 24.6 × 1.49–1.74 cm; 1.95 kg

The RTX 5060 and 5070 versions are 1.64 cm and 1.85 kg; the RTX 5070 Ti, 5080 and 5090 versions are 1.74 cm and 1.95 kg.

ASUS		—
Operating systemWindows 11 Home or Windows 11 Pro (depending on SKU) ASUS—
Hybrid graphics—NVIDIA Advanced Optimus and G-SYNC

Advanced Optimus switches the display between integrated graphics and the RTX GPU without a reboot: a direct GPU path in games, battery savings in light work.

GIGABYTE
Display certifications—VESA DisplayHDR True Black 500, VESA ClearMR 10000, Dolby Vision, Pantone Validated, TÜV Rheinland Low Blue Light

True Black 500 certifies HDR peak brightness of 500 nits together with OLED’s deep blacks; ClearMR 10000 is a motion-clarity tier.

GIGABYTE
Left ports—DC-in; RJ-45 1 Gbit LAN; HDMI 2.1; USB-A (USB 3.2 Gen 2); USB-C Thunderbolt 5 (USB4, DisplayPort 2.1, Power Delivery 3.0)

The Thunderbolt 5 port suits high-bandwidth external SSDs, docks and DisplayPort 2.1 monitors; HDMI 2.1 supports high-refresh TVs and monitors.

GIGABYTE
Right ports—USB-A (USB 3.2 Gen 2); USB-C Thunderbolt 4 (USB4, DisplayPort 1.4, Power Delivery 3.0); microSD card reader (UHS-II); 3.5 mm headphone/mic combo

The two USB-C ports differ in speed and display version; for a high-resolution external display the left Thunderbolt 5 port is the better choice.

GIGABYTE
Audio and camera—Four 2 W speakers, Dolby Atmos, Smart Amp; 1080p IR camera, Windows Hello face login, array microphone GIGABYTE
Keyboard—3-zone RGB backlight, up to 1.7 mm key travel, N-key rollover

N-key rollover means every simultaneously pressed key is registered, avoiding missed inputs in games. Lighting is set in three zones, not per key.

GIGABYTE
Size and weight—357 × 254 × 23–29.9 mm; about 2.5 kg GIGABYTE
Operating system and security—Windows 11 Home or Windows 11 Pro (by region); firmware TPM (Intel PTT) GIGABYTE
Colour—Dark Tide GIGABYTE