Apple MacBook Air 13-inch (M4) / ASUS ROG Zephyrus G16 (2025) GU605CX

Apple MacBook Air 13-inch (M4): 13.6-inch · M4

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.

SpecificationApple MacBook Air 13-inch (M4)ASUS ROG Zephyrus G16 (2025) GU605CX
Release year20252025
Display13.6-inch Liquid Retina IPS; 2560 × 1664; 224 ppi; 500 nits; P3; True Tone Apple16-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
ProcessorApple M4; 10-core CPU (4 performance, 6 efficiency); 16-core Neural Engine AppleIntel 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
Graphics8-core GPU; 10-core GPU option; hardware ray tracing

The 10-core GPU is a configure-to-order option; the base model has 8 cores.

Apple		NVIDIA 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
Memory16 GB; 24 / 32 GB options

Unified memory; cannot be upgraded after purchase.

Apple		64 GB LPDDR5X-7467, soldered on board, dual channel; no memory slot

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

ASUS
Storage256 GB; 512 GB / 1 / 2 TB options Apple2 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
Memory bandwidth120 GB/s Apple—
WirelessWi-Fi 6E; Bluetooth 5.3 AppleWi-Fi 7 (802.11be), tri-band, 2×2; Bluetooth 5.4 ASUS
Connections2 × Thunderbolt 4 / USB 4 (40 Gbit/s; charging and DisplayPort); MagSafe 3; 3.5 mm jack with high-impedance headphone support Apple—
External displaysUp to 2 at 6K 60 Hz; native DisplayPort 1.4 output

Two external displays work while the built-in display runs at full resolution.

Apple		—
Charging30 W adapter with the 8-core GPU model; 35 W dual USB-C with the 10-core model; 70 W option

Fast charging is supported with the 70 W adapter.

Apple		—
Battery53.8 Wh lithium-polymer; up to 18 hours video streaming; up to 15 hours wireless web

Apple test figures; vary with use and configuration.

Apple		—
Camera12 MP Center Stage; Desk View; 1080p video Apple—
AudioFour speakers; Spatial Audio with Dolby Atmos; three-mic array with Voice Isolation Apple2 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
KeyboardBacklit Magic Keyboard; Touch ID; Force Touch trackpad Apple—
Size / weight30.41 × 21.5 × 1.13 cm; 1.24 kg

Weight can vary by configuration.

Apple		—
ColoursSky Blue, Silver, Starlight, Midnight Apple—
Operating temperature10–35 °C Apple—
Graphics switching—MUX 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.

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Display surface—Anti-glare, low-reflection coating (AGLR)

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

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Ports—1 × 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.

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Battery and adapter—90 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.

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Camera and keyboard—1080p 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.

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Dimensions and weight—35.4 × 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 system—Windows 11 Home or Windows 11 Pro (depending on SKU) ASUS