The ROG phone uses an overclocked, binned Qualcomm Snapdragon 845 chip running at 2.96GHz with new power management modes and the first vapour-chamber cooling system to be used in a phone. A 4000mAh battery can be charged quickly by a new 20W charger that uses a custom version of the USB-C 3.1 protocol. The phone also has two other USB-C ports that can also be used for charging and uses a high performance 802.11ad WiGig wireless link.
The Snapdrgon 845 has eight Kryo CPU cores and Adreno 630 graphics, and Asus developed a new clock mode to avoid the small delays that come from minimising clocks on certain cores to extend the battery life. Instead the X Mode raises the minimum clock speed and confines tasks to the chip’s four fastest cores to ensure maximum performance. This can be set to run automatically with games or other apps.
Both of the standard Type-C ports work with standard 15W chargers but the Asus HyperCharge adapter integrates the charging controller that is usually in the phone, which increases the power delivery up to 20W and lowers charging temperatures for the handset. This allows the phone to charge the 4000mAh battery to 60% capacity in only 33 minutes and get to 85% in just over an hour.
An AeroActive Cooler with a built-in fan also plugs into a multi-purpose USB-C port and includes its own connectors for both charger and headphones to allow the phone to be used in landscape mode for gaming.
The phone links to big 4K screens with a low latency WiGig-certified 802.11ad 60GHz WiFi chip from Qualcomm with both 2×2 MIMO and WiFi Direct. The side-mounted port also supports Gigabit Ethernet over Type-C, plus HDMI and USB. A TwinView Dock adds enhanced cooling and an extra 6000mAh battery for the extra screen connection.