Portable eGPU Runs Entirely on Batteries : RDNA3 Power on the Go

See how an 8GB VRAM eGPU runs 1080p with higher presets and FSR on battery, so you can game portably without outlets. 3.5 ...
Ars Technica

T490 + eGPU = HOT TB3 cable and eGPU shutdown

My son has a Lenovo Thinkpad T490 with a discrete Nvidia GPU plus an eGPU box and a Radeon RX570 connected via TB3. The T490 has a USB-C connector (USB 3.1 Gen 1) and a Thunderbolt 3 connector (USB-C) ...