Compute Module 4S has more RAM (8 GB vs 4 GB); QUARTZ64 Model-A 4GB Single Board Computer has a dedicated GPU.
| QUARTZ64 Model-A 4GB Single Board Computer | Compute Module 4S | |
|---|---|---|
| Price | $59.99 | — |
| CPU | Arm Cortex A55 | Broadcom BCM 2711 |
| RAM | 4 GB LPDDR4 | 8 GB LPDDR4 |
| Storage | 128 GB | 32 GB eMMC |
| Graphics | Arm Mali-G52 | — |
| Display | eDP · e-ink · MIPI-DSI 4 lanes · 4Kp60 10 bit Digital Video port | — |
| Operating system | — | — |
| Ethernet | 1 GbE | — |
| Ports | 1×USB-C · RJ45 | HDMI |
