How do the Jetson TX2, Jetson TX2 NX and Jetson TX2i differ in form factor, power envelope and memory?

Question

Rapidflare · Accepted Answer

The three modules use the same Pascal GPU with 256 CUDA cores and a 6-core CPU. Where they differ is the connector and board size, the power range, and memory size and bandwidth. The TX2 and TX2i use the same 400-pin board-to-board connector. The TX2 NX is a smaller SO-DIMM module, and the TX2i draws more power.

**Jetson TX2 family comparison**

| | Jetson TX2 | Jetson TX2 NX | Jetson TX2i |
|---|---|---|---|
| Form factor | 400-pin B2B (50x87mm) | 260-pin SO-DIMM (69.6x45mm) | 400-pin B2B (50x87mm) |
| Power envelope | 7.5–15 W | 7.5–15 W | 10–20 W |
| Memory | 8 GB LPDDR4 | 4 GB LPDDR4 | 8 GB LPDDR4 (ECC) |
| Memory bandwidth | 59.7 GB/s | 51.2 GB/s | 51.2 GB/s |

**Form factor**
- The TX2 and TX2i have the same connector and board size, 400-pin B2B (50x87mm).
- The TX2 NX is a smaller module that is pin-compatible with Jetson Nano and Xavier NX.

**Power envelope**
- The TX2 and TX2 NX both run at 7.5–15 W.
- The TX2i runs at 10–20 W. It's the industrial/rugged version, built for wider temperature ranges and more vibration.

**Memory**
- **TX2:** 8 GB LPDDR4 at 59.7 GB/s.
- **TX2 NX:** 4 GB LPDDR4 at 51.2 GB/s.
- **TX2i:** 8 GB LPDDR4 with ECC at 51.2 GB/s.
- There's also a **Jetson TX2 4GB**, a lower-cost version. It has the standard TX2's 400-pin B2B board but 4 GB of LPDDR4 at 51.2 GB/s.

The Jetson TX2 is marked end-of-life. The catalog doesn't list a lifecycle status for the TX2 NX or TX2i.

Jetson TX2, TX2 NX and TX2i: form factor, power envelope and memory

Sources

	Jetson TX2	Jetson TX2 NX	Jetson TX2i
Form factor	400-pin B2B (50x87mm)	260-pin SO-DIMM (69.6x45mm)	400-pin B2B (50x87mm)
Power envelope	7.5–15 W	7.5–15 W	10–20 W
Memory	8 GB LPDDR4	4 GB LPDDR4	8 GB LPDDR4 (ECC)
Memory bandwidth	59.7 GB/s	51.2 GB/s	51.2 GB/s