Snapdragon X12 LTE Modem


The Qualcomm® Snapdragon™ X12 LTE Modem is a great fit for those who depend on today’s fastest connections. By supporting several next-generation features such as LTE Advanced Carrier Aggregation, LTE in unlicensed spectrum (LTE-U), and LTE + Wi-Fi Link Aggregation, the Snapdragon X12 LTE Modem represents the ultimate in LTE connectivity.

Snapdragon X12 LTE Modem Specs

Cellular Modem


  • Snapdragon X12 LTE Modem
  • Snapdragon 821 processor
  • Snapdragon 820 processor
  • Snapdragon 660 Mobile Platform
  • Snapdragon 630 Mobile Platform

LTE Category

  • LTE Category 13 (uplink)
  • LTE Category 12 (downlink)

Downlink Features

  • 3x20 MHz carrier aggregation
  • Up to 256-QAM
  • Up to 4x4 MIMO on one carrier

Uplink Features

  • Qualcomm® Snapdragon™ Upload+
  • 2x20 MHz carrier aggregation
  • Up to 2x 75Mbps LTE streams
  • Up to 64-QAM
  • Uplink data compression

Peak Download Speed

  • 600 Mbps

Peak Upload Speed

  • 150 Mbps

Supported Cellular Technologies

  • LTE-U
  • LWA
  • LTE Broadcast
  • CDMA 1x
  • EV-DO

Multi SIM

  • LTE Dual SIM Dual Standby (DSDS)

Next-generation Calling Services

  • VoLTE with SRVCC to 3G and 2G
  • Voice over Wi-Fi (VoWiFi) with LTE call continuity
  • Native HD video calling
  • HD Voice over 3G and VoLTE
  • CSFB to 3G and 2G


Part Numbers

  • MDM9645
  • MDM9640
  • MDM9340
  • MDM9245
  • MDM9240
  1. Not supported in Snapdragon 660/630
  2. Not supported in Snapdragon 660/630