GIGABYTE A520M K V2 (Rev. 1.1) vs GIGABYTE B840M D2H (Rev. 1.1)

Key differences

The GIGABYTE B840M D2H (Rev. 1.1) has 2,500 MHz more supported memory clock speed (max) than the GIGABYTE A520M K V2 (Rev. 1.1) (7600 MHz vs 5100 MHz). The GIGABYTE B840M D2H (Rev. 1.1) has 64 GB more maximum internal memory than the GIGABYTE A520M K V2 (Rev. 1.1) (128 GB vs 64 GB). The GIGABYTE B840M D2H (Rev. 1.1) has 32 GB more maximum internal memory per slot than the GIGABYTE A520M K V2 (Rev. 1.1) (64 GB vs 32 GB). Processor socket: Socket AM4 on the GIGABYTE A520M K V2 (Rev. 1.1), Socket AM5 on the GIGABYTE B840M D2H (Rev. 1.1). Supported processor sockets: Socket AM4 on the GIGABYTE A520M K V2 (Rev. 1.1), Socket AM5 on the GIGABYTE B840M D2H (Rev. 1.1).

• Processor socket
  • A520M K V2 (Rev. 1.1):Socket AM4
  • B840M D2H (Rev. 1.1):Socket AM5
• Supported processor sockets
  • A520M K V2 (Rev. 1.1):Socket AM4
  • B840M D2H (Rev. 1.1):Socket AM5
• Supported memory types
  • A520M K V2 (Rev. 1.1):DDR4-SDRAM
  • B840M D2H (Rev. 1.1):DDR5-SDRAM
• ECC сompatibility
  • A520M K V2 (Rev. 1.1):ECC & Non-ECC
  • B840M D2H (Rev. 1.1):Non-ECC
• Supported memory clock speed (max)
  • A520M K V2 (Rev. 1.1):5100 MHz
  • B840M D2H (Rev. 1.1):7600 MHz
• Maximum internal memory
  • A520M K V2 (Rev. 1.1):64 GB
  • B840M D2H (Rev. 1.1):128 GB
• Maximum internal memory per slot
  • A520M K V2 (Rev. 1.1):32 GB
  • B840M D2H (Rev. 1.1):64 GB
• Supported storage drive interfaces
  • A520M K V2 (Rev. 1.1):PCI Express 3.0, SATA III
  • B840M D2H (Rev. 1.1):PCI Express 4.0, SATA III