ASUS PRIME B840M-R vs GIGABYTE A520I AC (Rev. 1.4)

Key differences

The ASUS PRIME B840M-R has 2,300 MHz more supported memory clock speed (max) than the GIGABYTE A520I AC (Rev. 1.4) (7600 MHz vs 5300 MHz). The ASUS PRIME B840M-R has 64 GB more maximum internal memory than the GIGABYTE A520I AC (Rev. 1.4) (128 GB vs 64 GB). The ASUS PRIME B840M-R has 1 more storage drives supported than the GIGABYTE A520I AC (Rev. 1.4) (6 vs 5). Only the GIGABYTE A520I AC (Rev. 1.4) has Wi-Fi. Processor socket: Socket AM5 on the ASUS PRIME B840M-R, Socket AM4 on the GIGABYTE A520I AC (Rev. 1.4).

• Processor socket
  • PRIME B840M-R:Socket AM5
  • A520I AC (Rev. 1.4):Socket AM4
• Supported memory types
  • PRIME B840M-R:DDR5-SDRAM
  • A520I AC (Rev. 1.4):DDR4-SDRAM
• ECC сompatibility
  • PRIME B840M-R:Non-ECC
  • A520I AC (Rev. 1.4):ECC & Non-ECC
• Supported memory clock speed (max)
  • PRIME B840M-R:7600 MHz
  • A520I AC (Rev. 1.4):5300 MHz
• Maximum internal memory
  • PRIME B840M-R:128 GB
  • A520I AC (Rev. 1.4):64 GB
• Supported storage drive interfaces
  • PRIME B840M-R:M.2, SATA III
  • A520I AC (Rev. 1.4):PCI Express 3.0, SATA III
• Number of storage drives supported
  • PRIME B840M-R:6
  • A520I AC (Rev. 1.4):5
• RAID levels
  • PRIME B840M-R:0, 1, 5, 10
  • A520I AC (Rev. 1.4):0, 1, 10