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Rectangular extended ATX motherboard with silver heatsinks and black PCB

GIGABYTE

GIGABYTE X870 AORUS INFINITY AMD motherboard

SKU CH-A04G-HB7S1 MPN X870 AORUS INFINITY

An AM5 board with AMD X870 chipset, dual-channel DDR5 up to 11400 MT/s, 128 GB maximum, PCIe 5.0 graphics slot, Wi-Fi 802.11 be and BLUETOOTH 5.4

  • CPU Socket TypeAM5
  • CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD X870
  • Number of Memory Slots2x288pin (DDR5)
  • Memory StandardUp to DDR5 11400 (OC)
  • Maximum Memory Supported128GB
  • Supports Ryzen 7000, 8000 and 9000 series CPUs on AM5 socket
  • Dual-channel DDR5 memory up to 11400 MT/s with EXPO and XMP 3.0 profiles
  • PCIe 5.0 x16 graphics slot and PCIe 5.0 M.2 storage from CPU lanes
  • 5 Gbps wired LAN plus Wi-Fi 802.11 be and BLUETOOTH 5.4 connectivity
  • Realtek ALC1220 audio delivers 7.1 channel surround sound

AM5 motherboard for Ryzen 7000, 8000 and 9000

The GIGABYTE X870 AORUS INFINITY is an Extended ATX board built on the AMD X870 chipset for AM5 processors. It supports Ryzen 7000, 8000 and 9000 series CPUs and provides two DDR5 slots with a maximum capacity of 128 GB. Dual-channel memory can reach DDR5 11400 when overclocked using AMD EXPO or Intel XMP 3.0 profiles. The board targets enthusiasts who need high memory speed and extensive storage options.

PCIe 5.0 graphics and storage with CPU-dependent

The primary PCI Express x16 slot runs at PCIe 5.0 x16 with Ryzen 9000 and 7000 processors, but drops to PCIe 4.0 x8 or x4 with Ryzen 8000 series CPUs. A second x16-sized slot shares bandwidth; when populated the first slot operates at up to x8. One M.2 connector wired to the CPU supports PCIe 5.0 x4 SSDs on Ryzen 9000 and 7000, while Ryzen 8000 series limit it to PCIe 4.0. Four SATA 6 Gb/s ports and NVMe RAID 0, 1, 5 and 10 complete the storage picture, though RAID 5 requires a Ryzen 9000 CPU.

Straightforward installation

The 288-pin DDR5 slots and AM5 socket follow standard mounting procedures, and the I/O shield is pre-installed. Builders must remember that the second x16 slot shares lanes with the first, so a single graphics card should always go in the top slot. Populating the M.2 connector or the second x16 slot reduces primary-slot bandwidth, which can surprise users expecting full x16 throughput. Wireless LAN uses Wi-Fi 802.11 be and BLUETOOTH 5.4, while audio runs through a Realtek ALC1220 codec delivering 7.1 channels.

Highlights

  • Supports Ryzen 7000, 8000 and 9000 series CPUs on AM5 socket
  • Dual-channel DDR5 memory up to 11400 MT/s with EXPO and XMP 3.0 profiles
  • PCIe 5.0 x16 graphics slot and PCIe 5.0 M.2 storage from CPU lanes
  • 5 Gbps wired LAN plus Wi-Fi 802.11 be and BLUETOOTH 5.4 connectivity
  • Realtek ALC1220 audio delivers 7.1 channel surround sound

Specifications

BrandGIGABYTE
ModelX870 AORUS INFINITY
CPU Socket TypeAM5
CPU TypeRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
ChipsetAMD X870
Number of Memory Slots2x288pin (DDR5)
Memory StandardUp to DDR5 11400 (OC)
Maximum Memory Supported128GB
Channel SupportedDual Channel
Memory Performance ProfileAMD EXPO / Intel XMP 3.0
ECC SupportedNon-ECC
PCI Express 5.0 x161 x PCI Express x16 slot (PCIEX16), integrated in the CPU:
- AMD Ryzen 9000/7000 Series Processors support PCIe 5.0 x16 mode
- AMD Ryzen 8000 Series-Phoenix 1 Processors support PCIe 4.0 x8 mode
- AMD Ryzen 8000 Series-Phoenix 2 Processors support PCIe 4.0 x4 mode
* The PCIEX8 slot shares bandwidth with the PCIEX16 slot. When the PCIEX8 slot is populated, the PCIEX16 slot operates at up to x8 mode.
* The PCIEX16 and PCIEX8 slots can only support a graphics card or an NVMe SSD. If only one graphics card is to be installed, be sure to install it in the PCIEX16 slot.
1 x PCI Express x16
Serial ATA (SATA)4 x SATA 6Gb/s
M.21 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 25110/22110/2580/2280 SSDs:
- AMD Ryzen 9000/7000 Series Processors support PCIe 5.0 x4/x2 SSDs
- AMD Ryzen 8000 Series-Phoenix 1 Processors support PCIe 4.0 x4/x2 SSDs
- AMD Ryzen 8000 Series-Phoenix 2 Processors support PCIe 4.0 x4/x2 SSDs
1 x M.2 connector (M2B_CPU), integrated in the CPU, supporting Socket 3, M key, type 22110/2280 SSDs:
- AMD Ryzen 9000/7000 Series Processors support PCIe 5.0 x4/x2 SSDs
* The M2B_CPU connector shares bandwidth with the ASMedia USB4 controller.
When a device is i
SATA RAIDRAID 0, RAID 1, RAID 5, and RAID 10 support for NVMe SSD storage devices
* RAID 5 is only available on AMD Ryzen 9000 Series Processors.
Audio ChipsetRealtek ALC1220
Audio Channels7.1 Channels
Max LAN Speed5Gbps
Wireless LANWi-Fi 802.11 be
BluetoothBLUETOOTH 5.4
Back I/O Ports1 x Q-Flash Plus button
1 x OC Ignition button
1 x PS/2 keyboard port
1 x PS/2 mouse port
1 x HDMI port (Note)
4 x USB 3.2 Gen 1 ports
3 x USB 3.2 Gen 2 Type-A ports (red)
1 x USB4 USB Type-C port (DisplayPort (Note))
1 x RJ-45 port
2 x antenna connectors (2T2R)
2 x audio jacks
1 x optical S/PDIF Out connector
Onboard USB1 x USB Type-C header, with USB 3.2 Gen 2x2 support
1 x USB 3.2 Gen 1 header
2 x USB 2.0/1.1 headers
Other Connectors1 x PCIe power connector
1 x CPU fan header
1 x CPU fan/water cooling pump header
4 x system fan headers
2 x system fan/water cooling pump headers
3 x addressable RGB Gen2 LED strip headers
1 x RGB LED strip header
3 x M.2 Socket 3 connectors
4 x SATA 6Gb/s connectors
1 x front panel header
1 x front panel audio header
1 x Trusted Platform Module header (For the GC-TPM2.0 SPI V2 module only)
1 x HDMI port (Note)
1 x Clear CMOS jumper
2 x temperature sensor headers
1 x power button (PWR)
1 x reset button (RESET)
1 x Clear CMOS button (CMOS)
1 x Cold Reset button (RTY)
1 x CPU Clock up
Form FactorExtended ATX
Dimensions (W x L)12.0" x 10.8"
Power Pin1 x 24-pin ATX main power connector
2 x 8-pin ATX 12V power connectors
BIOS Feature2 x 512 Mbit flash
Use of licensed AMI UEFI BIOS
Support for DualBIOS
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Shipping weight4.04 kg
Package size368 × 330 × 97 mm

Questions about this item

Which DDR5 speed should I pick for this board?

The board is validated up to DDR5 11400 (OC) via AMD EXPO or Intel XMP 3.0 profiles, so choose a kit rated at or below that speed for guaranteed stability.

What does the DDR5 11400 (OC) figure mean once the board is running?

It is the maximum overclocked memory frequency the board can sustain with a compatible Ryzen 7000, 8000 or 9000 series CPU and an EXPO or XMP 3.0 kit; actual speed depends on the processor's memory controller.

How does the PCIe 5.0 x16 slot behave with different Ryzen generations?

Ryzen 9000 and 7000 series run the slot at PCIe 5.0 x16; Ryzen 8000 Phoenix 1 runs it at PCIe 4.0 x8; Phoenix 2 runs it at PCIe 4.0 x4. Populating the second x16 slot reduces the primary to x8.

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