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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

  • ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
  • ChipsetAMD X870
  • Form factorExtended ATX
  • CPU socketAM5
  • Memory slot count2 × 288pin (DDR5)
  • Supported memoryUp to DDR5 11400 (OC)
  • 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.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $581.99
Pricier than about 69% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameGIGABYTE
Model nameX870 AORUS INFINITY
Processor
ProcessorRyzen 7000 Series / Ryzen 8000 Series / Ryzen 9000 Series
CPU socketAM5
ChipsetAMD X870
Memory
Memory slot count2 × 288pin (DDR5)
Supported memoryUp to DDR5 11400 (OC)
Max supported RAM128 GB
Memory channelsDual Channel
Memory profilesAMD EXPO / Intel XMP 3.0
ECC supportNon-ECC
Storage
SATA ports4 x SATA 6Gb/s
M.2 slots1 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 and RAID supportRAID 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 & video
Audio chipRealtek ALC1220
Sound channels7.1 Channels
Connectivity
Maximum network speed5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
Rear panel 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 USB headers1 x USB Type-C header, with USB 3.2 Gen 2 × 2 support
1 x USB 3.2 Gen 1 header
2 x USB 2.0/1.1 headers
Power
Power connectors1 × 24-pin ATX main power connector
2 × 8-pin ATX 12 V power connectors
Size & build
Form factorExtended ATX
Width and length12.0 in × 10.8 in
Shipping weight4.04 kg
Package size368 × 330 × 97 mm
More details
BIOS2 × 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

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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