GIGABYTE X870E AORUS PRO X3D vs B660 AORUS MASTER Motherboard Comparison

GIGABYTE X870E AORUS PRO X3D and Gigabyte B660 AORUS MASTER are both motherboards with the same Form factor (ATX), PCI-Express x16 Slots (3) and SATA 6 Gbps Ports (4). The main differences are in Socket, Chipset, Supported Memory and CrossFire Support.

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GIGABYTE X870E AORUS PRO X3D	Gigabyte B660 AORUS MASTER
Prices (Change region) In Stock $439.99 Last updated 40 minutes ago. In Stock Free shipping $439.99	Prices (Change region) - Buy now
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Brand GIGABYTE	Brand Gigabyte
Model X870E AORUS PRO X3D X870E A PRO X	Model B660 AORUS MASTER
Release Date 📅 February 2026	Release Date -
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews Add a product review
Price history View Details ►	Price history View Details ►
Compatible PC parts Processors ► Memory ► Cases ► CPU Coolers ►	Compatible PC parts Processors ► Memory ► Cases ► CPU Coolers ►
Socket AM5	Socket LGA1700
Form factor ATX	Form factor ATX
Chipset AMD X870E	Chipset Intel B660
Supported Memory DDR5 4800Mhz 9000Mhz	Supported Memory DDR5 4800Mhz 5000Mhz 5200Mhz 5400Mhz 5600Mhz 5800Mhz 6000Mhz
* High clock speeds may require enabling the XMP profile in the motherboard BIOS ** RAM support may also depend on the CPU memory controller
ECC RAM Support No	ECC RAM Support No
SLI Support No	SLI Support No
CrossFire Support No	CrossFire Support Yes
RAID Support Yes	RAID Support Yes
Back Connect No	Back Connect No
Wireless LAN Yes	Wireless LAN Yes
Wi-Fi Generation 7	Wi-Fi Generation 6
PCI-Express x16 Slots 3	PCI-Express x16 Slots 3
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 0	PCI-Express x1 Slots 0
SATA 6 Gbps Ports 4	SATA 6 Gbps Ports 4
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 4	M.2 Ports 3
M.2 Devices support 2280 / 25110 - M Key 2280 / 22110 - M Key 2280 / 22110 - M Key 2280 / 22110 - M Key	M.2 Devices support 2260 / 2280 / 22110 - M Key 2260 / 2280 / 22110 - M Key 2260 / 2280 / 22110 - M Key
RAM Slots 4	RAM Slots 4
Maximum Supported RAM 256 GB	Maximum Supported RAM 192 GB
Onboard USB 2.0 2	Onboard USB 2.0 2
Onboard USB 3.2 Gen 1 2	Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 0	Onboard USB 3.2 Gen 2 1
Onboard USB 3.2 Gen 2x2 1	Onboard USB 3.2 Gen 2x2 0