GIGABYTE X870E AORUS PRO X3D vs ASUS X99-A Motherboard Comparison

GIGABYTE X870E AORUS PRO X3D and ASUS X99-A are both motherboards with the same RAM Slots (4), Onboard USB 2.0 (2) and Onboard USB 3.2 Gen 1 (2). The main differences are in Socket, Form factor, Chipset and Supported Memory.

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GIGABYTE X870E AORUS PRO X3D	ASUS X99-A
Prices (Change region) In Stock $439.99 Last updated 36 minutes ago. In Stock Free shipping $439.99	Prices (Change region) Out of Stock Free shipping $439.62 - Buy now
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Brand GIGABYTE	Brand ASUS
Model X870E AORUS PRO X3D X870E A PRO X	Model X99-A
Release Date 📅 February 2026	Release Date 📅 October 2014
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★☆ (55 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 LGA2011-3
Form factor ATX	Form factor Micro ATX
Chipset AMD X870E	Chipset Intel X99
Supported Memory DDR5 4800Mhz 9000Mhz	Supported Memory DDR4 2133Mhz 2400Mhz 2666Mhz 2800Mhz 3000Mhz 3200Mhz
* 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
Audio Chipset -	Audio Chipset Realtek ALC1150
Audio Channels -	Audio Channels 8 Channels
LAN Chipset -	LAN Chipset Intel I218V
Max LAN Speed -	Max LAN Speed 10/100/1000Mbps
SLI Support No	SLI Support Yes
CrossFire Support No	CrossFire Support Yes
RAID Support Yes	RAID Support Yes
Back Connect No	Back Connect No
Wireless LAN Yes	Wireless LAN No
Wi-Fi Generation 7	Wi-Fi Generation -
PCI-Express x16 Slots 3	PCI-Express x16 Slots 4
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 0	PCI-Express x1 Slots 2
SATA 6 Gbps Ports 4	SATA 6 Gbps Ports 8
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 4	M.2 Ports 1
M.2 Devices support 2280 / 25110 - M Key 2280 / 22110 - M Key 2280 / 22110 - M Key 2280 / 22110 - M Key	M.2 Devices support 2242 / 2260 / 2280 - M Key
RAM Slots 4	RAM Slots 4
Maximum Supported RAM 256 GB	Maximum Supported RAM 64 GB
Onboard USB 2.0 2	Onboard USB 2.0 2
Onboard USB 3.2 Gen 1 2	Onboard USB 3.2 Gen 1 2
Onboard USB 3.2 Gen 2 0	Onboard USB 3.2 Gen 2 0
Onboard USB 3.2 Gen 2x2 1	Onboard USB 3.2 Gen 2x2 0