GIGABYTE B840M D3HP vs ASRock 990FX EXTREME3 Motherboard Comparison

GIGABYTE B840M D3HP and ASRock 990FX EXTREME3 are both motherboards with the same PCI-Express x1 Slots (1) and RAM Slots (4). The main differences are in Socket, Form factor, Chipset and Supported Memory.

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GIGABYTE B840M D3HP	ASRock 990FX EXTREME3
Prices (Change region) In Stock $259.27 Last updated 50 minutes ago.	Prices (Change region) Out of Stock Free shipping $219.99 - Buy now
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Pangoly Score (How do we rate?) -	Pangoly Score (How do we rate?) 82
Brand GIGABYTE	Brand ASRock
Model B840M D3HP	Model 990FX EXTREME3
Release Date 📅 February 2026	Release Date 📅 September 2011
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews Add a product review	User reviews ★★★★☆ (29 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 ►
Pros -	Pros Supports NVIDIA Quad-GPU SLI Supports AMD Quad-GPU CrossFireX
Cons -	Cons Limited overclock
Socket AM5	Socket AM3+/AM3
Form factor Micro ATX	Form factor ATX
Chipset AMD B840	Chipset AMD 990FX
Supported Memory DDR5 5600Mhz 5800Mhz 6000Mhz 6200Mhz 6400Mhz 6600Mhz 6800Mhz 7000Mhz 7200Mhz 7400Mhz 7600Mhz 7800Mhz 7900Mhz 7950Mhz 8000Mhz 8200Mhz	Supported Memory DDR3 800Mhz 1066Mhz 1333Mhz 1600Mhz 1866Mhz 2100Mhz
* 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 Yes
CrossFire Support No	CrossFire Support Yes
RAID Support Yes	RAID Support Yes
Back Connect No	Back Connect No
Wireless LAN No	Wireless LAN No
PCI-Express x16 Slots 1	PCI-Express x16 Slots 3
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 1	PCI-Express x1 Slots 1
SATA 6 Gbps Ports 4	SATA 6 Gbps Ports 5
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 2	M.2 Ports 0
M.2 Devices support 2580 - M Key 2280 - M Key	M.2 Devices support -
RAM Slots 4	RAM Slots 4
Maximum Supported RAM 256 GB	Maximum Supported RAM 32 GB
Onboard USB 2.0 1	Onboard USB 2.0 3
Onboard USB 3.2 Gen 1 1	Onboard USB 3.2 Gen 1 0
Onboard USB 3.2 Gen 2 1	Onboard USB 3.2 Gen 2 0
Onboard USB 3.2 Gen 2x2 0	Onboard USB 3.2 Gen 2x2 0