ASRock FM2A75M-DGS R2.0 vs B450M/AC R2.0 Motherboard Comparison

ASRock FM2A75M-DGS R2.0 and ASRock B450M/AC R2.0 are both motherboards with the same Form factor (Micro ATX), Onboard USB 2.0 (2) and Onboard USB 3.2 Gen 1 (1). The main differences are in Socket, Chipset, Supported Memory and CrossFire Support.

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ASRock FM2A75M-DGS R2.0	ASRock B450M/AC R2.0
Prices (Change region) - Buy now	Prices (Change region) Out of Stock Free shipping $72.88 Out of Stock $81.99 - Buy now
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Pangoly Score (How do we rate?) 78	Pangoly Score (How do we rate?) -
Brand ASRock	Brand ASRock
Model FM2A75M-DGS R2.0	Model B450M/AC R2.0
Release Date 📅 October 2013	Release Date 📅 February 2023
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★★ (2 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 ►
Pros USB 3.0	Pros -
Cons No HDMI output Only 2x DDR3 slots	Cons -
Socket FM2	Socket AM4
Form factor Micro ATX	Form factor Micro ATX
Chipset AMD A75	Chipset AMD B450
Supported Memory DDR3 1066Mhz 1333Mhz 1600Mhz 1866Mhz	Supported Memory DDR4 2133Mhz 2400Mhz 2666Mhz 2933Mhz 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
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 No	Wireless LAN Yes
Wi-Fi Generation -	Wi-Fi Generation 5
PCI-Express x16 Slots 1	PCI-Express x16 Slots 2
PCI-Express x4 Slots 0	PCI-Express x4 Slots 0
PCI-Express x1 Slots 1	PCI-Express x1 Slots 0
SATA 6 Gbps Ports 6	SATA 6 Gbps Ports 4
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 0	M.2 Ports 2
M.2 Devices support -	M.2 Devices support 2242 / 2260 / 2280 - M Key 2230 - E Key
RAM Slots 2	RAM Slots 4
Maximum Supported RAM 32 GB	Maximum Supported RAM 128 GB
Onboard USB 2.0 2	Onboard USB 2.0 2
Onboard USB 3.2 Gen 1 1	Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 0	Onboard USB 3.2 Gen 2 0
Onboard USB 3.2 Gen 2x2 0	Onboard USB 3.2 Gen 2x2 0
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