ASRock Z890 Pro-A vs B850 Pro-A Motherboard Comparison

ASRock Z890 Pro-A and ASRock B850 Pro-A are both motherboards with the same Form factor (ATX), Audio Chipset (Realtek ALC897) and Audio Channels (7.1 Channels). The main differences are in Socket, Chipset, Supported Memory and Back I/O Ports.

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ASRock Z890 Pro-A	ASRock B850 Pro-A
Prices (Change region) In Stock $189.99 Last updated 50 minutes ago. In Stock Free shipping $445.47	Prices (Change region) Out of Stock Free shipping $101.99 Out of Stock $108.49 Out of Stock Free shipping $139.99
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Brand ASRock	Brand ASRock
Model Z890 Pro-A	Model B850 Pro-A
Release Date 📅 October 2024	Release Date 📅 January 2025
* 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 LGA1851	Socket AM5
Form factor ATX	Form factor ATX
Chipset Intel Z890	Chipset AMD B850
Supported Memory DDR5 4400Mhz 4800Mhz 5200Mhz 5600Mhz 6000Mhz 6200Mhz 6400Mhz 6600Mhz 6800Mhz 7000Mhz 7200Mhz 7600Mhz 7800Mhz 8000Mhz 8200Mhz 8400Mhz	Supported Memory DDR5 4400Mhz 4800Mhz 5200Mhz 5600Mhz 6000Mhz 6200Mhz 6400Mhz 6600Mhz 6800Mhz 7000Mhz 7200Mhz 7600Mhz 7800Mhz 8000Mhz
* 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 Realtek ALC897	Audio Chipset Realtek ALC897
Audio Channels 7.1 Channels	Audio Channels 7.1 Channels
LAN Chipset Dragon RTL8125BG	LAN Chipset Dragon RTL8125BG
Max LAN Speed 2.5Gbps	Max LAN Speed 2.5Gbps
SLI Support No	SLI Support No
CrossFire Support No	CrossFire Support No
RAID Support Yes	RAID Support Yes
Back Connect No	Back Connect No
Back I/O Ports 2 x Antenna Mounting Points 1 x HDMI Port 1 x DisplayPort 1.4 1 x Thunderbolt 4 Type-C Port (40 Gb/s for USB4 protocol; 40Gb/s for Thunderbolt protocol)* 1 x USB 3.2 Gen2x2 Type-C Port (20 Gb/s) 1 x USB 3.2 Gen2 Type-A Port (10 Gb/s) 2 x USB 3.2 Gen1 Ports 4 x USB 2.0 Ports 1 x RJ-45 LAN Port 1 x BIOS Flashback Button HD Audio Jacks: Line in / Front Speaker / Microphone * Supports USB PD 3.0 up to 5V@3A (15W) charging	Back I/O Ports 2 x Antenna Mounting Points 1 x HDMI Port 1 x USB 3.2 Gen2 Type-C Port (10 Gb/s) 1 x USB 3.2 Gen1 Type-C Port (DP-alt mode supports DP1.4a) 4 x USB 3.2 Gen1 Type-A Ports 6 x USB 2.0 Ports 1 x RJ-45 LAN Port 1 x BIOS Flashback Button HD Audio Jacks: Line in / Front Speaker / Microphone
Wireless LAN No	Wireless LAN No
PCI-Express x16 Slots 1	PCI-Express x16 Slots 2
PCI-Express x4 Slots 2	PCI-Express x4 Slots 0
PCI-Express x1 Slots 1	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 5	M.2 Ports 5
M.2 Devices support 2280 - M Key 2280 - M Key 2280 - M Key 2230 / 2242 / 2260 / 2280 - M Key 2230 - E Key	M.2 Devices support 2280 - M Key 2280 - M Key 2230 / 2242 / 2260 / 2280 - M Key 2280 - M Key 2230 - E Key
RAM Slots 4	RAM Slots 4
Maximum Supported RAM 256 GB	Maximum Supported RAM 256 GB
Onboard USB 2.0 2	Onboard USB 2.0 1
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 0
Onboard USB 3.2 Gen 2x2 1	Onboard USB 3.2 Gen 2x2 1