Asus ROG STRIX B660-I GAMING WIFI vs ROG Strix B850-I Gaming WiFi Motherboard Comparison

Asus ROG STRIX B660-I GAMING WIFI and ASUS ROG Strix B850-I Gaming WiFi are both motherboards with the same Form factor (Mini ITX), PCI-Express x16 Slots (1) and M.2 Ports (2). The main differences are in Socket, Chipset, Supported Memory and Audio Chipset.

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Asus ROG STRIX B660-I GAMING WIFI	ASUS ROG Strix B850-I Gaming WiFi
Prices (Change region) In Stock $199.99 In Stock Free shipping $290.80	Prices (Change region) In Stock $289.00 Last updated 45 minutes ago. In Stock Free shipping $325.99 In Stock Free shipping $331.99 In Stock $359.99 Out of Stock $389.93 Out of Stock Free shipping $499.00 Show 3 more offers
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Brand Asus	Brand ASUS
Model ROG STRIX B660-I GAMING WIFI 90MB19C0-M0AAY0	Model ROG STRIX B850-I GAMING WIFI STRIX B850-I GAMING WIFI 90MB1K30-M0AAY0
Release Date -	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 ►
Series ROG	Series -
Socket LGA1700	Socket AM5
Form factor Mini ITX	Form factor Mini ITX
Chipset Intel B660	Chipset AMD B850
Supported Memory DDR5 4800Mhz 5000Mhz 5200Mhz 5400Mhz 5600Mhz 5800Mhz 6000Mhz 6200Mhz	Supported Memory DDR5 4400Mhz 8400Mhz
* 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 ROG SupremeFX 7.1-Channel High Definition Audio CODEC S1220A	Audio Chipset Realtek ALC4080
Audio Channels 7.1 Channels	Audio Channels ROG SupremeFX 7.1 Surround Sound High Definition Audio CODEC ALC4080
LAN Chipset Intel I225-V 2.5Gb Ethernet	LAN Chipset -
Max LAN Speed 10/100/1000/2500Mbps	Max LAN Speed 2.5Gbps
SLI Support No	SLI Support No
CrossFire Support No	CrossFire Support No
RAID Support Yes	RAID Support No
Back Connect No	Back Connect No
Back I/O Ports 1 x USB 3.2 Gen 2x2 port (1 x USB Type-C) 4 x USB 3.2 Gen 1 ports (3 x Type-A +1 x USB Type-C) 3 x USB 2.0 ports (3 x Type-A) 1 x HDMI port 1 x DisplayPort 1 x Wi-Fi Module 1 x Intel I225-V 2.5Gb Ethernet 5 x Audio jacks	Back I/O Ports 1 x USB 20Gbps port(s) 5 x USB 10Gbps port(s) (4 x Type-A + 1 x USB Type-C with DP Alt mode) 2 x USB 2.0 port(s) (2 x Type-A) 1 x HDMI port 1 x Wi-Fi module 1 x Intel 2.5Gb Ethernet port 3 x Audio jacks 1 x Optical S/PDIF out port 1 x BIOS FlashBack button 1 x Clear CMOS button 1 x FlexKey button
Wireless LAN Yes	Wireless LAN Yes
Wi-Fi Generation 6	Wi-Fi Generation 7
PCI-Express x16 Slots 1	PCI-Express x16 Slots 1
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 2
SATA Express Ports 0	SATA Express Ports 0
M.2 Ports 2	M.2 Ports 2
M.2 Devices support 2260 / 2280 - M Key 2242 / 2260 / 2280 - M Key	M.2 Devices support 2242 / 2260 / 2280 - M Key 2242 / 2260 / 2280 - M Key
RAM Slots 2	RAM Slots 2
Maximum Supported RAM 96 GB	Maximum Supported RAM 96 GB
Onboard USB 2.0 1	Onboard USB 2.0 1
Onboard USB 3.2 Gen 1 1	Onboard USB 3.2 Gen 1 1
Onboard USB 3.2 Gen 2 1	Onboard USB 3.2 Gen 2 1
Onboard USB 3.2 Gen 2x2 0	Onboard USB 3.2 Gen 2x2 0
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