Product comparison · 2 motherboards

ASUS PRIME B840M-R vs MSI MAG B850 TOMAHAWK MAX WIFI II

49specifications compared
26differ
23identical
49known for one product only

Key differences

The MSI MAG B850 TOMAHAWK MAX WIFI II has 2 more memory slots than the ASUS PRIME B840M-R (4 vs 2). The MSI MAG B850 TOMAHAWK MAX WIFI II has 800 MHz more supported memory clock speed (max) than the ASUS PRIME B840M-R (8400 MHz vs 7600 MHz). The MSI MAG B850 TOMAHAWK MAX WIFI II has 128 GB more maximum internal memory than the ASUS PRIME B840M-R (256 GB vs 128 GB). Only the MSI MAG B850 TOMAHAWK MAX WIFI II has Wi-Fi. Supported storage drive interfaces: M.2, SATA III on the ASUS PRIME B840M-R, M.2, Micro SATA III on the MSI MAG B850 TOMAHAWK MAX WIFI II.

Number of memory slots
- PRIME B840M-R:2
- MAG B850 TOMAHAWK MAX WIFI II:4
Supported memory clock speed (max)
- PRIME B840M-R:7600 MHz
- MAG B850 TOMAHAWK MAX WIFI II:8400 MHz
Maximum internal memory
- PRIME B840M-R:128 GB
- MAG B850 TOMAHAWK MAX WIFI II:256 GB
Supported storage drive interfaces
- PRIME B840M-R:M.2, SATA III
- MAG B850 TOMAHAWK MAX WIFI II:M.2, Micro SATA III
Number of storage drives supported
- PRIME B840M-R:6
- MAG B850 TOMAHAWK MAX WIFI II:8
RAID levels
- PRIME B840M-R:0, 1, 5, 10
- MAG B850 TOMAHAWK MAX WIFI II:0, 1, 10
USB 2.0 connectors
- PRIME B840M-R:2
- MAG B850 TOMAHAWK MAX WIFI II:4
USB 3.2 Gen 1 (3.1 Gen 1) connectors
- PRIME B840M-R:1
- MAG B850 TOMAHAWK MAX WIFI II:4

Side by side

Differences highlightedShow differences only

Comparison of PRIME B840M-R, MAG B850 TOMAHAWK MAX WIFI II
98 specifications	A ASUS PRIME B840M-R View product	B MSI MAG B850 TOMAHAWK MAX WIFI II View product
Processor1 differ
Compatible processor seriesDiffers	AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series	AMD Ryzen 7000 Series, AMD Ryzen 8000 Series, AMD Ryzen 9000 Series
Supported processor socketsKnown for one	Unknown — not stated by the source	Socket AM5
Memory3 differ
Number of memory slotsDiffers	2	4
Supported memory clock speedsKnown for one	Unknown — not stated by the source	4800,5600,8400 MHz
Supported memory clock speed (max)Differs	7600 MHz	8400 MHz
Maximum internal memoryDiffers	128 GB	256 GB
Unbuffered memoryKnown for one	Yes	Unknown — not stated by the source
Storage controllers3 differ
Supported storage drive interfacesDiffers	M.2, SATA III	M.2, Micro SATA III
Number of storage drives supportedDiffers	6	8
RAID levelsDiffers	0, 1, 5, 10	0, 1, 10
Graphicsidentical
On-board graphics cardKnown for one	Unknown — not stated by the source	No
Parallel processing technology supportKnown for one	Not supported	Unknown — not stated by the source
Internal I/O4 differ
USB 2.0 connectorsDiffers	2	4
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers	1	4
USB 3.2 Gen 2 (3.1 Gen 2) connectorsDiffers	0	1
Number of SATA II connectorsKnown for one	Unknown — not stated by the source	0
Number of SATA connectorsKnown for one	Unknown — not stated by the source	0
Total number of SATA connectorsKnown for one	Unknown — not stated by the source	4
Number of CPU fan connectorsDiffers	1	6
Number of water pump connectorsKnown for one	Unknown — not stated by the source	1
RGB LED pin headerKnown for one	Unknown — not stated by the source	Yes
Number of RGB LED pin headersKnown for one	Unknown — not stated by the source	3
S/PDIF out connectorKnown for one	Yes	Unknown — not stated by the source
Front panel audio connectorKnown for one	Yes	Unknown — not stated by the source
ATX Power connector (24-pin)Known for one	Yes	Unknown — not stated by the source
Number of chassis fan connectorsKnown for one	2	Unknown — not stated by the source
EPS power connector (8-pin)Known for one	Yes	Unknown — not stated by the source
12V power connectorKnown for one	Yes	Unknown — not stated by the source
Number of COM connectorsKnown for one	1	Unknown — not stated by the source
TPM connectorKnown for one	Yes	Unknown — not stated by the source
Rear panel I/O ports4 differ
USB 2.0 ports quantityDiffers	2	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	4	1
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityDiffers	0	2
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityDiffers	0	3
HDMI versionKnown for one	Unknown — not stated by the source	2.1
PS/2 ports quantityKnown for one	1	Unknown — not stated by the source
DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
Headphone outputsKnown for one	1	Unknown — not stated by the source
Line-inKnown for one	Yes	Unknown — not stated by the source
Microphone inKnown for one	Yes	Unknown — not stated by the source
USB connector typeKnown for one	USB Type-A	Unknown — not stated by the source
Network3 differ
Ethernet interface typeDiffers	Gigabit Ethernet	5 Gigabit Ethernet
Wi-FiDiffers	No	Yes
Top Wi-Fi standardDiffers	Not available	Wi-Fi 7 (802.11be)
Wi-Fi standardsKnown for one	Unknown — not stated by the source	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax), Wi-Fi 6E (802.11ax), Wi-Fi 7 (802.11be)
BluetoothKnown for one	Unknown — not stated by the source	Yes
Bluetooth versionKnown for one	Unknown — not stated by the source	5.4
Features4 differ
Motherboard form factorDiffers	micro ATX	ATX
Motherboard chipsetDiffers	AMD B840	AMD B850
Audio chipKnown for one	Unknown — not stated by the source	Realtek ALC4080
Product colourDiffers	Multicolour	Black
Windows operating systems supportedDiffers	Windows 11, Windows 10 x64	Windows 11 x64
Expansion slots2 differ
PCI Express x16 (Gen 3.x) slotsKnown for one	Unknown — not stated by the source	1
PCI Express x16 (Gen 5.x) slotsKnown for one	Unknown — not stated by the source	1
Number of M.2 (M) slotsDiffers	2	4
1st M.2 largest key sizeDiffers	2280	22110
1st M.2 highest PCI Express generationKnown for one	Unknown — not stated by the source	5.0
2nd M.2 largest key sizeKnown for one	Unknown — not stated by the source	2280
2nd M.2 highest PCI Express generationKnown for one	Unknown — not stated by the source	5.0
3rd M.2 largest key sizeKnown for one	Unknown — not stated by the source	2280
3rd M.2 highest PCI Express generationKnown for one	Unknown — not stated by the source	4.0
4th M.2 largest key sizeKnown for one	Unknown — not stated by the source	2280
4th M.2 highest PCI Express generationKnown for one	Unknown — not stated by the source	4.0
PCI Express x1 (Gen 3.x) slotsKnown for one	1	Unknown — not stated by the source
BIOSidentical
ACPI versionKnown for one	Unknown — not stated by the source	6.5
System Management BIOS (SMBIOS) versionKnown for one	Unknown — not stated by the source	3.7
Weight & dimensions2 differ
WidthDiffers	236 mm	243.8 mm
DepthDiffers	229 mm	304.8 mm
HeightKnown for one	36.5 mm	Unknown — not stated by the source
Other featuresidentical
mSATA ports quantityKnown for one	Unknown — not stated by the source	0
WeightKnown for one	563 g	Unknown — not stated by the source
Packaging dataidentical
Package widthKnown for one	260 mm	Unknown — not stated by the source
Package depthKnown for one	270 mm	Unknown — not stated by the source
Package heightKnown for one	51.5 mm	Unknown — not stated by the source
Package weightKnown for one	924 g	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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