Product comparison · 2 motherboards

ASUS PRIME X299-A vs MSI B250M PRO OPT BOOST

Add a product
  • 45specifications compared
  • 21differ
  • 24identical
  • 33known for one product only

Key differences

  • Processor socket
    • PRIME X299-A:LGA 2066 (Socket R4)
    • B250M PRO OPT BOOST:LGA 1151 (Socket H4)
  • Number of memory slots
    • PRIME X299-A:8
    • B250M PRO OPT BOOST:2
  • Supported memory clock speeds
    • PRIME X299-A:2133,2400,2666,3600,4000 MHz
    • B250M PRO OPT BOOST:2133,2400 MHz
  • Maximum internal memory
    • PRIME X299-A:128 GB
    • B250M PRO OPT BOOST:32 GB
  • USB 2.0 connectors
    • PRIME X299-A:1
    • B250M PRO OPT BOOST:2
  • USB 3.2 Gen 1 (3.1 Gen 1) connectors
    • PRIME X299-A:2
    • B250M PRO OPT BOOST:1
  • USB 3.2 Gen 2 (3.1 Gen 2) connectors
    • PRIME X299-A:1
    • B250M PRO OPT BOOST:0
  • Number of SATA III connectors
    • PRIME X299-A:8
    • B250M PRO OPT BOOST:6

Side by side

Differences highlightedShow differences only (on)
Comparison of PRIME X299-A, B250M PRO OPT BOOST
78 specifications
Processor2 differ
Processor socketDiffersLGA 2066 (Socket R4)LGA 1151 (Socket H4)
Compatible processor seriesDiffersIntel® Core™ i7Intel® Celeron®, Intel® Core™ i3, Intel® Core™ i5, Intel® Core™ i7, Intel® Pentium®
Memory3 differ
Number of memory slotsDiffers82
Memory channelsKnown for oneUnknown — not stated by the sourceDual-channel
Supported memory clock speedsDiffers2133,2400,2666,3600,4000 MHz2133,2400 MHz
Maximum internal memoryDiffers128 GB32 GB
Supported memory module capacitiesKnown for oneUnknown — not stated by the source16GB
Storage controllersidentical
Supported storage drive typesKnown for oneUnknown — not stated by the sourceHDD & SSD
RAID levelsKnown for one0, 1, 5, 10Unknown — not stated by the source
Internal I/O5 differ
USB 2.0 connectorsDiffers12
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers21
USB 3.2 Gen 2 (3.1 Gen 2) connectorsDiffers10
Number of SATA III connectorsDiffers86
Front panel audio connectorKnown for oneUnknown — not stated by the sourceYes
Front panel connectorKnown for oneUnknown — not stated by the sourceYes
ATX Power connector (24-pin)Known for oneUnknown — not stated by the sourceYes
Number of chassis fan connectorsDiffers21
Chassis intrusion connectorKnown for oneUnknown — not stated by the sourceYes
EPS power connector (8-pin)Known for oneUnknown — not stated by the sourceYes
Serial port headersKnown for oneUnknown — not stated by the source1
Number of EATX power connectorsKnown for one1Unknown — not stated by the source
Rear panel I/O ports5 differ
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityDiffers10
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityDiffers10
PS/2 ports quantityDiffers01
VGA (D-Sub) ports quantityDiffers01
DVI-D ports quantityDiffers01
DVI-I ports quantityKnown for one0Unknown — not stated by the source
S/PDIF out portKnown for oneYesUnknown — not stated by the source
Digital audio optical outKnown for one0Unknown — not stated by the source
COM ports quantityKnown for one0Unknown — not stated by the source
Parallel ports quantityKnown for one0Unknown — not stated by the source
Serial ports quantityKnown for one0Unknown — not stated by the source
WiFi-AP antenna jackKnown for one0Unknown — not stated by the source
Modem (RJ-11) portsKnown for one0Unknown — not stated by the source
Network1 differ
Ethernet interface typeKnown for oneUnknown — not stated by the sourceGigabit Ethernet
LAN controllerDiffersIntel® I219-VRealtek RTL8111H
Wi-FiKnown for oneUnknown — not stated by the sourceNo
Wake-on-LAN readyKnown for oneYesUnknown — not stated by the source
Features3 differ
Motherboard form factorDiffersATXmicro ATX
Motherboard chipsetDiffersIntel® X299Intel® B250
Audio chipKnown for oneUnknown — not stated by the sourceRealtek ALC887
Linux operating systems supportedKnown for oneUnknown — not stated by the sourceYes
Windows operating systems supportedDiffersWindows 10Yes
Expansion slotsidentical
PCI Express x1 (Gen 3.x) slotsKnown for oneUnknown — not stated by the source2
PCI Express x16 (Gen 3.x) slotsKnown for oneUnknown — not stated by the source1
Number of M.2 (M) slotsKnown for one2Unknown — not stated by the source
BIOSidentical
BIOS memory sizeKnown for one128 MbitUnknown — not stated by the source
ACPI versionKnown for one6.0Unknown — not stated by the source
Processor special featuresidentical
Intel® Optane™ Memory ReadyKnown for oneUnknown — not stated by the sourceYes
Intel® Optane™ Memory module installedKnown for oneUnknown — not stated by the sourceYes
Weight & dimensions2 differ
WidthDiffers305 mm226 mm
DepthDiffers244 mm185 mm
Other featuresidentical
Serial port via internal headerKnown for oneUnknown — not stated by the sourceYes
Packaging contentidentical
ManualKnown for oneYesUnknown — 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.

More motherboard comparisons

All motherboard comparisons