Product comparison · 2 motherboards

ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX vs ASUS P9X79-E WS

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  • 31specifications compared
  • 21differ
  • 10identical
  • 27known for one product only

Key differences

The ASUS P9X79-E WS has 48 GB more maximum internal memory than the ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX (64 GB vs 16 GB). The ASUS P9X79-E WS has 5 more SATA III connectors than the ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX (6 vs 1). The ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX has 1 more SATA II connectors than the ASUS P9X79-E WS (5 vs 4). Processor socket: LGA 1155 (Socket H2) on the ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX, LGA 2011 (Socket R) on the ASUS P9X79-E WS. Compatible processor series: Intel® Celeron®, Intel® Pentium® on the ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX, Intel® Core™ i7 on the ASUS P9X79-E WS.

  • Processor socket
    • B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:LGA 1155 (Socket H2)
    • P9X79-E WS:LGA 2011 (Socket R)
  • Memory channels
    • B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:Dual-channel
    • P9X79-E WS:Quad-channel
  • Maximum internal memory
    • B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:16 GB
    • P9X79-E WS:64 GB
  • Parallel processing technology support
    • B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:Not supported
    • P9X79-E WS:4-Way CrossFireX, 4-Way SLI
  • Number of SATA III connectors
    • B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:1
    • P9X79-E WS:6
  • Number of SATA II connectors
    • B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:5
    • P9X79-E WS:4
  • USB 2.0 ports quantity
    • B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:4
    • P9X79-E WS:10
  • Ethernet LAN (RJ-45) ports
    • B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:1
    • P9X79-E WS:2

Side by side

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Comparison of B75M-A, P9X79-E WS
58 specifications
Processor2 differ
Processor manufacturerIntelIntel
Processor socketDiffersLGA 1155 (Socket H2)LGA 2011 (Socket R)
Compatible processor seriesDiffersIntel® Celeron®, Intel® Pentium®Intel® Core™ i7
Memory3 differ
Supported memory typesDDR3-SDRAMDDR3-SDRAM
Memory channelsDiffersDual-channelQuad-channel
ECC сompatibilityKnown for oneUnknown — not stated by the sourceECC & Non-ECC
Supported memory clock speedsDiffers1066,1333,1600,1800,2000,2200 MHz1066,1333,1600,1866,2133,2400 MHz
Maximum internal memoryDiffers16 GB64 GB
Number of memory slotsKnown for one2Unknown — not stated by the source
Memory slots typeKnown for oneDIMMUnknown — not stated by the source
Storage controllersidentical
RAID levelsKnown for oneUnknown — not stated by the source0, 1, 5, 10
Supported storage drive interfacesKnown for oneSATA II, SATA IIIUnknown — not stated by the source
Graphics1 differ
Parallel processing technology supportDiffersNot supported4-Way CrossFireX, 4-Way SLI
Internal I/O2 differ
USB 2.0 connectors22
USB 3.2 Gen 1 (3.1 Gen 1) connectors11
Number of SATA III connectorsDiffers16
Number of SATA II connectorsDiffers54
Number of Parallel ATA connectors00
ATX Power connector (24-pin)Known for oneUnknown — not stated by the sourceYes
CPU fan connectorYesYes
Number of chassis fan connectorsKnown for oneUnknown — not stated by the source4
Number of COM connectorsKnown for oneUnknown — not stated by the source1
TPM connectorKnown for oneUnknown — not stated by the sourceYes
Number of SATA connectorsKnown for one6Unknown — not stated by the source
Number of EATX power connectorsKnown for one1Unknown — not stated by the source
Rear panel I/O ports7 differ
USB 2.0 ports quantityDiffers410
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity22
Ethernet LAN (RJ-45) portsDiffers12
eSATA ports quantityDiffers02
PS/2 ports quantityDiffers21
Firewire (IEEE 1394) portsDiffers01
VGA (D-Sub) ports quantityDiffers10
DVI-D ports quantityDiffers10
Headphone outputsKnown for oneUnknown — not stated by the source1
Microphone inKnown for oneUnknown — not stated by the sourceYes
HDMI ports quantityKnown for one1Unknown — not stated by the source
Networkidentical
Ethernet LANKnown for oneUnknown — not stated by the sourceYes
Ethernet interface typeKnown for oneUnknown — not stated by the sourceGigabit Ethernet
LAN controllerKnown for oneUnknown — not stated by the sourceIntel I210
Wake-on-LAN readyKnown for oneUnknown — not stated by the sourceYes
Features2 differ
Component forPCPC
Motherboard form factorDiffersmicro ATXSSI CEB
Motherboard chipsetDiffersIntel B75Intel X79
Audio output channels7.1 channels7.1 channels
Motherboard chipset familyKnown for oneIntelUnknown — not stated by the source
Audio chipKnown for oneRealtek ALC887Unknown — not stated by the source
Power source typeKnown for oneATXUnknown — not stated by the source
Expansion slotsidentical
PCI Express x16 (Gen 3.x) slotsKnown for oneUnknown — not stated by the source7
PCI Express x1 slotsKnown for one2Unknown — not stated by the source
PCI Express x16 slotsKnown for one1Unknown — not stated by the source
PCI Express slots versionKnown for one2.0, 3.0Unknown — not stated by the source
PCI slotsKnown for one1Unknown — not stated by the source
BIOS2 differ
BIOS typeDiffersAMIUEFI AMI
BIOS memory sizeDiffers128 Mbit64 Mbit
ACPI version2.0a2.0a
Weight & dimensions2 differ
WidthDiffers244 mm304.8 mm
DepthDiffers178 mm266.7 mm
Packaging contentidentical
Cables includedKnown for oneUnknown — not stated by the sourceSATA

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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