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Product comparison · 2 motherboards

ASUS A55BM-PLUS/CSM AMD A55 FCH Socket FM2+ micro ATX vs ASUS B85M-GAMER Intel® B85 LGA 1150 (Socket H3) micro ATX

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  • 49specifications compared
  • 22differ
  • 27identical
  • 22known for one product only

Key differences

  • Processor manufacturer
    • AMD
    • Intel
  • Processor socket
    • Socket FM2+
    • LGA 1150 (Socket H3)
  • Maximum internal memory
    • 64 GB
    • 32 GB
  • Supported storage drive interfaces
    • SATA II
    • SATA II, SATA III
  • USB 2.0 connectors
    • 6
    • 2
  • USB 3.2 Gen 1 (3.1 Gen 1) connectors
    • 0
    • 1
  • Number of SATA III connectors
    • 0
    • 4
  • Number of SATA II connectors
    • 6
    • 2

Side by side

Differences highlightedShow differences only
71 specifications
A

ASUS

A55BM-PLUS/CSM AMD A55 FCH Socket FM2+ micro ATX

Model A55BM-PLUS/CSM

View product
B

ASUS

B85M-GAMER Intel® B85 LGA 1150 (Socket H3) micro ATX

Model B85M-GAMER

View product
Processor3 differ
Processor manufacturerDiffersAMDIntel
Processor socketDiffersSocket FM2+LGA 1150 (Socket H3)
Compatible processor seriesDiffersAMD AIntel® Celeron®, Intel® Pentium®
Maximum number of SMP processorsKnown for one1
Intel Core i3/i5/i7/i9 seriesKnown for onei3-4xxx, i5-4xxx, i7-4xxx
Memory2 differ
Supported memory typesDDR3-SDRAMDDR3-SDRAM
Number of memory slots44
Memory slots typeDIMMDIMM
Memory channelsDual-channelDual-channel
ECC сompatibilityNon-ECCNon-ECC
Supported memory clock speedsDiffers1333,1600,1866,2133,2200,2250,2400 MHz1066,1333,1600 MHz
Maximum internal memoryDiffers64 GB32 GB
Unbuffered memoryYesYes
Supported memory module capacitiesKnown for one8GB
Storage controllers1 differ
Supported storage drive interfacesDiffersSATA IISATA II, SATA III
RAID levelsKnown for one0, 1, 10, JBOD
Graphicsidentical
Parallel processing technology supportKnown for one2-Way CrossFireX
Graphics card familyKnown for oneAMD
Maximum resolution4096 x 2160 pixels4096 x 2160 pixels
Maximum graphics card memoryKnown for one1024 MB
Internal I/O6 differ
USB 2.0 connectorsDiffers62
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers01
Number of SATA III connectorsDiffers04
Number of SATA II connectorsDiffers62
Number of Parallel ATA connectorsDiffers10
S/PDIF out connectorKnown for oneYes
Front panel audio connectorKnown for oneYes
ATX Power connector (24-pin)YesYes
Number of EATX power connectors11
CPU fan connectorYesYes
Number of chassis fan connectorsDiffers21
Chassis intrusion connectorYesYes
Peripheral (Molex) power connectors (4-pin)Known for one1
Number of COM connectors11
Rear panel I/O ports2 differ
USB 2.0 ports quantityDiffers42
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity22
Ethernet LAN (RJ-45) ports11
eSATA ports quantity00
PS/2 ports quantity22
Firewire (IEEE 1394) ports00
VGA (D-Sub) ports quantity11
HDMI ports quantity11
DVI-D ports quantityDiffers10
Headphone outputsKnown for one1
Microphone inKnown for oneYes
Network1 differ
Ethernet LANYesYes
Ethernet interface typeDiffersFast Ethernet, Gigabit EthernetGigabit Ethernet
LAN controllerKnown for oneRealtek RTL8111G
Features3 differ
Component forPCPC
Motherboard form factormicro ATXmicro ATX
Motherboard chipset familyDiffersAMDIntel
Motherboard chipsetDiffersAMD A55 FCHIntel® B85
Audio output channels7.1 channels7.1 channels
Cooling typeKnown for onePassive
Power source typeATXATX
Windows operating systems supportedDiffersWindows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, WinWindows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Win
Expansion slotsidentical
PCI Express x1 (Gen 2.x) slotsKnown for one1
PCI Express x16 (Gen 2.x) slotsKnown for one1
PCI Express x16 (Gen 3.x) slotsKnown for one1
PCI slotsKnown for one1
PCI Express x1 slotsKnown for one2
PCI Express x16 slotsKnown for one1
BIOS2 differ
BIOS typeDiffersUEFI AMIUEFI
BIOS memory size64 Mbit64 Mbit
ACPI versionDiffers2.0a4.0a
Clear CMOS jumperYesYes
Weight & dimensions2 differ
WidthDiffers244 mm233 mm
DepthDiffers234 mm206 mm
Packaging contentidentical
Cables includedSATASATA
Drivers includedKnown for oneYes
Other featuresidentical
Quick installation guideKnown for oneYes

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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