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Product comparison · 2 motherboards

MSI CSM-B85M-E45 Intel® B85 LGA 1150 (Socket H3) micro ATX vs MSI H81-P33 Intel® H81 LGA 1150 (Socket H3) ATX

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  • 43specifications compared
  • 13differ
  • 30identical
  • 22known for one product only

Key differences

  • Number of memory slots
    • 4
    • 2
  • Maximum internal memory
    • 64 GB
    • 16 GB
  • USB 3.2 Gen 1 (3.1 Gen 1) connectors
    • 1
    • 0
  • Number of SATA III connectors
    • 4
    • 2
  • Number of chassis fan connectors
    • 2
    • 1
  • HDMI ports quantity
    • 1
    • 0
  • DVI-D ports quantity
    • 1
    • 0
  • Ethernet interface type
    • Gigabit Ethernet
    • Fast Ethernet

Side by side

Differences highlightedShow differences only
65 specifications
A

MSI

CSM-B85M-E45 Intel® B85 LGA 1150 (Socket H3) micro ATX

Model CSM-B85M-E45

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B

MSI

H81-P33 Intel® H81 LGA 1150 (Socket H3) ATX

Model H81-P33

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Processoridentical
Processor manufacturerIntelIntel
Processor socketLGA 1150 (Socket H3)LGA 1150 (Socket H3)
Compatible processor seriesIntel® Celeron®, Intel® Pentium®Intel® Celeron®, Intel® Pentium®
Memory2 differ
Supported memory typesDDR3-SDRAMDDR3-SDRAM
Number of memory slotsDiffers42
Memory slots typeDIMMDIMM
Memory channelsDual-channelDual-channel
Memory voltageKnown for one1.5 V
ECC сompatibilityKnown for oneNon-ECC
Supported memory clock speeds1066,1333,1600 MHz1066,1333,1600 MHz
Maximum internal memoryDiffers64 GB16 GB
Supported memory module capacitiesKnown for one16GB
Unbuffered memoryKnown for oneYes
Storage controllersidentical
Supported storage drive interfacesSATA II, SATA IIISATA II, SATA III
Graphicsidentical
Maximum graphics card memory1760 MB1760 MB
Graphics card familyKnown for oneIntel
Maximum resolutionKnown for one4096 x 2160 pixels
DirectX version1111
Discrete graphics supportKnown for oneYes
Internal I/O3 differ
USB 2.0 connectors22
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers10
Number of SATA III connectorsDiffers42
Number of SATA II connectors22
Number of Parallel ATA connectors00
Front panel audio connectorYesYes
ATX Power connector (24-pin)YesYes
CPU fan connectorKnown for oneYes
Number of chassis fan connectorsDiffers21
Parallel connectorYesYes
Serial port headersKnown for one1
TPM connectorYesYes
Chassis intrusion connectorKnown for oneYes
EPS power connector (8-pin)Known for oneYes
Rear panel I/O ports2 differ
USB 2.0 ports quantity44
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 quantityDiffers10
DVI-D ports quantityDiffers10
Headphone outputs11
Microphone inKnown for oneYes
DVI-I ports quantityKnown for one1
Network1 differ
Ethernet LANYesYes
Ethernet interface typeDiffersGigabit EthernetFast Ethernet
LAN controllerRealtek RTL8111GRealtek RTL8111G
Features2 differ
Component forPCPC
Motherboard form factorDiffersmicro ATXATX
Motherboard chipset familyIntelIntel
Motherboard chipsetDiffersIntel® B85Intel® H81
Audio output channelsKnown for one7.1 channels
Cooling typeKnown for onePassive
Power source typeATXATX
Windows operating systems supportedKnown for oneWindows 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 slots1 differ
PCI Express x1 (Gen 2.x) slotsKnown for one2
PCI Express x16 (Gen 3.x) slotsKnown for one1
PCI slotsDiffers13
PCI Express x1 slotsKnown for one2
PCI Express x16 (Gen 2.x) slotsKnown for one1
Weight & dimensions2 differ
WidthDiffers228 mm214 mm
DepthDiffers244 mm305 mm
Other featuresidentical
Parallel port via internal headerKnown for oneYes
Serial port via internal headerKnown 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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