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Product comparison · 2 motherboards

ASUS Rampage III Formula vs MSI H55M-E21 motherboard Intel® H55 LGA 1156 (Socket H) micro ATX

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  • 31specifications compared
  • 20differ
  • 11identical
  • 32known for one product only

Key differences

  • Processor socket
    • Socket B (LGA 1366)
    • LGA 1156 (Socket H)
  • Number of memory slots
    • 6
    • 2
  • Memory channels
    • Triple-channel
    • Dual-channel
  • Supported memory clock speeds
    • 1333,1600,1800,2133,2200 MHz
    • 1066,1333,1600 MHz
  • Maximum internal memory
    • 24 GB
    • 8 GB
  • USB 2.0 connectors
    • 2
    • 3
  • USB 2.0 ports quantity
    • 7
    • 4
  • USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
    • 2
    • 0

Side by side

Differences highlightedShow differences only
63 specifications
A

ASUS

Rampage III FormulaView product
B

MSI

H55M-E21 motherboard Intel® H55 LGA 1156 (Socket H) micro ATX

Model H55M-E21

View product
Processor2 differ
Processor manufacturerIntelIntel
Processor socketDiffersSocket B (LGA 1366)LGA 1156 (Socket H)
Compatible processor seriesDiffersIntel® Core™ i7Intel® Core™ i3, Intel® Core™ i5
Memory4 differ
Supported memory typesKnown for oneDDR3-SDRAM
Number of memory slotsDiffers62
Memory channelsDiffersTriple-channelDual-channel
Memory voltageKnown for one1.5 V
Supported memory clock speedsDiffers1333,1600,1800,2133,2200 MHz1066,1333,1600 MHz
Maximum internal memoryDiffers24 GB8 GB
Supported memory module capacitiesKnown for one1GB, 2GB, 4GB
ECC сompatibilityKnown for oneNon-ECC
Storage controllersidentical
Supported storage drive interfacesKnown for oneSATA II
Graphicsidentical
Parallel processing technology supportKnown for oneNot supported
On-board graphics cardNoNo
Internal I/O1 differ
USB 2.0 connectorsDiffers23
Number of SATA II connectors66
Number of Parallel ATA connectorsKnown for one1
S/PDIF out connectorYesYes
Front panel audio connectorYesYes
ATX Power connector (24-pin)YesYes
CPU fan connectorKnown for oneYes
TPM connectorKnown for oneYes
Number of SATA III connectorsKnown for one2
Chassis intrusion connectorKnown for oneYes
Peripheral (Molex) power connectors (4-pin)Known for one1
EPS power connector (8-pin)Known for oneYes
Number of IEEE1394 connectorsKnown for one1
Rear panel I/O ports6 differ
USB 2.0 ports quantityDiffers74
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers20
Ethernet LAN (RJ-45) ports11
eSATA ports quantityDiffers20
PS/2 ports quantityDiffers12
Firewire (IEEE 1394) portsDiffers10
VGA (D-Sub) ports quantity00
HDMI ports quantityKnown for one1
HDMI versionKnown for one1.3
DVI-D ports quantityKnown for one1
DVI-I ports quantityKnown for one0
Headphone outputsDiffers51
Modem (RJ-11) portsKnown for one0
Microphone inKnown for oneYes
S/PDIF out portKnown for oneYes
Network2 differ
Ethernet interface typeDiffersGigabit EthernetFast Ethernet
LAN controllerDiffersIntel® 82567VRealtek RTL8105E
BluetoothKnown for oneNo
Networking featuresKnown for oneFast Ethernet
Features2 differ
Component forPCPC
Motherboard form factorDiffersATXmicro ATX
Motherboard chipset familyKnown for oneIntel
Motherboard chipsetDiffersIntel® X58Intel® H55
Audio chipKnown for oneRealtek ALC887
Audio output channels7.1 channels7.1 channels
Power source typeATXATX
Motherboard southbridgeKnown for oneIntel ICH10R
Expansion slots1 differ
PCI Express x1 slotsKnown for one2
PCI Express x16 slotsDiffers31
PCI slotsKnown for one1
PCI Express slots versionKnown for one2.0
Weight & dimensions2 differ
WidthDiffers305 mm210 mm
DepthDiffers244 mm245 mm
BIOSidentical
BIOS typeKnown for oneAMI
BIOS memory sizeKnown for one16 Mbit
ACPI versionKnown for one2.0

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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