Product comparison · 2 motherboards

GIGABYTE GA-H55-UD3H motherboard LGA 1156 (Socket H) ATX vs GIGABYTE GA-H55M-UD2H motherboard LGA 1156 (Socket H) ATX

30specifications compared
9differ
21identical
19known for one product only

Key differences

Number of SATA connectors
- GA-H55-UD3H motherboard LGA 1156 (Socket H) ATX:6
- GA-H55M-UD2H motherboard LGA 1156 (Socket H) ATX:5
USB 2.0 ports quantity
- GA-H55-UD3H motherboard LGA 1156 (Socket H) ATX:8
- GA-H55M-UD2H motherboard LGA 1156 (Socket H) ATX:6
eSATA ports quantity
- GA-H55-UD3H motherboard LGA 1156 (Socket H) ATX:0
- GA-H55M-UD2H motherboard LGA 1156 (Socket H) ATX:1
Firewire (IEEE 1394) ports
- GA-H55-UD3H motherboard LGA 1156 (Socket H) ATX:0
- GA-H55M-UD2H motherboard LGA 1156 (Socket H) ATX:1
Networking features
- GA-H55-UD3H motherboard LGA 1156 (Socket H) ATX:10/100/1000 Mbit/s
- GA-H55M-UD2H motherboard LGA 1156 (Socket H) ATX:10/100/1000 Mbps
PCI Express x16 slots
- GA-H55-UD3H motherboard LGA 1156 (Socket H) ATX:1
- GA-H55M-UD2H motherboard LGA 1156 (Socket H) ATX:2
PCI slots
- GA-H55-UD3H motherboard LGA 1156 (Socket H) ATX:4
- GA-H55M-UD2H motherboard LGA 1156 (Socket H) ATX:2
Width
- GA-H55-UD3H motherboard LGA 1156 (Socket H) ATX:305 mm
- GA-H55M-UD2H motherboard LGA 1156 (Socket H) ATX:244 mm

Side by side

Differences highlightedShow differences only

Comparison of GA-H55-UD3H, GA-H55M-UD2H
49 specifications	A GIGABYTE GA-H55-UD3H motherboard LGA 1156 (Socket H) ATX Model GA-H55-UD3H View product	B GIGABYTE GA-H55M-UD2H motherboard LGA 1156 (Socket H) ATX Model GA-H55M-UD2H View product
Memoryidentical
Maximum internal memoryKnown for one	16 GB	Unknown — not stated by the source
Memory voltageKnown for one	Unknown — not stated by the source	1.5 V
Internal I/O1 differ
USB 2.0 connectorsKnown for one	4	Unknown — not stated by the source
Number of SATA connectorsDiffers	6	5
Power fan connectorKnown for one	Yes	Unknown — not stated by the source
CPU fan connectorKnown for one	Yes	Unknown — not stated by the source
Chassis intrusion connectorKnown for one	Yes	Unknown — not stated by the source
Number of COM connectorsKnown for one	1	Unknown — not stated by the source
Number of IEEE1394 connectorsKnown for one	Unknown — not stated by the source	1
Rear panel I/O ports3 differ
USB 2.0 ports quantityDiffers	8	6
eSATA ports quantityDiffers	0	1
Firewire (IEEE 1394) portsDiffers	0	1
Headphone outputsKnown for one	1	Unknown — not stated by the source
S/PDIF out portKnown for one	Yes	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	10/100/1000 Mbit/s	10/100/1000 Mbps
Featuresidentical
Compatible operating systemsKnown for one	Microsoft Windows 7/Vista/XP	Unknown — not stated by the source
Expansion slots2 differ
PCI Express x1 slotsKnown for one	1	Unknown — not stated by the source
PCI Express x4 slotsKnown for one	1	Unknown — not stated by the source
PCI Express x16 slotsDiffers	1	2
PCI slotsDiffers	4	2
BIOSidentical
ACPI versionKnown for one	1.0b	Unknown — not stated by the source
Weight & dimensions2 differ
WidthDiffers	305 mm	244 mm
DepthDiffers	210 mm	230 mm
Other featuresidentical
S/PDIF in portKnown for one	Yes	Unknown — not stated by the source
Controller 2nd interface typeKnown for one	ATA-133/100/66/33	Unknown — not stated by the source
Controller interface typeKnown for one	SATA2	Unknown — not stated by the source
S/PDIF in connectorKnown for one	Unknown — not stated by the source	Yes
Packaging contentidentical
Bundled softwareKnown for one	Unknown — not stated by the source	Norton Internet Security

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