Product comparison · 2 motherboards

GIGABYTE GA-P55-UD3R motherboard LGA 1156 (Socket H) ATX vs GIGABYTE GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX

30specifications compared
8differ
22identical
21known for one product only

Key differences

Number of SATA connectors
- GA-P55-UD3R motherboard LGA 1156 (Socket H) ATX:8
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:7
USB 2.0 ports quantity
- GA-P55-UD3R motherboard LGA 1156 (Socket H) ATX:10
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:9
eSATA ports quantity
- GA-P55-UD3R motherboard LGA 1156 (Socket H) ATX:2
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:1
Firewire (IEEE 1394) ports
- GA-P55-UD3R motherboard LGA 1156 (Socket H) ATX:0
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:1
Networking features
- GA-P55-UD3R motherboard LGA 1156 (Socket H) ATX:10/100/1000 Mbit
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:10/100/1000
Motherboard form factor
- GA-P55-UD3R motherboard LGA 1156 (Socket H) ATX:ATX
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:micro ATX
PCI Express x16 slots
- GA-P55-UD3R motherboard LGA 1156 (Socket H) ATX:2
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:1
Width
- GA-P55-UD3R motherboard LGA 1156 (Socket H) ATX:305 mm
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:244 mm

Side by side

Differences highlightedShow differences only

Comparison of GA-P55-UD3R, GA-P55M-UD4
51 specifications	A GIGABYTE GA-P55-UD3R motherboard LGA 1156 (Socket H) ATX Model GA-P55-UD3R View product	B GIGABYTE GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX Model GA-P55M-UD4 View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor socket	LGA 1156 (Socket H)	LGA 1156 (Socket H)
Memoryidentical
Number of memory slots	4	4
Memory voltage	1.5 V	1.5 V
ECC сompatibility	Non-ECC	Non-ECC
Maximum internal memoryKnown for one	Unknown — not stated by the source	16 GB
Internal I/O1 differ
Number of SATA connectorsDiffers	8	7
Number of Parallel ATA connectorsKnown for one	Unknown — not stated by the source	1
S/PDIF out connectorKnown for one	Unknown — not stated by the source	Yes
Front panel audio connector	Yes	Yes
CD/AUX audio in	Yes	Yes
ATX Power connector (24-pin)	Yes	Yes
Power fan connector	Yes	Yes
CPU fan connector	Yes	Yes
Chassis intrusion connector	Yes	Yes
Number of IEEE1394 connectorsKnown for one	Unknown — not stated by the source	1
USB 2.0 connectorsKnown for one	14	Unknown — not stated by the source
Rear panel I/O ports3 differ
USB 2.0 ports quantityDiffers	10	9
Ethernet LAN (RJ-45) ports	1	1
eSATA ports quantityDiffers	2	1
PS/2 ports quantity	1	1
Firewire (IEEE 1394) portsDiffers	0	1
VGA (D-Sub) ports quantity	0	0
HDMI ports quantity	0	0
DVI-D ports quantity	0	0
Headphone outputs	6	6
S/PDIF out port	Yes	Yes
Digital audio optical outKnown for one	Unknown — not stated by the source	1
Microphone inKnown for one	Yes	Unknown — not stated by the source
Parallel ports quantityKnown for one	1	Unknown — not stated by the source
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Network1 differ
Networking featuresDiffers	10/100/1000 Mbit	10/100/1000
Features1 differ
Motherboard form factorDiffers	ATX	micro ATX
Motherboard chipsetKnown for one	Unknown — not stated by the source	Intel® P55
Audio chipKnown for one	Unknown — not stated by the source	Realtek ALC889A
Audio output channels	7.1 channels	7.1 channels
Power source type	ATX	ATX
Compatible operating systemsKnown for one	Microsoft Windows 7/Vista/XP	Unknown — not stated by the source
Expansion slots1 differ
PCI Express x4 slotsKnown for one	Unknown — not stated by the source	1
PCI Express x8 slotsKnown for one	Unknown — not stated by the source	1
PCI Express x16 slotsDiffers	2	1
PCI slotsKnown for one	Unknown — not stated by the source	1
PCI Express x1 slotsKnown for one	1	Unknown — not stated by the source
Expansion slotsKnown for one	4 x PCI	Unknown — not stated by the source
Weight & dimensions1 differ
WidthDiffers	305 mm	244 mm
Depth	244 mm	244 mm
Other featuresidentical
S/PDIF in connectorKnown for one	Unknown — not stated by the source	Yes
Floppy disk drive connector	Yes	Yes
Storage controllersidentical
RAID levelsKnown for one	0, 1, 5, 10, JBOD	Unknown — not stated by the source
BIOSidentical
BIOS typeKnown for one	AWARD	Unknown — not stated by the source
Packaging contentidentical
Trial softwareKnown for one	Norton Internet Security	Unknown — not stated by the source

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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