Product comparison · 2 motherboards

ASUS M4A77D AMD 770 Socket AM3 ATX vs GIGABYTE GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX

32specifications compared
14differ
18identical
23known for one product only

Key differences

The GIGABYTE GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX has 1 more SATA connectors than the ASUS M4A77D AMD 770 Socket AM3 ATX (7 vs 6). The GIGABYTE GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX has 3 more USB 2.0 ports quantity than the ASUS M4A77D AMD 770 Socket AM3 ATX (9 vs 6). The ASUS M4A77D AMD 770 Socket AM3 ATX has 1 more VGA (D-Sub) ports quantity than the GIGABYTE GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX (1 vs 0). Processor manufacturer: AMD on the ASUS M4A77D AMD 770 Socket AM3 ATX, Intel on the GIGABYTE GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX. Processor socket: Socket AM3 on the ASUS M4A77D AMD 770 Socket AM3 ATX, LGA 1156 (Socket H) on the GIGABYTE GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX.

Processor manufacturer
- M4A77D AMD 770 Socket AM3 ATX:AMD
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:Intel
Processor socket
- M4A77D AMD 770 Socket AM3 ATX:Socket AM3
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:LGA 1156 (Socket H)
ECC сompatibility
- M4A77D AMD 770 Socket AM3 ATX:ECC & Non-ECC
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:Non-ECC
Number of SATA connectors
- M4A77D AMD 770 Socket AM3 ATX:6
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:7
USB 2.0 ports quantity
- M4A77D AMD 770 Socket AM3 ATX:6
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:9
VGA (D-Sub) ports quantity
- M4A77D AMD 770 Socket AM3 ATX:1
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:0
Headphone outputs
- M4A77D AMD 770 Socket AM3 ATX:1
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:6
Networking features
- M4A77D AMD 770 Socket AM3 ATX:Gigabit LAN
- GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX:10/100/1000

Side by side

Differences highlightedShow differences only

Comparison of M4A77D, GA-P55M-UD4
55 specifications	A ASUS M4A77D AMD 770 Socket AM3 ATX Model M4A77D View product	B GIGABYTE GA-P55M-UD4 motherboard Intel® P55 LGA 1156 (Socket H) micro ATX Model GA-P55M-UD4 View product
Processor2 differ
Processor manufacturerDiffers	AMD	Intel
Processor socketDiffers	Socket AM3	LGA 1156 (Socket H)
Memory1 differ
ECC сompatibilityDiffers	ECC & Non-ECC	Non-ECC
Memory voltageKnown for one	Unknown — not stated by the source	1.5 V
Storage controllersidentical
RAID levelsKnown for one	0, 1, 0+1, JBOD	Unknown — not stated by the source
Internal I/O1 differ
USB 2.0 connectorsKnown for one	3	Unknown — not stated by the source
Number of SATA connectorsDiffers	6	7
Number of EATX power connectorsKnown for one	1	Unknown — not stated by the source
Number of chassis fan connectorsKnown for one	1	Unknown — not stated by the source
CD/AUX audio inKnown for one	Unknown — not stated by the source	Yes
Power fan connectorKnown for one	Unknown — not stated by the source	Yes
Number of IEEE1394 connectorsKnown for one	Unknown — not stated by the source	1
Rear panel I/O ports3 differ
USB 2.0 ports quantityDiffers	6	9
VGA (D-Sub) ports quantityDiffers	1	0
Headphone outputsDiffers	1	6
Microphone inKnown for one	Yes	Unknown — not stated by the source
COM ports quantityKnown for one	1	Unknown — not stated by the source
Parallel ports quantityKnown for one	1	Unknown — not stated by the source
Digital audio optical outKnown for one	Unknown — not stated by the source	1
Network1 differ
LAN controllerKnown for one	Realtek RTL8112L	Unknown — not stated by the source
Networking featuresDiffers	Gigabit LAN	10/100/1000
Features3 differ
Motherboard form factorDiffers	ATX	micro ATX
Motherboard chipsetDiffers	AMD 770	Intel® P55
Audio chipDiffers	VIA VT1818S	Realtek ALC889A
Expansion slots1 differ
PCI Express x1 slotsKnown for one	2	Unknown — not stated by the source
PCI slotsDiffers	3	1
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
BIOSidentical
BIOS typeKnown for one	AMI	Unknown — not stated by the source
BIOS memory sizeKnown for one	64 Mbit	Unknown — not stated by the source
Weight & dimensions2 differ
WidthDiffers	306 mm	244 mm
DepthDiffers	214 mm	244 mm
Packaging contentidentical
Drivers includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Controller 2nd interface typeKnown for one	UltraDMA 133/100/66	Unknown — not stated by the source
Controller interface typeKnown for one	SATA 3 Gb/s	Unknown — not stated by the source
S/PDIF in connectorKnown for one	Unknown — not stated by the source	Yes
Floppy disk drive connectorKnown for one	Unknown — not stated by the source	Yes

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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