Product comparison · 2 motherboards

ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX vs GIGABYTE GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX

39specifications compared
14differ
25identical
37known for one product only

Key differences

The GIGABYTE GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX has 2 more memory slots than the ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX (4 vs 2). The GIGABYTE GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX has 16 GB more maximum internal memory than the ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX (32 GB vs 16 GB). The GIGABYTE GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX has 1 more SATA III connectors than the ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX (2 vs 1). Supported memory clock speeds: 1066,1333,1600,1800,2000,2200 MHz on the ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX, 1066,1333,1600,2800 MHz on the GIGABYTE GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX. Parallel processing technology support: Not supported on the ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX, 2-Way CrossFireX on the GIGABYTE GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX.

Number of memory slots
- B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:2
- GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX:4
Maximum internal memory
- B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:16 GB
- GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX:32 GB
Parallel processing technology support
- B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:Not supported
- GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX:2-Way CrossFireX
Number of SATA III connectors
- B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:1
- GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX:2
Number of SATA II connectors
- B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:5
- GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX:4
PS/2 ports quantity
- B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:2
- GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX:1
Motherboard form factor
- B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:micro ATX
- GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX:ATX
Motherboard chipset
- B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX:Intel B75
- GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX:Intel® Z77 Express

Side by side

Differences highlightedShow differences only

Comparison of B75M-A, GA-Z77-HD4
76 specifications	A ASUS B75M-A Intel B75 LGA 1155 (Socket H2) micro ATX Model B75M-A View product	B GIGABYTE GA-Z77-HD4 motherboard Intel® Z77 Express LGA 1155 (Socket H2) ATX Model GA-Z77-HD4 View product
Processoridentical
Intel Core i3/i5/i7/i9 seriesKnown for one	Unknown — not stated by the source	i3-3xxx, i5-3xxx, i7-3xxx
Memory3 differ
Number of memory slotsDiffers	2	4
Memory voltageKnown for one	Unknown — not stated by the source	1.5 V
ECC сompatibilityKnown for one	Unknown — not stated by the source	Non-ECC
Supported memory clock speedsDiffers	1066,1333,1600,1800,2000,2200 MHz	1066,1333,1600,2800 MHz
Maximum internal memoryDiffers	16 GB	32 GB
Graphics1 differ
Parallel processing technology supportDiffers	Not supported	2-Way CrossFireX
Graphics card familyKnown for one	Unknown — not stated by the source	Intel
Maximum resolutionKnown for one	Unknown — not stated by the source	2560 x 1600 pixels
DirectX versionKnown for one	Unknown — not stated by the source	11
Discrete graphics supportKnown for one	Unknown — not stated by the source	Yes
Internal I/O2 differ
Number of SATA III connectorsDiffers	1	2
Number of SATA II connectorsDiffers	5	4
S/PDIF out connectorKnown for one	Unknown — not stated by the source	Yes
Front panel audio connectorKnown for one	Unknown — not stated by the source	Yes
ATX Power connector (24-pin)Known for one	Unknown — not stated by the source	Yes
Number of chassis fan connectorsKnown for one	Unknown — not stated by the source	3
EPS power connector (8-pin)Known for one	Unknown — not stated by the source	Yes
TPM connectorKnown for one	Unknown — not stated by the source	Yes
Number of SATA connectorsKnown for one	6	Unknown — not stated by the source
Number of EATX power connectorsKnown for one	1	Unknown — not stated by the source
Rear panel I/O ports1 differ
PS/2 ports quantityDiffers	2	1
DisplayPorts quantityKnown for one	Unknown — not stated by the source	1
Headphone outputsKnown for one	Unknown — not stated by the source	1
Microphone inKnown for one	Unknown — not stated by the source	Yes
S/PDIF out portKnown for one	Unknown — not stated by the source	Yes
Digital audio optical outKnown for one	Unknown — not stated by the source	1
Networkidentical
Ethernet LANKnown for one	Unknown — not stated by the source	Yes
Ethernet interface typeKnown for one	Unknown — not stated by the source	Gigabit Ethernet
Features2 differ
Motherboard form factorDiffers	micro ATX	ATX
Motherboard chipsetDiffers	Intel B75	Intel® Z77 Express
PC health monitoringKnown for one	Unknown — not stated by the source	CPU, Fan, Power supply, Temperature
Cooling typeKnown for one	Unknown — not stated by the source	Passive
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Windows 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 one	Unknown — not stated by the source	2
PCI Express x16 (Gen 2.x) slotsKnown for one	Unknown — not stated by the source	1
PCI Express x16 (Gen 3.x) slotsKnown for one	Unknown — not stated by the source	1
PCI slotsDiffers	1	2
PCI Express x1 slotsKnown for one	2	Unknown — not stated by the source
PCI Express x16 slotsKnown for one	1	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0, 3.0	Unknown — not stated by the source
BIOS2 differ
BIOS typeDiffers	AMI	EFI AMI
BIOS memory sizeDiffers	128 Mbit	64 Mbit
Clear CMOS jumperKnown for one	Unknown — not stated by the source	Yes
Processor special featuresidentical
Trusted Platform Module (TPM)Known for one	Unknown — not stated by the source	Yes
Weight & dimensions2 differ
WidthDiffers	244 mm	305 mm
DepthDiffers	178 mm	215 mm
Other featuresidentical
Dual Link DVIKnown for one	Unknown — not stated by the source	Yes
Number of processors supportedKnown for one	Unknown — not stated by the source	1
PCI Express slots quantityKnown for one	Unknown — not stated by the source	4
Serial port via internal headerKnown 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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