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
Processor manufacturer	Intel	Intel
Processor socket	LGA 1155 (Socket H2)	LGA 1155 (Socket H2)
Compatible processor series	Intel® Celeron®, Intel® Pentium®	Intel® Celeron®, Intel® Pentium®
Intel Core i3/i5/i7/i9 seriesKnown for one	Unknown — not stated by the source	i3-3xxx, i5-3xxx, i7-3xxx
Memory3 differ
Supported memory types	DDR3-SDRAM	DDR3-SDRAM
Number of memory slotsDiffers	2	4
Memory slots type	DIMM	DIMM
Memory channels	Dual-channel	Dual-channel
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
Storage controllersidentical
Supported storage drive interfaces	SATA II, SATA III	SATA II, SATA III
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
USB 2.0 connectors	2	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	1	1
Number of SATA III connectorsDiffers	1	2
Number of SATA II connectorsDiffers	5	4
Number of Parallel ATA connectors	0	0
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
CPU fan connector	Yes	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
USB 2.0 ports quantity	4	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
Ethernet LAN (RJ-45) ports	1	1
eSATA ports quantity	0	0
PS/2 ports quantityDiffers	2	1
Firewire (IEEE 1394) ports	0	0
VGA (D-Sub) ports quantity	1	1
HDMI ports quantity	1	1
DVI-D ports quantity	1	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
Component for	PC	PC
Motherboard form factorDiffers	micro ATX	ATX
Motherboard chipset family	Intel	Intel
Motherboard chipsetDiffers	Intel B75	Intel® Z77 Express
Audio chip	Realtek ALC887	Realtek ALC887
Audio output channels	7.1 channels	7.1 channels
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
Power source type	ATX	ATX
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
ACPI version	2.0a	2.0a
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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