Product comparison · 2 motherboards

ASUS Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX vs GIGABYTE GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX

56specifications compared
17differ
39identical
28known for one product only

Key differences

The ASUS Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX has 2 more memory slots than the GIGABYTE GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX (4 vs 2). The ASUS Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX has 1 more USB 2.0 connectors than the GIGABYTE GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX (3 vs 2). The ASUS Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX has 4 more SATA III connectors than the GIGABYTE GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX (6 vs 2). Processor socket: LGA 1150 (Socket H3) on the ASUS Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX, LGA 1155 (Socket H2) on the GIGABYTE GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX. Supported storage drive interfaces: SATA, SATA II, SATA III on the ASUS Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX, SATA II, SATA III on the GIGABYTE GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX.

Processor socket
- Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX:LGA 1150 (Socket H3)
- GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX:LGA 1155 (Socket H2)
Number of memory slots
- Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX:4
- GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX:2
Supported storage drive interfaces
- Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX:SATA, SATA II, SATA III
- GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX:SATA II, SATA III
USB 2.0 connectors
- Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX:3
- GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX:2
Number of SATA III connectors
- Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX:6
- GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX:2
Number of SATA II connectors
- Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX:0
- GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX:4
USB 2.0 ports quantity
- Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX:4
- GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX:6
PS/2 ports quantity
- Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX:2
- GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX:1

Side by side

Differences highlightedShow differences only

Comparison of Z87-K, GA-H77M-HD3
84 specifications	A ASUS Z87-K Intel® Z87 LGA 1150 (Socket H3) ATX Model Z87-K View product	B GIGABYTE GA-H77M-HD3 motherboard Intel H77 LGA 1155 (Socket H2) micro ATX Model GA-H77M-HD3 View product
Processor1 differ
Processor manufacturer	Intel	Intel
Processor socketDiffers	LGA 1150 (Socket H3)	LGA 1155 (Socket H2)
Compatible processor series	Intel® Celeron®, Intel® Pentium®	Intel® Celeron®, Intel® Pentium®
Maximum number of SMP processorsKnown for one	1	Unknown — not stated by the source
Memory2 differ
Supported memory types	DDR3-SDRAM	DDR3-SDRAM
Number of memory slotsDiffers	4	2
Memory slots type	DIMM	DIMM
Memory channels	Dual-channel	Dual-channel
ECC сompatibility	Non-ECC	Non-ECC
Supported memory clock speedsDiffers	1333,1500,1600,1666,1800,1866,1900,2000,2100,2133,2200,2250,2400,2450,2600,2666,2800 MHz	1066,1333,1600 MHz
Maximum internal memory	32 GB	32 GB
Unbuffered memoryKnown for one	Yes	Unknown — not stated by the source
Memory voltageKnown for one	Unknown — not stated by the source	1.5 V
Storage controllers1 differ
Supported storage drive interfacesDiffers	SATA, SATA II, SATA III	SATA II, SATA III
RAID levels	0, 1, 5, 10	0, 1, 5, 10
Graphicsidentical
Parallel processing technology supportKnown for one	2-Way CrossFireX, Quad-GPU CrossFireX	Unknown — not stated by the source
On-board graphics card	Yes	Yes
Graphics card family	Intel	Intel
Graphics cardKnown for one	HD Graphics	Unknown — not stated by the source
Maximum resolutionKnown for one	4096 x 2160 pixels	Unknown — not stated by the source
HDCP	Yes	Yes
Discrete graphics supportKnown for one	Yes	Unknown — not stated by the source
DirectX versionKnown for one	Unknown — not stated by the source	11
Internal I/O3 differ
USB 2.0 connectorsDiffers	3	2
USB 3.2 Gen 1 (3.1 Gen 1) connectors	1	1
Number of SATA III connectorsDiffers	6	2
Number of SATA II connectorsDiffers	0	4
Number of Parallel ATA connectors	0	0
S/PDIF out connectorKnown for one	Yes	Unknown — not stated by the source
Front panel audio connector	Yes	Yes
ATX Power connector (24-pin)	Yes	Yes
CPU fan connector	Yes	Yes
Number of chassis fan connectorsKnown for one	2	Unknown — not stated by the source
Chassis intrusion connectorKnown for one	Yes	Unknown — not stated by the source
EPS power connector (8-pin)	Yes	Yes
Number of COM connectorsKnown for one	1	Unknown — not stated by the source
Number of SATA connectorsKnown for one	Unknown — not stated by the source	6
Parallel connectorKnown for one	Unknown — not stated by the source	Yes
Serial port headersKnown for one	Unknown — not stated by the source	1
Rear panel I/O ports3 differ
USB 2.0 ports quantityDiffers	4	6
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
HDMI versionKnown for one	1.4a	Unknown — not stated by the source
DVI-D ports quantity	1	1
Headphone outputsDiffers	3	1
Microphone in	Yes	Yes
S/PDIF out port	Yes	Yes
Networkidentical
Ethernet LAN	Yes	Yes
Ethernet interface type	Gigabit Ethernet	Gigabit Ethernet
Wi-FiKnown for one	No	Unknown — not stated by the source
BluetoothKnown for one	No	Unknown — not stated by the source
Features2 differ
Component for	PC	PC
Motherboard form factorDiffers	ATX	micro ATX
Motherboard chipset family	Intel	Intel
Motherboard chipsetDiffers	Intel® Z87	Intel H77
Audio chip	Realtek ALC887	Realtek ALC887
Audio output channels	7.1 channels	7.1 channels
PC health monitoringKnown for one	CPU, Fan, Temperature	Unknown — not stated by the source
Cooling typeKnown for one	Passive	Unknown — not stated by the source
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 slots2 differ
PCI Express x1 slots	2	2
PCI Express x16 slotsDiffers	2	1
PCI Express configurationsKnown for one	1x4, 1x16	Unknown — not stated by the source
PCI Express slots version	2.0, 3.0	2.0, 3.0
PCI slotsDiffers	3	1
BIOS1 differ
BIOS type	EFI AMI	EFI AMI
BIOS memory size	64 Mbit	64 Mbit
ACPI versionDiffers	4.0a	2.0a
Clear CMOS jumper	Yes	Yes
Processor special featuresidentical
Intel® High Definition Audio (Intel® HD Audio)Known for one	Yes	Unknown — not stated by the source
Processor with Intel Graphics Technology requiredKnown for one	Yes	Unknown — not stated by the source
Intel Rapid Storage TechnologyKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions2 differ
WidthDiffers	305 mm	244 mm
DepthDiffers	208 mm	174 mm
Packaging contentidentical
Cables includedKnown for one	SATA	Unknown — not stated by the source
Drivers includedKnown for one	Yes	Unknown — not stated by the source
Other featuresidentical
Dual Link DVIKnown for one	Yes	Unknown — not stated by the source
Quick installation guide	Yes	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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