Product comparison · 2 motherboards

ASUS P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX vs ASUS P8Z77 WS

79specifications compared
30differ
49identical
8known for one product only

Key differences

The ASUS P8Z77 WS has 2 more memory slots than the ASUS P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX (4 vs 2). The ASUS P8Z77 WS has 16 GB more maximum internal memory than the ASUS P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX (32 GB vs 16 GB). The ASUS P8Z77 WS has 2 more USB 2.0 connectors than the ASUS P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX (3 vs 1). ECC сompatibility: ECC & Non-ECC on the ASUS P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX, Non-ECC on the ASUS P8Z77 WS. Supported memory module capacities: 1GB, 2GB, 4GB, 8GB on the ASUS P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX, 16GB, 1GB, 2GB, 4GB, 8GB on the ASUS P8Z77 WS.

Number of memory slots
- P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX:2
- P8Z77 WS:4
ECC сompatibility
- P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX:ECC & Non-ECC
- P8Z77 WS:Non-ECC
Maximum internal memory
- P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX:16 GB
- P8Z77 WS:32 GB
Supported memory module capacities
- P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX:1GB, 2GB, 4GB, 8GB
- P8Z77 WS:16GB, 1GB, 2GB, 4GB, 8GB
Maximum resolution
- P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX:2048 x 1536 pixels
- P8Z77 WS:1920 x 1200 pixels
USB 2.0 connectors
- P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX:1
- P8Z77 WS:3
Number of SATA III connectors
- P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX:2
- P8Z77 WS:4
Number of chassis fan connectors
- P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX:1
- P8Z77 WS:5

Side by side

Differences highlightedShow differences only

Comparison of P8H77-I, P8Z77 WS
87 specifications	A ASUS P8H77-I Intel H77 LGA 1155 (Socket H2) mini ITX Model P8H77-I View product	B ASUS P8Z77 WS View product
Memory5 differ
Number of memory slotsDiffers	2	4
ECC сompatibilityDiffers	ECC & Non-ECC	Non-ECC
Supported memory clock speedsDiffers	1066,1333,1600,1800,1866,2000,2133,2200 MHz	1066,1333,1600,1800,1866,2000,2133,2200,2400,2600,2800 MHz
Maximum internal memoryDiffers	16 GB	32 GB
Supported memory module capacitiesDiffers	1GB, 2GB, 4GB, 8GB	16GB, 1GB, 2GB, 4GB, 8GB
Graphics2 differ
Parallel processing technology supportDiffers	LucidLogix Virtu	2-Way CrossFireX, 2-Way SLI, 3-Way CrossFireX, 3-Way SLI, 4-Way CrossFireX, 4-Way SLI, LucidLogix Virtu, Quad-GPU CrossFireX, Quad-GPU SLI
Maximum resolutionDiffers	2048 x 1536 pixels	1920 x 1200 pixels
Internal I/O3 differ
USB 2.0 connectorsDiffers	1	3
Number of SATA III connectorsDiffers	2	4
Number of chassis fan connectorsDiffers	1	5
Peripheral (Molex) power connectors (4-pin)Known for one	Unknown — not stated by the source	1
EPS power connector (8-pin)Known for one	Unknown — not stated by the source	Yes
Number of EATX power connectorsKnown for one	1	Unknown — not stated by the source
Rear panel I/O ports8 differ
USB 2.0 ports quantityDiffers	6	4
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	2	4
Ethernet LAN (RJ-45) portsDiffers	1	2
eSATA ports quantityDiffers	0	2
VGA (D-Sub) ports quantityDiffers	1	0
HDMI ports quantityDiffers	1	0
DVI-D ports quantityDiffers	1	0
DVI-I ports quantityKnown for one	Unknown — not stated by the source	1
Headphone outputsDiffers	3	6
Network3 differ
Ethernet interface typeDiffers	Gigabit Ethernet	Fast Ethernet, Gigabit Ethernet
LAN controllerDiffers	Realtek RTL8111F	Intel® 82574L
Networking featuresDiffers	Gigabit LAN	2 x Gigabit LAN
Features3 differ
Motherboard form factorDiffers	mini ITX	ATX
Motherboard chipsetDiffers	Intel H77	Intel Z77
Audio chipKnown for one	Unknown — not stated by the source	Realtek ALC898
PC health monitoringDiffers	CPU, Fan, Temperature	CPU, Fan, LED, Temperature
Expansion slots2 differ
PCI Express x1 slotsKnown for one	Unknown — not stated by the source	2
PCI Express x16 slotsDiffers	1	4
PCI Express configurationsDiffers	1x16	2x16, 4x8
BIOS1 differ
BIOS typeDiffers	AMI	UEFI
Weight & dimensions2 differ
WidthDiffers	170 mm	305 mm
DepthDiffers	170 mm	244 mm
Other features1 differ
Controller 2nd interface typeKnown for one	Unknown — not stated by the source	Marvell PCIe 9128, ASMedia PCIe SATA
Controller interface typeDiffers	Intel H77	Intel Z77
Back-to-BIOS buttonKnown 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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