Product comparison · 2 motherboards

ASUS P7P55 LX vs ASUS P8B WS

44specifications compared
23differ
21identical
20known for one product only

Key differences

Processor socket
- P7P55 LX:LGA 1156 (Socket H)
- P8B WS:LGA 1155 (Socket H2)
ECC сompatibility
- P7P55 LX:Non-ECC
- P8B WS:ECC & Non-ECC
Supported memory clock speeds
- P7P55 LX:1066,1333,1600,2200 MHz
- P8B WS:1066,1333 MHz
Maximum internal memory
- P7P55 LX:16 GB
- P8B WS:32 GB
USB 2.0 connectors
- P7P55 LX:3
- P8B WS:4
Number of SATA II connectors
- P7P55 LX:6
- P8B WS:4
Number of Parallel ATA connectors
- P7P55 LX:1
- P8B WS:0
USB 2.0 ports quantity
- P7P55 LX:8
- P8B WS:6

Side by side

Differences highlightedShow differences only

Comparison of P7P55 LX, P8B WS
64 specifications	A ASUS P7P55 LX View product	B ASUS P8B WS View product
Processor2 differ
Processor manufacturer	Intel	Intel
Processor socketDiffers	LGA 1156 (Socket H)	LGA 1155 (Socket H2)
Compatible processor seriesDiffers	Intel® Core™ i5, Intel® Core™ i7	Intel® Core™ i3
Memory3 differ
Number of memory slots	4	4
Memory channels	Dual-channel	Dual-channel
ECC сompatibilityDiffers	Non-ECC	ECC & Non-ECC
Supported memory clock speedsDiffers	1066,1333,1600,2200 MHz	1066,1333 MHz
Maximum internal memoryDiffers	16 GB	32 GB
Storage controllersidentical
RAID levels	0, 1, 5, 10	0, 1, 5, 10
Graphicsidentical
Maximum graphics card memoryKnown for one	Unknown — not stated by the source	1748 MB
Parallel processing technology support	Quad-GPU CrossFireX	Quad-GPU CrossFireX
On-board graphics cardKnown for one	Unknown — not stated by the source	Yes
Internal I/O3 differ
USB 2.0 connectorsDiffers	3	4
Number of SATA III connectorsKnown for one	Unknown — not stated by the source	2
Number of SATA II connectorsDiffers	6	4
Number of Parallel ATA connectorsDiffers	1	0
S/PDIF out connector	Yes	Yes
Front panel audio connectorKnown for one	Unknown — not stated by the source	Yes
ATX Power connector (24-pin)	Yes	Yes
Number of EATX power connectorsKnown for one	Unknown — not stated by the source	1
Power fan connector	Yes	Yes
CPU fan connector	Yes	Yes
Number of COM connectors	1	1
Number of IEEE1394 connectorsKnown for one	Unknown — not stated by the source	1
TPM connectorKnown for one	Unknown — not stated by the source	Yes
Number of SATA connectorsKnown for one	6	Unknown — not stated by the source
CD/AUX audio inKnown for one	Yes	Unknown — not stated by the source
Number of chassis fan connectorsKnown for one	1	Unknown — not stated by the source
Chassis intrusion connectorKnown for one	Yes	Unknown — not stated by the source
Rear panel I/O ports6 differ
USB 2.0 ports quantityDiffers	8	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	0	2
Ethernet LAN (RJ-45) portsDiffers	1	2
eSATA ports quantity	0	0
PS/2 ports quantityDiffers	2	1
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	1
VGA (D-Sub) ports quantityDiffers	0	1
HDMI ports quantity	0	0
DVI-D ports quantity	0	0
DVI-I ports quantityKnown for one	Unknown — not stated by the source	1
Headphone outputsDiffers	1	6
S/PDIF out port	Yes	Yes
Digital audio optical outKnown for one	Unknown — not stated by the source	1
Microphone inKnown for one	Yes	Unknown — not stated by the source
Networkidentical
Ethernet interface type	Gigabit Ethernet	Gigabit Ethernet
LAN controllerKnown for one	Realtek RTL8112L	Unknown — not stated by the source
Features2 differ
Component forKnown for one	Unknown — not stated by the source	PC
Motherboard form factor	ATX	ATX
Motherboard chipsetDiffers	Intel® P55	Intel® C206
Audio chipDiffers	VIA VT1708S	Realtek ALC892
Audio output channels	7.1 channels	7.1 channels
Power source type	ATX	ATX
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows Server 2008 Enterprise 32/64-bit Windows Server 2003 R2 Enterprise 32/64-bit Windows 7 32/64-bit Windows Vista 32/64-bit Windows XP 32/64-bit
Expansion slots3 differ
PCI Express x1 slotsDiffers	2	1
PCI Express x16 slotsDiffers	1	4
PCI Express slots version	2.0	2.0
PCI slotsDiffers	3	1
PCI Express x4 slotsKnown for one	1	Unknown — not stated by the source
BIOS2 differ
BIOS typeDiffers	AMI	EFI
BIOS memory sizeDiffers	16 Mbit	32 Mbit
ACPI version	2.0a	2.0a
Weight & dimensions1 differ
Width	305 mm	305 mm
DepthDiffers	218 mm	245 mm
Other features1 differ
Controller interface typeKnown for one	Unknown — not stated by the source	Intel 82574L
Manageability featuresDiffers	WfM 2.0, DMI 2.0, WOL PME, WOR PME, PXE	WfM 2.0, DMI 2.0, WOL by PME, WOR by PME, PXE

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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