Product comparison · 2 motherboards

GIGABYTE GA-K8NF-9-RH motherboard Socket 939 ATX vs GIGABYTE GA-M51GM-S2G motherboard Socket AM2 micro ATX

24specifications compared
8differ
16identical
9known for one product only

Key differences

Processor socket
- GA-K8NF-9-RH motherboard Socket 939 ATX:Socket 939
- GA-M51GM-S2G motherboard Socket AM2 micro ATX:Socket AM2
Maximum internal memory
- GA-K8NF-9-RH motherboard Socket 939 ATX:4 GB
- GA-M51GM-S2G motherboard Socket AM2 micro ATX:16 GB
USB 2.0 connectors
- GA-K8NF-9-RH motherboard Socket 939 ATX:3
- GA-M51GM-S2G motherboard Socket AM2 micro ATX:2
Motherboard form factor
- GA-K8NF-9-RH motherboard Socket 939 ATX:ATX
- GA-M51GM-S2G motherboard Socket AM2 micro ATX:micro ATX
Width
- GA-K8NF-9-RH motherboard Socket 939 ATX:305 mm
- GA-M51GM-S2G motherboard Socket AM2 micro ATX:244 mm
Depth
- GA-K8NF-9-RH motherboard Socket 939 ATX:210 mm
- GA-M51GM-S2G motherboard Socket AM2 micro ATX:244 mm
Audio output
- GA-K8NF-9-RH motherboard Socket 939 ATX:Realtek ALC850 Audio AC'97
- GA-M51GM-S2G motherboard Socket AM2 micro ATX:Realtek ALC883 Audio

Side by side

Differences highlightedShow differences only

Comparison of GA-K8NF-9-RH, GA-M51GM-S2G
33 specifications	A GIGABYTE GA-K8NF-9-RH motherboard Socket 939 ATX Model GA-K8NF-9-RH View product	B GIGABYTE GA-M51GM-S2G motherboard Socket AM2 micro ATX Model GA-M51GM-S2G View product
Processor1 differ
Processor manufacturer	AMD	AMD
Processor socketDiffers	Socket 939	Socket AM2
Memory1 differ
Number of memory slots	4	4
Maximum internal memoryDiffers	4 GB	16 GB
Internal I/O1 differ
USB 2.0 connectorsDiffers	3	2
Number of SATA connectors	4	4
Number of Parallel ATA connectors	2	2
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
CD/AUX audio in	Yes	Yes
ATX Power connector (24-pin)	Yes	Yes
CPU fan connectorKnown for one	Unknown — not stated by the source	Yes
Number of COM connectorsKnown for one	Unknown — not stated by the source	1
Number of IEEE1394 connectors	2	2
Number of chassis fan connectorsKnown for one	2	Unknown — not stated by the source
Rear panel I/O portsidentical
USB 2.0 ports quantity	4	4
Ethernet LAN (RJ-45) ports	1	1
PS/2 ports quantity	2	2
Firewire (IEEE 1394) portsKnown for one	Unknown — not stated by the source	1
VGA (D-Sub) ports quantityKnown for one	Unknown — not stated by the source	1
Headphone outputs	1	1
Microphone in	Yes	Yes
COM ports quantity	1	1
Parallel ports quantity	1	1
S/PDIF out portKnown for one	Yes	Unknown — not stated by the source
Networkidentical
LAN controllerKnown for one	Unknown — not stated by the source	Marvell 88E1116
Features1 differ
Motherboard form factorDiffers	ATX	micro ATX
Power source type	ATX	ATX
Expansion slots1 differ
Expansion slotsDiffers	1 x PCI-Express X 16 2 x PCI-Express X 1 3 x PCI (PCI 2.3)	1 x PCI Express x 16 1 x PCI Express x 1 2 x PCI
Weight & dimensions2 differ
WidthDiffers	305 mm	244 mm
DepthDiffers	210 mm	244 mm
Other features1 differ
Audio outputDiffers	Realtek ALC850 Audio AC'97	Realtek ALC883 Audio
Floppy disk drive connector	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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