Product comparison · 2 motherboards

GIGABYTE GA-8I955X Royal vs GIGABYTE GA-K8N Ultra-SLI

18specifications compared
9differ
9identical
12known for one product only

Key differences

Processor manufacturer
- GA-8I955X Royal:Intel
- GA-K8N Ultra-SLI:AMD
Processor socket
- GA-8I955X Royal:LGA 775 (Socket T)
- GA-K8N Ultra-SLI:Socket 939
USB 2.0 connectors
- GA-8I955X Royal:2
- GA-K8N Ultra-SLI:3
Number of SATA connectors
- GA-8I955X Royal:6
- GA-K8N Ultra-SLI:8
Number of IEEE1394 connectors
- GA-8I955X Royal:3
- GA-K8N Ultra-SLI:2
PS/2 ports quantity
- GA-8I955X Royal:2
- GA-K8N Ultra-SLI:1
Width
- GA-8I955X Royal:305 mm
- GA-K8N Ultra-SLI:30.5 mm
Depth
- GA-8I955X Royal:244 mm
- GA-K8N Ultra-SLI:24.4 mm

Side by side

Differences highlightedShow differences only

Comparison of GA-8I955X Royal, GA-K8N Ultra-SLI
30 specifications	A GIGABYTE GA-8I955X Royal View product	B GIGABYTE GA-K8N Ultra-SLI View product
Processor2 differ
Processor manufacturerDiffers	Intel	AMD
Processor socketDiffers	LGA 775 (Socket T)	Socket 939
Memoryidentical
Number of memory slots	4	4
Maximum internal memoryKnown for one	8 GB	Unknown — not stated by the source
Internal I/O3 differ
USB 2.0 connectorsDiffers	2	3
Number of SATA connectorsDiffers	6	8
CPU fan connector	Yes	Yes
Number of IEEE1394 connectorsDiffers	3	2
S/PDIF out connectorKnown for one	Unknown — not stated by the source	Yes
CD/AUX audio inKnown for one	Unknown — not stated by the source	Yes
Number of chassis fan connectorsKnown for one	Unknown — not stated by the source	3
Number of COM connectorsKnown for one	Unknown — not stated by the source	1
Rear panel I/O ports1 differ
USB 2.0 ports quantity	4	4
Ethernet LAN (RJ-45) ports	2	2
PS/2 ports quantityDiffers	2	1
Headphone outputs	1	1
S/PDIF out port	Yes	Yes
Parallel ports quantityKnown for one	1	Unknown — not stated by the source
Serial ports quantityKnown for one	1	Unknown — not stated by the source
Microphone inKnown for one	Unknown — not stated by the source	Yes
Networkidentical
Networking featuresKnown for one	Broadcom 5751*2	Unknown — not stated by the source
Featuresidentical
Motherboard form factor	ATX	ATX
Audio chipKnown for one	Realtek ALC882M	Unknown — not stated by the source
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	2 x PCI-Express X 16 slot 2 x PCI-Express X 1 2 x PCI
Weight & dimensions2 differ
WidthDiffers	305 mm	30.5 mm
DepthDiffers	244 mm	24.4 mm
Other featuresidentical
Dimensions (WxDxH)Known for one	305 x 244	Unknown — not stated by the source
Floppy disk drive connector	Yes	Yes
Manageability featuresKnown for one	Unknown — not stated by the source	NVIDIA SLI multi-GPU NVIDIA Firewall Norton Internet Security Xpress Installation Xpress Recovery Q-Flash @BIOS

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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