Product comparison · 2 motherboards

ASUS A55BM-K AMD A55 FCH Socket FM2+ micro ATX vs ASUS A78M-A AMD A78 Socket FM2+ micro ATX

Key differences

Maximum internal memory
- A55BM-K AMD A55 FCH Socket FM2+ micro ATX:32 GB
- A78M-A AMD A78 Socket FM2+ micro ATX:64 GB
Supported storage drive interfaces
- A55BM-K AMD A55 FCH Socket FM2+ micro ATX:SATA II, SATA III
- A78M-A AMD A78 Socket FM2+ micro ATX:SATA III
Maximum resolution
- A55BM-K AMD A55 FCH Socket FM2+ micro ATX:2560 x 1600 pixels
- A78M-A AMD A78 Socket FM2+ micro ATX:4096 x 2160 pixels
USB 3.2 Gen 1 (3.1 Gen 1) connectors
- A55BM-K AMD A55 FCH Socket FM2+ micro ATX:0
- A78M-A AMD A78 Socket FM2+ micro ATX:1
Number of SATA III connectors
- A55BM-K AMD A55 FCH Socket FM2+ micro ATX:0
- A78M-A AMD A78 Socket FM2+ micro ATX:6
Number of SATA II connectors
- A55BM-K AMD A55 FCH Socket FM2+ micro ATX:4
- A78M-A AMD A78 Socket FM2+ micro ATX:0
USB 2.0 ports quantity
- A55BM-K AMD A55 FCH Socket FM2+ micro ATX:4
- A78M-A AMD A78 Socket FM2+ micro ATX:2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity
- A55BM-K AMD A55 FCH Socket FM2+ micro ATX:0
- A78M-A AMD A78 Socket FM2+ micro ATX:2

Differences highlightedShow differences only

Comparison of A55BM-K, A78M-A
56 specifications	A ASUS A55BM-K AMD A55 FCH Socket FM2+ micro ATX Model A55BM-K View product	B ASUS A78M-A AMD A78 Socket FM2+ micro ATX Model A78M-A View product
Memory1 differ
Number of memory slotsKnown for one	Unknown — not stated by the source	4
Maximum internal memoryDiffers	32 GB	64 GB
Storage controllers1 differ
Supported storage drive interfacesDiffers	SATA II, SATA III	SATA III
Graphics1 differ
Maximum resolutionDiffers	2560 x 1600 pixels	4096 x 2160 pixels
Internal I/O3 differ
USB 3.2 Gen 1 (3.1 Gen 1) connectorsDiffers	0	1
Number of SATA III connectorsDiffers	0	6
Number of SATA II connectorsDiffers	4	0
Front panel audio connectorKnown for one	Yes	Unknown — not stated by the source
Rear panel I/O ports3 differ
USB 2.0 ports quantityDiffers	4	2
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	0	2
HDMI ports quantityDiffers	0	1
Network1 differ
LAN controllerDiffers	Realtek 8111G	Realtek 8111GR
Features1 differ
Component forKnown for one	Unknown — not stated by the source	PC
Motherboard chipsetDiffers	AMD A55 FCH	AMD A78
Expansion slotsidentical
PCI Express x16 (Gen 3.x) slotsKnown for one	Unknown — not stated by the source	1
PCI Express x16 slotsKnown for one	1	Unknown — not stated by the source
Weight & dimensions2 differ
WidthDiffers	226 mm	236 mm
DepthDiffers	183 mm	208 mm

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.