Product comparison · 2 motherboards

ASUS M3A76-CM Socket AM2 micro ATX vs ASUS M4A78-EM AMD

46specifications compared
9differ
37identical
5known for one product only

Key differences

Compatible processor series
- M3A76-CM Socket AM2 micro ATX:AMD Phenom, AMD Phenom FX
- M4A78-EM AMD:AMD Phenom X3, AMD Phenom X4
Maximum internal memory
- M3A76-CM Socket AM2 micro ATX:8 GB
- M4A78-EM AMD:16 GB
RAID levels
- M3A76-CM Socket AM2 micro ATX:0, 1, 0+1, JBOD
- M4A78-EM AMD:0, 1, 10, JBOD
Number of SATA connectors
- M3A76-CM Socket AM2 micro ATX:6
- M4A78-EM AMD:5
eSATA ports quantity
- M3A76-CM Socket AM2 micro ATX:0
- M4A78-EM AMD:1
HDMI ports quantity
- M3A76-CM Socket AM2 micro ATX:0
- M4A78-EM AMD:1
Controller 2nd interface type
- M3A76-CM Socket AM2 micro ATX:UltraDMA 133/100/66/33
- M4A78-EM AMD:UltraDMA 133/100
Graphics controller
- M3A76-CM Socket AM2 micro ATX:ATI Radeon 3000
- M4A78-EM AMD:ATI Radeon HD3200

Side by side

Differences highlightedShow differences only

Comparison of M3A76-CM, M4A78-EM
51 specifications	A ASUS M3A76-CM Socket AM2 micro ATX Model M3A76-CM View product	B ASUS M4A78-EM AMD Model M4A78-EM View product
Processor1 differ
Processor manufacturer	AMD	AMD
Processor socket	Socket AM2	Socket AM2
Compatible processor seriesDiffers	AMD Phenom, AMD Phenom FX	AMD Phenom X3, AMD Phenom X4
Memory1 differ
Number of memory slots	4	4
ECC сompatibility	ECC & Non-ECC	ECC & Non-ECC
Maximum internal memoryDiffers	8 GB	16 GB
Storage controllers1 differ
RAID levelsDiffers	0, 1, 0+1, JBOD	0, 1, 10, JBOD
Graphicsidentical
Maximum graphics card memory	256 MB	256 MB
Internal I/O1 differ
USB 2.0 connectors	3	3
Number of SATA connectorsDiffers	6	5
Number of Parallel ATA connectors	1	1
S/PDIF out connector	Yes	Yes
Front panel audio connector	Yes	Yes
CD/AUX audio in	Yes	Yes
ATX Power connector (24-pin)	Yes	Yes
Number of EATX power connectors	1	1
Power fan connectorKnown for one	Unknown — not stated by the source	Yes
CPU fan connector	Yes	Yes
Number of chassis fan connectors	1	1
Chassis intrusion connector	Yes	Yes
Number of COM connectors	1	1
Rear panel I/O ports2 differ
USB 2.0 ports quantity	6	6
Ethernet LAN (RJ-45) ports	1	1
eSATA ports quantityDiffers	0	1
PS/2 ports quantity	1	1
Firewire (IEEE 1394) ports	0	0
VGA (D-Sub) ports quantity	1	1
HDMI ports quantityDiffers	0	1
DVI-D ports quantity	1	1
Headphone outputs	1	1
Microphone in	Yes	Yes
S/PDIF out portKnown for one	Unknown — not stated by the source	Yes
Networkidentical
Networking features	Gigabit Ethernet	Gigabit Ethernet
LAN controllerKnown for one	Realtek RTL8111C	Unknown — not stated by the source
Featuresidentical
Motherboard form factor	micro ATX	micro ATX
Motherboard chipsetKnown for one	Unknown — not stated by the source	AMD 780G
Audio chipKnown for one	Unknown — not stated by the source	Realtek ALC887
Audio output channels	7.1 channels	7.1 channels
Power source type	ATX	ATX
Expansion slotsidentical
PCI Express x1 slots	1	1
PCI Express x16 slots	1	1
PCI slots	2	2
BIOSidentical
BIOS type	AMI	AMI
BIOS memory size	64 Mbit	64 Mbit
Weight & dimensionsidentical
Width	244 mm	244 mm
Depth	244 mm	244 mm
Packaging content1 differ
Drivers included	Yes	Yes
Bundled softwareDiffers	- ASUS PC Probe II - ASUS LiveUpdate	- ASUS PC Probe II - ASUS LiveUpdate Utility
Other features2 differ
Controller 2nd interface typeDiffers	UltraDMA 133/100/66/33	UltraDMA 133/100
Controller interface type	SATA 3 Gb/s	SATA 3 Gb/s
Graphics controllerDiffers	ATI Radeon 3000	ATI Radeon HD3200

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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