Product comparison · 2 motherboards

GIGABYTE GA-870A-UD3 (REV. 2.0) vs GIGABYTE GA-A55M-S2HP AMD A75 micro ATX

41specifications compared
22differ
19identical
24known for one product only

Key differences

Compatible processor series
- GA-870A-UD3 (REV. 2.0):Athlon II
- GA-A55M-S2HP AMD A75 micro ATX:AMD A, AMD E2
Supported memory clock speeds
- GA-870A-UD3 (REV. 2.0):1066,1333,1866 MHz
- GA-A55M-S2HP AMD A75 micro ATX:1066,1333,1600,1866,2400 MHz
Maximum internal memory
- GA-870A-UD3 (REV. 2.0):16 GB
- GA-A55M-S2HP AMD A75 micro ATX:64 GB
Supported storage drive interfaces
- GA-870A-UD3 (REV. 2.0):SATA II, SATA III
- GA-A55M-S2HP AMD A75 micro ATX:SATA II
USB 2.0 connectors
- GA-870A-UD3 (REV. 2.0):2
- GA-A55M-S2HP AMD A75 micro ATX:3
Number of SATA III connectors
- GA-870A-UD3 (REV. 2.0):6
- GA-A55M-S2HP AMD A75 micro ATX:0
Number of SATA II connectors
- GA-870A-UD3 (REV. 2.0):2
- GA-A55M-S2HP AMD A75 micro ATX:6
Number of Parallel ATA connectors
- GA-870A-UD3 (REV. 2.0):1
- GA-A55M-S2HP AMD A75 micro ATX:0

Side by side

Differences highlightedShow differences only

Comparison of GA-870A-UD3 (REV. 2.0), GA-A55M-S2HP
65 specifications	A GIGABYTE GA-870A-UD3 (REV. 2.0)View product	B GIGABYTE GA-A55M-S2HP AMD A75 micro ATX Model GA-A55M-S2HP View product
Processor1 differ
Processor socketKnown for one	Socket AM3	Unknown — not stated by the source
Compatible processor seriesDiffers	Athlon II	AMD A, AMD E2
Memory2 differ
Number of memory slotsKnown for one	4	Unknown — not stated by the source
Supported memory clock speedsDiffers	1066,1333,1866 MHz	1066,1333,1600,1866,2400 MHz
Maximum internal memoryDiffers	16 GB	64 GB
Memory channelsKnown for one	Unknown — not stated by the source	Dual-channel
Storage controllers1 differ
Supported storage drive interfacesDiffers	SATA II, SATA III	SATA II
RAID levelsKnown for one	Unknown — not stated by the source	0, 1, 10, JBOD
Graphicsidentical
On-board graphics cardKnown for one	Unknown — not stated by the source	No
Internal I/O4 differ
USB 2.0 connectorsDiffers	2	3
Number of SATA III connectorsDiffers	6	0
Number of SATA II connectorsDiffers	2	6
Number of SATA connectorsKnown for one	8	Unknown — not stated by the source
Number of Parallel ATA connectorsDiffers	1	0
CPU fan connectorKnown for one	Yes	Unknown — not stated by the source
Number of IEEE1394 connectorsKnown for one	1	Unknown — not stated by the source
Parallel connectorKnown for one	Yes	Unknown — not stated by the source
USB 3.2 Gen 1 (3.1 Gen 1) connectorsKnown for one	Unknown — not stated by the source	0
TPM connectorKnown for one	Unknown — not stated by the source	Yes
Rear panel I/O ports7 differ
USB 2.0 ports quantityDiffers	8	6
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityDiffers	2	0
eSATA ports quantityDiffers	2	0
Firewire (IEEE 1394) portsDiffers	2	0
HDMI ports quantityDiffers	0	1
DVI-D ports quantityDiffers	0	1
Headphone outputsDiffers	2	1
VGA (D-Sub) ports quantityKnown for one	Unknown — not stated by the source	1
Network1 differ
Ethernet interface typeDiffers	Gigabit Ethernet	Fast Ethernet, Gigabit Ethernet
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
LAN controllerKnown for one	Unknown — not stated by the source	Realtek RTL8111E
Features2 differ
Motherboard form factorDiffers	ATX	micro ATX
Motherboard chipsetDiffers	AMD 870 (RX881)	AMD A75
Motherboard southbridgeKnown for one	AMD SB850	Unknown — not stated by the source
Compatible operating systemsKnown for one	Microsoft Windows 7/ Vista/ XP	Unknown — not stated by the source
Expansion slots2 differ
PCI Express x1 slotsDiffers	2	1
PCI slotsDiffers	3	1
PCI Express slots versionKnown for one	Unknown — not stated by the source	2.0
BIOSidentical
Clear CMOS buttonKnown for one	Yes	Unknown — not stated by the source
BIOS memory sizeKnown for one	Unknown — not stated by the source	64 Mbit
Clear CMOS jumperKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions2 differ
WidthDiffers	305 mm	244 mm
DepthDiffers	230 mm	244 mm
Packaging contentidentical
Bundled softwareKnown for one	Norton Internet Security	Unknown — not stated by the source
Drivers includedKnown for one	Unknown — not stated by the source	Yes
Other featuresidentical
S/PDIF in connectorKnown for one	Yes	Unknown — not stated by the source
S/PDIF in portKnown for one	Yes	Unknown — not stated by the source

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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