Product comparison · 2 motherboards

GIGABYTE Z68X-UD3-B3 Intel Z68 LGA 1155 (Socket H2) ATX vs GIGABYTE Z68X-UD4-B3 Intel Z68 LGA 1155 (Socket H2) ATX

60specifications compared
3differ
57identical
1known for one product only

Key differences

The GIGABYTE Z68X-UD3-B3 Intel Z68 LGA 1155 (Socket H2) ATX has 1 more USB 2.0 ports quantity than the GIGABYTE Z68X-UD4-B3 Intel Z68 LGA 1155 (Socket H2) ATX (8 vs 7). The GIGABYTE Z68X-UD4-B3 Intel Z68 LGA 1155 (Socket H2) ATX has 2 more eSATA ports quantity than the GIGABYTE Z68X-UD3-B3 Intel Z68 LGA 1155 (Socket H2) ATX (2 vs 0). The GIGABYTE Z68X-UD3-B3 Intel Z68 LGA 1155 (Socket H2) ATX has 1 more PCI Express x1 slots than the GIGABYTE Z68X-UD4-B3 Intel Z68 LGA 1155 (Socket H2) ATX (3 vs 2).

USB 2.0 ports quantity
- Z68X-UD3-B3 Intel Z68 LGA 1155 (Socket H2) ATX:8
- Z68X-UD4-B3 Intel Z68 LGA 1155 (Socket H2) ATX:7
eSATA ports quantity
- Z68X-UD3-B3 Intel Z68 LGA 1155 (Socket H2) ATX:0
- Z68X-UD4-B3 Intel Z68 LGA 1155 (Socket H2) ATX:2
PCI Express x1 slots
- Z68X-UD3-B3 Intel Z68 LGA 1155 (Socket H2) ATX:3
- Z68X-UD4-B3 Intel Z68 LGA 1155 (Socket H2) ATX:2

Side by side

Differences highlightedShow differences only

Comparison of Z68X-UD3-B3, Z68X-UD4-B3
61 specifications	A GIGABYTE Z68X-UD3-B3 Intel Z68 LGA 1155 (Socket H2) ATX Model Z68X-UD3-B3 View product	B GIGABYTE Z68X-UD4-B3 Intel Z68 LGA 1155 (Socket H2) ATX Model Z68X-UD4-B3 View product
Processoridentical
Processor manufacturer	Intel	Intel
Processor socket	LGA 1155 (Socket H2)	LGA 1155 (Socket H2)
Compatible processor series	Intel® Core™ i3, Intel® Core™ i5, Intel® Core™ i7	Intel® Core™ i3, Intel® Core™ i5, Intel® Core™ i7
System bus rate	5 GT/s	5 GT/s
Memoryidentical
Number of memory slots	4	4
Memory channels	Dual-channel	Dual-channel
Memory voltage	1.5 V	1.5 V
ECC сompatibility	Non-ECC	Non-ECC
Supported memory clock speeds	1066,1200,1300,1333,1600,1800,1866,2133 MHz	1066,1200,1300,1333,1600,1800,1866,2133 MHz
Maximum internal memory	32 GB	32 GB
Storage controllersidentical
RAID levels	0, 1, 5, 10	0, 1, 5, 10
Graphicsidentical
On-board graphics card	No	No
Internal I/Oidentical
USB 2.0 connectors	3	3
USB 3.2 Gen 1 (3.1 Gen 1) connectors	1	1
Number of SATA III connectors	4	4
Number of SATA II connectors	4	4
Number of Parallel ATA connectors	0	0
S/PDIF out connector	Yes	Yes
Front panel audio connector	Yes	Yes
ATX Power connector (24-pin)	Yes	Yes
Power fan connector	Yes	Yes
CPU fan connector	Yes	Yes
Number of chassis fan connectors	2	2
Chassis intrusion connector	Yes	Yes
EPS power connector (8-pin)	Yes	Yes
Number of IEEE1394 connectors	1	1
TPM connector	Yes	Yes
Rear panel I/O ports2 differ
USB 2.0 ports quantityDiffers	8	7
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity	2	2
Ethernet LAN (RJ-45) ports	1	1
eSATA ports quantityDiffers	0	2
PS/2 ports quantity	1	1
Firewire (IEEE 1394) ports	1	1
VGA (D-Sub) ports quantity	0	0
HDMI ports quantity	0	0
DVI-D ports quantity	0	0
Headphone outputs	6	6
Microphone in	Yes	Yes
S/PDIF out port	Yes	Yes
Digital audio optical outKnown for one	Unknown — not stated by the source	1
Networkidentical
Ethernet interface type	Gigabit Ethernet	Gigabit Ethernet
LAN controller	Realtek RTL8111E	Realtek RTL8111E
Networking features	10/100/1000 Mbit/sec	10/100/1000 Mbit/sec
Featuresidentical
Component for	PC	PC
Motherboard form factor	ATX	ATX
Motherboard chipset	Intel Z68	Intel Z68
Audio chip	Realtek ALC889	Realtek ALC889
Audio output channels	7.1 channels	7.1 channels
Power source type	ATX	ATX
Compatible operating systems	Windows 7/Vista/XP	Windows 7/Vista/XP
Expansion slots1 differ
PCI Express x1 slotsDiffers	3	2
PCI Express x16 slots	2	2
PCI Express slots version	2.0	2.0
PCI slots	2	2
BIOSidentical
BIOS type	AWARD	AWARD
BIOS memory size	64 Mbit	64 Mbit
ACPI version	1.0b	1.0b
Weight & dimensionsidentical
Width	305 mm	305 mm
Depth	244 mm	244 mm
Packaging contentidentical
Drivers included	Yes	Yes
Other featuresidentical
Quick installation guide	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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