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Roundup: Four 790FX Socket AM3 Motherboards

Socket AM3 Motherboard Features Comparison

One of the great things about high-end AMD motherboards is that enthusiasts can get top features at mid-market prices. Today’s 790FX Socket AM3 models are all available for under $200, whereas similarly-featured LGA 1366 parts typically cost over $300.

790FX Socket AM3 Motherboard Features
 Asus M4A79T DeluxeDFI LANParty DK 790FXB-M3H5Gigabyte MA790FXT-UD5PMSI 790FX-GD70
NorthbridgeAMD 790FXAMD 790FXAMD 790FXAMD 790FX
SouthbridgeSB750SB750SB750SB750
Voltage Regulator10 Phases5 Phases10 Phases5 Phases
BIOS0902 (03-26-2009)306 (03-06-2009)F4 (03-13-2009)V1.1 (03-13-2009)
200 MHz Base Clock200.7200.0 (+0.0%)200.9 (+0.45%)200.0 (+0.0%)
Clock GeneratorICS 9LPRS477CKLICS 9LPRS477CKLICS 9LPRS477CKLRTM880N-793
Internal Interfaces
PCIe4 (2x x16 or 4x x8)3 (x16/x16/x4)2 (x16/x16)4 (2x x16 or 4x x8)
PCIe x10031
Legacy PCI2322
USB 2.03 (6 ports)3 (6 ports)2 (4 ports)2 (4 ports)
FireWire1011
Serial Port1111
Parallel Port0010
Floppy1111
Ultra ATA-1331 (2-drives)1 (2-drives)1 (2-drives)1 (2-drives)
SATA56108
4-Pin Fan1121
3-Pin Fan3534
FP-AudioYesYesYesYes
CD AudioYesYesYesYes
S/PDIF I/OOutput OnlyNoneBothOutput Only
Power ButtonYesYesYesYes
Reset ButtonYesYesYesYes
CLR_CMOS ButtonJumper OnlyJumper OnlyYesYes
Diagnostics PanelNone2-CharacterNone2-character
I/O Panel Connectors
PS/22222
USB 2.06687
FireWire1021
Network1122
eSATA1001
CLR_CMOS ButtonNoneBy JumperNoneNone
Digital Audio Out2222
Digital Audio In0000
Analog Audio6666
Mass Storage Controllers
Chipset SATA6x SATA 3.0 Gb/s6x SATA 3.0 Gb/s6x SATA 3.0 Gb/s6x SATA 3.0 Gb/s
Chipset RAID Modes0, 1, 5, 10, JBOD0, 1, 5, 10, JBOD0, 1, 5, 10, JBOD0, 1, 5, 10, JBOD
Add-In SATANoneNoneJMB363 PCIe to 2x JMB322 Hub, 4x SATA 3.0 Gb/s*JMB362/JMB322 1x eSATA 3.0 Gb/s 2x SATA 3.0 Gb/s*
Add-In RAID ModesNoneNone0, 1, JBOD0, 1, JBOD
FireWireVT6315N PCIe 2x 400 Mb/sNoneTSB43AB23 PCI 3x 400 Mb/sVT6315N PCIe 2x 400 Mb/s
Gigabit Ethernet
Primary LANRTL8112 PCIe88E8056 PCIeRTL8111DL PCIeRTL8111DL PCIe
Secondary LANNoneNoneRTL8111DL PCIeRTL8111DL PCIe
Audio
HD Audio CodecALC1200ALC885ALC889AALC889
Thomas Soderstrom
Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.