Asus P9X79 Pro review

It may not have the looks, but it's got it where it counts

TODO alt text


  • PCIe 3.0 suuport
  • Eight DIMM slots
  • Good UEFI BIOS
  • Overclocking potential
  • USB 3.0 boost technology
  • USB BIOS Flashback


  • Still a bit expensive

Having recently looked at the Sabretooth X79, it's now the turn of a motherboard a little lower down the food chain, the Asus P9X79 Pro.

This board is lower down in relative terms only though, as the X79 is a high-end, enthusiast chipset. That means any motherboard featuring this chipset isn't going to be exactly cheap.

The P9X79 Pro is about a tenner cheaper than the Sabretooth X79. And, you'd better sit down for this, nearly a hundred quid cheaper than Asus's flagship Republic of Gamers X79.

The P9X79 Pro is still packed with up-to-the-minute features, such as PCIe 3.0 support, USB 3.0 boost technology, SSD caching, Asus's new USB BIOS Flashback, an updated UEFI BIOS with new features and eSATA 6Gbps. So in fact you're getting an awful lot of board for that price tag and with a fair degree of future-proofing built in as a bonus.

The new processors feature a quad-channel memory controller, which goes some way to explaining the crazy physical size of the chip and its corresponding socket on the board. Small it ain't and while some companies are happy to stick with four DIMM slots, Asus being Asus has gone the whole hog and, as it did with the Sabertooth X79, the P9X79 Pro sports a complete set of eight DIMM slots, two per channel. In theory, that means you can load up the board with a maximum of 64GB of memory.

In performance terms too the P9X79 Pro impresses. The Sabertooth X79 may be seen as the home overclocker's board of choice, but the P9X79 Pro seems just as capable of hitting 4.8GHz. An excellent result considering the Sabertooth only managed another 100MHz more. It may not have the looks, but it's still got the performance chops.

TechRadar Labs

tech labs

CPU rendering performance
Cinebench R11.5: Index: Higher is better
Asus P9X79 PRO: 10.98
Asus Sabretooth X79: 10.54

CPU HD encoding performance
X264 v4: Frames per second: Higher is better
Asus P9X79 PRO: 57
Asus Sabretooth X79: 49

Memory bandwidth performance
Sisoft Sandra: Gigabytes per second: Higher is better
Asus P9X79 PRO: 39
Asus Sabretooth X79: 31

Overclocking performance
Core i7 3930K: Gigahertz: Higher is better
Asus P9X79 PRO: 4.8GHz
Asus Sabretooth X79: 4.9GHz


When the UEFI BIOS first made an appearance, Asus was quick to use the new technology to make life a lot easier when tweaking BIOS settings and it hasn't been sitting on its laurels. The latest version of the BIOS now includes a snapshot key (F12) to allow you to drop the BIOS settings on a USB key for either backing up or sharing, and a shortcut to allow access to the most oft-used information.

Also new is the USB BIOS Flashback technology, a neat way to flash the BIOS using a USB key and a special button on the rear I/O panel while just using ATX standby power.

The board also supports the very latest in USB 3.0 technology in the shape of the USB Attached SCSI Protocol (UASP). This simple new technological twist on the specifications enables the board to boost USB 3.0 speed by 170 per cent.

So, yes the board is still expensive but then it's loaded to the gills with new and future-proofed technologies. Whether you're going to use them all is a different matter.

We think Asus's take on the UEFI BIOS is something that other board manufacturers should really take note of, and this latest version is leaving them trailing even further behind.

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Tech Specs

Product TypeDesktop Motherboard
Chipset ManufacturerIntel
Chipset ModelX79 Express
Multi GPU SupportedSLI, CrossFireX
Onboard VideoNo
Number of PCI Express x16 Slots4
Memory TechnologyDDR3 SDRAM
Processor SocketSocket R LGA-2011
Brand NameAsus
Form FactorATX
Processor SupportedCore i7
Total Processor Supported1
Maximum Memory64 GB
64-bit ProcessingYes
Number of Memory Slots8
Audio Channels7.1
Gigabit EthernetYes
Number of SATA Interfaces8
RAID SupportedYes
Number of Total Expansion Slots6
Number of Network (RJ-45) Ports1
Network (RJ-45)Yes
Total Number of USB Ports10
Number of USB 3.0 Ports4
Total Number of Onboard USB Ports8
Number of Onboard USB 2.0 Ports6
PCI Express StandardPCI Express 3.0, PCI Express 2.0
Total Number of PCI Express Slots6
Memory Form FactorDIMM
Number of eSATA Ports2
Processor TechnologyTurbo Boost Technology 2.0, Virtualization Technology, Enhanced SpeedStep Technology, Hyper-Threading Technology
Width304.8 mm
Depth243.8 mm
ManufacturerASUS Computer International
Product ModelP9X79 PRO
Product NameP9X79 PRO Desktop Motherboard
Controller TypeSerial ATA/300, Serial ATA/600
Manufacturer Part NumberP9X79 PRO
Manufacturer Website Address
Marketing Information

This motherboard supports the latest 2nd Generation Intel Core i7 Processor family for the LGA 2011 Socket, with memory and PCI Express controllers integrated to quad-channel (8 DIMMs) DDR3 memory and 40 PCI Express 3.0 lanes. This provides great graphics performance. 2nd Generation Intel Core i7 Processor family for the LGA 2011 Socket is one of the most powerful and energy efficient CPUs in the world.