Page 1:Sandy Bridge-E And X79: The Best Intel Has To Offer
Page 2:ASRock X79 Extreme9
Page 3:X79 Extreme9 Firmware
Page 4:Asus P9X79 Deluxe
Page 5:Asus P9X79 WS
Page 6:Asus’ UEFI
Page 7:Gigabyte G1.Assassin2
Page 8:Gigabyte GA-X79-UD5
Page 9:Gigabyte’s UEFI
Page 10:Test Settings
Page 11:Benchmark Results: 3D Games
Page 12:Benchmark Results: Audio And Video Encoding
Page 13:Benchmark Results: Productivity
Page 14:Power, Heat, And Efficiency
Page 15:X79 Overclocking
Page 16:Which High-End X79 Motherboard Is Best?
The P9X79 Deluxe and P9X79 WS use the same UEFI GUI, and both have the same settings and ranges for performance tuning. Settings begin with overclocking modes that can be set to automatic, manual, or X.M.P.-based, with additional manual adjustment available.
Our XMP 2200 profile was treated as DDR3-2133 to stay within the BCLK limitations of Sandy Bridge-E processors. Asus adds CPU straps at stock (100 MHz), 125, 166, and 250 MHz to ease overclocking, even with partially-locked processors.
CPU core and CSA voltage can be adjusted in either offset or manual modes. Offset mode allows some of Intel’s power-saving methods to function in an overclocked system, but we chose manual mode to achieve the same fixed voltage across every motherboard during our overclocking comparison.
The same three DRAM reference voltage levels are repeated four times, once per channel, to allow mixed memory sets to be individually tuned.
We found that a CPU core voltage setting of 1.34 volts with Load-line Calibration at Ultra High provided the 1.35 V we sought at full CPU load.
Though power limits could be set numerically higher, we encountered a message that stated 255 W was the actual limit. We tried setting various super-high limits before finding that they weren’t beneficial at our moderate voltage levels.
Primary and secondary memory timings are grouped for all channels, but tertiary timings are broken into per-channel settings on both the Deluxe and WS version of Asus’ P9X79 series motherboards.
- Sandy Bridge-E And X79: The Best Intel Has To Offer
- ASRock X79 Extreme9
- X79 Extreme9 Firmware
- Asus P9X79 Deluxe
- Asus P9X79 WS
- Asus’ UEFI
- Gigabyte G1.Assassin2
- Gigabyte GA-X79-UD5
- Gigabyte’s UEFI
- Test Settings
- Benchmark Results: 3D Games
- Benchmark Results: Audio And Video Encoding
- Benchmark Results: Productivity
- Power, Heat, And Efficiency
- X79 Overclocking
- Which High-End X79 Motherboard Is Best?