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ASUS Sabertooth X99 Review


Asus Sabertooth X99 Testing:

Testing ASUS' TUF series motherboard the X99 Sabertooth will involve running it through OCC's test suite of benchmarks, which includes both synthetic benchmarks and real-world applications, to see how each of these products perform. The gaming tests will also consist of both synthetic benchmarks and actual gameplay, in which we can see if similarly prepared setups offer any performance advantages. The system will receive a fully updated, fresh install of Windows 7 Professional 64-bit edition, in addition to the latest drivers for each board and NVIDIA drivers for the NVIDIA GTX 770. In the past we had locked the clock speed on the processor to eliminate any easily controlled variables due to processor speed. However, there is a difference in how each manufacturer handles the CPU default and boost speeds, creating opportunity for one board to deliver a higher level of performance. This variable is a point of difference between boards. The majority of users will run the stock settings, making this point a valid concern, so we are changing up the test methods to capture this difference.

Testing Setup: Intel Socket 2011 V-3


Testing Setup: Intel Socket 2011


Comparison Motherboard:


Overclocked settings:


When it comes down to overclocking the CPU on a Socket 2011-V3 board, the same tricks and tools apply as on the last Gen X79 boards and Haswell-based processors. So far, the Core i7 5960X that I have has been able to reach from 4.54GHz to 4.6GHz depending in the board used. On the Sabertooth X99, I was able to reach 4.581GHz by manually tuning the voltages and LLC to level 7 in the UEFI BIOS. Manually tuning the processor is the most labor intensive of the ways to improve the performance of the installed components. From the EZ Mode section of the BIOS, you can use the EZ Tuning wizard. Here you just answer a few key questions about your usage scenario and cooling system, and the UEFI and motherboard does the rest.

Using the EZ Tune feature, the motherboard set a conservative 3.977GHz clock speed for the CPU core and roughly 2450MHz on the DDR4 memory. For little work on your part, you can get close to 500MHz more out of your chip, but with high speed memory you may need to set the XMP profiles for max speed. With the OC Tuner option, the board set a 3.875GHz (125MHz x 31) overclock when using the Bclock and ratio option, and a 3.9GHz clock speed (100MHz x 39) using just the Ratio option. Both solid overclocks that put the memory speed between 2400MHz and 2450MHz. Again, setting up the memory speed manually may be your best option when using high speed memory.

From an overall perspective, the motherboard did not offer any real surprises, as far as overclocking was concerned, to the levels I pushed my processor.





Maximum Core Clock Speed:

Each CPU has been tested for stability at the listed overclocked speeds. These clock speeds will represent the level of performance shown by the overclocked scores in the testing.




  • Scientific & Data:
  1. PCMark 8
  2. SiSoft Sandra 2014
  3. Cinebench R15
  4. X.264 5.1
  5. AIDA64 3.00
  6. CrystalDiskMark
  7. ATTO 2.47
  8. SATA Express Testing
  9. iPerf
  10. Rightmark Audio Analyzer
  • Gaming:
  1. 3DMark
  2. Batman: Arkham Origins
  3. Metro: Last Light

  1. ASUS Sabertooth X99: Introduction & Closer Look
  2. ASUS Sabertooth X99 Closer Look: The Board
  3. ASUS Sabertooth X99 Closer Look: Programs & Utilities
  4. ASUS Sabertooth X99 Closer Look: Programs & Tools Continued
  5. ASUS Sabertooth X99 Closer Look: The BIOS
  6. ASUS Sabertooth X99: Specifications & Features
  7. ASUS Sabertooth X99 Testing: Setup & Overclocking
  8. ASUS Sabertooth X99 Testing: PCMark 8, SiSoft Sandra
  9. ASUS Sabertooth X99 Testing: Cinebench R15, X.264, AIDA 64
  10. ASUS Sabertooth X99 Testing: Crystal Diskmark, Atto 2.47
  11. ASUS Sabertooth X99 Testing: iPerf, RMAA
  12. ASUS Sabertooth X99 Testing: Gaming
  13. ASUS Sabertooth X99 Testing: Conclusion
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