Intel X99 motherboard review part 2: 20 boards tested

New Asrock and ASUS boards have entered the arena for X99 boards

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Introduction

At the end of August Intel introduced the Haswell E processors and we published a comparative test of 15 Intel X99 motherboards. Since our last test we have received another few new motherboards and we have retested some boards that did not perform optimally in our original test. In this update we introduce the new boards on the market and show the updated test results of all 20 motherboards.


We will not repeat everything that we have already published in this update. If you want to know everything about the X99 chipset please read our original review. Should you not have done so, it is also worthwhile to check out our extensive review on the Intel Core i7 5960X / 5930K en 5820K Haswell-E processors.

In this review we look at five motherboards that were not in our original test. ASUS sent us their entry model  X99-A, the slightly higher positioned X99-Pro and the workstation motherboard X99-E WS. ASRock shipped the X99 Extreme 6 and the gaming focussed X99X Killer, as you can see a bit further on in this review these two boards are virtually identical.

In our original review we noticed that especially the Gigabyte motherboards offered very poor performance. The BIOS developers at Gigabyte have been very busy it seems as most problems look like they have been solved. Gigabyte sent us three new samples of these boards and we have retested the  X99-UD4, X99-UD5 and the X99-Gaming 5.

The table below shows our list of 20 Intel X99 motherboards that we have tested up till now. The new boards in the test are printed in bold.

MotherboardForm Factor
ASRock X99 Extreme4 ATX
ASRock X99 Extreme6 ATX
ASRock X99 WS Extended ATX
ASRock X99M Killer Micro ATX
ASRock X99X Killer ATX
ASUS X99-A ATX
ASUS X99-Pro ATX
ASUS X99-Deluxe ATX
ASUS X99-E WS Extended ATX
ASUS Rampage V Extreme Extended ATX
Gigabyte X99-UD3 ATX
Gigabyte X99-UD4 ATX
Gigabyte X99-UD5 WiFi Extended ATX
Gigabyte X99-UD7 WiFi Extended ATX
Gigabyte X99-Gaming 5 ATX
Gigabyte X99-Gaming G1 WiFi Extended ATX
Gigabyte X99-SOC Force Extended ATX
MSI X99S SLI Plus ATX
MSI X99S Gaming 9 AC Extended ATX
MSI X99S XPower Extended ATX

New setup

As in part 1 of our X99 roundup we do not go into detail on every motherboard that we have tested, but focus on the most important features of the new chipset that are implemented on the respective motherboards. As usual you can find our testresults at the end of the review, including several benchmarks, power use and a onboard sound test.

  • ASRock Fatal1ty X99M Killer
  • ASRock Fatal1ty X99X Killer
  • ASRock X99 Extreme4
  • ASRock X99 Extreme6
  • ASRock X99 WS
  • ASUS Rampage V Extreme
  • ASUS X99-A
  • ASUS X99-Deluxe
  • ASUS X99-E WS
  • ASUS X99-Pro
  • Gigabyte X99 Gaming 5
  • Gigabyte X99 Gaming G1 WiFi
  • Gigabyte X99-SOC Force
  • Gigabyte X99-UD3
  • Gigabyte X99-UD4
  • Gigabyte X99-UD5 WiFi
  • Gigabyte X99-UD7 WiFi
  • MSI X99S Gaming 9 AC
  • MSI X99S SLI Plus
  • MSI X99S XPower AC


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twenty products discussed in this review

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