Are you struggling to find the best motherboard for your Intel Core I5 6600K Processor? If you are, don’t worry. In this article, we are going to provide you various motherboards available for your processor, and we will also rate them according to their performance, you could also check out our review on the I7 6700K as it is also a great purchase and it’s also from the same generation of Intel CPUs. So, let’s start.


Basically, you need a Z170 Motherboard which is suitable for the Core I5 6600K Processor. After doing a lot of research, we have found 4 suitable choices in the Z170 section, and here they are.

Our list of the Best Motherboard for I5 6600K


ASRock ATX DDR4 Motherboards Z170 EXTREME4+ASUS Dual DDR4 3400 Intel LGA1151 SATA (6Gb/s) Motherboard (Z170 PRO Gaming)Gigabyte LGA1151 Intel Z170 ATX DDR4 Motherboards GA-Z170X-Gaming 3MSI Performance Gaming Intel Z170A LGA 1151 DDR4 USB 3.1 ATX Motherboard (Z170A Gaming Pro Carbon) 
Features the 1151 Socket
Holds 4 RAM Sticks up to 3200Mhz (Overclocked)
Max RAM Capacity 64GB
Slots: 3x PCI-Express 3.0 x16 Slots (single at x16, dual at x8/x8, triple at x8/x8/x4), 3x PCI Express 3.0 x1 Slots (Flexible PCIe)
SATA: 6x SATA3 Ports, Support RAID 0, 1, 5, 10, 3x SATA Express Ports
Audio: Realtek ALC1150 7.1-Channel High Definition Audio CODEC
Features the 1151 Socket
Supports Dual DDR4 RAM (Overclocked)
Intel Gigabit Ethernet, LANGuard & GameFirst III: Top-speed protected networking, RAM Cache
USB 3.1 Type A/C & M.2
Features the 1151 Socket
Supports 4 RAM Sticks, Dual Channel
Slots: 1x PCI-Express 3.0 x16 Slots, 1x PCI-Express 3.0 x8, 1x PCI-Express 3.0 x4, 2x PCI-Express 3.0 x1
Audio: Realtek ALC1150 7.1-Channel High Definition Audio CODEC
Storage Interface: 3 x SATA Express, 6 x SATA 3, 2 x M.2
USB: 1 x USB 3.1 (A+C) ports; 7 x USB 3.0 ports; 6 x USB 2.0 ports
Features the 1151 Socket
Supports 4 RAM Sticks up to 3600Mhz (Overclocked)
RAM Max Capacity of 64GB
Slots: 3x PCI-Express 3.0 x16 Slots, 4x PCI-Express 3.0 x1 Slots
Multi-Graphics: Supports AMD 3-Way CrossFireX and NVIDIA 2-Way SLI Technology
SATA: 6x SATA3 Ports (2-ports reserved for SATA Express Port), Support RAID 0, 1, 5, 10; 1x SATA Express Ports (PCI-Express 3.0 x2)
M.2: 1x M.2 Ports, Support SATA3 & 4.2/ 6/ 8cm Length M.2 SSD Cards


ASRock ATX DDR4 Motherboards Z170 EXTREME4+

If you want to choose the best performing motherboard in this section, this is it.

It has 4x DDR4 RAM slots with the overall maximum capacity of 64GB. It also contains 3x PCI-Express 3.0 each having 16x slots. If you like listening to music or gaming, you’ll love the 7.1 High definition sound coming from the Realtek ALC1150 sound card, it is fantastic, it provides support to even Premium Blu-ray audio. Regarding storage, it has 6X SATA 600 slots and 3X SATA Express slots.

Now, since you have a K series processor, it might be tempting for you to do overclocking with your processor, The ASRock Z170 is without a doubt, a beast, unbeatable in almost every single aspect, however, it excels at overclocking with 12 phases, higher than any motherboard in this section.



Another motherboard for gamers in this series, the Asus Z170 Pro gaming has, just like the ASRock Extreme4, 4x DDR4 RAM slots which can take up to 64GB of combined memory. It has the PRO Clock technology, which the company claims, provides simple and flawless overclocking with 10 CPU phases. The motherboard comes with SupremeFX audio technology for excellent audio experience and has two PCI-Express 16x slots.


Gigabyte GA-Z170X-Gaming 3

One of the more affordable choices in this list, the Gigabyte Z170 has over 450 reviews with a rating of 4.2/5 (which is quite high). Most of the features available in other motherboards are also available in this like 4X DDR 4 RAM slots, 2 PCI Express 16 X slots, 6X SATA600 slots, the capability of playing high definition audio with the Realtek ALC 1150 sound card. Besides these, it has 7x USB 3.0 slots, 1x USB 3.1 slot and 6x USB 2.0 slots which are quite enough for any of your connectivity needs. The Gigabyte Z170 gaming motherboard supports overclocking with the CPU design consisting of 8 phases.


MSI Z170A Gaming Pro

One more option that you could consider is the MSI Z170 a gaming Pro motherboard. It has 4 DDR 4 RAM slots having an overall capacity of 64 GB, just like the other motherboards. It has 6X USB 2.0 slots and 1X USB 3.1 slot which could provide speeds up to 10 Gbps. It can provide 7.1 high definition audio with the Realtek ALC 1150 sound card. The MSI Z170A supports overclocking with the CPU design of 8 phases. This MSI motherboard has over 110 reviews on Amazon with a rating of 4/5.



Performance check


We will test the motherboards on three fronts: benchmark performance, USB 3.0 performance, and power consumption to help you determine which MOBO fits you best.

  • Benchmark performance:

To check the benchmark performance of these motherboards, we have used the software Cinebench 11.5. In the test, MSI Z170 Gaming Pro performs the best with the overall performance number of 10.17. The runner-up with the overall performance of 9.77 is the Gigabyte motherboard. ASRock and Asus motherboards have more or less the same performance with the numbers of 9.74 and 9.63 respectively. On another software, Passmark 8 MemoryMark, most of the readings were roughly the same.


Tests to find the highest performing cpu



  • USB 3.0 performance

For this test, we have used Samsung SSD hard drive. We were sadly not able to test the Gigabyte motherboard, but except that, we have tested all the other motherboards.

  • Reading – In reading 1 MB, the Asus Z170 motherboard performs the best with the reading speed of over 760MB per second. ASRock has a speed of 650 MB per second and MSI comes the last with 620 MB per second speed.
  • Writing – In writing 1 MB, Asus Z170 again performs the best with the writing speed of 768 MB per second. ASRock comes second with the writing speed of 646 MB per second and MSI comes third with the writing speed of 612 MB per second.


  • Power consumption

In the idle state, Gigabyte takes the least power with the power consumption of 25 W per 5 minutes. All the other motherboards take 30 W for the same time.


Which one to choose?

As we have seen above, the results show that regarding gaming the ASRock Extreme 4 is the superior option. However, if you want to buy something that is more oriented towards office use, the Gigabyte motherboard is one of the best options available with very affordable pricing. So, the choice narrows between Gigabyte Z170 and ASRock Z170.



Gigabyte Z170 gaming 3 vs. ASRock Z170 extreme 4+


  • The ASRock motherboard performs better in gaming, has more support for graphics and overclocking.
  • ASRock is a better company for motherboards than Gigabyte.

Gigabyte Pros:

  • The Gigabyte motherboard is almost $ 30 cheaper than ASRock.
  • The Gigabyte motherboard has more reviews than the ASRock motherboard on Amazon.



Overall, the choice depends on your requirements and budget. If you are an extreme gamer and want to get the highest performance from your system, then the ASRock Z170 Extreme 4+ is the best option for you. However, if you just want your motherboard to provide you the best performance for your office work and occasional gaming, Gigabyte gaming 3 can be your best bet. Make sure to ask questions and check reviews before purchasing any of these motherboards. You must also remember that the performance and longevity of hardware also depend on your handling of it. Handle it carefully, and it will last longer. If you have any questions regarding the best motherboard for I5 6600K, make sure to make a comment below or contact us using our contact us page, if you wish to also read our review on the I7 6700K then feel free as it may prove to be a better option that the I5 6600K!


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