ASUS PRIME Z370-A vs ASRock Z370 Extreme4 motherboard

Asus Prime Z370-A and ASRock Z370 Extreme4 are closely priced motherboards whose prices hover around $180. Many people can get confused between the two and need to know which will perform best. So, I have done the research and have put the similarities, differences and conclusion for both the motherboards which will help you to select your desired motherboard for your PC build.  

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VRM

8+2 Power phase design
Theoretically fine overclocking

Memory Overclocking

Supports up to 3866Mhz OC memory

PCI Slots

4x PCI-Ex 1 slots
Doesn't supports Quad Nvidia SLI and Quad AMD CrossfireX

Onboard Features

1x MemOK and 1x PWR_SW buttons
No USB 3.1 Gen 1 Type C header

I/O Ports

1x DP Port
Only 2x USB 3.1 Gen 1 ports

Storage

1x M.2 Support both SATA and PCI-E modes but 1x M.2 supports PCI-E mode only
1x M.2 slot comes with heatsink

Fan Headers

1x 5pin EXT_FAN connector

BIOS

Asus Bios(Easy interface and lots of functions)

VRM

12+1 Power phase design
Theoretically much better overclocking

Memory Overclocking

Supports up to 4333Mhz OC memory

PCI Slots

3x PCI-Ex 1 slots
Supports Quad Nvidia SLI and Quad AMD CrossfireX

Onboard Features

No onboard troubleshooting buttons
1x USB 3.1 Gen 1 Type C header

I/O Ports

1x VGA Port
4x USB 3.1 Gen 1 ports

Storage

Both the M.2 slots support SATA and PCI-E modes
No heatsink for any M.2 slot

Fan Headers

No extension fan header

BIOS

ASRock Bios(Just Fine)

✅ It has much better bios and has easy interface both in Bios and AI suite software to overclock CPU and Memory

✅ Comes with 1x DP port for connecting to a monitor which is the best interface till now

✅ 1 additional PCI-Ex 1 slot can be used for various expansion cards

✅ Onboard troubleshooting is easier with Power switch button and MemOK button

✅ Heatsink on the second M.2 slot will help achieve lower temperature on the NVME SSD

✅ Has more Power phases which means better stability in overclocking

✅ It has a onboard USB 3.1 Type C header which is very beneficial in many cases

✅ Both of it's M.2 sockets support SATA as well as PCI-E modes which means better compatibility

✅ It supports Quad SLI and Quad CrossfireX. Although, it's not a big advantage in general

✅ It has 1x DVI port which can be used to connect to a monitor not having having DP or HDMI ports

✅ It has 2 more USB 3.1 ports over Asus Prime Z370-A at its I/O

✅ It supports highly overclockable memories