Quick question!!

JioFunny · July 23, 2023

Hello,

Why do I never see benchmark tests between motherboards? Is it because it is hard to do?

My main question is.. if one would have a msi mpg z790-i edge MINI ITX and a msi mpg z790 carbon ATX.. both with perfect cooling solutions with rtx 4090, i9 and top end pc components..

Would the mini itx perform the same? Even under load? Not only max performance but stability as well?

Even when very slightly overclocking cpu?

Most online will say yes it performs the same.. it is just that it has less features.. but if that is true.. how do we explain the LTT video about today's motherboards that they benchmark 5-6 different motherboards and they perform slightly different? Even though all of them are ATX.. so through logic wouldn't mini itx perform slightly worse?

Sorry this wasn't really a quick question.. but I guess the answer should be very short and quick.

A response would be greatly appreciated!!

RONOTHAN## · July 23, 2023

17 minutes ago, JioFunny said:

Why do I never see benchmark tests between motherboards? Is it because it is hard to do?

Because unless there's a difference in default BIOS settings and if the VRMs are all adequate it shouldn't make a difference. With how good boards have gotten in recent years, unless you're looking at very low end boards the VRM is going to be adequate, so it just comes down to the default power limits for if performance will differ.

You can find motherboard testing though, Hardware Unboxed does tend to do it for every major board release (mostly focusing towards the lower end boards where VRM differences are likely to show up).

18 minutes ago, JioFunny said:

Would the mini itx perform the same? Even under load? Not only max performance but stability as well?

Yes.

18 minutes ago, JioFunny said:

Even when very slightly overclocking cpu?

Yes. Theoretically the ITX board could have slightly worse if the VRM starts to overheat and thus power throttle the CPU, but if we're to assume perfect cooling solutions that isn't a problem.

21 minutes ago, JioFunny said:

how do we explain the LTT video about today's motherboards that they benchmark 5-6 different motherboards and they perform slightly different?

The boards that performed noticeably worse have much worse VRMs and therefore the CPU is power throttling. All other boards are for the most part within run to run variance. The ITX board you mentioned is one of the best ITX boards out today with a better VRM than some lower end to mid range ATX boards, hence why this doesn't actually affect anything.

JioFunny · July 23, 2023

23 minutes ago, RONOTHAN## said:

Because unless there's a difference in default BIOS settings and if the VRMs are all adequate it shouldn't make a difference. With how good boards have gotten in recent years, unless you're looking at very low end boards the VRM is going to be adequate, so it just comes down to the default power limits for if performance will differ.

You can find motherboard testing though, Hardware Unboxed does tend to do it for every major board release (mostly focusing towards the lower end boards where VRM differences are likely to show up).

Yes.

Yes. Theoretically the ITX board could have slightly worse if the VRM starts to overheat and thus power throttle the CPU, but if we're to assume perfect cooling solutions that isn't a problem.

The boards that performed noticeably worse have much worse VRMs and therefore the CPU is power throttling. All other boards are for the most part within run to run variance. The ITX board you mentioned is one of the best ITX boards out today with a better VRM than some lower end to mid range ATX boards, hence why this doesn't actually affect anything.