Motherboard VRM Tier List v2 (currently AMD only)

[bkrenderman]

2 hours ago, Jurrunio said:

I doubt it. Since X670 are all $300+, B650 wouldnt start below $200 which is still expensive (X570 launched with good boards at $200). Not to mention DDR5 prices don't give AMD's plans a [profanity]. 'Budget" and "7000 series" don't go together even if it's $100 less than with X670.

yes thats a reality. x670 is very expensive mostly for budget builds. hopefully we will see budget B650 couple months down the line. atleast in the range of 150-200.

 

anyway so given the current expensive situation of DDR5 and x670 do you suggest me to upgrade my 1600x to ryzen 5000 or 7000. I am on budget and need system for productivity work. more cores better.

[Jurrunio]

1 hour ago, bkrenderman said:

yes thats a reality. x670 is very expensive mostly for budget builds. hopefully we will see budget B650 couple months down the line. atleast in the range of 150-200.

 

anyway so given the current expensive situation of DDR5 and x670 do you suggest me to upgrade my 1600x to ryzen 5000 or 7000. I am on budget and need system for productivity work. more cores better.

Depends on how tight is your budget and how much of your current system could be reused. 5950X (in the US) cost a tad more than the 7900X while being slower by about 20% in multithread benchmarks at about $550, if you dont have at least $1000 to spend I'm pretty sure 5000 series is the better choice.

[Roen]

What tier is the Gigabyte B550 Aorus Pro AX ITX?

 

A little confused when reading the list.

[Jurrunio]

3 hours ago, Roen said:

What tier is the Gigabyte B550 Aorus Pro AX ITX?

 

A little confused when reading the list.

A

[linuxChips2600]

Hi does anyone here know what tier the ASRock B550M-C would go under? I had to get a replacement mobo for my GIGABYTE B550M AORUS PRO-P because one of the usb ports in my gigabyte mobo broke and the B550M-C was the only matx Ryzen 5000 mobo micro center had in stock . I know I got a bit of a downgrade in terms of VRM performance but I would just like to know by how much, and also if the B550M-C can handle a 5900x on full PBO cranked bc I'm planning on swapping out my existing 5600x for a 5900x sometime in the future .

[Jurrunio]

5 hours ago, linuxChips2600 said:

Hi does anyone here know what tier the ASRock B550M-C would go under? I had to get a replacement mobo for my GIGABYTE B550M AORUS PRO-P because one of the usb ports in my gigabyte mobo broke and the B550M-C was the only matx Ryzen 5000 mobo micro center had in stock . I know I got a bit of a downgrade in terms of VRM performance but I would just like to know by how much, and also if the B550M-C can handle a 5900x on full PBO cranked bc I'm planning on swapping out my existing 5600x for a 5900x sometime in the future .

Straight to tier D, it's not very different from the B550M Pro4 board, but the heatsink got even smaller so it's back to B450 grade.

[linuxChips2600]

1 hour ago, Jurrunio said:

Straight to tier D, it's not very different from the B550M Pro4 board, but the heatsink got even smaller so it's back to B450 grade.

Tysm for the quick and informative reply! Since B550M Pro4 and B550M-C have such similar VRMs, IF my case has plenty of airflow (I have a LIAN LI 205M TG mATX case so I think I should be fine in the airflow dept.), how well do you think the B550M-C will be able to handle a 5900x on max PBO settings? Will the B550M-C do so poorly with the 5900x on max PBO that I'm recommended returning the board to Micro Center and getting something off of Amazon like the ASRock B550M Steel Legend instead? Given how I purchased the B550M-C through a protection plan redemption idk if I'll be able to get my money back in cash (or back on any card for that matter) if I returned the board so hopefully I'll be able to keep the B550M-C for the future 5900x upgrade I'd like to do, which is why I'm wondering if I can just get by with the B550M-C even if I do max PBO settings with said board once I get the 5900x. Thank you for understanding and please let me know if 5900x + max PBO settings + B550M-C will cause significant performance degradation on the 5900x or not.

[Jurrunio]

11 hours ago, linuxChips2600 said:

IF my case has plenty of airflow

If it's not "strapping a fan to the VRM heatsink" kind of airflow, it won't do.

[linuxChips2600]

3 hours ago, Jurrunio said:

If it's not "strapping a fan to the VRM heatsink" kind of airflow, it won't do.

Damn OK I'll see if I can return the mobo back for my $$$ then... no guarantees though given how it was purchased at micro center

[Roen]

On 10/9/2022 at 7:03 PM, linuxChips2600 said:

Hi does anyone here know what tier the ASRock B550M-C would go under? I had to get a replacement mobo for my GIGABYTE B550M AORUS PRO-P because one of the usb ports in my gigabyte mobo broke and the B550M-C was the only matx Ryzen 5000 mobo micro center had in stock . I know I got a bit of a downgrade in terms of VRM performance but I would just like to know by how much, and also if the B550M-C can handle a 5900x on full PBO cranked bc I'm planning on swapping out my existing 5600x for a 5900x sometime in the future .

Have you thought about getting an ITX board?

[linuxChips2600]

On 10/11/2022 at 3:44 PM, Roen said:

Have you thought about getting an ITX board?

I just got the b550m steel legend; I have 4 dimms so itx boards won't work unless if I sacrafice 16 gb of my memory

[fede4justice]

Hi guys, i have a 5950x and a Asrock X570 Steel legend.

Do you think is this board enough? In the first topic's chart i can see it can max out a 5900x, but no mention of 5950x.

I have setted custom PBO (a little higher than default) and CO (let's say a medium CO, not safe but not extreme), i think these infos might be useful.

[Jurrunio]

4 hours ago, fede4justice said:

Hi guys, i have a 5950x and a Asrock X570 Steel legend.

Do you think is this board enough? In the first topic's chart i can see it can max out a 5900x, but no mention of 5950x.

I have setted custom PBO (a little higher than default) and CO (let's say a medium CO, not safe but not extreme), i think these infos might be useful.

Make sure PPT, TDC and EDC limits are not too high then. I dont know how good your airflow is but let's say 180W PPT, 140A TDC and 160A EDC.

[fede4justice]

15 hours ago, Jurrunio said:

Make sure PPT, TDC and EDC limits are not too high then. I dont know how good your airflow is but let's say 180W PPT, 140A TDC and 160A EDC.

May I take this opportunity to take away a doubt?
I'm speaking as an inexperienced person, but doing the math and using logic, if I multiply the number of phases dedicated to the vcore of my motherboard to the ampere value of each phase (so 8x50A) I get 400A, so theoretically, there would fit even 3x 5950x (stock) on my motherboard, in overclock probably less than 2 but surely one alone would have a wide margin since I doubt it would exceed 200-250A even under heavy overclock. That said, these calculations of mine do not often coincide with what is listed in the first topic, may I ask why?

[Jurrunio]

8 hours ago, fede4justice said:

May I take this opportunity to take away a doubt?
I'm speaking as an inexperienced person, but doing the math and using logic, if I multiply the number of phases dedicated to the vcore of my motherboard to the ampere value of each phase (so 8x50A) I get 400A, so theoretically, there would fit even 3x 5950x (stock) on my motherboard, in overclock probably less than 2 but surely one alone would have a wide margin since I doubt it would exceed 200-250A even under heavy overclock. That said, these calculations of mine do not often coincide with what is listed in the first topic, may I ask why?

This probably isnt the model you have but something similar:

 

If you make 8 of them run at 50A, you'll get 96w+ of heat from powerstages alone. In your case the number would be even higher since you'd want more than 1V coming out of the VRM which is what these plots on the datasheet assume.

 

Then look at what kind of coolers the 75W graphics card have and compare with what your motherboard comes with.

 

For most mid range boards, 20W VRM heat output is already too much if you don't add a fan directly blowing onto it.

[fede4justice]

23 hours ago, Jurrunio said:

This probably isnt the model you have but something similar:

 

 

If you make 8 of them run at 50A, you'll get 96w+ of heat from powerstages alone. In your case the number would be even higher since you'd want more than 1V coming out of the VRM which is what these plots on the datasheet assume.

 

Then look at what kind of coolers the 75W graphics card have and compare with what your motherboard comes with.

 

For most mid range boards, 20W VRM heat output is already too much if you don't add a fan directly blowing onto it.

I start by thanking you so much for the explanation, I really appreciate it!
So, I believe that my 5950x with CO and with SMT off does not require more than 180A (I am not sure about this value, but I think something similar), so I suppose my 8 phases heat less than half of the example you provided, correct me if I am wrong.
To make sure of that, could you tell me what is the correct value to look at on hwinfo for vrm temperatures? This is the first motherboard I am having trouble finding them with. I'm assuming they are "Ciclo VR 1" or "Ciclo VR 2" values (sorry for italian language used in hwinfo, anyway Ciclo means Loop).

 

Here there are my two screens (just one wasn't enough to cover all hwinfo's interface), taken after a 10mins cinebench R23 multi-thread test setted on real time priority (i usually use high priority, but in this case i did this to stress vrm a little more):

 

https://ibb.co/PmytMW8
https://ibb.co/b26czzp

[Jurrunio]

30 minutes ago, fede4justice said:

So, I believe that my 5950x with CO and with SMT off does not require more than 180A (I am not sure about this value, but I think something similar), so I suppose my 8 phases heat less than half of the example you provided, correct me if I am wrong.

Use CPU TDC, CPU EDC and CPU PPT, TDC stands for sustained current, EDC for burst current and TDC for sustained power.

 

30 minutes ago, fede4justice said:

To make sure of that, could you tell me what is the correct value to look at on hwinfo for vrm temperatures? This is the first motherboard I am having trouble finding them with. I'm assuming they are "Ciclo VR 1" or "Ciclo VR 2" values (sorry for italian language used in hwinfo, anyway Ciclo means Loop).

Use Circlo VR 1 from the controller (ISL69138) with the larger corrente (IOUT) value. Seems like your board has two of these, one handles the core power and the other SOC power. Both Circlo VR 1 are technically important but core power should be the one that runs hotter at all times. Except when you use APUs that is.

[fede4justice]

12 hours ago, Jurrunio said:

Use CPU TDC, CPU EDC and CPU PPT, TDC stands for sustained current, EDC for burst current and TDC for sustained power.

 

Use Circlo VR 1 from the controller (ISL69138) with the larger corrente (IOUT) value. Seems like your board has two of these, one handles the core power and the other SOC power. Both Circlo VR 1 are technically important but core power should be the one that runs hotter at all times. Except when you use APUs that is.

I double checked my PBO limits cause i didn't remember anymore and i have PPT 200, TDC 200, EDC 150. What do you think about it?

And what about vrm's temps reported in screenshot (50°C max)? Should i worry about it?

[Jurrunio]

On 10/19/2022 at 5:24 AM, fede4justice said:

I double checked my PBO limits cause i didn't remember anymore and i have PPT 200, TDC 200, EDC 150. What do you think about it?

And what about vrm's temps reported in screenshot (50°C max)? Should i worry about it?

TDC is meaningless to be over EDC.

 

The maximum temperature only means something when you stress test the CPU to make it burn as much power as possible and put the VRM under maximum load.

[fede4justice]

5 hours ago, Jurrunio said:

TDC is meaningless to be over EDC.

 

The maximum temperature only means something when you stress test the CPU to make it burn as much power as possible and put the VRM under maximum load.

What software do you recommend in order to put cpu/vrm under maximum load?
Anyway. thanks for advice, I'll change TDC/EDC, you're absolutely right.

[Jurrunio]

2 hours ago, fede4justice said:

What software do you recommend in order to put cpu/vrm under maximum load?
Anyway. thanks for advice, I'll change TDC/EDC, you're absolutely right.

I'd recommend Prime95. It has multiple presets like blend, smallFFT, largeFFT etc, you'll have to test and see which one makes the system draw more power.

[BoberMod]

Here is Tier A: B550 TUF Plus (mATX & mATX WiFi)

But I can't find anywhere mAtx version. There are only B550M models that are rated to Tier E/F.

 

Can you send me link to matx version of B550 TUF Plus?

[Jurrunio]

4 hours ago, BoberMod said:

 

Can you send me link to matx version of B550 TUF Plus?

https://www.asus.com/Motherboards-Components/Motherboards/TUF-Gaming/TUF-GAMING-B550M-PLUS/

 

B550M just means they are B550 mATX, the chipset is the same so I do not use the B550M name. Same holds true for mITX (B550I) or other chipsets.

 

4 hours ago, BoberMod said:

There are only B550M models that are rated to Tier E/F.

those are not the TUF B550 boards.

[fede4justice]

On 10/21/2022 at 4:39 AM, Jurrunio said:

I'd recommend Prime95. It has multiple presets like blend, smallFFT, largeFFT etc, you'll have to test and see which one makes the system draw more power.

I ran the SmallestFFTs, SmallFFTs, LargeFFTs tests for one hour each, and finally the Blend test for 2 hours. Passed all with no errors and no warnings.
The worst in terms of VRM temperatures was the LargeFFTs.

In any case, I never exceeded 56° peak on the VRMs, reported in the "Maximum" column of HWinfo.

I suppose it is also due to the airflow of my case (LianLi O11D XL, full of fans).

Can I therefore be comfortable with these temperatures?

[Jurrunio]

8 hours ago, fede4justice said:

I ran the SmallestFFTs, SmallFFTs, LargeFFTs tests for one hour each, and finally the Blend test for 2 hours. Passed all with no errors and no warnings.
The worst in terms of VRM temperatures was the LargeFFTs.

In any case, I never exceeded 56° peak on the VRMs, reported in the "Maximum" column of HWinfo.

I suppose it is also due to the airflow of my case (LianLi O11D XL, full of fans).

Can I therefore be comfortable with these temperatures?

it's fine to hit mid 80s even.