ABCDEFGHIJKLMNOPQRSTUVWXYZ
1
 AM4 B450/X470 MOTHERBOARD Vcore VRM TIER LIST v1.3 (2019-03-29) BY Cautilus#5912 (Discord)
Cr1318 (Reddit)
2
ASROCKASUSGIGABYTEMSI
3
TOP TIER
Most suitable for extreme overclocking		X470 Taichi (Ultimate)
6 x 2 CSD87350 with 6x IR3598		Crosshair VII Hero
5 x 2 IR3555 with 5x IR3599		X470 Aorus Gaming 7
5 x 2 IR3553 with 5x IR3599		X470 Gaming M7 AC
6 x 2 (4C029N & 4C024N) with 6x IR3598
4
HIGH-END
Most suitable for a highly-OC’d 2700X		Strix X470-F
6 x IR3555		B450I Gaming Plus (AC)
6 x IR3555
5
X470 Gaming Pro Carbon AC
5 x 2 (4C029N & 4C024N)
6
MIDRANGE
Okay for a highly OC’d 2700X		B450 Tomahawk
4 x (2x 4C029N & 2x 4C024N)
B450M Mortar (Titanium)
4 x (2x SM4337 & 2x SM4503)
B450M Bazooka Plus?
4 x ?
7
Prime X470-Pro
Strix X470-I
Strix B450-I
6 x IR3553		X470 Gaming Plus
X470 Gaming Pro
B450 Gaming Pro Carbon (AC)
4 x 2 (4C029N & 4C024N)
B450-A Pro
B450(M) Gaming Plus?
4 x (2x 4C029N & 2x 4C024N)
8
B450 Fatal1ty Gaming K4
B450(M) Pro4(-F)
3 x 2 (SM4337 & SM4336) or
3 x 2 (PZ09093PK & PK618BA)
B450I Aorus Pro WiFi
4 x IR3556
9
LOWER END
Would require airflow for a highly OC’d 2700X		B450 Fatal1ty Gaming-ITX/ac
X470 Fatal1ty Gaming-ITX/ac
3 x 2 FDPC5030 or SM7341EH
X470 Master SLI(/AC)
X470 Fatal1ty Gaming K4
B450(M) Steel Legend
4 x 2 (SM4337 & SM4336) or
4 x 2 (PZ09093PK & PK618BA)		TUF B450(M)-PRO GAMING
Strix B450-E
4 x 2 (4C10B & 4C06B)		X470 Aorus Gaming 5
X470 Aorus Ultra Gaming
4 x 2 (4C10N & 4C06N)		B450M Bazooka?
4 x ?
10
TUF X470 Plus Gaming
TUF B450(M)-Plus Gaming
Strix B450-F
Prime B450-Plus
4 x (4C10B & 2x 4C06B)		B450 Aorus Elite
B450 Aorus Pro (WiFi)
B450 Aorus M
B450M Gaming
4 x (4C10N & 2x 4C06N)
11
B450M-HDV
4 x (SM4337 & 2x SM4336) or
4 x (PZ09093PK & 2x PK618BA)		B450M DS3H
B450M S2H
4 x (4C10N & 2x 4C06N)		B450M Pro-VDH?
4 x ?
12
GARBO TIER
Not suitable for a OC’d 2700x		Prime B450M-K
Prime B450M-A
4 x (4C10B & 2x 4C06B)		B450M Pro-M2
4 x ?
13
14
15
UNEVALUATED MOTHERBOARDS
16
ASROCKASUSGIGABYTEMSI
17
B450 Gaming XB450M BAZOOKA V2
18
B450M PRO-VDH PLUS
19
B450M PRO-VDH V2
20
B450M PRO-M2 V2
21
Add mobos in a comment here if they're not in the unevaluated section or in the chart itself
22
NOTES/FAQ:
• VRM data sourced from: https://www.hardwareluxx.de/community/f12/pga-am4-mainboard-vrm-liste-1155146.html - google “hardwareluxx am4 vrm list”, it’s the first result.
• What is a “highly-OC’d 2700X” exactly?
• 4.1GHz manual all-core OC with 1.4V Vcore, under a highly stressful load for a prolonged duration, say Blender or P95 AVX. This is intended to be essentially a worst case scenario for the VRM, and for more normal workloads/OCs, you could probably shift the chart up by one slot (except for the Garbo Tier motherboards).
• How can I evaluate this chart if I have a 2600/2600X/2700 and/or if I don’t OC my CPU?
• 2600/2600X OC – you’ll be fine on anything that isn’t garbo tier.
• 2700 OC – Pretty similar to the 2700X except you might only get 4.075GHz or something, so the list is still exactly the same.
• 2600/2600X/2700 non-OC – all of the boards on the list should be able to handle any second-gen Ryzen CPU at stock.
• Have you actually tested all of these boards and how they perform?
• Nope, I’ve just looked at and evaluated the VRM specs for each motherboard on the VRM list and pictures of their heatsinks and guessed how they would perform based on testing performed by actual reviewers/experts like Buildzoid from Actually Hardcore Overclocking and Steve from Gamers Nexus. Take this tier list with a slight grain of salt.
• Where a motherboard name has something in brackets, it means that version is exactly the same as the non-bracketed version.
• E.g. the ASRock B450 Pro4 and B450M Pro4 have the same Vcore VRM and VRM heatsink.
• Phase counts written like “5 x 2” indicate phases which have double the mosfets and chokes per phase. However, only boards with the ‘with Xx IRXXXX’ suffix have phases with doublers. Phases without doublers but double the components are what I like to call “big phases”.
• “Big phases” generally have worse voltage regulation than actually doubled phases.
• E.g. the ASUS Crosshair 7 Hero has a doubled five phase using IR3599 doublers, whilst the MSI X470 Gaming Pro Carbon AC has five phases with double the mosfets and chokes, but with no doublers.
• Motherboards with a question mark are guessed to be where they are since their VRM info is not confirmed on the hardwareluxx VRM list, but they’re mostly accurate, give or take one tier slot.
• Where two mosfets are mentioned with an ‘&’ symbol, the first one is the high-side mosfet, the second one is the low-side mosfet.
• This list only ranks motherboards by Vcore VRM and their heatsinking, and does not take into account:
• BIOS features/user friendliness
• Memory overclocking ability
• Motherboard features (Rear I/O, M.2 slots, PCIe slots etc.)
• Aesthetics
• SOC VRM and heatsinking (please note: the mini-ITX boards sometimes have not-so-great SOC VRMs/VRM heatsinking and I would be careful when choosing them for APUs).

Reddit discussion here:
https://www.reddit.com/r/hardware/comments/9ucbva/am4_b450x470_vrm_tier_list/
https://www.reddit.com/r/Amd/comments/9uc6bi/am4_b450x470_vrm_tier_list/
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
REFERENCES:
All VRM data for motherboards except the below mobos: https://www.hardwareluxx.de/community/f12/pga-am4-mainboard-vrm-liste-1155146.html
ASUS TUF B450(M)-PRO GAMING: https://www.youtube.com/watch?v=uIgFG_SucEk&t=361s
ASRock B450(M) Steel Legend: https://www.youtube.com/watch?v=9BNKYey7UMU
Gigabyte B450M GAMING: https://www.youtube.com/watch?v=lVtRJCyU6D4

Positioning for boards:
https://www.youtube.com/watch?v=EqQcgwz1hYA
https://www.youtube.com/watch?v=N9s03mVW76s
https://www.youtube.com/watch?v=6qZW3-xZEHg&t=464s
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100