Video summary

47 AMD B850 Motherboards Tested - Nearly Every Board!

Main summary

Key takeaways

Product Review

Product reviewed

This video is a large roundup/testing of 47 motherboards based on the AMD B850 chipset (ATX, microATX, and mini-ITX variants, including Wi‑Fi and non‑Wi‑Fi models). It focuses heavily on VRM/thermals under CPU stress using an AMD Ryzen 9 9950X (170W).

Key features mentioned across boards

  • Chipset/target use: AM5 platform B850 boards tested for capability with current and “future” AMD CPUs.
  • VRM focus: The main technical emphasis is whether boards can sustain load without overheating/throttling.
  • Connectivity variations (typical highlights by brand/models):
    • Many boards include combinations of:
      • Wi‑Fi 6E or Wi‑Fi 7
      • 2.5GbE or 5GbE LAN
      • Multiple M.2 slots (some with PCIe 5.0)
      • Mixed USB counts, often highlighting number of USB 3.2 and USB 2.0, plus Type‑C
    • Higher-end/unusual models add extras like USB4 or dual 10GbE (on a top-tier B850).

Testing / user experience results (most important content)

Stress-test method

  • Case: Antec Flux Pro
  • Temperature measurement: Digital thermometer with K-type thermocouples, reporting peak PCB temperature
  • Stress workload: Cinebench 2024 looped for 1 hour using Ryzen 9 9950X
  • Thermals are the deciding factor: Boards are considered “good” if they don’t throttle and keep VRM temps under control.

Overall thermals outcome

  • “Vast majority” passed the 1-hour VRM thermal criteria.
  • Many boards stayed under 80°C, with some between 80–90°C.
  • A handful failed due to power limits and/or VRM thermal issues.

Worst / avoid-list (named)

  1. Sapphire Pulse B850M Wi‑Fi

    • Hard 150W limit (cannot remove)
    • Concern: despite listing support for higher-watt CPUs, it can’t deliver full stock performance
    • Peak temp around 70°C (cool, but limited)
    • Recommendation: Avoid due to the locked limit; better budget alternatives exist.

  2. MSI Pro B850 MP Wi‑Fi

    • 140W limit (removable)
    • When unrestricted: VRM temps skyrocket >120°C with the 9950X
    • Uses discrete MOSFETs described as struggling under load
    • Recommendation: Avoid

  3. Gigabyte B850M DS3H

    • Hard 170W limit
    • Criticism: marketing claims of consistent high performance feel “rich” because the hard limit constrains results

  4. ASRock entry-level boards (B850 MA / B850 MX)

    • 160W hard limit
    • Fine for ≤120W CPUs, but not ideal if targeting the top-end wattage behavior

  5. Some ASUS boards at $150–$180 range

    • Not described as power-limited, but still criticized for poor thermals:
      • ASUS B850 Max Gaming Wi‑Fi
      • ASUS Prime B850 Plus Wi‑Fi
      • ASUS Prime B850 MK
    • Peak temps over 100°C due to “cheap discrete MOSFETs”

Best / top performer (named)

  • Gigabyte B850 AI Top
    • Peak VRM/PCB temp about 52°C
    • Described as the winner of thermal testing (not a “big” win because most boards pass, but it’s the best)

Performance comparison highlights

  • After thermal testing, there’s also a 10-minute loop test immediately after.
  • Result summary:
    • Boards that technically “passed” (orange) did so but ran excessively hot, so they were considered less competitive
    • For the “good” boards: ~5% performance variation between fastest and slowest
    • Run-to-run variance is also a few %, implying real-world differences are small when boards thermally behave well.
  • Conditional note:
    • With 120W or lower processors, all tested boards enabled the same performance level (power-limit issues mainly matter for higher-watt parts like the 9950X scenario).

Brand/model-specific value recommendations (best-of lists)

Best value overall

  • ASRock B850M Pro RS
    • Price mentioned: ~$130 (US)
    • Claimed to work well even with the 9950X
    • Caveat: tied to the broader ASRock AM5 issue note (see Major concerns / caveats).

Next best value options

  • Gigabyte B850M Orus Elite Wi‑Fi 6E ICE (around $165–$190 (US))
  • MSI Pro B850M A Wi‑Fi (around $170 (US)), with upgrades like Wi‑Fi 7 / 5GbE / more USB

Best ATX around ~$200

  • MSI Tomahawk Max Wi‑Fi
    • More impressive than MSI Pro B850-P Wi‑Fi
    • Better VRM layout (described as on 8-layer PCB instead of 6-layer), plus extra M.2/USB improvements

Best microATX around ~$200

  • Picks depend on price, with highlights:
    • ASRock B850M Steel Legend Wi‑Fi (sometimes $140–$180 (US))
    • Gigabyte B850M Orus Elite Wi‑Fi 6E ICE (noted for white builds)
    • MSI B850M Motor Wi‑Fi criticized as “too expensive for what it is,” despite features (5GbE, more USB, Wi‑Fi 7, PCIe 5.0 M.2)

Best mini-ITX

  • Decision is pricing-dependent, and at the time:
    • ASRock B850i Lightning Wi‑Fi at $200 (US) highlighted as “unbeatable” value
    • Compared vs:
      • MSI MPG B850i Edge TI Wi‑Fi: includes 5GbE, typically cheaper than ASUS
      • Gigabyte B850i Orus Pro
      • ASUS ROG Strix B850i Gaming Wi‑Fi: more expensive; no major advantage over MSI per the video’s view
  • LAN summary:
    • ASRock is mentioned with Wi‑Fi 6E
    • Most others use Wi‑Fi 7
    • Only MSI is called out as having 5GbE; others use 2.5GbE

“Crazy” high-end (B850 where X870 becomes an option)

  • Gigabyte B850 AI Top praised as the best extreme B850 because it includes unusual features like dual 10GbE (video claims X870 doesn’t typically offer this combo)
  • Critique: once near ~$300, X870 boards become attractive due to features like USB4
  • Mentioned alternative:
    • ASRock X870 Taichi Creator at about $320 (US)
      • 10GbE present, but second port limited to 5GbE
      • Adds extra M.2 slot and two USB 4 ports

Major concerns / caveats

ASRock X3D-related issues (critical recommendation caveat)

  • The host flags an ongoing concern about ASRock AM5 motherboards potentially “killing” X3D CPUs (and possibly other CPUs too).
  • Recommendation based on this:
    • Only recommend ASRock boards if you’re sure you’ll never use an X3D CPU.
  • Note: The ASRock B850 range is still described as strong value, but the situation is framed as a “real big mess.”

Pros (as expressed in the video)

  • Most B850 boards perform well thermally under heavy load and don’t meaningfully differ in performance (beyond small %).
  • A wide set of options exist across price tiers and form factors.
  • Standouts include:
    • Gigabyte B850 AI Top for best thermals
    • ASRock B850M Pro RS for value (with the ASRock/X3D caveat)
    • MSI Tomahawk Max for strong ATX ~$200 value
    • ASRock Lightning / MSI Edge TI as top mini-ITX contenders depending on LAN needs

Cons (as expressed in the video)

  • Power-limit boards can underperform for high-watt CPUs:
    • Sapphire Pulse (150W hard limit)
    • MSI Pro MP (140W limit with very hot VRM when removed)
    • Multiple “cheap” models with hard limits
  • Some ASUS lower-priced boards run very hot (>100°C) due to cheaper VRM MOSFET choices.
  • Some boards become price-unreasonable at the top end; by ~$300, X870 is suggested as the better platform for features like USB4.
  • ASRock reliability concern for X3D CPU users is a major decision factor.
  • NZXT/ASRock-manufactured N7 B850 (one model description) has a design issue: plastic shrouds covering thermal areas, potentially detrimental for M.2 cooling (primary M.2 is fine; secondary/tertiary slots are cautioned).

Unique points mentioned about specific products (quick list)

  • Gigabyte B850 AI Top: ~52°C peak; dual 10GbE, Wi‑Fi 7; best “extreme B850.”
  • Sapphire Pulse B850M Wi‑Fi: 150W hard limit, can’t be removed; cool (~70°C) but performance constrained.
  • MSI Pro B850 MP Wi‑Fi: 140W limit; after removal VRM >120°C; described as poor at 9950X load.
  • Gigabyte B850M DS3H: 170W hard limit.
  • ASRock B850 MA / MX: 160W hard limit (works for lower-watt CPUs).
  • ASUS B850 Max Gaming / Prime B850 Plus / Prime B850 MK: not power-limited but peaked >100°C; cheap discrete MOSFETs.
  • MSI Tomahawk Max Wi‑Fi: recommended ATX ~$200 due to stronger VRM/IO/M.2/USB relative to MSI’s other ~$200 board.
  • ASRock B850M Pro RS: best value; works with 9950X; but don’t use with X3D due to the broader ASRock risk.
  • mini-ITX LAN/CPU preference: ASRock Lightning (Wi‑Fi 6E), MSI Edge TI (5GbE), others mostly 2.5GbE.
  • MSI Edge TI Wi‑Fi (mini-ITX): strong contender; includes 5GbE.
  • ASRock X3D caveat: recurring warning about ASRock potentially harming X3D CPUs (and possibly others).
  • NZXT N7 B850 (ASRock-made): plastic shroud over thermally important areas; caution on secondary/tertiary M.2 cooling.

Speakers / roles

  • Host: Steve (main narrator): all testing results, recommendations, and brand/model commentary come from Steve’s perspective.
  • No separate reviewer voices are clearly indicated in the subtitles.

Overall verdict / recommendation

  • Recommendation: If you want a B850 board for real high-load use (like a Ryzen 9 class 170W scenario), thermals/VRM matter more than small spec differences—most boards pass, but some are power-limited or run very hot.
  • Best thermal standout: Gigabyte B850 AI Top (about 52°C peak) for extreme users.
  • Best value: ASRock B850M Pro RS (~$130) only if you won’t use an X3D CPU (due to the ASRock risk mentioned).
  • Avoid: Sapphire Pulse B850M Wi‑Fi, MSI Pro B850 MP Wi‑Fi, and “budget ASUS” boards that run >100°C, plus other hard-limited boards when targeting top-tier CPU power.

Original video