Video summary

This GPU Utility unlocks ALL your GPU Performance! RIP Afterburner...

Main summary

Key takeaways

Technology

Summary of the Video (GPU Utility Comparison: MVolt Plus vs MSI Afterburner)

Purpose of the video

The creator compares a newer GPU tweaking utility called MVolt Plus with MSI Afterburner, focusing on:

  • Whether MVolt Plus is more powerful (more controls)
  • Whether it’s safe to use

Main claim/context

The video frames MSI Afterburner as relatively basic, while MVolt Plus exposes many lower-level parameters (including multiple voltage rails and additional clocks), which can potentially produce higher benchmark scores.

Product/Utility Analysis and Key Concepts

1) Why voltage-frequency matters (VF curve)

The creator explains that NVIDIA tuning is constrained by the voltage-frequency (VF) curve:

  • If you raise frequency without enough voltage, the GPU will crash.

They also note that both voltage and temperature indirectly affect what frequency you can achieve:

  • Lower temperatures can allow higher frequency.
  • Higher temperatures can limit frequency.

2) Differences between MSI Afterburner and MVolt Plus

MSI Afterburner (example version mentioned: ~4.6.7 beta)

It mostly provides higher-level controls such as:

  • Core voltage (percentage-style slider)
  • Core clock offset (offset relative to the boost behavior)
  • Memory clock

It can show telemetry, but tuning is described as high-level compared to MVolt Plus.

MVolt Plus

MVolt Plus provides a much deeper tuning interface, including:

  • A “Boost” button that pins the GPU to its maximum boost clock.
  • Telemetry + multiple clocks, such as:
    • Core clock
    • Memory clock
    • Crossbar clock
    • System clock
    • Video clock
  • Multiple voltage rails, including rails labeled like:
    • NVVDD
    • MSVDD (noted as relevant to components like crossbar/video clock and encoding blocks)
  • A power limit that is generally still constrained by the VBIOS, with commentary that other tools (e.g., Hydra) might bypass some limits.

3) Crossbar/XBAR clock as a major tuning lever

The creator emphasizes crossbar clock as especially important:

  • It’s compared conceptually to AMD’s Infinity Fabric/interconnect behavior.
  • They mention that improvements seen in leaderboard history suggest crossbar boosting can produce large gains.

They plan to test increasing XBAR offset (example guess: +250) and evaluate benchmark impact.

4) Limits: VBIOS power/voltage constraints and “XOC” range

Voltage limiting (VBIOS/card constraints)

The card can typically only be pushed up to a limit defined by the card/VBIOS (examples mentioned in the general range around 1.045–1.05V).

MVolt Plus “XOC voltage range”

MVolt Plus is described as enabling higher voltage—up to about 1.20V—though the actual applied voltage depends on current requests and stabilization behavior.

Card-specific power notes

  • 5090 FE: described as 575W out of the box, with about +4% to reach 600W.
  • Other 5090 variants: described as 100% of 600W default.
  • Custom high-end models (examples: Lightning Z / ASUS Matrix / other ROG models) are described as allowing beyond 600W.

5) Safety discussion (practical risk)

The creator acknowledges practical risks of pushing voltage and frequency:

  • Driver crashes
  • Instability if frequency requests exceed what the silicon can handle (even when voltage is raised)

They conclude:

  • Damage risk is unlikely if cooling remains controlled.
  • However, most people probably don’t need these advanced tools.

Benchmark / Tutorial-Like Steps Shown

Example benchmark used

The creator uses Speedway as the test benchmark.

They also mention run-to-run variance is small (e.g., 50–100 points), and that very large differences (500–800) usually indicate something changed materially—or was incorrect.

What they did during testing (high-level)

  1. Begin from a known MSI Afterburner-style baseline (example mentioned: ~+360 core offset reliably).
  2. Run a Speedway test after resetting/using MVolt Plus tuning.
  3. Use MVolt Plus to:
    • Max/raise voltage availability (example shows MSVDD allowed up to ~1095mV, later pushing higher rail allowances).
    • Potentially raise rails to improve crossbar stability (MSVDD behavior discussed in that context).
  4. Enable XBAR offset (guessed value), while not adjusting certain other clocks (notably leaving system/video clock unchanged).
  5. Observe instability/driver crashes when settings become too aggressive.

Outcome

The clip ends before a fully finalized “clean score comparison” with a complete optimized sweep. Instead of finishing a definitive ranking, the emphasis is on:

  • What the controls mean
  • The general risk/benefit
  • How the tooling changes tuning depth

Overall Conclusion / Guidance

  • MVolt Plus: positioned as powerful for enthusiasts because it exposes more knobs (rails, crossbar/system/video clocks).
  • Most users: the creator recommends sticking to MSI Afterburner-style tuning, such as:
    • Increasing power limit
    • Using a custom fan curve
    • Saving profiles
    • Optional mild overclocking

For roughly 99% of users, the main practical benefit is summarized as: “Just bump your fan curve up” to keep temps down and maintain higher clocks.

Main Speakers / Sources

  • Primary speaker: The YouTube creator doing the tuning (mentions receiving the GPU from Splave and referencing leaderboard work).
  • Referenced sources/people/tools:
    • Splave (GPU sender / leaderboard presence)
    • USMUS (mentioned for Hydra, behind a Patreon paywall)
    • Gamdias (sponsor: Thor P2 power supplies)
    • MSI Afterburner
    • Speedway / Steel Nomad / 3DMark-like scoring (benchmark contexts referenced)
    • Card examples mentioned: 5090, 5090 FE, Lightning Z, ASUS Matrix, ROG 20th

Original video