mVolt+ v0.36 gives users direct control over power channels and voltage for NVIDIA Blackwell GPUs, bypassing the limits set in the graphics card firmware. This matters because it allows owners of high-end cards like the RTX 5080 and RTX 5090 to push their hardware far beyond official specifications without physical modifications. We are seeing power draws that exceed the designed thermal and power envelopes by significant margins, which changes how enthusiasts approach benchmarking and gaming performance.
Software tool ignores manufacturer caps for extreme benchmark scores
The update targets the GeForce RTX 5080 and RTX 5090, with specific reports highlighting the ASUS ROG Astral RTX 5080 OC model. While ASUS provides an official BIOS tool that caps the maximum Total Graphics Power (TGP) at 450W for that specific card, mVolt+ ignores these software locks. Users can now manipulate the XBAR clock and voltage settings to achieve frequencies and power states that the manufacturer intended to restrict.
Community reports indicate that the RTX 5080 is drawing more than 680W in FurMark stress tests, while the RTX 5090 reaches around 700W. These figures are nearly double the typical power limits for these cards. In 3DMark benchmarks, the RTX 5080 achieved 11,017 points in Steel Nomad and 11,012 points in Speed Way. The RTX 5090 operated at gaming clocks between 3.15 and 3.20 GHz with the XBAR clock set to 2.8 GHz.
The performance gains from this extreme power consumption are modest compared to the energy cost. An RTX 5090 owner reported that the high-power profile consumes more than 200W above their undervolted configuration for around 10 FPS more at best. Despite the low efficiency, the utility is reshuffling benchmark leaderboards, with RTX 5080 users moving into the highest positions after adding XBAR and voltage tuning through mVolt.
The mVolt developer warns that this is an extreme overclocking tool that may cause damage to your graphics card if you do not know what you are doing. Using such overclocking tools will also void your warranty. The developer also warns that GPU tuning can cause crashes or hardware damage. We looked at the last mVolt+ update earlier while tracking NVIDIA launches, and several of the same balance and stability themes came up. The confirmed facts show that the software enables these extreme states, but the long-term stability and hardware safety remain unverified.
mVolt+ v0.36 successfully enables RTX 50 series GPUs to exceed VBIOS power limits without shunt modifications. The utility provides direct power channel and voltage controls for NVIDIA Blackwell GPUs. Users report RTX 5080 drawing 680W and RTX 5090 drawing ~700W without shunt modifications. Official ASUS ROG Astral RTX 5080 OC BIOS limits TGP to 450W. High power draws yield minimal gaming FPS gains (~10 FPS) compared to significant power cost. Utility is reshuffling 3DMark benchmarks, with RTX 5080 users reaching 11,000+ points.
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