Will undervolting your GPU actually lower your FPS?

No, not if you do it right. Undervolting cuts the voltage your GPU pulls at a given clock speed, so the card runs cooler and quieter, and in most games you lose nothing measurable. Push it too far and you will hit a driver crash or a black screen long before you see a frame rate drop.

GPU tier	Typical stock power draw	Safe undervolt starting point	What you gain
Entry (RTX 5060 class)	115 to 145W	-50mV to -75mV	5 to 8°C cooler, near-silent fans
Mid (RTX 5060 Ti / 5070)	150 to 220W	-75mV to -100mV	8 to 12°C cooler, same benchmark scores
High (RTX 5070 Ti / 5090)	220 to 575W	-50mV to -80mV, smaller headroom	Meaningfully lower noise, same frame times

What does undervolting actually change?

Every modern GPU runs on a voltage-frequency curve set by the manufacturer with a safety margin built in, because the card has to work in a hot cabinet with mediocre airflow just as reliably as it works on an open test bench with three fans pointed at it. Undervolting means telling the card it can hit the same clock speed at a lower voltage than that default curve allows. Lower voltage means less heat.

Less heat means the card holds its boost clock longer instead of throttling back after ninety seconds of gaming. That is the whole trick, and it is fully reversible if the result does not suit you.

How much FPS do you actually lose?

Almost none, and sometimes you gain a little. Most games are not limited by raw voltage, they are limited by how long the card can sustain its boost clock before thermal or power limits pull it down. A card running 8 to 10 degrees cooler because of a sensible undervolt often holds its highest boost bin for longer than the same card at stock settings, especially in a closed cabinet during a Delhi summer. The loss shows up only if you undervolt aggressively enough that the card drops out of its highest stable clock bin entirely, and at that point you will see stutters and crashes well before you notice a missing frame or two.

Where do people actually go wrong?

Two mistakes, both common. First, people copy someone else's undervolt curve off a forum instead of testing their own card, and every card, even the same model, has some silicon variance. Second, people stop testing the moment a game runs fine for ten minutes. Run a stress test like FurMark or a 45-minute session of whatever you actually play before you trust a curve, because instability at hour two is the normal failure mode, not instability at minute five.

From the floor

We have not logged hard numbers on this yet, and it seemed more honest to say that than to make one up. What Shivam sees on the bench most weeks is the same story on repeat: a card that is "randomly" crashing turns out to be running at 84 to 87°C inside a cabinet with one intake fan and no exhaust, and a five-minute undervolt on the same card, in the same case, fixes it without touching the airflow at all. That is not a formal study. It is what happens when you put your hands on enough machines.

"Cards do not fail from being undervolted. They fail from being run hot for two years and nobody looked," Shivam says.

Illustration generated with AI.

FAQ

Does undervolting void my GPU warranty?
No. Undervolting is done through software like MSI Afterburner adjusting the curve within the card's own firmware limits, not through hardware modification, and it draws less power and less heat than stock. It is not the same as overclocking past the card's rated limits, which some manufacturers do treat differently for warranty purposes.

Is undervolting the same as power limiting?
Related but not identical. A power limit caps total wattage and lets the card manage voltage and clocks itself, which is simpler but less precise. Undervolting sets a specific voltage for a specific clock, which usually holds a higher sustained clock at the same or lower power draw than a blunt power limit.

Will undervolting help if my case has bad airflow?
It helps, but it does not fix a truly starved case. A -75mV undervolt on a card getting no fresh air will still run hotter than a stock card in a case with proper intake and exhaust. Fix the airflow first if you can, and undervolt on top of that.

Do I need to undervolt the CPU too?
Not for the same reason. CPU undervolting is a separate process, usually through BIOS or a tool like Intel XTU or Ryzen Master, and it is worth doing on the same logic, but the software and the safe ranges are different. Treat it as a separate project.

Which cards benefit the most from undervolting?
Higher end cards with big power budgets, because they have the most thermal headroom to give back. An RTX 5070 Ti class card can often drop 40 to 60 watts with a careful curve and barely move in benchmarks. A GT1030 class card has so little power draw to begin with that undervolting it is not worth the effort.

Bring your card model to the store and Shivam will show you a starting curve on the bench before you touch anything at home. If you are shopping for a new card and want one that already runs cool at stock, ask about the MSI GeForce RTX 5060 Ti Ventus 2X OC Plus 8GB, priced at ₹47,800 as of 10 September 2026, or the MSI GeForce RTX 5070 Ti Ventus 3X OC 16GB at ₹1,13,800 as of 10 September 2026.

Related: Why did my SSD get slower after a Windows update? · Is MSI Afterburner still worth installing in 2026? · 40 things every PC owner should know

Shivam Chandravansi builds and stress-tests every machine that leaves the Get Right PC floor. Published 10 September 2026.