RTX 5070 Ti Undervolt Guide: Settings and Results (2026)

By LK Wood IV · Published 2026-10-02 · ~10 min read · St. Louis County, MO

Start at 950 mV. In MSI Afterburner’s curve editor, lift the 950 mV point to the clock your card holds at stock, flatten everything to its right, and go 25 mV lower per test. Ten owner curves for this card sit between 850 and 950 mV, six of them between 900 and 935 mV. The best documented one is Esports Tales’ ASUS Prime: 935 mV at 2,955 MHz took Steel Nomad from 300 W to 250 W, games settled at 170 to 200 W, and the card ran about 4% faster.

Two things change how you read these numbers. The 5070 Ti sits at its 300 W limit in its heaviest games, so a lower voltage gives the boost algorithm room to clock higher, and several owner results are faster than stock as well as cooler. And every watt figure owners post is software telemetry, which ComputerBase found reading up to 15 W low on one card.

Eleven owner results, side by side

These come from owners in ComputerBase’s RTX 5070TI Undervolting thread (opened November 13, 2025) and its sister thread on the MSI Expert OC, from PCGH Extreme’s Undervolting 5070 Ti thread, and from the one author-measured test I could find, at Esports Tales. Each row is one owner’s card. The posts are self-reported, and “not given” means the owner did not post that figure.

The ten curve results with a voltage and a clock (onkuri counted at his top profile) run from 850 to 950 mV and from 2,617 to 3,050 MHz. Six sit between 900 and 935 mV. Three owners chose 925 mV, at 2,950 to 3,050 MHz. That arithmetic is mine. The clocks are set targets except albaum’s, which he read under load.

What I take from the table:

• Two routes stop at 250 W. Esports Tales’ curve and fuma.san’s plain power target both landed there from 300 W. ComputerBase’s review of the TUF Gaming OC found 250 W (83.3%) is the lowest power limit on both the TUF and MSI’s Ventus 3X OC. If 250 W is your goal, the power-target slider gets you there without a curve. fuma.san says the curve only earned its keep for him below that floor.
• Most of the saving comes early. albaum’s ladder dropped 28 W on the first rung, which also ran 92 MHz slower, and only 13 W more over the next four. The memory offset rose along the way, so the later rungs are not a clean voltage test.
• The lowest posted gaming draws came at 925 to 950 mV. Der_Gerät, Esports Tales and Listo ran 2,955 to 3,050 MHz there and report 155 to 220 W in most games, though Esports Tales saw 220 W and more in the heaviest ones. Going deeper costs speed. Nightlight 76 tried 860 mV at 2,700 MHz and found the performance noticeably lower, and the Ventus owner’s 850 mV profile at 2,617 MHz gave up about 3% to save about 80 W.

SabbY’s warning belongs next to all of it. He set up several 5070 Tis for colleagues, found 2,850 MHz at 900 mV usually worked best, and watched that setting fail on the next model he installed. Your card’s number comes from your card.

What the RTX 5070 Ti draws at stock

NVIDIA rates the RTX 5070 Ti at 300 W Total Graphics Power, a 2.45 GHz boost clock and 8,960 CUDA cores, and asks for a 750 W system supply with either two 8-pin cables through the adapter in the box or one PCIe Gen 5 cable rated for 300 W or more.

This card has no Founders Edition. ComputerBase’s launch review used MSI’s Ventus 3X OC, measured on February 19, 2025.

The Ventus reported 300 W in Metro Exodus while ComputerBase’s meter read 315 W, and the TUF Gaming OC in the follow-up test went the other way, reporting 300 W while it drew 295 W. Telemetry misses in both directions. A 10 W gap between two owners’ readings tells you nothing.

The stock clock depends on the game. In ComputerBase’s follow-up test the TUF Gaming OC held 2,700 to 2,707 MHz after 30 minutes of Metro Exodus. The Ventus held 2,707 MHz. In Final Fantasy XVI, which stays well under the limit, the Ventus ran 2,777 MHz. albaum’s TUF held 2,782 MHz at 1.035 V in Steel Nomad. Expect yours well above NVIDIA’s 2.45 GHz rating. Read it off your own card before you set a curve.

For a power supply, size for the card’s stock limit and spikes rather than the undervolted draw, because a failed profile load or a reset puts the card straight back there. The PSU wattage calculator does the build math, and the power cost calculator turns a 50 W saving into dollars at your rate and hours.

Why the power limit is locked on some cards

The board’s firmware sets the ceiling. In ComputerBase’s test, the Ventus 3X OC cannot go above 300 W at all, while the ASUS TUF Gaming OC allows up to 330 W in both its Performance and Quiet BIOS modes. Both go down to 250 W. A Gigabyte Eagle OC ICE owner in a separate ComputerBase thread reports the same 100% ceiling on his card.

A locked slider does not stop an undervolt. It needs no headroom above 100%. Der_Gerät’s 116% setting worked because his board allows it, and his card still peaked at 235 W. I would not flash a different BIOS to raise the limit. A curve is a software setting you can undo by loading a profile, and a BIOS flash is not.

What you need

• MSI Afterburner. Esports Tales’ Prime, albaum’s TUF and fuma.san’s Inno3D were all tuned in it, so the maker of your card does not matter.
• 3DMark Steel Nomad. Esports Tales points out that the free 3DMark demo includes Time Spy and Steel Nomad, and albaum ran his whole ladder in it.
• HWiNFO64 or another sensor logger, for the effective clock, core voltage, board power, GPU temperature and memory temperature. ComputerBase noted at launch that NVIDIA had stopped reporting a hotspot reading on Blackwell cards, so log the GPU and memory temperatures.
• Two or three of your own games, including one light one. The stability section explains why.

The complete GPU undervolting guide covers Afterburner’s settings screen and ASUS GPU Tweak III, and the RTX 5080 guide runs the same curve method on the bigger card built on the same GB203 chip.

Step 1: Record a stock baseline

Run Steel Nomad three times with HWiNFO64 logging. Write down the score or average FPS, the effective GPU clock, the core voltage, the board power and both temperatures. Then save these settings to an Afterburner profile slot. That slot is your way back.

The clock is the number that matters most. albaum’s first attempt shows why. He flattened the curve at 975 mV with a 2,785 MHz target, and the card ran 2,690 MHz, drew 267 W and scored 68 FPS, below its stock 69 to 70. The target in the editor is not what the card runs. Only the logged effective clock tells you.

Step 2: Set the first curve at 950 mV

1. Press Ctrl+F to open the voltage/frequency curve editor.
2. Click the 950 mV point and drag it up to your stock sustained clock from Step 1.
3. With that point selected, hold Shift and left-click to select every point to its right.
4. Press Shift+Enter twice to flatten the selected points to that clock.
5. Click Apply in Afterburner’s main window. Check that the curve is flat from 950 mV to the right, and repeat the flatten if it is not.

That is the same-clock route. Esports Tales takes a faster one. He types +450 into the Core Clock field in the main window first, which lifts the whole curve, then flattens at 935 mV, where his Prime landed at 2,955 MHz. His reason for raising the clock first is to prevent instability while the curve is being edited, and he writes that “almost any card can hold +400”. A Gigabyte Eagle OC ICE owner who dragged a single point to 3,000 MHz at 0.95 V got only about 2,800 MHz at 259 W. The reply he got was the same order: raise the clock first, then level every point after the one you want.

The card drifts off the set point. At a 925 mV curve Esports Tales’ Prime ran 920 mV, at 950 it ran 955, and at 935 it ran 930. The clock moves 20 to 40 MHz, he notes.

Step 3: Go lower, then go faster

1. Test 950 mV (Step 4). If it holds, repeat Step 2 at 925 mV with the same clock, then 900 mV. That is albaum’s 25 mV step size, and Esports Tales also recommends starting between 900 and 950 mV, with 850 to 875 mV for readers who want the largest saving.
2. At the first crash or lower score, go back up one step. That voltage is your floor for that clock. Esports Tales’ fix for an unstable curve is to drop the clock 25 to 30 MHz, raise the voltage 25 mV, or both.
3. To trade some of the saving for speed, hold the voltage and raise the flattened clock in 25 to 50 MHz steps, the increment fuma.san uses for the Core Clock field. Stop at the first failure and go back one or two steps.
4. Add a memory offset last, and test it on its own. The table’s owners ran +1,000 to +3,000; Afterburner capped the slider at +2,000 when Esports Tales wrote in March 2025, and fuma.san says +3,000 works in the newest version. Listo and Esports Tales give the same warning. Memory pushed too far often does not crash, because error correction steps in and the frame rate drops instead. Compare your score with and without the offset.

Step 4: Test it properly

This is the step that decides whether the undervolt is worth anything, and the 5070 Ti threads show the same failure again and again.

Benchmarks only test the top of the curve. Steel Nomad runs the card at full load, so it only exercises the flattened point. fuma.san’s explanation in the PCGH thread is that a curve raised across its whole range can be unstable at partial load while it looks stable in every benchmark, because benchmarks always run the card at 100%. That shows up as random crashes. The owner who replied had exactly that, crashing in Valorant after following a video that lifted the whole curve. ComputerBase forum user Azghul0815 makes the related point that a flattened curve caps the clock at light load too, where an uncapped one can overshoot and crash.

So run all three of these before you keep a setting:

• Steel Nomad, the same benchmark as your baseline, for the score and the watts.
• Your heaviest games for an hour or more, with ray tracing on. Steel Nomad does not use ray tracing, Esports Tales points out, so he adds Cyberpunk 2077, Alan Wake 2 or another heavy ray-traced game to the games you play daily.
• A light game, or a menu-heavy one, for an evening. An esports title at a high frame rate, or anything that holds the card well below full load, exercises the lower part of the curve.

Treat a crash to desktop, a black screen, a driver reset or a lower score than the step before as a failure, and go one step back up. SabbY adds that an undervolt can hold for days or weeks before a crash shows up, so if one game starts crashing weeks later, raise the voltage one step before you blame the game. A setting that hangs or resets the display driver can also look like a driver fault; the GPU driver crash guide covers that path once the undervolt is ruled out.

Watch the memory temperature if the fans slow down. The PCGH thread’s Ventus owner found his GPU cooler and quieter after undervolting, then noticed the memory reaching 76 to 80 °C in games because the fans were spinning slower. Gurdi, who wrote PCGH’s own 5070 Ti tuning guide, replied that on cheaper boards the cooler’s contact with the memory and voltage regulators can need a minimum fan speed. The owner steepened his fan curve to 70% at 65 °C, and the GPU fell to 61 to 62 °C and the memory to 72 to 74 °C, still quieter than stock. On a budget board, set the fan curve after the undervolt and check the memory reading under load.

Step 5: Make it stick

Only after the curve has passed Step 4:

1. Click the lock icon so the profile slots can be changed.
2. Turn on Apply overclocking at system startup.
3. Click Save and choose a profile slot other than your stock one.
4. Lock the profiles again.
5. In Settings, turn on Start with Windows.

That is Esports Tales’ sequence. Leave startup application off while you are still testing, because an unstable curve that loads at boot is harder to back out of. To undo it, load the stock profile.

One quirk to know about. A ComputerBase owner with an MSI Expert OC found his idle clock sometimes stuck around 2,600 MHz after a cold start, then settled back to about 180 MHz and 28 W after another restart. The suggestion he got was to apply the undervolt only to a 3D profile, or to load it when a game starts.

The plain power-limit alternative

If you want less heat and noise and do not want to manage a curve, fuma.san’s settings are the simplest result in the table. Set the power target to its minimum, 83% on his card, add the memory offset and test it, then raise the core clock in 25 to 50 MHz steps until it fails and back off one or two steps. His Inno3D went from 300 W to 250 W and ran about 6% faster. He reckons that gets you 80 to 90% of what the curve does, and the curve only pulls ahead below that 250 W floor.

Compared with the other cards

The RX 9070 XT undervolt guide shows the same pattern in ComputerBase’s Sapphire Pulse test: held at its power limit, that card turns a lower voltage into clock speed. AMD’s control there is a voltage-offset slider rather than a curve. The RTX 5070 Ti vs RX 9070 XT comparison weighs the two at stock, and RTX 5070 Ti vs 5080 covers the step up. Results for other cards, each with its source, are in the GPU undervolt settings database, which carries the Esports Tales row above.

PCGH has published a 5070 Ti tuning guide with an undervolting section, behind its paywall, and I have not read it. Of the results I could open, the Esports Tales run is the only one taken by a writer on his own card, and the rest are owner posts.

Sources

• Esports Tales, How to undervolt the 5070 Ti with MSI Afterburner, Vincenzo Milella, March 14, 2025 (the author’s ASUS Prime RTX 5070 Ti OC; +450 MHz core and +1,500 memory; 935 mV at 2,955 MHz; 250 W against 300 W in Steel Nomad, 170 to 200 W in most games; about 4%; fans and temperatures; the Ctrl+F, Shift-click and Shift+Enter steps; voltages read at 925, 935 and 950 mV curves; the free 3DMark demo; the startup and profile steps). Read 2026-10-02.
• ComputerBase forum, RTX 5070TI Undervolting, opened November 13, 2025 (albaum’s ASUS TUF Gaming OC ladder, posted November 14, 2025; Nightlight 76, SabbY, onkuri, TSB, Listo and Der_Gerät’s settings, November 13, 2025 to January 2, 2026). Read 2026-10-02.
• ComputerBase forum, RTX 5070 Ti Expert OC – OC Scanner Curve vs. manuelles Undervolting, January 11 to 13, 2026 (JPsy’s Gigabyte Gaming OC at 925 mV and 2,960 MHz; the idle-clock report and the 3D-profile suggestion). Read 2026-10-02.
• ComputerBase forum, Gigabyte RTX 5070ti, Undervolting Kurve wird nicht übernommen, January 16, 2026 (the Eagle OC ICE’s 100% power-limit ceiling; the curve that ran about 2,800 MHz instead of 3,000; raise the clock first, then level the points; Azghul0815 on the clock cap). Read 2026-10-02.
• PCGH Extreme, Undervolting 5070 Ti, December 26, 2025 to April 16, 2026 (fuma.san’s Inno3D X3 OC at 83% power target, 250 W against 300 W and about 6%; the partial-load instability explanation and the Valorant crashes; the 25 to 50 MHz steps; the Ventus 3X OC owner’s 850 mV, 2,617 MHz and +1,000 memory profile with its 3% and 80 W, posted December 26 and 30, 2025, and the temperatures and fan curve, January 2, 2026; Gurdi on memory and VRM cooling on cheaper boards). Read 2026-10-02.
• ComputerBase, Nvidia GeForce RTX 5070 Ti im Test, page 1, Wolfgang Andermahr, February 19, 2025 (no Founders Edition, so the review card is MSI’s Ventus 3X OC; the GB203 GPU shared with the RTX 5080). Read 2026-10-02.
• ComputerBase, Nvidia GeForce RTX 5070 Ti im Test: Lautstärke, Temperatur, Leistungsaufnahme und OC, Wolfgang Andermahr, February 19, 2025 (MSI Ventus 3X OC; 265 W suite average and 211 W lowest by telemetry; 315 W measured against 300 W reported; 364 W spikes; the 144 FPS cap figures; desktop idle; 2,777 MHz in Final Fantasy XVI; the missing hotspot sensor). Read 2026-10-02.
• ComputerBase, Asus GeForce RTX 5070 Ti TUF Gaming OC im Test, February 20, 2025, and its page 3 (the TUF Gaming OC at 2,700 to 2,707 MHz and the Ventus at 2,707 MHz after 30 minutes of Metro Exodus; the TUF’s 330 W ceiling in both BIOS modes; the Ventus locked at 300 W; the 250 W, 83.3% floor; the TUF at 295 W measured against 300 W reported). Read 2026-10-02.
• NVIDIA, GeForce RTX 5070 family specifications (RTX 5070 Ti at 300 W Total Graphics Power, 750 W required system power, 2.45 GHz boost, 8,960 CUDA cores, the power connectors). Read 2026-10-02.