Buying Guide
The Best Power Supplies for the RTX 4070 Ti and Ti Super
Six 750W and 850W units with native 12V-2x6 cables for the RTX 4070 Ti and Ti Super, which NVIDIA pairs with 700W.
By The PC Journal editorial team
12 min read6 products evaluated
NVIDIA recommends a 700W power supply for the RTX 4070 Ti and RTX 4070 Ti Super. Both use a 16-pin connector, so a 750W unit with a native 12V-2x6 cable suits either.
We compared wattage, connectors and ratings from the power supply listings against the card maker's guidance; we did not load-test these units.
Quick Picks
Our 6 recommendations at a glance. Tap a pick for the full verdict.
Best Match for an RTX 4070 Ti
be quiet! Pure Power 13 M 750W
750W with Cybenetics Platinum and four PCIe 8-pin connectors.
Best for: Most RTX 4070 Ti builds.
Our take Check price for be quiet! Pure Power 13 M 750W (opens in a new tab)
Best Budget Pick
SAMA GT750
750W with Japanese capacitors and an ECO silent mode.
Best for: Keeping cost down.
Best be quiet! Value
be quiet! Pure Power 12 750W
Three PCIe 8-pin connectors plus a 12V-2x6.
Best for: Quiet builds.
Our take Check price for be quiet! Pure Power 12 750W (opens in a new tab)
Best SFX Pick
LIAN LI SP750 V2
An SFX unit with a two-tone 12V-2x6 cable.
Best for: Small form factor builds.
Our take Check price for LIAN LI SP750 V2 (opens in a new tab)
Best Warranty
MSI MAG A750GL PCIE5
A 10-year warranty.
Best for: Long-term builds.
Our take Check price for MSI MAG A750GL PCIE5 (opens in a new tab)
Best 850W Headroom
Rosewill VMG 850W
850W Gold with support for GPU power spikes.
Best for: High-power CPUs.
Our take Check price for Rosewill VMG 850W (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| 750W with Cybenetics Platinum and four PCIe 8-pin connectors. | Most RTX 4070 Ti builds. | Check price for be quiet! Pure Power 13 M 750W (opens in a new tab) |
| 750W with Japanese capacitors and an ECO silent mode. | Keeping cost down. | Check price for SAMA GT750 (opens in a new tab) |
| Three PCIe 8-pin connectors plus a 12V-2x6. | Quiet builds. | Check price for be quiet! Pure Power 12 750W (opens in a new tab) |
| An SFX unit with a two-tone 12V-2x6 cable. | Small form factor builds. | Check price for LIAN LI SP750 V2 (opens in a new tab) |
| A 10-year warranty. | Long-term builds. | Check price for MSI MAG A750GL PCIE5 (opens in a new tab) |
| 850W Gold with support for GPU power spikes. | High-power CPUs. | Check price for Rosewill VMG 850W (opens in a new tab) |
Our Picks
Best Match for an RTX 4070 Ti1 of 6
be quiet! Pure Power 13 M 750W on Amazon (opens in a new tab)
be quiet!'s Pure Power 13 M 750W offers four PCIe 8-pin connectors plus a native 12V-2x6, and its fan switches off at low load.
Best for
- Most RTX 4070 Ti builds.
Skip if
- Skip it if you need to know its warranty before buying; the maker doesn't publish one.
Why we like it
Cybenetics rates it Platinum. Its fan stops completely at low load, and one strong 12V rail handles GPU power spikes. LLC topology gives tight voltage regulation.
It matches the SAMA GT750, the be quiet! Pure Power 12 750W, the LIAN LI SP750 V2 and the MSI MAG A750GL PCIE5 on rated output (750W). No depth is rated for the be quiet! Pure Power 13 M 750W, so check the maker's page against your case's PSU bay. If you want a confirmed warranty, look to the LIAN LI SP750 V2 instead: it offers 10 years, while this one gives no figure.
Key dimensions & specs
- Wattage: 750W
- Native 12V-2x6 cables: 1
- PCIe 8-pin connectors: 4
- 80 Plus rating: Gold
- Cybenetics rating: Platinum
- ATX version: ATX 3.1
- Form factor: ATX
- Fan stop: Yes
- Colour: Black
Pros
- A 750W rating
- A native 12V-2x6 cable for 16-pin cards
- 4 PCIe 8-pin connectors for older cards
- ATX 3.1 compliance
Cons
- No published warranty
- Costs more than the SAMA GT750 at the time of writing
Best Budget Pick2 of 6
SAMA GT750 on Amazon (opens in a new tab)
SAMA's GT750 uses Japanese capacitors with an LLC and DC-DC design, a native 12V-2x6 cable and an ECO silent mode for low loads.
Best for
- Keeping cost down.
Skip if
- Its warranty is not published, which rules it out if you need that number.
Why we like it
Its ECO silent mode keeps the 120mm FDB fan quiet at low load, and Japanese capacitors with LLC and DC-DC topology support long-term stability. Embossed modular cables are easier to route. Its embossed modular cables improve airflow and make routing simpler.
On rated output it ties with the be quiet! Pure Power 13 M 750W, the be quiet! Pure Power 12 750W, the LIAN LI SP750 V2 and the MSI MAG A750GL PCIE5 at 750W. The SAMA GT750 comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. No depth is rated for the SAMA GT750, so check the maker's page against your case's PSU bay.
It undercut the Rosewill VMG 850W and every other pick on price at the time of writing. The maker doesn't give its 8-pin PCIe connector count; if that figure matters, the be quiet! Pure Power 13 M 750W offers 4.
Key dimensions & specs
- Wattage: 750W
- Native 12V-2x6 cables: 1
- Cybenetics rating: Gold
- ATX version: ATX 3.1
- Form factor: ATX
- Cabling: Fully modular
- Fan: 120mm
- Fan stop: Yes
- Colour: Black
Pros
- A 750W rating
- A native 12V-2x6 cable for 16-pin cards
- ATX 3.1 compliance
- Fully modular cables
Cons
- No published warranty
Best be quiet! Value3 of 6
be quiet! Pure Power 12 750W on Amazon (opens in a new tab)
be quiet!'s Pure Power 12 750W pairs a native 12V-2x6 with three PCIe 8-pin connectors, cooled by a temperature-controlled 120mm fan.
Best for
- Quiet builds.
Skip if
- Its warranty is not published, which rules it out if you need that number.
Why we like it
Its airflow-optimised fan blades reduce turbulence, which helps keep it quiet under a gaming load. It suits a mid-range build that still uses an 8-pin graphics card, and be quiet! designs it to handle short power excursions from the GPU. On rated output it ties with the be quiet! Pure Power 13 M 750W, the SAMA GT750, the LIAN LI SP750 V2 and the MSI MAG A750GL PCIE5 at 750W.
No depth is rated for the be quiet! Pure Power 12 750W, so check the maker's page against your case's PSU bay. On price it sat third of 6, between the cheaper Rosewill VMG 850W and the pricier be quiet! Pure Power 13 M 750W, at the time of writing. The maker doesn't give its warranty; if that figure matters, the LIAN LI SP750 V2 offers 10 years.
Key dimensions & specs
- Wattage: 750W
- Native 12V-2x6 cables: 1
- PCIe 8-pin connectors: 3
- 80 Plus rating: Gold
- ATX version: ATX 3.1
- Form factor: ATX
- Fan: 120mm
- Colour: Black
Pros
- A 750W rating
- A native 12V-2x6 cable for 16-pin cards
- ATX 3.1 compliance
- Temperature-controlled 120mm be quiet! fan
Cons
- No published warranty
- Costs more than the SAMA GT750 at the time of writing
Best SFX Pick4 of 6
LIAN LI SP750 V2 on Amazon (opens in a new tab)
Lian Li's SP750 V2 is an SFX unit with a two-tone 12V-2x6 cable that shows whether the plug is fully seated.
Best for
- Small form factor builds.
Skip if
- Price-first buyers should look at the SAMA GT750, which cost less when we checked.
Why we like it
It has a 10-year warranty. A 92mm FDB fan keeps it quiet, and its upgraded 3A standby rail helps USB devices while the PC sleeps. Lian Li backs it with 10-year hardware protection.
On rated output it ties with the be quiet! Pure Power 13 M 750W, the SAMA GT750, the be quiet! Pure Power 12 750W and the MSI MAG A750GL PCIE5 at 750W. It matches the MSI MAG A750GL PCIE5 on warranty (10 years). The LIAN LI SP750 V2 comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter.
It was the highest-priced of the 6 picks at the time of writing, so the case for it rests on what it adds over the MSI MAG A750GL PCIE5 and the rest. The maker doesn't give its 8-pin PCIe connector count; if that figure matters, the be quiet! Pure Power 13 M 750W offers 4.
Key dimensions & specs
- Wattage: 750W
- Native 12V-2x6 cables: 1
- Warranty: 10 years
- 80 Plus rating: Gold
- ATX version: ATX 3.1
- Form factor: SFX
- Cabling: Fully modular
- Fan: 92mm
- Colour: Black
Pros
- A 750W rating
- A native 12V-2x6 cable for 16-pin cards
- A 10-year warranty
- ATX 3.1 compliance
Cons
- Costs more than the SAMA GT750 at the time of writing
Best Warranty5 of 6
MSI MAG A750GL PCIE5 on Amazon (opens in a new tab)
MSI's MAG A750GL PCIE5 is a fully modular 750W unit with a native 12V-2x6 cable and a 10-year warranty, in a compact body.
Best for
- Long-term builds.
Skip if
- Skip it if rated output matters most to you; the Rosewill VMG 850W offers 850W.
Why we like it
It is 80 Plus Gold rated and carries a 10-year limited warranty. It matches the be quiet! Pure Power 13 M 750W, the SAMA GT750, the be quiet! Pure Power 12 750W and the LIAN LI SP750 V2 on rated output (750W). It also comes with a compact body MSI markets for easier fitting.
No depth is rated for the MSI MAG A750GL PCIE5, so check the maker's page against your case's PSU bay. It also brings ATX 3.1 compliance. Rated output is its weakest area, and the Rosewill VMG 850W covers it better at 850W.
Key dimensions & specs
- Wattage: 750W
- Native 12V-2x6 cables: 1
- Warranty: 10 years
- 80 Plus rating: Gold
- ATX version: ATX 3.1
- Form factor: ATX
- Cabling: Fully modular
- Colour: Black
Pros
- A 750W rating
- A native 12V-2x6 cable for 16-pin cards
- A 10-year warranty
- ATX 3.1 compliance
Cons
- Rated output trails the Rosewill VMG 850W (850W)
- Costs more than the SAMA GT750 at the time of writing
Best 850W Headroom6 of 6
Rosewill VMG 850W on Amazon (opens in a new tab)
Rosewill's VMG 850W offers a native 12V-2x6 cable and support for large GPU power spikes, on a fully modular 80 Plus Gold design.
Best for
- High-power CPUs.
Skip if
- Choose another pick if you can't accept this: a shorter 5-year warranty.
Why we like it
Its compact 140mm-deep chassis is 35% smaller than a standard ATX unit, which helps in small cases. Six protections guard against overcurrent, overpower, overtemperature, overvoltage, short circuit and undervoltage. Its steel shell has large vents, and a 120mm FDB fan handles cooling.
Its 850W rated output is the highest here; the be quiet! Pure Power 13 M 750W comes next at 750W. Its 5 years warranty is the shortest in this group; the LIAN LI SP750 V2 leads at 10 years. The Rosewill VMG 850W comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter.
On price it sat second of 6, between the cheaper SAMA GT750 and the pricier be quiet! Pure Power 12 750W, at the time of writing. The trade-off is native 12V-2x6 cable count; for more, the be quiet! Pure Power 13 M 750W offers 1.
Key dimensions & specs
- Wattage: 850W
- Native 12V-2x6 cables: 1
- Warranty: 5 years
- 80 Plus rating: Gold
- Form factor: ATX
- Cabling: Fully modular
- Fan: 120mm
- Colour: Black
Pros
- A 850W rating
- A native 12V-2x6 cable for 16-pin cards
- Fully modular cables
- Listed support for large GPU power excursions
Cons
- A shorter 5-year warranty
- Warranty trails the LIAN LI SP750 V2 (10 years)
- Costs more than the SAMA GT750 at the time of writing
How We Chose
Each pick was assessed across 4 criteria weighted for real-world use.
- Wattage
- We compared rated output with NVIDIA's or AMD's recommended system power for the card.
- Standards
- We noted ATX version, 80 Plus and Cybenetics ratings.
- Connectors
- We recorded native 12V-2x6 cables and PCIe 8-pin connectors where the listing states them.
- Build and warranty
- We checked depth, modular cabling, fan-stop modes and warranty length.
What to Look for in a PSUs for RTX 4070 Ti
Key buying criteria so you get the right fit the first time.
Start from the card maker's PSU figure
NVIDIA and AMD publish a recommended total system power for each card, and partner cards often state their own. Treat that figure as the floor, then add headroom for a high-power CPU.
More wattage than you need does not harm anything; it mostly costs money.
Match the power connector
Most RTX 40 and RTX 50 cards use a single 16-pin 12V-2x6 (12VHPWR) plug, while many Radeon cards use two or three 8-pin plugs. A native cable avoids bulky adapters.
Push the 16-pin plug fully home and avoid a sharp bend right at the connector.
Check depth and cabling
Deeper units can clash with drive cages or front radiators. Fully modular cables make routing easier in tight cases.
Compare efficiency ratings
80 Plus and Cybenetics ratings describe how much power turns into heat. Gold is the usual target for a gaming PC; Platinum and Titanium run cooler and cost more.
Prefer ATX 3.1
ATX 3.1 units are designed for the brief power spikes modern graphics cards produce and ship with the revised 12V-2x6 connector. Older units can still work, but check the maker's guidance for your card.
Use the warranty as a quality signal
Long warranties of seven to twelve years show how long a maker expects a unit to last. A power supply often moves from one build to the next, so the warranty matters.
How to Choose a PSUs for RTX 4070 Ti
By priority
| Priority | Consider | Why |
|---|---|---|
| Most RTX 4070 Ti builds | be quiet! Pure Power 13 M 750W | 750W with Cybenetics Platinum and four PCIe 8-pin connectors |
| Keeping cost down | SAMA GT750 | 750W with Japanese capacitors and an ECO silent mode |
| Quiet builds | be quiet! Pure Power 12 750W | Three PCIe 8-pin connectors plus a 12V-2x6 |
| Small form factor builds | LIAN LI SP750 V2 | An SFX unit with a two-tone 12V-2x6 cable |
| Long-term builds | MSI MAG A750GL PCIE5 | A 10-year warranty |
| High-power CPUs | Rosewill VMG 850W | 850W Gold with support for GPU power spikes |
Scroll sideways to see every column.
Key specs side by side
Figures as each maker states them.
| Power supplie | Wattage | Native 12V-2x6 cables | PCIe 8-pin connectors | Warranty |
|---|---|---|---|---|
| be quiet! Pure Power 13 M 750W | 750W | 1 | 4 | Not listed |
| SAMA GT750 | 750W | 1 | Not listed | Not listed |
| be quiet! Pure Power 12 750W | 750W | 1 | 3 | Not listed |
| LIAN LI SP750 V2 | 750W | 1 | Not listed | 10 years |
| MSI MAG A750GL PCIE5 | 750W | 1 | Not listed | 10 years |
| Rosewill VMG 850W | 850W | 1 | Not listed | 5 years |
Scroll sideways to see every column.
By price at the time of writing
Prices change often; these tiers reflect Amazon prices when this guide was updated.
| Price tier | Power supplies |
|---|---|
| About $50 to $100 | SAMA GT750, Rosewill VMG 850W, be quiet! Pure Power 12 750W, be quiet! Pure Power 13 M 750W, MSI MAG A750GL PCIE5 |
| About $100 to $150 | LIAN LI SP750 V2 |
Frequently Asked Questions
Can I reuse the power supply from my old PC?
Only if it meets the card's wattage and connector needs and is still under warranty or in good health. Very old units lack modern connectors.
How much headroom should I leave above the recommended wattage?
The card maker's figure already covers a typical system. Add 100 to 150W if you run a high-power CPU or plan a bigger card later.
Can I use the 16-pin adapter that came with my graphics card?
Yes, if it is the maker's own adapter and every 8-pin plug on it is connected. A native 12V-2x6 cable is tidier and has fewer joins.
Does a Platinum unit save much on electricity?
Only a little for most gaming PCs. The main gains are less heat and often a quieter fan.
Can I use an SFX power supply?
Yes, if the case supports SFX and the unit meets the wattage and connector needs of your card. SFX units cost more per watt.
Is an ATX 3.0 power supply still fine?
Generally yes. ATX 3.1 mainly revises the connector to 12V-2x6 and relaxes some spike requirements; check your unit's cable is rated for your card.
Bottom Line
be quiet!'s Pure Power 13 M 750W is the best-matched unit here. SAMA's GT750 is the budget choice, Lian Li's SP750 V2 suits small cases, and Rosewill's VMG 850W adds headroom.