Buying Guide
The Best 750W Gold-or-Better PSUs
Five power supplies compared, from the darkFlash DG750 to the CORSAIR SF750, with the trade-offs of each named.
By The PC Journal editorial team
12 min read5 products evaluated
80 Plus Gold or better wastes less power as heat. Every pick is 750W and rated Gold, Platinum or Titanium, ordered from the lowest price.
This is a research roundup, not a lab test: wattage, native 12V-2x6 cables and warranty come from each maker's published specs; a missing native 12V-2x6 cables is flagged, not filled in, and no figure here comes from our own testing.
Quick Picks
Our 5 recommendations at a glance. Tap a pick for the full verdict.
Lowest Price Here
darkFlash DG750
A lower price than the ASRock Phantom Gaming PG-750G and the rest when we checked.
Best for: Spending as little as possible.
Our take Check price for darkFlash DG750 (opens in a new tab)
Also Consider
ASRock Phantom Gaming PG-750G
A 90-degree 12V-2x6 cable with a temperature sensor.
Best for: Buyers who want 90-degree 12V-2x6 cable with a temperature sensor.
Our take Check price for ASRock Phantom Gaming PG-750G (opens in a new tab)
Strong Alternative
LIAN LI SP750 V2
A two-tone 12V-2x6 cable that shows whether it is seated.
Best for: Buyers who want two-tone 12V-2x6 cable that shows whether it is seated.
Our take Check price for LIAN LI SP750 V2 (opens in a new tab)
Worth a Look
Seasonic Focus GX-750 (ATX 3.1)
Hybrid fan control with a 135mm FDB fan.
Best for: Buyers who want hybrid fan control with a 135mm FDB fan.
Our take Check price for Seasonic Focus GX-750 (ATX 3.1) (opens in a new tab)
Premium Pick
CORSAIR SF750 (2024)
A 92mm PWM fan at the highest price in the group.
Best for: Buyers for whom price is not the deciding factor.
Our take Check price for CORSAIR SF750 (2024) (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| A lower price than the ASRock Phantom Gaming PG-750G and the rest when we checked. | Spending as little as possible. | Check price for darkFlash DG750 (opens in a new tab) |
| A 90-degree 12V-2x6 cable with a temperature sensor. | Buyers who want 90-degree 12V-2x6 cable with a temperature sensor. | Check price for ASRock Phantom Gaming PG-750G (opens in a new tab) |
| A two-tone 12V-2x6 cable that shows whether it is seated. | Buyers who want two-tone 12V-2x6 cable that shows whether it is seated. | Check price for LIAN LI SP750 V2 (opens in a new tab) |
| Hybrid fan control with a 135mm FDB fan. | Buyers who want hybrid fan control with a 135mm FDB fan. | Check price for Seasonic Focus GX-750 (ATX 3.1) (opens in a new tab) |
| A 92mm PWM fan at the highest price in the group. | Buyers for whom price is not the deciding factor. | Check price for CORSAIR SF750 (2024) (opens in a new tab) |
Our Picks
Lowest Price Here1 of 5
darkFlash DG750 on Amazon (opens in a new tab)
darkFlash's DG750 is a 140mm-deep 80 Plus Gold unit with a native 12V-2x6 cable and a hydraulic-bearing fan.
Best for
- Spending as little as possible.
Skip if
- Look at the others if this bothers you: a shorter 5-year warranty.
Why we like it
Its warranty is 5 years. It is fully modular with a quiet HDB fan, 80 Plus Gold rated, and backed by a 5-year limited warranty. Its fully modular cables reduce clutter for first-time builders.
Its 5 years warranty is the shortest in this group; the ASRock Phantom Gaming PG-750G leads at 10 years. It also offers a 140mm body that leaves room for cables. The darkFlash DG750 comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter.
At 140mm deep, compare it with your case's PSU clearance before buying. It undercut the ASRock Phantom Gaming PG-750G and every other pick on price at the time of writing.
Key dimensions & specs
- Wattage: 750W
- Native 12V-2x6 cables: 1
- Warranty: 5 years
- Depth: 140mm
- 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 short 140mm body
- ATX 3.1 compliance
Cons
- A shorter 5-year warranty
- Warranty trails the ASRock Phantom Gaming PG-750G (10 years)
Also Consider2 of 5
ASRock Phantom Gaming PG-750G on Amazon (opens in a new tab)
ASRock's Phantom Gaming PG-750G has a 90-degree 12V-2x6 cable with a temperature sensor, braided cables and a 10-year warranty.
Best for
- Buyers who want 90-degree 12V-2x6 cable with a temperature sensor.
Skip if
- If budget leads, the darkFlash DG750 was cheaper at our last price check.
Why we like it
It is 150mm deep and rated Cybenetics Platinum. It is fully modular with braided cables and a 90-degree PCIe 5.1 connector that has a temperature sensor. ASRock rates its efficiency 2% above the Gold standard.
The ASRock Phantom Gaming PG-750G comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. At 150mm deep, compare it with your case's PSU clearance before buying. Another plus is ATX 3.1 compliance. When we checked, only the darkFlash DG750 cost less, and the LIAN LI SP750 V2 cost more.
Key dimensions & specs
- Wattage: 750W
- Native 12V-2x6 cables: 1
- Warranty: 10 years
- Depth: 150mm
- 80 Plus rating: Gold
- Cybenetics rating: Platinum
- 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
- Costs more than the darkFlash DG750 at the time of writing
Strong Alternative3 of 5
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
- Buyers who want two-tone 12V-2x6 cable that shows whether it is seated.
Skip if
- Price-first buyers should look at the darkFlash DG750, 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.
It matches the ASRock Phantom Gaming PG-750G 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. No depth is rated for the LIAN LI SP750 V2, so check the maker's page against your case's PSU bay.
On price it sat third of 5, between the cheaper ASRock Phantom Gaming PG-750G and the pricier Seasonic Focus GX-750, at the time of writing. The maker doesn't give its depth; if that figure matters, the darkFlash DG750 comes in at 140mm.
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 darkFlash DG750 at the time of writing
Worth a Look4 of 5
Seasonic Focus GX-750 (ATX 3.1) on Amazon (opens in a new tab)
The Seasonic Focus GX-750 is built around hybrid fan control with a 135mm FDB fan, with Seasonic's OptiSink design on top.
Best for
- Buyers who want hybrid fan control with a 135mm FDB fan.
Skip if
- Pass if a published warranty matters; this one has none.
Why we like it
On the spec sheet, it offers a 750W rated output and offers a 1 native 12V-2x6 cable count. It is 80 Plus Gold and Cybenetics Platinum certified with a native 12V-2x6 connector. The Seasonic Focus GX-750 comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter.
No depth is rated for the Seasonic Focus GX-750, so check the maker's page against your case's PSU bay. Worth noting too: ATX 3.1 compliance. It also brings A fan that stops at low load. It was priced above the LIAN LI SP750 V2 and below the CORSAIR SF750 at the time of writing.
Key dimensions & specs
- Wattage: 750W
- Native 12V-2x6 cables: 1
- 80 Plus rating: Gold
- Cybenetics rating: Platinum
- ATX version: ATX 3.1
- Form factor: ATX
- Fan: 135mm
- Fan stop: Yes
- Colour: Black
Pros
- A 750W rating
- A native 12V-2x6 cable for 16-pin cards
- ATX 3.1 compliance
- A fan that stops at low load
Cons
- No published warranty
- Costs more than the darkFlash DG750 at the time of writing
Premium Pick5 of 5
CORSAIR SF750 (2024) on Amazon (opens in a new tab)
Corsair's 2024 SF750 is a fully modular 80 Plus Platinum SFX unit with ATX 3.1 support.
Best for
- Buyers for whom price is not the deciding factor.
Skip if
- Pass if a published native 12V-2x6 cable count matters; this one has none.
Why we like it
It uses a 92mm fluid-dynamic-bearing fan and 105C-rated Japanese capacitors. No other pick in this guide offers a platinum 80 plus rating; compare the LIAN LI SP750 V2, which has a gold 80 plus rating. The CORSAIR SF750 has no stated native 12V-2x6 cable; confirm the cable kit before pairing it with a 16-pin card.
No depth is rated for the CORSAIR SF750, so check the maker's page against your case's PSU bay. Only the Seasonic Focus GX-750 came close to it on price at the time of writing; it cost the most of the 5 picks. It gives ground on rated output, where the darkFlash DG750 offers 750W.
Key dimensions & specs
- Wattage: 750W
- 80 Plus rating: Platinum
- ATX version: ATX 3.1
- Form factor: SFX
- Cabling: Fully modular
- Fan: 92mm
- Colour: Black
Pros
- A 750W rating
- 80 Plus Platinum efficiency
- ATX 3.1 compliance
- Fully modular cables
Cons
- No published native 12V-2x6 cable count
- No published warranty
- Costs more than the darkFlash DG750 at the time of writing
How We Chose
Each pick was assessed across 4 criteria weighted for real-world use.
- How these picks were ranked
- We lined up five power supplies on rated output, native 12V-2x6 cable count, warranty and depth, using each maker's published specs. We did not test them in-house.
- The shared baseline
- All 5, from the darkFlash DG750 to the CORSAIR SF750, state rated output, 80 Plus rating and ATX version and share ATX 3.1 ATX version and Black colour.
- Where the specs have gaps
- The CORSAIR SF750 gives no native 12V-2x6 cable count; the Seasonic Focus GX-750 and the CORSAIR SF750 give no warranty.
- Price range
- At our last check the picks ran from the darkFlash DG750 ($50 to $100) to the CORSAIR SF750 ($150 to $250).
What to Look for in a 750W Gold-or-Better PSUs
Key buying criteria so you get the right fit the first time.
How much warranty you need
Here warranty runs from 5 years on the darkFlash DG750 to 10 years on the ASRock Phantom Gaming PG-750G. The ASRock Phantom Gaming PG-750G is the pick for warranty. No figure for the Seasonic Focus GX-750 and the CORSAIR SF750.
Depth across these picks
Here depth runs from 150mm on the ASRock Phantom Gaming PG-750G to 140mm on the darkFlash DG750. Start with the darkFlash DG750 if depth decides it. No figure for the LIAN LI SP750 V2, the Seasonic Focus GX-750 and the CORSAIR SF750.
Fit and compatibility
The darkFlash DG750 comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. The CORSAIR SF750 has no stated native 12V-2x6 cable; confirm the cable kit before pairing it with a 16-pin card.
Features beyond the spec table
The LIAN LI SP750 V2: a 92mm FDB fan. The Seasonic Focus GX-750: Seasonic's OptiSink design. The CORSAIR SF750: 105°C-rated Japanese capacitors.
Where your budget lands
$50 to $100 buys the darkFlash DG750 and the ASRock Phantom Gaming PG-750G; $100 to $150 buys the LIAN LI SP750 V2; $150 to $250 buys the Seasonic Focus GX-750 and the CORSAIR SF750 at our last check.
How to Choose a 750W Gold-or-Better PSUs
By priority
| Priority | Consider | Why |
|---|---|---|
| Spending as little as possible | darkFlash DG750 | A lower price than the ASRock Phantom Gaming PG-750G and the rest when we checked |
| Buyers who want 90-degree 12V-2x6 cable with a temperature sensor | ASRock Phantom Gaming PG-750G | A 90-degree 12V-2x6 cable with a temperature sensor |
| Buyers who want two-tone 12V-2x6 cable that shows whether it is seated | LIAN LI SP750 V2 | A two-tone 12V-2x6 cable that shows whether it is seated |
| Buyers who want hybrid fan control with a 135mm FDB fan | Seasonic Focus GX-750 | Hybrid fan control with a 135mm FDB fan |
| Buyers for whom price is not the deciding factor | CORSAIR SF750 | A 92mm PWM fan at the highest price in the group |
Scroll sideways to see every column.
Key specs side by side
The ASRock Phantom Gaming PG-750G leads on warranty at 10 years, ahead of the LIAN LI SP750 V2 at 10 years. "Not listed" means the maker leaves that figure out.
| Power supplie | Wattage | Native 12V-2x6 cables | Warranty | Depth |
|---|---|---|---|---|
| darkFlash DG750 | 750W | 1 | 5 years | 140mm |
| ASRock Phantom Gaming PG-750G | 750W | 1 | 10 years | 150mm |
| LIAN LI SP750 V2 | 750W | 1 | 10 years | Not listed |
| Seasonic Focus GX-750 | 750W | 1 | Not listed | Not listed |
| CORSAIR SF750 | 750W | Not listed | Not listed | Not listed |
Scroll sideways to see every column.
By price at the time of writing
The darkFlash DG750 was the lowest-priced pick and the CORSAIR SF750 the highest when we checked; tiers move with Amazon pricing.
| Price tier | Power supplies |
|---|---|
| About $50 to $100 | darkFlash DG750, ASRock Phantom Gaming PG-750G |
| About $100 to $150 | LIAN LI SP750 V2 |
| About $150 to $250 | Seasonic Focus GX-750, CORSAIR SF750 |
Frequently Asked Questions
How does the ASRock Phantom Gaming PG-750G compare with the darkFlash DG750 on depth?
The darkFlash DG750 comes out best at 140mm, with the ASRock Phantom Gaming PG-750G at 150mm. The LIAN LI SP750 V2, the Seasonic Focus GX-750 and the CORSAIR SF750 don't state a figure, so they sit outside this comparison.
What makes the darkFlash DG750 the Lowest Price Here?
It earns the label for a lower price than the ASRock Phantom Gaming PG-750G and the rest when we checked. It suits spending as little as possible.
Do the darkFlash DG750 and the CORSAIR SF750 differ on 80 Plus rating?
The darkFlash DG750, the ASRock Phantom Gaming PG-750G, the LIAN LI SP750 V2 and the Seasonic Focus GX-750 use Gold; the CORSAIR SF750 uses platinum.
What should I check before buying the Seasonic Focus GX-750?
The Seasonic Focus GX-750 comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. No depth is rated for the Seasonic Focus GX-750, so check the maker's page against your case's PSU bay. In this guide it ranks fourth of 5.
Beyond the specs, what sets the darkFlash DG750 and the ASRock Phantom Gaming PG-750G apart?
The darkFlash DG750: a 140mm body that leaves room for cables. The ASRock Phantom Gaming PG-750G: a 90-degree 12V-2x6 cable with a temperature sensor. The LIAN LI SP750 V2: a two-tone 12V-2x6 cable that shows whether it is seated.
Bottom Line
Our first pick is the darkFlash DG750, chosen for a lower price than the ASRock Phantom Gaming PG-750G and the rest when we checked. Look at the ASRock Phantom Gaming PG-750G for a 90-degree 12V-2x6 cable with a temperature sensor, the LIAN LI SP750 V2 for a two-tone 12V-2x6 cable that shows whether it is seated and the Seasonic Focus GX-750 for hybrid fan control with a 135mm FDB fan if those matter more to you.
Efficiency matters most if the PC runs for many hours a day.