Buying Guide
The Best 850W Gold-or-Better PSUs
We weighed five power supplies on rated output and native 12V-2x6 cable count, and the darkFlash DG850 costs the least.
By The PC Journal editorial team
12 min read5 products evaluated
An 850W Gold unit suits an RTX 5080 or an RX 9070 XT build. Every pick is 850W and rated Gold, Platinum or Titanium, ordered from the lowest price.
Rankings weigh wattage, native 12V-2x6 cables and warranty as the makers state them; we did not test these power supplies ourselves, and if a maker skips native 12V-2x6 cables, the guide says so.
Quick Picks
Our 5 recommendations at a glance. Tap a pick for the full verdict.
Lowest Price Here
darkFlash DG850
The lowest price of the group at our last check.
Best for: Spending as little as possible.
Our take Check price for darkFlash DG850 (opens in a new tab)
Also Consider
Rosewill VMG 850W
Listed support for large GPU power excursions.
Best for: Buyers who want listed support for large GPU power excursions.
Our take Check price for Rosewill VMG 850W (opens in a new tab)
Strong Alternative
Thermaltake Toughpower GT 850W
Smart Zero Fan mode.
Best for: Buyers who want Smart Zero Fan mode.
Our take Check price for Thermaltake Toughpower GT 850W (opens in a new tab)
Worth a Look
MSI MAG A850GL PCIE5 White
White housing and cables.
Best for: Buyers who want white housing and cables.
Our take Check price for MSI MAG A850GL PCIE5 White (opens in a new tab)
Premium Pick
CORSAIR SF850 (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 SF850 (2024) (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| The lowest price of the group at our last check. | Spending as little as possible. | Check price for darkFlash DG850 (opens in a new tab) |
| Listed support for large GPU power excursions. | Buyers who want listed support for large GPU power excursions. | Check price for Rosewill VMG 850W (opens in a new tab) |
| Smart Zero Fan mode. | Buyers who want Smart Zero Fan mode. | Check price for Thermaltake Toughpower GT 850W (opens in a new tab) |
| White housing and cables. | Buyers who want white housing and cables. | Check price for MSI MAG A850GL PCIE5 White (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 SF850 (2024) (opens in a new tab) |
Our Picks
Lowest Price Here1 of 5
darkFlash DG850 on Amazon (opens in a new tab)
darkFlash's DG850 fits 850W into a 140mm body, with a native 12V-2x6 cable and fully modular cables.
Best for
- Spending as little as possible.
Skip if
- Worth skipping when a shorter 5-year warrant is a problem.
Why we like it
Its warranty is 5 years. It is fully modular with a quiet HDB fan, and it carries a 5-year limited warranty with built-in protections. Its 850W output suits high-end CPU and GPU builds.
Like the Thermaltake Toughpower GT 850W and MSI MAG A850GL PCIE5 White, it has an ATX 3.1 atx version, while the CORSAIR SF850 uses an ATX 3.0 atx version. You also get multi-protection circuitry. The darkFlash DG850 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. No other pick here cost less at our last price check, and the Rosewill VMG 850W was closest.
Key dimensions & specs
- Wattage: 850W
- 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 850W rating
- A native 12V-2x6 cable for 16-pin cards
- A short 140mm body
- ATX 3.1 compliance
Cons
- A shorter 5-year warranty
Also Consider2 of 5
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
- Buyers who want listed support for large GPU power excursions.
Skip if
- Pass on it if a shorter 5-year warrant rules it out for your setup.
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.
It lists ATX 3.0 and 3.1 support, a 12V-2x6 cable and a 120mm FDB fan. The Rosewill VMG 850W comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. No depth is rated for the Rosewill VMG 850W, so check the maker's page against your case's PSU bay. When we checked, only the darkFlash DG850 cost less, and the Thermaltake Toughpower GT 850W cost more.
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
- Costs more than the darkFlash DG850 at the time of writing
Strong Alternative3 of 5
Thermaltake Toughpower GT 850W on Amazon (opens in a new tab)
Thermaltake's Toughpower GT 850W is a fully modular ATX 3.1 unit with a native 12V-2x6 cable, a single high-amperage 12V rail and a Smart Zero Fan mode.
Best for
- Buyers who want Smart Zero Fan mode.
Skip if
- Pass on it if a shorter 5-year warrant rules it out for your setup.
Why we like it
Smart Zero Fan keeps the fan off at low load, and its low-profile flat black cables are easy to route. It is 80 Plus Gold rated at up to 90% efficiency. Like the darkFlash DG850 and MSI MAG A850GL PCIE5 White, it has an ATX 3.1 atx version, while the CORSAIR SF850 uses an ATX 3.0 atx version.
The Thermaltake Toughpower GT 850W comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. No depth is rated for the Thermaltake Toughpower GT 850W, so check the maker's page against your case's PSU bay. When we checked, only the Rosewill VMG 850W and cheaper picks cost less, and the MSI MAG A850GL PCIE5 White cost more.
Key dimensions & specs
- Wattage: 850W
- Native 12V-2x6 cables: 1
- Warranty: 5 years
- 80 Plus rating: Gold
- ATX version: ATX 3.1
- Form factor: ATX
- Cabling: Fully modular
- Fan stop: Yes
- Colour: Black
Pros
- A 850W rating
- A native 12V-2x6 cable for 16-pin cards
- ATX 3.1 compliance
- Fully modular cables
Cons
- A shorter 5-year warranty
- Costs more than the darkFlash DG850 at the time of writing
Worth a Look4 of 5
MSI MAG A850GL PCIE5 White on Amazon (opens in a new tab)
The MSI MAG A850GL PCIE5 White stands out for white housing and cables, and it adds a 5-year limited warranty on the white version.
Best for
- Buyers who want white housing and cables.
Skip if
- Skip it if this is a deal-breaker for you: a shorter 5-year warranty.
Why we like it
It also offers an 850W rated output and offers a 1 native 12V-2x6 cable count. It is 80 Plus Gold with a 5-year limited warranty, and the white finish suits light builds. The compact body helps in smaller cases.
Its fully modular design keeps cables to what you need. Like the darkFlash DG850 and Thermaltake Toughpower GT 850W, it has an ATX 3.1 atx version, while the CORSAIR SF850 uses an ATX 3.0 atx version. No other pick in this guide offers a white colour; compare the Thermaltake Toughpower GT 850W, which has a black colour.
The MSI MAG A850GL PCIE5 White comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. No depth is rated for the MSI MAG A850GL PCIE5 White, so check the maker's page against your case's PSU bay. It was priced above the Thermaltake Toughpower GT 850W and below the CORSAIR SF850 at the time of writing.
Key dimensions & specs
- Wattage: 850W
- Native 12V-2x6 cables: 1
- Warranty: 5 years
- 80 Plus rating: Gold
- ATX version: ATX 3.1
- Form factor: ATX
- Cabling: Fully modular
- Colour: White
Pros
- A 850W rating
- A native 12V-2x6 cable for 16-pin cards
- ATX 3.1 compliance
- Fully modular cables
Cons
- A shorter 5-year warranty
- Costs more than the darkFlash DG850 at the time of writing
Premium Pick5 of 5
CORSAIR SF850 (2024) on Amazon (opens in a new tab)
What the CORSAIR SF850 brings to the table is a 92mm PWM fan, plus 105°C-rated Japanese capacitors.
Best for
- Buyers for whom price is not the deciding factor.
Skip if
- The maker gives no native 12V-2x6 cable count, so look elsewhere if that figure decides it for you.
Why we like it
A platinum 80 plus rating is unique to it among these picks, while the Rosewill VMG 850W uses a gold 80 plus rating. An ATX 3.0 atx version is unique to it among these picks, while the MSI MAG A850GL PCIE5 White uses an ATX 3.1 atx version. The CORSAIR SF850 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 SF850, so check the maker's page against your case's PSU bay. It was the most expensive pick when we checked, so weigh what it adds over the MSI MAG A850GL PCIE5 White. If rated output is your priority, the darkFlash DG850 (850W) is the stronger choice.
Key dimensions & specs
- Wattage: 850W
- 80 Plus rating: Platinum
- ATX version: ATX 3.0
- Form factor: SFX
- Cabling: Fully modular
- Fan: 92mm
- Colour: Black
Pros
- A 850W rating
- 80 Plus Platinum efficiency
- Fully modular cables
- 92mm PWM fan
Cons
- No published native 12V-2x6 cable count
- No published warranty
- Costs more than the darkFlash DG850 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 compared five power supplies on rated output, native 12V-2x6 cable count, warranty and 80 Plus rating as the makers state them. We did not test them in-house.
- What every pick has in common
- All 5, from the darkFlash DG850 to the CORSAIR SF850, state rated output, 80 Plus rating and form factor and share Fully modular cabling.
- Where the specs have gaps
- The CORSAIR SF850 gives no native 12V-2x6 cable count; the CORSAIR SF850 gives no warranty.
- Price range
- At our last check the picks ran from the darkFlash DG850 ($50 to $100) to the CORSAIR SF850 ($150 to $250).
What to Look for in a 850W Gold-or-Better PSUs
Key buying criteria so you get the right fit the first time.
ATX version
The darkFlash DG850, the Thermaltake Toughpower GT 850W and the MSI MAG A850GL PCIE5 White list ATX 3.1; the CORSAIR SF850 lists ATX 3.0. Settle this first, then compare prices.
Fit and compatibility
The darkFlash DG850 comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. The CORSAIR SF850 has no stated native 12V-2x6 cable; confirm the cable kit before pairing it with a 16-pin card.
Extras that separate them
The Thermaltake Toughpower GT 850W: a single high-amperage 12V rail. The MSI MAG A850GL PCIE5 White: a 5-year limited warranty on the white version. The CORSAIR SF850: 105°C-rated Japanese capacitors.
Where your budget lands
$50 to $100 buys the darkFlash DG850, the Rosewill VMG 850W and the Thermaltake Toughpower GT 850W; $100 to $150 buys the MSI MAG A850GL PCIE5 White; $150 to $250 buys the CORSAIR SF850 at our last check.
Start from what matters most
Spending as little as possible: the darkFlash DG850. Buyers for whom price is not the deciding factor: the CORSAIR SF850.
How to Choose a 850W Gold-or-Better PSUs
By priority
| Priority | Consider | Why |
|---|---|---|
| Spending as little as possible | darkFlash DG850 | The lowest price of the group at our last check |
| Buyers who want listed support for large GPU power excursions | Rosewill VMG 850W | Listed support for large GPU power excursions |
| Buyers who want Smart Zero Fan mode | Thermaltake Toughpower GT 850W | Smart Zero Fan mode |
| Buyers who want white housing and cables | MSI MAG A850GL PCIE5 White | White housing and cables |
| Buyers for whom price is not the deciding factor | CORSAIR SF850 | A 92mm PWM fan at the highest price in the group |
Scroll sideways to see every column.
Key specs side by side
The darkFlash DG850, the Rosewill VMG 850W and the rest, as their makers list them.
| Power supplie | Wattage | Native 12V-2x6 cables | Warranty | 80 Plus rating |
|---|---|---|---|---|
| darkFlash DG850 | 850W | 1 | 5 years | Gold |
| Rosewill VMG 850W | 850W | 1 | 5 years | Gold |
| Thermaltake Toughpower GT 850W | 850W | 1 | 5 years | Gold |
| MSI MAG A850GL PCIE5 White | 850W | 1 | 5 years | Gold |
| CORSAIR SF850 | 850W | Not listed | Not listed | Platinum |
Scroll sideways to see every column.
By price at the time of writing
The darkFlash DG850 was the lowest-priced pick and the CORSAIR SF850 the highest when we checked; tiers move with Amazon pricing.
| Price tier | Power supplies |
|---|---|
| About $50 to $100 | darkFlash DG850, Rosewill VMG 850W, Thermaltake Toughpower GT 850W |
| About $100 to $150 | MSI MAG A850GL PCIE5 White |
| About $150 to $250 | CORSAIR SF850 |
Frequently Asked Questions
Why is the CORSAIR SF850 our Premium Pick pick?
It earns the label for a 92mm PWM fan at the highest price in the group. It suits buyers for whom price is not the deciding factor.
Do the darkFlash DG850 and the CORSAIR SF850 differ on 80 Plus rating?
The darkFlash DG850, the Rosewill VMG 850W, the Thermaltake Toughpower GT 850W and the MSI MAG A850GL PCIE5 White use Gold; the CORSAIR SF850 uses platinum.
Will the Rosewill VMG 850W work with my setup?
The Rosewill VMG 850W comes with a native 12V-2x6 cable, so a 16-pin card plugs in without an adapter. No depth is rated for the Rosewill VMG 850W, so check the maker's page against your case's PSU bay. In this guide it ranks second of 5.
What extras do the darkFlash DG850 and the Rosewill VMG 850W include?
The darkFlash DG850: 850W in a 140mm body. The Rosewill VMG 850W: listed support for large GPU power excursions. The Thermaltake Toughpower GT 850W: Smart Zero Fan mode.
Who should choose the darkFlash DG850?
The darkFlash DG850 carries our Lowest Price Here label for the lowest price of the group at our last check. It ranks first of 5 here.
Bottom Line
Our first pick is the darkFlash DG850, chosen for the lowest price of the group at our last check. Look at the Rosewill VMG 850W for listed support for large GPU power excursions, the Thermaltake Toughpower GT 850W for Smart Zero Fan mode and the MSI MAG A850GL PCIE5 White for white housing and cables if those matter more to you.
Check for a native 12V-2x6 cable.