Best 850W Power Supplies for Gaming in 2026
For a gaming PC that uses up to 850 watts, the top pick in this guide is the Corsair SF850 (2024). It pairs a Platinum efficiency tier with a fully modular ATX design, covering the two specifications that matter most in an 850W power supply. This guide compares 850W gaming power supplies on the specifications each listing states: efficiency tier, modular design, and form factor. All picks share the same 850W capacity. The ordering rule is described below, and the live price for each unit is printed on the page.
13 picks from 44 power supplies that match this guide with a price we can quote today, made by 21 makers. Every price below is live and carries the moment it was read.
The picks at a glance
Which one should you buy?
- For a player who wants the highest efficiency tier: The Platinum efficiency tier picks lead this list. A player who wants the highest stated efficiency tier will start with the Corsair SF850 or the MSI PRO A850PL. See pick 1
- For a player building a small form factor gaming PC: The SilverStone Extreme 850R is the only SFX pick in the list, suited to compact cases that accept SFX units. See pick 4
- For a player who values cable management: Fully modular picks let each cable be connected as needed, which helps keep a gaming case tidy. The TUF Gaming 850W is a Gold fully modular ATX option. See pick 5
- For a player who wants high efficiency and cable management: An 850W power supply with a Platinum efficiency tier and fully modular design suits a gaming build that demands high efficiency and cable management. See pick 3
The 13 picks
1 Platinum fully modular ATX
CORSAIR SF850
- Watts
- 850 W
- Rating
- Platinum
- Form
- ATX
- Modular
- Fully modular
$199.99 price as of 2026-10-14 05:52 UTC (Details)
The Corsair SF850 leads the list because it combines the highest stated efficiency tier, Platinum, with a fully modular ATX design. The MSI PRO A850PL offers the same stated specifications, but the Corsair unit appears earlier in the pool, so it takes the top spot.
Pros
- Platinum efficiency tier
- Fully modular design
- ATX form factor
Cons
- Shares the same stated specifications with the MSI PRO A850PL
- The seller does not state any additional specifications beyond wattage, efficiency tier, form, and modular design
Good fit if
- A player who wants a Platinum efficiency tier
- A player who prefers fully modular cables
Skip if
- A player who needs a smaller SFX unit
- A player who wants a Bronze or Gold efficiency tier
Verdict: A top pick for a gaming build that wants Platinum efficiency and a fully modular ATX unit.
2 Platinum fully modular ATX
MSI PRO A850PL PCIE5
- Watts
- 850 W
- Rating
- Platinum
- Form
- ATX
- Modular
- Fully modular
$159.99 price as of 2026-10-13 19:48 UTC (Details)
The MSI PRO A850PL matches the Corsair SF850 on stated specifications: Platinum efficiency tier, fully modular, and ATX. It sits second because the pool order places it after the Corsair unit.
Pros
- Platinum efficiency tier
- Fully modular design
- ATX form factor
Cons
- Shares the same stated specifications with the Corsair SF850
- No additional specifications beyond the four listed specs are stated
Good fit if
- A player who wants a Platinum fully modular ATX option
- A player who wants an alternative to the Corsair unit
Skip if
- A player who needs an SFX form factor
- A player who wants a Gold efficiency tier to match a lower budget
Verdict: A strong second pick for the same specification set as the Corsair, ordered by pool position.
3 Platinum ATX
be quiet! Power Zone 2 850W Power Supply
- Watts
- 850 W
- Rating
- Platinum
- Form
- ATX
$129.89 price as of 2026-10-14 05:38 UTC (Details)
The be quiet! Power Zone 2 holds the third position. It states a Platinum efficiency tier and ATX form, but does not state a modular design, so it falls behind the two fully modular Platinum efficiency tier units.
Pros
- Platinum efficiency tier (80 Plus and Cybenetics)
- ATX form factor
- Listed with both 80 Plus and Cybenetics Platinum certifications
Cons
- Modular design is not stated
- No form factor beyond ATX is stated
Good fit if
- A player who wants Platinum efficiency without a modular design requirement
- A player who prefers an ATX unit
Skip if
- A player who requires a fully modular design
- A player who wants an SFX unit
Verdict: A Platinum ATX pick for players who do not need a modular statement.
4 Platinum SFX
SilverStone Technology Extreme 850R Platinum Cybenetics Platinum 850W
- Watts
- 850 W
- Rating
- Platinum
- Form
- SFX
$213.23 price as of 2026-10-13 19:48 UTC (Details) Typical price: $229.96, 7% off
The SilverStone Extreme 850R is the only SFX pick in the list. It also states a Platinum efficiency tier, but without a modular design statement, it lands fourth.
Pros
- Platinum efficiency tier (Cybenetics)
- SFX form factor
- Compact size for small form factor builds
Cons
- Modular design is not stated
- Only one of two Platinum units without a modular statement
Good fit if
- A player building a compact gaming PC with an SFX-compatible case
- A player who wants Platinum efficiency in a small form
Skip if
- A player who needs a fully modular unit
- A player who prefers an ATX form factor
Verdict: A compact Platinum pick for small form factor gaming builds.
5 Gold fully modular ATX
TUF Gaming 850W Gold
- Watts
- 850 W
- Rating
- Gold
- Form
- ATX
- Modular
- Fully modular
$174.00 price as of 2026-10-13 19:48 UTC (Details)
The TUF Gaming 850W is the first Gold fully modular ATX unit in the pool. It offers the same modularity and form as the Platinum picks but with Gold efficiency, placing it after the Platinum group.
Pros
- Gold efficiency tier
- Fully modular design
- ATX form factor
Cons
- Efficiency tier is Gold rather than Platinum
- Shares the same stated specifications with several other Gold fully modular ATX picks
Good fit if
- A player who wants a fully modular ATX unit with Gold efficiency
- A player who wants a known brand in gaming hardware
Skip if
- A player who wants Platinum efficiency
- A player who needs an SFX form factor
Verdict: A solid Gold fully modular ATX pick for gaming builds that do not require the highest efficiency tier.
6 Gold fully modular ATX
NZXT C850 Gold ATX 3.1-850W Fully Modular Power Supply
- Watts
- 850 W
- Rating
- Gold
- Form
- ATX
- Modular
- Fully modular
$124.99 price as of 2026-10-13 19:48 UTC (Details)
The NZXT C850 Gold follows the TUF Gaming unit with the same stated specifications: Gold efficiency tier, fully modular, and ATX. It sits sixth because the pool order places it after TUF.
Pros
- Gold efficiency tier
- Fully modular design
- ATX form factor
Cons
- Efficiency tier is Gold rather than Platinum
- Shares the same stated specifications with several other Gold fully modular ATX picks
Good fit if
- A player who wants a fully modular Gold ATX unit
- A player who trusts the NZXT brand
Skip if
- A player who wants Platinum efficiency
- A player who needs an SFX unit
Verdict: A competitive Gold fully modular ATX pick in the middle of the list.
7 Gold fully modular ATX
Phanteks AMP GH 850W Gold Power Supply
- Watts
- 850 W
- Rating
- Gold
- Form
- ATX
- Modular
- Fully modular
$119.99 price as of 2026-10-13 19:48 UTC (Details)
The Phanteks AMP GH 850W also carries Gold efficiency tier, fully modular, and ATX. It appears after the NZXT unit in the pool, so it takes the seventh position.
Pros
- Gold efficiency tier
- Fully modular design
- ATX form factor
Cons
- Efficiency tier is Gold rather than Platinum
- Shares the same stated specifications with several other Gold fully modular ATX picks
Good fit if
- A player who wants a fully modular Gold ATX unit
- A player who prefers Phanteks hardware
Skip if
- A player who wants Platinum efficiency
- A player who needs a smaller SFX unit
Verdict: A reliable Gold fully modular ATX pick placed by pool order.
8 Gold fully modular ATX
Antec GSK850 V2 ATX 3.1 850W Full Modular Power Supply
- Watts
- 850 W
- Rating
- Gold
- Form
- ATX
- Modular
- Fully modular
$109.99 price as of 2026-10-14 05:31 UTC (Details)
The Antec GSK850 V2 continues the Gold fully modular ATX group. Its pool position places it after the Phanteks unit.
Pros
- Gold efficiency tier
- Fully modular design
- ATX form factor
Cons
- Efficiency tier is Gold rather than Platinum
- Shares the same stated specifications with several other Gold fully modular ATX picks
Good fit if
- A player who wants a fully modular Gold ATX unit
- A player who wants an Antec power supply
Skip if
- A player who wants Platinum efficiency
- A player who needs an SFX unit
Verdict: A dependable pick in the Gold fully modular ATX segment.
9 Gold fully modular ATX
Rosewill CMG5 850W
- Watts
- 850 W
- Rating
- Gold
- Form
- ATX
- Modular
- Fully modular
$97.38 price as of 2026-10-13 19:48 UTC (Details)
The Rosewill CMG5 850W appears next in the pool, keeping the same Gold efficiency tier, fully modular, and ATX specification set.
Pros
- Gold efficiency tier
- Fully modular design
- ATX form factor
Cons
- Efficiency tier is Gold rather than Platinum
- Shares the same stated specifications with several other Gold fully modular ATX picks
Good fit if
- A player who wants a fully modular Gold ATX unit
- A player who wants a Rosewill unit
Skip if
- A player who wants Platinum efficiency
- A player who needs an SFX unit
Verdict: A value-oriented Gold fully modular ATX pick, though no price data is given here.
10 Gold fully modular ATX
ENERMAX Revolution III 850
- Watts
- 850 W
- Rating
- Gold
- Form
- ATX
- Modular
- Fully modular
$95.49 price as of 2026-10-14 06:02 UTC (Details)
The Enermax Revolution III 850 follows with the same stated specifications. Its position is determined by the pool order after the Rosewill CMG5.
Pros
- Gold efficiency tier
- Fully modular design
- ATX form factor
Cons
- Efficiency tier is Gold rather than Platinum
- Shares the same stated specifications with several other Gold fully modular ATX picks
Good fit if
- A player who wants a fully modular Gold ATX unit
- A player who prefers Enermax power supplies
Skip if
- A player who wants Platinum efficiency
- A player who needs an SFX unit
Verdict: Another Gold fully modular ATX pick ranked by pool sequence.
11 Gold fully modular ATX
GIGABYTE 850W PSU
- Watts
- 850 W
- Rating
- Gold
- Form
- ATX
- Modular
- Fully modular
$89.99 price as of 2026-10-14 06:13 UTC (Details)
The GIGABYTE 850W PSU appears after the Enermax unit, matching the Gold efficiency tier, fully modular, and ATX specification set.
Pros
- Gold efficiency tier
- Fully modular design
- ATX form factor
Cons
- Efficiency tier is Gold rather than Platinum
- Shares the same stated specifications with several other Gold fully modular ATX picks
Good fit if
- A player who wants a fully modular Gold ATX unit
- A player who prefers GIGABYTE hardware
Skip if
- A player who wants Platinum efficiency
- A player who needs an SFX unit
Verdict: A predictable Gold fully modular ATX pick in the sequence.
12 Gold fully modular ATX
MONTECH Century II 850W ATX 3.1 Fully Modular 80 Plus Gold Power Supply
- Watts
- 850 W
- Rating
- Gold
- Form
- ATX
- Modular
- Fully modular
$89.90 price as of 2026-10-13 19:48 UTC (Details)
The MONTECH Century II 850W continues the Gold fully modular ATX group, placed after the GIGABYTE unit.
Pros
- Gold efficiency tier
- Fully modular design
- ATX form factor
Cons
- Efficiency tier is Gold rather than Platinum
- Shares the same stated specifications with several other Gold fully modular ATX picks
Good fit if
- A player who wants a fully modular Gold ATX unit
- A player who wants a MONTECH unit
Skip if
- A player who wants Platinum efficiency
- A player who needs an SFX unit
Verdict: A straightforward Gold fully modular ATX pick in the latter part of the list.
13 Gold fully modular ATX
CORSAIR RM850x ATX 3.1 PCIe 5.1 Ready Fully Modular 850W Power Supply
- Watts
- 850 W
- Rating
- Gold
- Form
- ATX
- Modular
- Fully modular
$139.99 price as of 2026-10-14 05:52 UTC (Details)
The CORSAIR RM850x is the last pick in this list. It shares the same Gold efficiency tier, fully modular, and ATX specifications and appears after the MONTECH unit in the pool, closing the top 13.
Pros
- Gold efficiency tier
- Fully modular design
- ATX form factor
Cons
- Efficiency tier is Gold rather than Platinum
- Shares the same stated specifications with several other Gold fully modular ATX picks
Good fit if
- A player who wants a fully modular Gold ATX unit
- A player who prefers the Corsair branding
Skip if
- A player who wants Platinum efficiency
- A player who needs an SFX unit
Verdict: A final Gold fully modular ATX pick, rounding out the 13 choices.
Side by side
| # | Power supply | Watts | Rating | Form | Modular |
|---|---|---|---|---|---|
| 1 | CORSAIR SF850 | 850 W | Platinum | ATX | Fully modular |
| 2 | MSI PRO A850PL PCIE5 | 850 W | Platinum | ATX | Fully modular |
| 3 | be quiet! Power Zone 2 850W Power Supply | 850 W | Platinum | ATX | not stated |
| 4 | SilverStone Technology Extreme 850R Platinum Cybenetics Platinum 850W | 850 W | Platinum | SFX | not stated |
| 5 | TUF Gaming 850W Gold | 850 W | Gold | ATX | Fully modular |
| 6 | NZXT C850 Gold ATX 3.1-850W Fully Modular Power Supply | 850 W | Gold | ATX | Fully modular |
| 7 | Phanteks AMP GH 850W Gold Power Supply | 850 W | Gold | ATX | Fully modular |
| 8 | Antec GSK850 V2 ATX 3.1 850W Full Modular Power Supply | 850 W | Gold | ATX | Fully modular |
| 9 | Rosewill CMG5 850W | 850 W | Gold | ATX | Fully modular |
| 10 | ENERMAX Revolution III 850 | 850 W | Gold | ATX | Fully modular |
| 11 | GIGABYTE 850W PSU | 850 W | Gold | ATX | Fully modular |
| 12 | MONTECH Century II 850W ATX 3.1 Fully Modular 80 Plus Gold Power Supply | 850 W | Gold | ATX | Fully modular |
| 13 | CORSAIR RM850x ATX 3.1 PCIe 5.1 Ready Fully Modular 850W Power Supply | 850 W | Gold | ATX | Fully modular |
How we picked
The pool holds 30 desktop power supplies with a stated capacity of 850W, gathered from the current catalogue. Each listing states its efficiency tier, modular design, and form factor, though some listings do not state every one of these. The picks are ordered by stated efficiency tier, with Platinum before Gold, then by modular design, with fully modular before semi-modular and non-modular, then by form factor, with ATX ahead of SFX. Ties are broken by the order in the pool. All picks are compared on the specifications stated in each listing and on the live price printed on the page. This guide does not measure or use any of these units.
How to choose
What an 850W capacity means for a gaming PC
All picks in this guide are stated at 850 watts. That capacity is the maximum power the unit can deliver continuously. For a gaming desktop, an 850W unit is a common choice when the processor and graphics card together draw a large amount of power. The catalogue does not state which CPUs or GPUs each unit supports, so the guide cannot promise a specific hardware combination. The 850W capacity is the only power capacity considered here.
Efficiency tiers: Platinum, Gold, and Bronze
The listings state an efficiency tier, which describes how much of the input power is converted to output power. The 80 PLUS program sets levels such as Gold and Platinum. This guide orders picks by tier, placing Platinum ahead of Gold. The catalogue does not include efficiency measurements, so the guide relies on the stated tier. For more on 80 PLUS, see the source page.
Modular design and cable management
Modular design refers to whether cables are detachable. Fully modular units let every cable be connected as needed, which helps with cable management in a gaming case. Semi-modular units have some fixed cables, while non-modular units have all cables attached. Some listings do not state a modular design. The guide treats that as 'not stated by the seller' and does not guess. Fully modular picks are ordered ahead of semi-modular and non-modular ones.
ATX and SFX form factors
The form factor describes the physical size and mounting pattern of the power supply. ATX is the standard size for most desktop cases, while SFX is a smaller size used in compact builds. This guide places ATX before SFX in the ordering because ATX is more common in gaming towers. The only SFX pick here is the SilverStone Extreme 850R. The catalogue does not specify case compatibility, so the guide does not cover it.
What this guide leaves out (and why)
The catalogue for these picks states only wattage, efficiency tier, modular design, and form factor. It does not include measurements of fan noise, operating temperatures, or performance under load. It also does not state warranty length or included accessories. This guide compares only what each listing states, and it does not add assumptions. The live price printed on the page is the final factor in the comparison, but no price amounts appear in the prose.
Questions
Does this guide cover fan noise or temperatures?
No. The catalogue for these picks states efficiency tier, modular design, and form factor, but not fan noise, thermals, or operating temperatures. This guide compares only the specifications stated in each listing and the live price shown on the page. It does not measure or attempt to measure any unit.
What does an 80 Plus Platinum efficiency tier mean?
80 Plus is a certification program that sets efficiency levels for power supplies. Platinum is one of the higher tiers, indicating that a unit meets efficiency thresholds set by the 80 Plus program. The picks with a Platinum tier are ordered before Gold in this guide, based on the stated tier. The catalogue does not provide efficiency measurements beyond the stated tier.
Is 850W enough for a gaming PC?
The guide selects only 850W units. The catalogue does not state what hardware each unit supports, so the guide cannot promise that any specific configuration will work. As a general note, an 850W unit is a common capacity for gaming desktops, but the actual requirement depends on the components. The live price is the only additional factor considered.
Why do some listings not state a modular design or form factor?
Some sellers do not list every specification. When a specification is missing, the guide writes 'not stated by the seller' and does not guess. The ordering rule handles missing specs by putting units with stated specs ahead of those without, but it does not assume any value for the missing field.
Can I use an SFX power supply in an ATX case?
The guide does not cover case compatibility because that information is not in the catalogue. The only SFX pick is the SilverStone Extreme 850R. An ATX case may accept SFX units with an adapter, but the guide cannot confirm that because it does not have that information. The stated form factor is SFX, and the guide treats that as the only known detail.
Recent updates
- : First published.