Best 750W ATX 3.0 Power Supplies in 2026: Complete Buyer’s Guide

750w atx 3.0 power supply Review 2026: Budget 850W Gold PSU with ATX 3.0

750w atx 3.0 power supply Review 2026: Aggressive Budget 850W ATX 3.0 PSU

The 750w atx 3.0 power supply disrupts the mid-range PSU market by delivering ATX 3.0 native 12V-2×6 support and 80+ Gold efficiency at $170-195—undercutting competitors by $30-50. Thermaltake’s gamble is simple: prioritize core features (modular, efficient, ATX 3.0 native) while cutting costs on premium acoustics and boutique aesthetics. The result is a no-frills PSU that gets the job done for RTX 5070 Ti and RTX 5080 builds without luxury pricing. For budget-first builders, the Toughpower GF3 850W offers exceptional value. For those demanding whisper-quiet operation or premium voltage regulation, competitors like Seasonic and be quiet! justify their premiums. This unit is purely functional excellence at aggressive pricing.

1

-18%

Best Seller

MSI MAG A750GL PCIE5, Fully Modular Compact Gaming 750W Power Supply, 80+ Gold, ATX 3.1 & PCIe 5.1 Ready, Native Dual-Color 12V-2x6 Cable, 10 Year Warranty

9.7 /10
ACMS Score

Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Product information sourced from Amazon.

$109.99 Save $20.00

$89.99

Dropped $5.50

View on Amazon.com

2

-22%

Editor's Pick

CORSAIR RM750e ATX 3.1 PCIe 5.1 Ready Fully Modular 750W Power Supply – 12V-2x6 Cable Included, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black

Corsair

9.7 /10
ACMS Score

Updated: Aug 5, 2026
Last update on Aug 5, 2026 / Affiliate links / Product information sourced from Amazon.

$114.99 Save $25.00

$89.99

View on Amazon.com

3

Limited Time

be quiet! Pure Power 13 M 750W, ATX 3.1, Fully Modular PSU, 80+ Gold | PCIe 5.1 Ready Power Supply, Up to 94.4% Efficiency, LLC Topology, Semi-Passive 120mm fan, 12V-2x6 600W, 10 Year Warranty

bequiet

9.8 /10
ACMS Score

Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Product information sourced from Amazon.

$89.90

View on Amazon.com

4

Prime Top Rated

Seasonic CORE GX 650W Power Supply ATX 3.1 PCIe 5.1 (12V-2x6) 7 Years Warranty 80+ Gold Fully Modular RTX 5060 Ti AMD RX 9000 Ready

Seasonic

9.8 /10
ACMS Score

Updated: May 27, 2026
Last update on May 27, 2026 / Affiliate links / Product information sourced from Amazon.

$99.99

View on Amazon.com

5

Prime

CORSAIR RM850e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black

9.8 /10
ACMS Score

Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Product information sourced from Amazon.

$119.00

View on Amazon.com

In a hurry? See the top-rated 750w atx 3.0 power supply deals available right now:
🛒 Check 750W Atx 3.0 Power Supply Prices on Amazon →

Specifications

Power & Efficiency

Wattage: 850W continuous at 50°C ambient

Efficiency Rating: 80+ Gold (≥90% efficiency at 50% load)

Form Factor: ATX (150 × 86 × 165 mm)

Modularity & Connectors

Modularity Type: Fully modular with standard keyed connectors

Native 12V-2×6: Yes, ATX 3.0 certified

Legacy Support: 8-pin and 6+2-pin PCIe for older GPUs

Cable Lengths: 550-700mm for typical modular connectors

Thermal Management

Fan: 135mm FDB bearing with semi-passive operation

Semi-Passive Mode: Zero RPM below 45% load

Noise Level: ≤26dB at 50% load (acceptable, not exceptional)

MTBF: 100,000 hours

Cable Quality & Modularity

Thermaltake keeps the Toughpower GF3 deliberately simple: 18AWG cables, minimal sleeving, straightforward modular connectors. This pragmatism reduces manufacturing complexity and cost, allowing aggressive pricing. Cable lengths (550-700mm) accommodate most cases; routing is intuitive. The modular connectors use robust keying, preventing polarity errors during installation.

Unsleeved cables are a non-issue functionally, though budget buyers appreciate the cost reduction reflected in pricing. Fully sleeved competitors justify $30-50 premium for aesthetics; Thermaltake redirects that cost into price advantage. Cable clustering is minimal, and airflow pathways remain clear.

19

be quiet! Pure Power 13 M 750W, ATX 3.1, Fully Modular PSU, 80+ Gold | PCIe 5.1 Ready Power Supply, Up to 94.4% Efficiency, LLC Topology, Semi-Passive 120mm fan, 12V-2x6 600W, 10 Year Warranty

Internal Power Supplies

bequiet

amazon.com

★ ★ ★ ★ ★
4.7 (133 reviews)

In Stock

$89.90

View on Amazon.com

Updated: July 24, 2026
Price as of Jul 24, 2026. We earn from qualifying purchases.

About this item

Expand

1 / 19

1 / 19

View on Amazon.com

As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.

Voltage Regulation & Ripple Control

At $170-195, the Toughpower GF3 doesn’t compete on regulation finesse. Voltage regulation maintains ±5% on 12V rails—fully ATX-compliant and adequate for stable gaming. Peak-to-peak ripple typically measures 55-65mV under full load, typical for this price tier and acceptable for gaming stability.

The trade-off is intentional: Thermaltake invests engineering effort into cost reduction, not regulation perfection. For gaming systems operating at 60-80% load (not sustained 100%), the performance gap vs. Tier-A competitors is imperceptible. You’re explicitly choosing budget pricing over boutique features.

Cooling & Acoustics

The 135mm FDB fan operates on a standard curve, prioritizing reliability over silence. Below 45% load, semi-passive mode keeps the fan disengaged. At 50% load (typical gaming), the fan spins at approximately 1200-1400 RPM, generating ~26dB—noticeable but not objectionable in systems with adequate case ventilation.

At 75% load (stress testing), fan speed ramps to ~2200 RPM, producing roughly 28-30dB. Not exceptionally quiet, but acceptable for budget-conscious buyers who prioritize cost over acoustic refinement. FDB bearing provides good longevity (100,000-hour MTBF), though less durable than premium ball-bearing designs.

ATX 3.x Compatibility

The Toughpower GF3 850W supports ATX 3.0 with native 12V-2×6 connector implementation. Power excursion handling is adequate: the unit detects transient spikes and responds within 20-25 milliseconds. For RTX 5070 Ti and RTX 5080 compatibility, ATX 3.0 is fully sufficient—you’re getting next-gen GPU readiness at mid-range pricing.

The decision to include native 12V-2×6 (rather than forcing adapters) at this price point is strategic: Thermaltake future-proofs budget buyers without premium pricing, capturing market share from older Gold units that require adapters.

Best GPU Pairings

The 850W Thermaltake Toughpower GF3 excels with:

RTX 5080: 450W TDP + Ryzen 7 7700X (105W) = 655W sustained, 750W peak. Adequate fit with 100W headroom for voltage regulation and transients.

RTX 5070 Ti: 350W TDP, leaving comfortable margin for CPU overclocking and RGB systems.

RX 9070 XT: 480W TDP, marginal but feasible. See our RX 9070 XT review for power analysis.

NOT recommended for RTX 5090: 575W TDP + 150W spikes = insufficient 850W margin.

For budget-conscious builders targeting $2000 gaming PC builds with RTX 5080, the Toughpower GF3 is the value pick—you save $30-50 vs. competitors and redirect savings to GPU/CPU tier-up.

Pros & Cons

Pros

Aggressive pricing at $170-195 (undercuts competitors by $30-50)

Native 12V-2×6 support (ATX 3.0) for modern GPU compatibility

80+ Gold efficiency (90%+ at 50% load)

Fully modular with standard connectors and straightforward cable routing

Proven Thermaltake reliability across gaming builds

Compact 165mm depth fits tight cases better than 1000W units

Semi-passive cooling reduces fan wear at typical gaming loads

10-year warranty (standard industry coverage)

Cons

Noise ~26dB at 50% load (noticeably higher than premium alternatives)

Voltage regulation ±5% (adequate, not exceptional)

Ripple control ~60mV (acceptable, not premium-tier tight)

FDB bearing less durable than premium ball-bearing designs

Not suitable for RTX 5090 (insufficient 850W margin)

Unsleeved cables (minor aesthetic trade-off)

Thermaltake brand less familiar to enthusiasts vs. Corsair/Seasonic

Comparison Table

Feature | 750w atx 3.0 power supply | EVGA SuperNOVA 850 G7 | Corsair RM850e
Wattage | 850W | 850W | 850W
Efficiency | 80+ Gold | 80+ Gold | 80+ Gold
ATX Version | 3.0 (native 12V-2×6) | 3.0 (native 12V-2×6) | 2.0 (legacy, adapter needed)
Modularity | Full | Full | Full
Native 12V-2×6 | Yes | Yes | No
Noise (50% Load) | 26dB | 25dB | 23dB
Warranty | 10 years | 10 years | 10 years
Price | $170-195 | $220-240 | $200-220

FAQ

Is the Thermaltake GF3 850W worth buying over EVGA SuperNOVA 850 G7?

Both are excellent value. Thermaltake edges on price ($170-195 vs. $220-240), but EVGA offers slightly better acoustics (25dB vs. 26dB) and proven track record with US gamers. For pure budget-first optimization, Thermaltake wins. For reliability reputation, EVGA edges ahead. Either is a solid choice.

Should I pay extra for EVGA’s proven track record, or save $30-50 on Thermaltake?

If $30-50 is meaningful to your budget, Thermaltake offers excellent value. EVGA’s reputation is justified, but Thermaltake’s warranty is equally robust (10 years). The $30-50 savings can upgrade GPU/CPU tier, often yielding better gaming performance improvement than PSU brand differences. For gaming, Thermaltake is rational choice.

Is 850W enough for RTX 5080 with aggressive CPU overclocking?

Tight. RTX 5080 (450W) + overclocked Ryzen 9 (150W+) = 600W+, leaving only 250W headroom. If you plan sustained 100% load CPU+GPU simultaneous stress, this isn’t ideal. For gaming (where CPU/GPU rarely both max), 850W suffices. See our best 850W PSU guide for alternatives if overclocking is priority.

Does Thermaltake have good warranty service in the US?

Yes. Thermaltake has established US support infrastructure. Warranty claims process is standard: RMA via online portal, 2-4 week replacement turnaround. Not as streamlined as EVGA’s (who don’t require receipts), but comparable to Corsair/Seasonic. Verify your region’s authorized distributor before purchase.

Verdict

The 750w atx 3.0 power supply is the budget champion for 850W ATX 3.0 PSUs. At $170-195, it delivers full-featured modular, efficient, next-gen-GPU-ready power at aggressive pricing. Yes, it sacrifices acoustic refinement and premium regulation for cost savings—an intentional trade-off. For budget-first builders targeting RTX 5080 systems, this PSU redirects savings to GPU/CPU tier-up, yielding better gaming performance than paying extra for quieter PSU alternatives.

Recommend for: RTX 5070 Ti/5080 budget builds, value-conscious optimization, gamers using headphones. Not recommended for: living-room systems (26dB noticeable), content creators (premium silence desirable). See $2000 gaming PC guide for integration examples.

1

-20%

Best Seller

ASUS TUF Gaming 850W Gold (850 Watt, ATX 3.0 Compatible, Fully Modular Power Supply, 80+ Gold, Military-Grade Components, Dual Ball Bearing, Axial-tech Fan, PCB Coating, 10 Year Warranty)

9.8 /10
ACMS Score

Updated: May 27, 2026
Last update on May 27, 2026 / Affiliate links / Product information sourced from Amazon.

$149.99 Save $30.00

$119.99

View on Amazon.com

2

-19%

Editor's Pick

NZXT C850 Gold ATX 3.1 - Fully Modular Low-Noise PC Gaming Power Supply - 850 Watts - 80 Plus Gold - 12V-2x6 Connector - Zero Fan Mode - 100% Japanese Capacitors - Black

NZXT

9.8 /10
ACMS Score

Updated: May 27, 2026
Last update on May 27, 2026 / Affiliate links / Product information sourced from Amazon.

$144.99 Save $28.00

$116.99

View on Amazon.com

3

-21%

Limited Time

CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2x6 Connector – Black

9.8 /10
ACMS Score

Updated: Jul 24, 2026
Last update on Jul 24, 2026 / Affiliate links / Product information sourced from Amazon.

$209.99 Save $43.75

$166.24

View on Amazon.com

4

-18%

Top Rated

ASUS TUF Gaming 1000W Gold (1000 Watt, ATX 3.1 Compatible Fully Modular Power Supply, 80+ Gold Certified, Military-Grade Components, Dual Ball Bearing, Axial-tech Fan, PCB Coating, 10 Year Warranty)

ASUS

9.5 /10
ACMS Score

Updated: Aug 5, 2026
Last update on Aug 5, 2026 / Affiliate links / Product information sourced from Amazon.

$194.99 Save $35.00

$159.99

Dropped $10.00

View on Amazon.com

5

be quiet! Pure Power 13 M 1000W, ATX 3.1, Fully Modular PSU, 80+ Gold

be quiet!

9.4 /10
ACMS Score

Updated: Aug 5, 2026
Last update on Aug 5, 2026 / Affiliate links / Product information sourced from Amazon.

$139.90

View on Amazon.com

Related Gaming Guides

EVGA SuperNOVA 850 G7 Review 2026: Best Value 850W Gold PSU for RTX 5080

Corsair RM850e Review 2026: Premium 850W Gold PSU for Mid-Range RTX 5070 Ti Gaming

NZXT C850 Review 2026: Minimalist 850W Gold PSU for NZXT Ecosystem Builds

MSI MPG A1000G Review 2026: Gaming-Optimized 1000W Gold PSU with ATX 3.0 at Value Price

Corsair RM1000x SHIFT Review 2026: ATX 3.1 Native 12V-2×6 Power Supply

Related Articles

Looking for more on this topic? Browse the hand-picked guides below — each one applies the same scoring rubric used in this review.

Corsair RM1000x SHIFT Review 2026: ATX 3.1 Native 12V-2×6 Power Supply

Seasonic Vertex GX-1000 Review 2026: Quietest 1000W Gold PSU with 12-Year Warranty

EVGA SuperNOVA 850 G7 Review 2026: Best Value 850W Gold PSU for RTX 5080

be quiet! Pure Power 12 M Review 2026: Quietest 750W Gold PSU for Silent Gaming

Cooler Master V850 SFX Review 2026: Only 850W Platinum SFX PSU for Compact Gaming

Corsair RM850e Review 2026: Premium 850W Gold PSU for Mid-Range RTX 5070 Ti Gaming

NZXT C850 Review 2026: Minimalist 850W Gold PSU for NZXT Ecosystem Builds

MSI MPG A1000G Review 2026: Gaming-Optimized 1000W Gold PSU with ATX 3.0 at Value Price

You might also like:

Best CPUs under $800 in 2026

Frequently Asked Questions

Is 750W enough for a current-generation gaming build?

Yes for the large majority of systems. An RTX 5070 Ti or RX 9070 XT with a mainstream CPU peaks well under 600W including transients, leaving healthy headroom. Only RTX 5080 and RTX 5090 builds, or systems with many drives and high-core-count processors, genuinely need more than 750W.

What does ATX 3.0 add over an older ATX 2.x supply?

ATX 3.0 mandates tolerance for power excursions up to double the rated output for very short periods, matching the transient spikes of modern GPUs. It also standardises the 12VHPWR connector with sideband signalling so the card knows how much power the supply can deliver. Fewer unexplained shutdowns is the practical benefit.

Should I use the native 16-pin cable or the GPU adapter?

Always use the native cable from an ATX 3.0 supply when one is supplied. It has fewer connection points, no bulky adapter block near the connector, and carries the correct sideband signalling. The four-to-one adapters that shipped with early RTX 40 cards were the source of most reported melting incidents.

Does 80 Plus Gold matter compared with Bronze?

Gold saves roughly five percentage points of efficiency versus Bronze, which translates to a modest electricity saving and slightly less waste heat. The bigger reason to buy Gold is that manufacturers use better capacitors and topology in those models, so the rating is a rough proxy for build quality.

How long should I plan to keep a power supply?

A quality unit with a ten-year warranty realistically serves two or three complete system builds. The main reasons to replace one early are a change of connector standard, such as needing 12V-2×6 for a new GPU, or insufficient wattage. Electrolytic capacitor ageing rarely becomes an issue within the warranty period.