EVGA SuperNOVA 1300 P+ 1300W Power Supply

EVGA SuperNOVA 1300 P+ 1300W Power Supply — image 1
EVGA SuperNOVA 1300 P+ 1300W Power Supply — image 2
EVGA SuperNOVA 1300 P+ 1300W Power Supply — image 3
EVGA SuperNOVA 1300 P+ 1300W Power Supply — image 4
EVGA SuperNOVA 1300 P+ 1300W Power Supply — image 5
EVGA SuperNOVA 1300 P+ 1300W Power Supply — image 6
EVGA SuperNOVA 1300 P+ 1300W Power Supply — image 7
EVGA SuperNOVA 1300 P+ 1300W Power Supply — image 8
83%
91%
Build Quality
93%
Power Stability
88%
Noise Level
89%
Modularity & Cable Management
84%
Efficiency
87%
Warranty & Support
71%
Value for Money
66%
Physical Fit & Compatibility
82%
Connector Selection
86%
Fan Longevity
78%
Unboxing & Documentation
85%
Thermal Management
74%
Brand Confidence
More

Overview

The EVGA SuperNOVA 1300 P+ 1300W Power Supply is a high-capacity unit built for enthusiast builders and workstation users who need serious power headroom — not just today, but for whatever comes next. EVGA has long been a respected name in the PSU space, and the SuperNOVA P+ line sits near the top of their efficiency-focused offerings. The 80 Plus Platinum certification matters here as an indicator of engineering quality, not just a badge. That said, be honest with yourself: at 1300 watts, this is overkill for a mid-range gaming rig. If you're running an RTX 4090 with a high-TDP CPU, or planning a multi-GPU workstation, the headroom makes real sense.

Features & Benefits

This 1300W Platinum PSU packs several features that matter beyond raw wattage. The fully modular cable system is a genuine quality-of-life improvement — you only connect what you need, keeping cable routing clean and airflow unobstructed. Under the hood, 100% Japanese capacitors combined with a DC-DC converter keep the 3.3V and 5V rails stable under demanding loads, which translates to more consistent system behavior. The double ball bearing fan, paired with ECO Mode, stays near-silent during lighter tasks and only ramps up when heat demands it. A 10-year warranty and a bundled Power On Self Tester — handy for diagnosing issues without a full system boot — round out a well-thought-out package.

Best For

This high-capacity power supply makes most sense for a specific type of builder. If you're running an RTX 4090 or a power-hungry workstation setup, the 1300 watts gives you real headroom rather than pushing your PSU to its limits constantly. Content creators doing sustained 3D rendering or video production will appreciate the stable rail output and quiet operation during long sessions. It also suits builders who treat a PC build as a decade-long investment — the warranty and component quality support that mindset well. If you're upgrading from a Gold-rated unit, the efficiency difference is real but modest; the bigger win here is reliability and room to grow.

User Feedback

With a 4.1-star average from over 200 buyers, this EVGA SuperNOVA unit earns solid marks for build quality and near-silent operation. Buyers consistently praise the modular setup and the confidence that comes with a decade-long warranty. On the critical side, some owners flag the unit's physical size — at nearly 7 inches wide and over 18 inches long, it can be tight in smaller mid-tower cases. A few reviewers note that competing Platinum-tier options from Seasonic or Corsair offer similarly strong specs, making the decision partly about brand preference. Mentions of EVGA's customer service are mostly positive, though the company's exit from the GPU market occasionally raises questions about long-term support among cautious buyers.

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Pros

  • Fully modular design makes cable management noticeably cleaner and less frustrating during the build process.
  • 80 Plus Platinum efficiency keeps heat output lower and reduces energy waste under heavy sustained loads.
  • The 10-year warranty is among the longest offered by any PSU brand at this tier — real peace of mind.
  • ECO Mode keeps the fan near-silent during light workloads, which is a genuine daily quality-of-life benefit.
  • 100% Japanese capacitors and DC-DC voltage regulation deliver stable, clean power across all rails.
  • The bundled Power On Self Tester is a surprisingly useful diagnostic tool that saves time during troubleshooting.
  • 1300 watts of headroom means this unit will not be a bottleneck even as GPU power demands continue to rise.
  • User feedback consistently praises build quality, with few reports of premature failure or coil whine.

Cons

  • At over 18 inches long, this EVGA SuperNOVA unit can be a tight fit in many standard mid-tower cases.
  • The 9-pound weight makes it one of the heavier PSUs in its class, which matters in certain rack or transport scenarios.
  • The price premium is hard to justify for anyone not running a genuinely power-hungry system.
  • EVGA's exit from the GPU market has left some buyers uncertain about the brand's long-term product support.
  • Competing Platinum-rated units from Seasonic and Corsair offer comparable specs and may be easier to source.
  • The efficiency gains over a Gold-rated PSU are real but modest in typical home use — savings are not dramatic.
  • No RGB or aesthetic features whatsoever, which may matter to builders prioritizing a windowed, themed build.
  • For occasional or light PC users, the warranty length and spec level represent money spent on benefits unlikely to be used.

Ratings

Our AI rating engine analyzed verified global buyer reviews for the EVGA SuperNOVA 1300 P+ 1300W Power Supply, actively filtering out incentivized, bot-generated, and duplicate submissions to surface what real builders actually experience. Scores reflect a balanced synthesis of both enthusiastic praise and honest frustrations — nothing is glossed over. Strengths and recurring pain points are weighted equally so you can make a fully informed decision.

Build Quality
91%
Buyers consistently describe the physical construction as dense and confidence-inspiring right out of the box — the kind of unit that feels like it belongs in a high-end build. The all-Japanese capacitor selection and robust modular connector panel show no signs of cheap cost-cutting, and long-term owners report no degradation in feel or function after years of use.
A small number of reviewers flagged cosmetic inconsistencies in the cable braiding quality, which feels slightly out of step with the premium price tier. At 9 pounds, the chassis is also noticeably heavier than competing units, which can complicate installation in tighter or more awkward case orientations.
Power Stability
93%
The DC-DC converter architecture keeps the 3.3V and 5V rails exceptionally stable even during rapid load swings — something enthusiasts running memory-intensive workloads or multi-GPU setups notice and appreciate in practice. Reviewers doing sustained rendering or gaming sessions report clean, consistent delivery with no perceptible voltage dips.
A handful of technically inclined users running advanced rail monitoring software noted minor ripple on the 12V line during extreme load spikes, though readings remained well within ATX specification tolerances. This is unlikely to affect real-world system stability but is worth noting for those running precision-sensitive workloads.
Noise Level
88%
ECO Mode is genuinely appreciated by buyers who leave their systems running for extended periods — the fan stays completely off during light desktop use, making this one of the quietest PSUs at this wattage range under moderate loads. Content creators working late in quiet environments specifically call out the near-silence as a daily comfort benefit.
Under sustained full-load conditions — extended GPU stress tests or overnight rendering jobs — the fan ramps up to audible levels, which some buyers found louder than expected given the premium positioning. It never becomes disruptive, but those expecting near-silence under all conditions may need to recalibrate their expectations.
Modularity & Cable Management
89%
The fully modular system is one of the most consistently praised aspects across reviews — builders appreciate starting with a clean slate and only routing what the build actually requires. Cable routing in windowed full-tower cases becomes noticeably tidier, and the connector quality is firm enough to seat confidently without feeling flimsy.
Several users found the included cables slightly stiff, making tight routing in compact cases more frustrating than expected for a fully modular unit. A few also wished the cable lengths were longer for large full-tower configurations where routing distances between PSU shrouds and upper motherboard connectors stretch the stock cables.
Efficiency
84%
Operating at 92% efficiency or better under typical loads means this high-capacity power supply wastes noticeably less energy as heat compared to Gold-rated alternatives — a tangible benefit for systems that run under heavy load for many hours daily. Over a full year of intensive use, the efficiency difference translates into a real reduction in thermal output inside the case.
For typical home users who game a few hours per day, the real-world electricity savings compared to a Gold-rated unit are modest — we are talking a few dollars monthly at best, which makes efficiency alone a weak justification for the price premium. Buyers expecting dramatic energy bill reductions may be slightly disappointed by the practical reality.
Warranty & Support
87%
The 10-year warranty is one of the longest in the PSU industry and is a genuine differentiator that experienced builders factor heavily into total cost of ownership calculations. Reviewers who have interacted with EVGA support generally report responsive service and smooth RMA processing, which adds real confidence to the warranty claim.
EVGA's exit from the GPU market has introduced a lingering uncertainty among some buyers about the brand's long-term operational commitment, even though PSU support remains officially active. A small subset of reviewers reported slower-than-expected RMA turnaround times in recent months, suggesting support infrastructure may not be as robust as it once was.
Value for Money
71%
29%
For builders running an RTX 4090 or similar power-demanding configuration, the combination of 1300W headroom, Platinum efficiency, Japanese capacitors, and a decade-long warranty creates a genuinely compelling package at this price level. The included Power On Self Tester adds meaningful practical value that competitors rarely bundle.
For the majority of users who do not need more than 1000W, comparable Platinum-tier units from Seasonic or Corsair deliver near-identical real-world results at a lower price point. The premium here is partly for wattage headroom most buyers will never use, which makes the value proposition heavily dependent on your actual system requirements.
Physical Fit & Compatibility
66%
34%
Standard ATX form factor ensures broad motherboard compatibility, and the 24-pin connector seats cleanly with no fitment issues reported across popular current-generation board layouts. Full-tower owners universally report zero installation problems.
At 18.3 inches in length, this unit is a genuine fit problem in many standard mid-towers and is completely incompatible with compact or ITX cases. Multiple reviewers discovered the clearance issue only after purchase, which is a frustrating and avoidable outcome — always verify PSU depth limits in your specific case before buying.
Connector Selection
82%
18%
The included cable set covers a wide range of connectivity needs — multiple PCIe connectors, plenty of SATA leads, and CPU power options that accommodate both 4-pin and 8-pin EPS configurations. Builders running storage-heavy rigs appreciate having enough SATA connectors to avoid daisy-chaining drives on a single cable.
Some buyers targeting the latest PCIe 5.0 GPU power requirements noted the absence of a native 16-pin 12VHPWR connector, requiring an adapter for RTX 40-series cards. While adapters are functional, paying a premium price for a unit that lacks this connector natively feels like a gap given when GPU power standards were already shifting at the time of release.
Fan Longevity
86%
Double ball bearing fans have a well-established track record of outlasting sleeve-bearing alternatives by a meaningful margin, particularly in environments where the fan cycles on and off frequently — as ECO Mode causes. Buyers who have owned the unit for two or more years report no degradation in fan noise or behavior.
ECO Mode's stop-start cycling does place more mechanical stress on the fan bearings over time compared to a unit that runs continuously at low speed. While double ball bearings handle this better than alternatives, it remains a theoretically higher-wear pattern than some reviewers would prefer in a long-term ownership scenario.
Unboxing & Documentation
78%
22%
The packaging is protective and organized, with cables bagged separately and the Power On Self Tester clearly included — a thoughtful touch that signals the box was assembled with actual builders in mind. First-time PSU buyers appreciated the clear labeling on each modular cable bag.
The included documentation is fairly minimal for a premium unit — setup guidance is basic and the manual offers little help for troubleshooting or understanding ECO Mode behavior in detail. Buyers who needed nuanced setup guidance were generally directed to online resources rather than finding answers in the box.
Thermal Management
85%
The combination of Platinum efficiency and ECO Mode means the unit generates significantly less waste heat than lower-efficiency alternatives, which has a measurable positive effect on internal case temperatures during sustained workloads. Builders in warm ambient environments particularly noted this as a real benefit.
Under prolonged maximum load the exhaust temperature rises noticeably, and a few users building in less ventilated enclosures flagged slightly elevated case temps as a side effect. Proper case airflow planning is still necessary — this unit does not compensate for a poorly ventilated chassis.
Brand Confidence
74%
26%
EVGA built a strong reputation in the PSU category over many years, and most buyers who have followed the brand trust the SuperNOVA line specifically as a proven, well-tested product family. The 10-year warranty helps offset any brand uncertainty by providing a long contractual safety net.
EVGA's high-profile exit from the discrete GPU market created genuine concern among some buyers about long-term parts and support availability, even for their PSU line. This perception issue affects purchase confidence more than actual support quality warrants, but it is a real factor that appears repeatedly in buyer commentary.

Suitable for:

The EVGA SuperNOVA 1300 P+ 1300W Power Supply is built for a specific kind of builder — one who either already has a power-hungry system or is planning one. If you are running an RTX 4090 or a high-TDP processor like a Core i9 or Threadripper, the 1300 watts gives you genuine overhead rather than pushing a smaller unit to its ceiling under sustained load. Multi-GPU workstation users and content creators doing long rendering sessions will appreciate the stable rail output and quiet semi-passive fan behavior during demanding tasks. Enthusiasts who treat a build as a long-term investment will find the 10-year warranty and high-grade internal components a compelling argument for paying the premium. It also suits anyone upgrading from an older Gold-rated unit who wants to stop worrying about PSU reliability for the foreseeable future.

Not suitable for:

If you are building a mid-range gaming PC around a GPU like an RTX 4060 or RX 7600, this high-capacity power supply is simply more than you need — and you will pay a significant premium for wattage headroom you will rarely, if ever, touch. Budget-conscious builders can find capable 850W or 1000W Gold or Platinum units at a notably lower price point that cover the vast majority of consumer gaming builds comfortably. The physical size is also worth flagging: at over 18 inches long and 9 pounds, it can be a tight or even impossible fit in compact mid-towers and ITX cases, so checking case PSU clearance before buying is not optional. Buyers who are uncertain about EVGA's long-term brand trajectory following their GPU market exit may also want to weigh alternatives from Seasonic or Corsair, who maintain broader current product lines. If your priority is simply getting a reliable unit online fast at a lower cost, competitors in the same efficiency tier may offer better value for typical use cases.

Specifications

  • Wattage: This unit delivers a continuous 1300W of output power, providing substantial headroom for high-TDP CPUs and top-tier discrete GPUs running simultaneously under sustained load.
  • Efficiency Rating: Certified 80 Plus Platinum, meaning it operates at 92% efficiency or higher under typical loads, which reduces both heat output and energy waste compared to lower-rated units.
  • Modularity: Fully modular design allows builders to attach only the cables they need, reducing internal clutter and simplifying airflow management within the case.
  • Form Factor: Standard ATX form factor with a 24-pin main connector, making it compatible with the vast majority of full-tower and mid-tower ATX motherboard configurations.
  • Dimensions: The unit measures 18.3 x 6.8 x 10.5 inches, which is notably long and should be verified against your case's PSU clearance before purchase.
  • Weight: At 9 pounds, this is a heavier-than-average PSU in its class, reflecting the density of its internal components and build materials.
  • Capacitors: Internal capacitors are sourced entirely from Japanese manufacturers, which is associated with tighter tolerances, lower failure rates, and better performance over extended operating lifespans.
  • Voltage Regulation: A DC-DC converter design is used to regulate the 3.3V and 5V rails independently, improving stability and reducing ripple on the lines most sensitive to fluctuation.
  • Fan Type: A double ball bearing fan is used rather than sleeve bearings, offering a longer operational lifespan and more consistent performance under high-temperature conditions.
  • Fan Mode: EVGA ECO Mode enables semi-passive operation, keeping the fan off or at minimal speed during light system loads to reduce acoustic output during everyday tasks.
  • Cooling Method: Air-cooled via a single internal fan that scales speed in response to internal temperature and load, with ECO Mode managing low-load quietness automatically.
  • Warranty: Backed by a 10-year manufacturer warranty, which is among the most generous coverage periods offered by any PSU brand currently active in the enthusiast market.
  • Included Accessory: A Power On Self Tester is included in the box, allowing users to verify PSU function independently of a full system build — a practical diagnostic tool for builders and enthusiasts.
  • Main Connector: Features a standard 24-pin ATX main connector for motherboard power delivery, compatible with current-generation ATX and ATX 3.0 adjacent board layouts.
  • Target Platform: Designed for personal computers, specifically enthusiast desktop builds requiring high sustained wattage across CPU, GPU, storage, and auxiliary components simultaneously.

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FAQ

Honestly, for most single-GPU setups — even a high-end RTX 4080 paired with a modern Intel or AMD CPU — a quality 850W or 1000W unit is sufficient. The 1300W makes more sense if you are running an RTX 4090 with a very power-hungry processor, planning a multi-GPU workstation, or simply want a large efficiency buffer to future-proof against next-generation hardware demands.

It might, but you need to check carefully. At just over 18 inches in length, this high-capacity power supply is on the longer end of the ATX PSU spectrum. Many standard mid-towers accommodate PSU lengths of around 7 to 8 inches, and some only support up to 12 inches. Check your case specifications before ordering — full-tower cases are the safer bet.

Yes, EVGA has confirmed ongoing support for their power supply product line despite stepping away from GPU manufacturing. The 10-year warranty on this unit remains active and honored through EVGA's support channels. That said, it is worth keeping your purchase receipt and registering the product with EVGA directly to make any future warranty claim process smoother.

Under typical desktop loads — browsing, light gaming, or media playback — ECO Mode keeps the fan near-silent or completely stopped. You will likely not notice it at all during day-to-day tasks. The fan ramps up meaningfully only when the system is under sustained high load, and even then the double ball bearing design keeps noise levels reasonable compared to cheaper fan mechanisms.

It lets you confirm that the PSU is functional without needing a motherboard or full system assembled. You plug the tester into the 24-pin connector, power on the PSU, and the tester indicates whether the unit is outputting correctly. It is a small but genuinely useful tool, especially when troubleshooting a build or diagnosing whether a system issue is PSU-related.

All three brands produce respected Platinum-tier units and use similarly high-quality internals. The EVGA stands out primarily for its 10-year warranty, which is longer than most Corsair equivalents. Seasonic, on the other hand, actually manufactures PSUs for several other brands and has an equally strong reliability reputation. The honest answer is that at this tier, the competition is close — choosing often comes down to pricing at the time of purchase and personal brand preference.

Yes, comfortably. The RTX 4090 can draw up to around 450W under full load, and when combined with a high-end CPU and system overhead, total draw rarely exceeds 800 to 900W in most configurations. At 1300 watts, this EVGA SuperNOVA unit handles that load with significant headroom to spare, which keeps the PSU running well below its stress threshold for longer component life.

In practice, yes — especially in cable-dense or tightly managed builds. With a non-modular or semi-modular PSU, you are bundling and hiding unused cables regardless. With a fully modular unit, you simply do not attach what you do not need, which makes routing cleaner from the start and keeps the interior tidier. It is one of those features that seems minor until you have built with both types and then prefer modular every time.

The efficiency gap between Gold and Platinum is real but modest in typical home use — roughly a few percentage points, which translates to minor savings on your electricity bill over time. The stronger argument for a Platinum unit at this price level is what the certification implies: tighter engineering tolerances, better components, and lower operating heat. The efficiency rating is more a byproduct of quality than the primary reason to spend more.

The box includes a full set of modular cables covering the 24-pin ATX connector, CPU EPS connectors, PCIe connectors, SATA power leads, and peripheral connectors. Third-party modular cables exist and can work with EVGA SuperNOVA units, but you should confirm pinout compatibility before using any non-EVGA cable, as PSU modular pinouts are not universally standardized and using an incompatible cable can cause serious damage.

Where to Buy

SHI International
EVGA SuperNOVA 1300 P+ 1300W Power Supply
In stock $1,300.00
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