Let’s figure out What are some good options for a 1000W PSU.
Building a high-end gaming rig or workstation requires a power supply that can handle the demands of top-tier components.
When your system includes a flagship GPU like the RTX, 4090, RTX 4080, RTX 3090 and a power-hungry 12-core CPU that will be overclocked, along with multiple drives and peripherals, you need a PSU with plenty of capacity.
That’s where a 1000-watt power supply comes in. With 1000W at your disposal, you’ll have more than enough headroom to drive even the most beastly setups while leaving space for future expansion.
Large 1000W units often have loud fans when stressed. Look for quieter models if fan noise bothers you during intensive gaming or workloads.
Which brands make the most reliable 1000W PSUs? Seasonic, Corsair, EVGA, Cooler Master, and Thermaltake are examples of brands with solid reputations in this high wattage range.
These are the Best 1000W PSU (Gaming, Budget, Corsair, EVGA, PCIE Gen 5 & ATX 3.0)
- Corsair RM1000e : Overall Best 1000W PSU
- MSI MPG A1000G : Best 1000W PSU For Gaming
- ASUS TUF Gaming 1000W : Best Budget 1000W PSU
- EVGA Supernova 1000 G7 : Best 1000W PSU For RTX 4090
- Thermaltake Toughpower GF3 1000W : Best 1000W PSU For RTX 4080
- Apevia ATX-PR1000W : Cheapest 1000W Power Supply
1. Corsair RM1000e : Overall Best 1000W PSU
The newly released Corsair RM1000e 2023 raises the bar for the best 1000W power supplies in 2023. It offers cutting-edge support for ATX 3.0 and PCIe 5.0 to fully utilize next-gen hardware.
This fully modular PSU delivers excellent stability under heavy loads with 105°C-rated Japanese capacitors and a high-quality 135mm fluid dynamic bearing fan for quiet, reliable cooling.
With 80 Plus Gold certification, the RM1000e provides up to 94% energy efficiency, generating less heat and saving on electricity costs.
It has a modern standby mode to keep your gaming PC in a low power state while allowing wake on LAN and other features. Backed by Corsair’s excellent 10 year warranty, the RM1000e is pricey but currently the best overall 1000W PSU on the market.
Features:
- 1000W continuous power
- Fully modular cables
- 80 Plus Gold certified efficiency
- 135mm fluid dynamic bearing fan
- ATX 3.0 and PCIe 5.0 support
- 105°C-rated Japanese capacitors
- Modern standby mode
- 10 year warranty
Pros:
- Supports ATX 3.0 & PCIe 5.0
- Quiet and efficient 80 Plus Gold PSU
- Reliable performance for high-end systems
- Fully modular cables
- 10 year warranty
Cons:
- Fairly expensive
- Lacks RGB lighting
2. MSI MPG A1000G PCIE 5 & ATX 3.0 : Best 1000W PSU For Gaming
MSI’s MPG A1000G checks all the boxes for a best 1000w high-end gaming power supply. It offers 1000W of reliable 80 Plus Gold power paired with PCIe 5.0 and ATX 3.0 compatibility.
The full modular cabling makes for super clean builds, while the stylish MSI Mystic Light RGB adds customizable lighting effects.
This PSU uses premium Japanese capacitors rated to 105°C for rock-solid stability when gaming. The 140mm Torx Fan 4.0 keeps noise levels low even under heavy loads.
Other gamer-focused features include a button to instantly silence the fan and black flat cables for sleek aesthetics. Backed by a 10 year warranty, the MSI MPG A1000G delivers elite performance for top-tier gaming rigs.
MSI MPG A1000G Features :
- 1000W continuous power
- Fully modular cables
- 80 Plus Gold certified efficiency
- MSI Mystic Light RGB lighting
- 140mm Torx Fan 4.0
- 105°C-rated Japanese capacitors
- PCIe 5.0 and ATX 3.0 ready
- 10 year warranty
Pros:
- PCIe 5.0 and ATX 3.0 ready
- 80 Plus Gold efficiency
- MSI Mystic Light RGB lighting
- 10 year warranty
Cons:
- Relatively expensive for a 1000W PSU
- Cables aren’t the most flexible
3. ASUS TUF Gaming 1000W Gold : Best Budget 1000W PSU
For builders on a budget, the ASUS TUF Gaming 1000W Gold packs impressive value into its reasonable price tag. It provides 80 Plus Gold efficiency, a fully modular design, and 100% Japanese capacitors rated for high temperatures. This PSU can handle overclocked components and demanding GPUs thanks to its single +12V rail delivering up to 83A.
The 135mm axial-tech fan stays quiet across wide load ranges for smooth gaming sessions. This PSU also boasts comprehensive protections, military-grade components tested to high standards, and a durable matte black finish. Topping it off is ASUS’ excellent 10 year warranty for peace of mind. Overall, the TUF Gaming 1000W Gold gives budget-focused gamers elite power at an affordable price point.
ASUS TUF Gaming 1000W Gold Features:
- 1000W continuous power
- Fully modular cables
- 80 Plus Gold certified efficiency
- 135mm axial-tech fan
- 100% Japanese capacitors
- Single +12V 83A rail
- 10 year warranty
- Matte black finish
Pros:
- Excellent value for a 1000W PSU
- Fully modular cabling
- 10 year comprehensive warranty
- Quiet cooling fan
Cons:
- Not as efficient as pricier models
- Cables could be more flexible
4. EVGA Supernova 1000 G7 : Best 1000W PSU For RTX 4090
NVIDIA’s monstrous RTX 4090 graphics card demands a top-tier power supply like the EVGA Supernova 1000 G7. This 1000W beast provides an incredible 100A on the new dedicated 12VHPWR connector specifically for next-gen GPUs. That’s plenty of overhead for maxed out overclocking on the RTX 4090.
The fully modular design makes builds clean and easy. This PSU is 80 Plus Gold certified for efficiency and uses a fluid dynamic bearing fan for quiet operation. EVGA’s excellent 10 year warranty provides peace of mind for such a major component. With its cutting-edge 12VHPWR support, compact size, and EVGA’s reputation for quality, the 1000 G7 is the ideal choice for powering the mighty GeForce RTX 4090.
EVGA Supernova 1000 G7 Features:
- 1000W continuous power
- Fully modular cables
- 80 Plus Gold certified efficiency
- 120mm fluid dynamic bearing fan
- Dedicated 12VHPWR connector
- Compact 130mm size
- 10 year warranty
Pros:
- Dedicated 12VHPWR connector for RTX 4090
- 80 Plus Gold certified
- 10 year comprehensive warranty
- Compact 130mm size
Cons:
- Cables are a bit stiff
- No RGB lighting
5. Thermaltake Toughpower GF3 1000W : Best 1000W PSU For RTX 4080
The Thermaltake Toughpower GF3 1000W stands out with two true 600W 12VHPWR connectors ready for NVIDIA’s new power-hungry RTX 4080 graphics card. This 80 Plus Gold PSU delivers excellent efficiency and stable power for high-end systems. It’s compatible with ATX 3.0 and PCIe 5.0 for next-generation components.
Thermaltake implemented high-quality construction including 100% Japanese capacitors, a patented 16.8 million color Riing Duo RGB fan, and full modular cabling for a clean build. Backed by a generous 10 year warranty, the Toughpower GF3 1000W has all the premium features you want for running the power-hungry NVIDIA GeForce RTX 4080. It’s the ultimate PSU for an epic RTX 4080 gaming rig.
Thermaltake Toughpower GF3 1000W Features:
- 1000W continuous power
- Fully modular cables
- 80 Plus Gold certified efficiency
- 16.8 million color Riing Duo RGB fan
- Dual 12VHPWR connectors
- PCIe 5.0 and ATX 3.0 ready
- 100% Japanese capacitors
- 10 year warranty
Pros:
- Dual 12VHPWR connectors for RTX 4080
- ATX 3.0 and PCIe 5.0 compatible
- Bold Riing Duo RGB fan
- 10 year warranty
Cons:
- Expensive
- Large size may not fit all cases
6. Apevia ATX-PR1000W Prestige : Cheapest 1000W Power Supply
Our last pick in this category is, the Apevia Prestige 1000W delivers surprisingly solid performance at an affordable price. This 80 Plus Gold certified PSU provides up to 83A on the single +12V rail. It includes the new 12VHPWR connector ready for power-hungry graphics cards.
While you don’t get premium features like modular cables or an ultra-quiet fan, the Apevia still uses good quality components like Japanese capacitors. The standard fixed cables keep costs down for those less concerned about a tidy build. It packs great value plus ample power to drive high-end systems. Just don’t expect lavish extras at this price point. But for reliable 1000W on a budget, the Prestige gets the job done.
Apevia Prestige 1000W Features:
- 1000W continuous power
- Fixed, non-modular cables
- 80 Plus Gold certified efficiency
- Standard 120mm sleeve bearing fan
- Single +12V 83A rail
- Japanese capacitors
- 12VHPWR connector
- 5 year warranty
Pros:
- Inexpensive pricing for 1000W
- 12VHPWR connector for GPUs
- 80 Plus Gold efficiency
- Japanese capacitors
Cons:
- No modular cabling
- Basic loud fan
- Limited 5 year warranty
How to choose the Right 1000W Power Supply
Here are some tips on how to choose the best 1000W power supply for your needs:
- Look for 80 Plus Gold or higher certified efficiency to save on electricity costs and heat. The highest rating is 80 Plus Titanium.
- Make sure it provides enough amps on the +12V rail(s) to handle power-hungry components like high-end GPUs and CPUs. At least 83A on a single rail is ideal.
- Fully modular is preferable for easy cable management, but semi-modular can also work well for tidier builds.
-Aim for a 135mm or larger fan size, as this typically runs quieter than smaller fans when under heavy load. Look at noise ratings.
-Quality internal components like Japanese capacitors will enhance durability and lifespan.
-Get a PSU with Over Power Protection, Over Voltage Protection, Under Voltage Protection, Short Circuit Protection, and Over Temperature Protection.
-Look for a minimum 7 year, preferably 10 year warranty for a 1000W PSU. This indicates confidence in its reliability.
-The brand and reputation of the PSU manufacturer matters. Stick with seasoned companies like Corsair, EVGA, Seasonic, and Thermaltake.
-Pay attention to the dimensions as 1000W PSUs tend to be larger. Make sure it will fit in your case.
-Consider whether you need multi-GPU support, modular cables, or other fancy features. These raise costs.
-Aim for the $150-$250 price range for the best balance of quality and value. Go higher if budget allows.
Following these guidelines will help you select a 1000W power supply built to last and power your high-end system for years to come.
Conclusion
When building a cutting-edge gaming rig or workstation, choosing the right 1000W power supply is critical to provide plenty of stable and efficient power. This guide has covered the top options currently available to handle powerful setups with flagship GPUs, heavily overclocked CPUs, multiple components, and future upgrades.
For powering single ultra-high-end video cards like the RTX 3090 or RTX 4090, the EVGA Supernova 1000 G7 is an excellent choice thanks to its dedicated 12VHPWR connector and quiet, reliable performance. Those seeking to run dual GPUs in SLI can benefit from Thermaltake’s Toughpower GF3 1000W and its dual 12VHPWR connectors ready for intense multi-card action.
Gamers who want fully modular cables for clean builds paired with customizable RGB lighting will appreciate options like the MSI MPG A1000G. For workstations running intensive applications, Corsair’s RM1000e offers cutting-edge ATX 3.0/PCIe 5.0 support and rock-solid stability. And budget buyers get excellent value from picks like the ASUS TUF Gaming 1000W Gold.
No matter your specific needs – silent operation, modular cabling, multi-GPU configs, or maximizing longevity – one of these best-in-class 1000W power supplies will capably power your system for years while providing efficiency, reliability, and plenty of headroom. Choosing the right 1000W PSU is a foundational decision, so weigh the pros and cons carefully for your use case. And remember to protect your valuable components by never skimping on a high-quality power supply.
FAQs
For most gaming PCs, yes a 1000W power supply is overkill. A quality 650W or 750W PSU is sufficient for the majority of single GPU setups, even with power-hungry components like an RTX 3080 or RTX 3090. 1000W is best reserved for enthusiasts running multiple high-end graphics cards, extreme overclocking, or future-proofing their system. Otherwise, it’s more wattage than necessary for the average user.
A 1000W power supply is overkill for a system powered by a single RTX 3080. Nvidia recommends a minimum 750W PSU for the RTX 3080, and a quality 750W or 850W PSU will provide plenty of headroom even for overclocking the GPU. There’s no benefit in going up to 1000W for a single RTX 3080 card, unless you have many other power-hungry components. The extra wattage will be unused in most cases.
Yes, a 1000W PSU will work very well for a system with an RTX 3080, providing more than enough power headroom. However, it’s overkill and unnecessary in most cases. The RTX 3080 will run perfectly fine on a 750W or 850W quality power supply, without needing the excess capacity of a 1000W unit. Unless you plan to run two RTX 3080s in SLI or have an exceptionally power hungry CPU overclock, you can save money by sticking to 850W or lower for a single RTX 3080 build.
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