As we know the Intel core i9-13900K is one of the most powerful processors right now, and there is no head-to-head competitor of this processor that can reach the benchmark score of this Intel core i9-13900K.
This processor comes with a base TDP of 125 Watts and it has a max turbo TDP of 253 Watts which means that if we pair this processor with NVidia’s latest RTX 4090 GPU then the combined TDP will reach about 600 and above because NVIDIA RTX 4090 has a TDP of 450 watts, meaning that the minimum PSU required for this build should be 1000 Watts and recommended should be 1200 Watts.
If you are confused about choosing a good GPU for Intel Core i9-13900K then read our guide for “Best GPUs For Intel i9-13900K (Updated)“
Also Checkout: The complete Build Guide For Intel Core i9-13900K
Intel Core I9-13900K CPU Build Guide:
Building a complete PC is not an easy work, it requires enough technical knowledge about gaming components or you will need a good guide to make your own PC by yourself, so here we have brought the total guide which you need for building a complete Intel Core i9-13900K PC, in this guide I’m suggesting the best PSUs (Power Supply Unit) for Intel core i9-13900K CPU.
Best PSU For Intel Core i9-13900k CPU:
Below are the recommended PSU to consider for Intel core i9-13900K:
- Thermaltake Toughpower GF3 ATX 3.0 Power Supply
- Corsair HX Series, HX1200, 1200 Watt 80+ PSU
- Corsair RMX Series (2021), RM1000x
Best PSU For Intel Core i9-13900k
Thermaltake Toughpower GF3 ATX 3.0 Power Supply
Corsair HX Series, HX1200, 1200 Watt 80+ PSU
Corsair RMX Series (2021), RM1000x-For Intel Core i9-13900K
Below is the Peak Power usage for a build of Intel Core i9-13900K:
| Component | Peak Power Usage |
|---|---|
| 13900K CPU | 253 W |
| Top-Tier Graphics Card (e.g., Nvidia RTX 4090) | 450 W |
| Mid-Tier Graphics Card (e.g., Nvidia RTX 3060) | 170 W |
| Motherboard | 80 W |
| 3.5″ Hard Drive | 9 W |
| M.2 or 2.5″ SSD | 9 W |
| 140 mm or 120mm Case/CPU Fan | 6 W |
| 80 mm Case/CPU Fan | 3 W |
| Total Wattage Use | 840 to 700 Watts |
Below are the Efficiency Scores for different PSU Ratings:
| 80+ Rating | Efficiency Level |
| 80+ Gold | 20% Load: 87% 50% Load: 90% 100% Load: 87% |
| 80+ Platinum | 20% Load: 90% 50% Load: 92% 100% Load: 89% |
| 80+ Titanium | 20% Load: 90% 50% Load: 92% 100% Load: 94% |
1. Thermaltake Toughpower GF3 ATX 3.0 Power Supply:
Thermaltake Toughpower GF3 ATX 3.0 (Best Overall):
The most recommended PSU for Intel Core i9-13900K paired with the latest Nvidia RTX 4090 GPU should be above 1000 Watts. I will recommend going for a 1000W or higher PSU because there are several other components that require enough power that allows the pc to reach the maximum power usage of around 1000 watts and above. Components like motherboard SSDs and RGB lighting take enough power from the PSU.
PCI-e 5.0
The first recommended PSU for Intel Core i9 13900k and RTX 4090 will be Thermaltake Toughpower GF3 ATX 3.0 because this PSU is best for high-performance gaming PCS, this PSU is not very Power efficient but it is one of the best performing PSU for the next-gen GPUs like RTX 4090 and 4080. The best thing about this PSU is that it is a PCI-e 5.0-ready PSU meaning that a single cable from the PSU goes to the GPU, thus this new feature improves the cable management of the PC.
600W To GPU:
The latest features of PCI-e 5.0 allows your GPU to take maximum power as required by ongoing workload. The maximum peak wattage your GPU can use is 600, this is totally insane power that can put your GPU to perform any heavy work, this will also allow your GPU to run games without any bottleneck due to power limitations.
Universal PSU (SATA, Molex and PCI-e 6+2-Pin):
This PSU is not only a perfect PSU for next-gen PC builds but it also has all the support for older PCS, as it comes with the old Molex and SATA cables. It also has a PCI-E 6+2-Pin Cable which makes it a universal PSU, the purpose of including these cables is to allow support for older GPUs like RTX 2080, etc.
Conclusion:
The bad point about this PSU is that it is ranked as 80 + gold which means that this PSU is not very power efficient so apparently this PSU will use higher electricity than other PSUs ranked as 80+ Platinium and 80+ Tatimiun.
The final statement about this PSU is that it is best for peak-performance PC builds with next-gen GPUs and the latest CPUs like Intel i9-13900K, but this PSU is not the best option for mid-range CPUs and older GPUs.
Thermaltake Toughpower GF3 ATX 3.0 Power Supply
Brand: Thermaltake
Wattage: 1200 W
Connectors: PCIe 12+4pin connector
The Pros:
- ATX v3.0 and PCIe 5.0 ready
- Efficient at light and super-light loads
- Long hold-up time
- High PF with 230V
- Comes with a long 10 years of replaceable warranty
- Fully modular PSU
- Load regulation
- 1250 watts enough for Intel i9-13900k with RTX 4090
- Perfectly placed peripheral connectors
- Comes in best overall PSUs for intel core i9-13900k
- Improves cable management of PC
- Comes with PCI-E 6+2-Pin Cable for GPUs not supporting PCI 5.0
- PCI-E 5.0 Power Cable for GPUs like RTX 4090, providing upto 600W of power
- SATA and Molex Cables also included
The Cons:
- Noisy and loud when the components needs more power
- Expensive
- High inrush current with 230V
- Load regulation could be better
- 80+ Gold rated efficiency is not valuable for this priced PSU
Recommended Intel Core I9-13900K Build With Thermaltake Toughpower GF3 PSU:
| Image | Product | Specs | Stores |
|---|---|---|---|
 | Intel Core i9 13900K | Brand: Intel CPU Speed:5.80 GHz CPU Socket: LGA 1700 | Amazon $617.99 Newegg $598.99Walmart $599.99 |
 | Alphacool Eisbaer Pro Aurora 360-Best Cooler Master | Brand: Alphacool Noise Level: 25 dB RPM:2000 RPM | Amazon $221.99Newegg $248.99 |
 | ASUS ROG Maximus Z790 Apex Motherboard | Brand: ASUS Chipset: Z790 Powerstages: 24+0 @ 105A Memory:DDR5 | Amazon $699.99Newegg $699.99 |
 | Zotac Gaming NVidia RTX 4090 GPU | Brand: Zotac Memory: 24GB Bits:384bits GPU Clock:2520 MHz | Amazon $2,129.99Newegg $3,229.99 |
 | G. Skill Trident Z5 DDR5-6000 32GB | Brand : G Skill RAM Memory Technology: DDR5 Memory Speed: 6000 MHz | Amazon $179.99Newegg $179.99eBay $219.99 |
 | Samsung 980 PRO | Brand : SAMSUNG SSD Type : NVMe Capacity : 1 TB | Amazon $86.99Walmart $89.99Newegg $99.99 |
 | Phanteks Eclipse P500 | Brand: Phanteks Case Type: Mid Tower | Amazon $160.99Newegg $149.99eBay $236.99 |
 | Thermaltake Toughpower GF3 ATX 3.0 Power Supply | Brand: Thermaltake Wattage:1200 Connector Type:24-pin | Amazon $249.99Newegg $229.99 |
 | Corsair LL Series LL120 RGB 120mm Fans | Brand: EVGA Wattage:1000 Connector Type:ATX, PCI Express | Amazon $34.99Newegg $35.99Walmart $56.99 |
2. Corsair HX Series, HX1200, 1200 Watt 80+ PSU:
Corsair HX Series, HX1200
The second power supply we will recommend for Intel core i9-13900K is Corsair HX Series, HX1200, there are several reasons we brought up this PSUas the second recommended PSU for Intel corei9 latest 13 gen Raptor Lake CPUs the first reason is the total wattage of this PSU which is 1200, the advantage of using a PSU higher wattage will allow you to use any next-gen GPU and if you don’t have one then it’s better for future that you can upgrade your GPU with no need of changing and upgrading the PSU.
Efficient Than Thermaltake G3:
One more good thing about this PSU is that it is more efficient than the above Thermaltake G3 PSU although it has a rating of 80 plus. This Corsair HX series is going very famous among gamers because of their good build quality and premium performance with efficiency, and also the older Corsair RMx model PSUs were ranked as top sellers for years. Although Corsair has done some changes in these new models from the previous RMx series PSUs.
In the previous RM model, the material quality and fan quality were superb but now in the Corsair HX series, PSUs Corsair has lowered the quality of the fan to bring a reduction in prices of the PSUs and, make them more affordable to buy.
For some people, this change may be helpful if they are on a tight budget but some people were hoping for more betterment which would increase the prices of Corsair PSUs by more and would make it unworthy to buy, In my opinion, it was a good step taken by corsair.
Cables:
Out of the box, you will get a bunch of cables inside a small bag, those cables include a power cable, 24 pin cable that goes to the motherboard, a CPU cable if you have a powerful CPU like Intel core i9-13900K, and many more cables which may you don’t even need at first.
Top-class Performance:
The PSU is built great, it looks very solid and sturdy, also the fan is silent and strong which will allow the PSU to reach full power at only 46-degree temperature. Overall performance of the PSU is very satisfying, it has a completely robust performance to work with any kind of PC Build whether for gaming or workstation.
This PSU has better load regulation than the above Thermaltake G3 1250W along with this it has a good inrush current and long holdup time, thus making the PSU more reliable and trustworthy.
Corsair HX Series, HX1200
Brand: Corsair
Wattage: 1200W
cables: 24pins
The Pros:
- Full power at 46°C
- Efficient at heavy workloads and also light works
- Ripple suppression
- Load regulation
- Inrush current
- Fully modular PSU
- 1200 watts enough for Intel i9-13900k with RTX 4090
- Great build quality
- Stable and noisless PSU
- 2x EPS & 8x PCIe connectors
- Ability to switch to multi +12V rail mode
- 10-year warranty
- SATA and Molex Cables also included
The Cons:
- Not better than Thermaltake Toughpower GF3 ATX 3.0 at performance
- Expensive still
- OCP at 5VSB
- Bulky ATX, EPS and PCIe cable
Recommended Intel Core I9-13900K Build With Corsair HX1200 PSU:
| Image | Product | Specs | Stores |
|---|---|---|---|
| Intel Core i9 13900K | Brand: Intel CPU Speed:5.80 GHz CPU Socket: LGA 1700 | Amazon $617.99 Newegg $598.99Walmart $599.99 |
 | Corsair iCUE H150i RGB Elite Liquid CPU AIO Cooler | Brand: Corsair Noise Level: 31 dB RPM:2200 RPM | Amazon $179.99Best Buy $179.99 |
 | ASUS Prime Z790-A WiFi 6E LGA 1700 Motherboard | Brand: ASUS Chipset: Z790 Powerstages: 16+1 Memory Speed:7000 MHz | Amazon $372.94Newegg $309.99Best Buy $309.99 |
 | PowerColor Red Devil AMD Radeon RX 6950 XT 16GB GPU | Brand: AMD Memory: 16GB Bit Rate: 256 bits Game Clock:2226 MHz | Amazon $978.99Newegg $1,028,99 |
 | Corsair Dominator Platinum RGB DDR5 64GB (2x32GB) 5200MHz | Brand : Corsair RAM Memory Technology: DDR5 Memory Speed: 5200 MHz | Amazon $179.99 Best Buy $309.99 |
| Samsung 980 PRO | Brand : SAMSUNG SSD Type : NVMe Capacity : 1 TB | Amazon $86.99Walmart $89.99Newegg $99.99 |
 | be quiet! Silent Base 802 Window Black, Mid-Tower ATX PC Case | Brand: Be-quiet Case Type: Mid Tower | Amazon $211.20Newegg $179.99 |
 | Corsair HX Series, HX1200, 1200 Watt 80+ PSU | Brand: Corsair Wattage:1200 PSU Type:Fully Modular | Amazon $265.89Newegg $263.98 |
| Corsair LL Series LL120 RGB 120mm Fans | Brand: EVGA Wattage:1000 Connector Type:ATX, PCI Express | Amazon $34.99Newegg $35.99Walmart $56.99 |
3. Corsair RMX Series (2021), RM1000x:
Corsair RMX Series (2021), RM1000x-PSU:
The third PSU I will recommend for the Intel core i9-13900K is this Corsair RMX Series (2021), RM1000x, there is no major difference between the aboveCorsair-HX1200 and Corsair RMX Series PSUs except the material and the wattage. In HX series PSUs corsair has focused on the wattage, not that much on the quality of the material. Corsair has brought up the 1200 watts of power into the latest HX 1200 PSU with great stability and extra long holdup time.
1000 Watts Of Power:
While in RMX Series PSUs corsair has focused on the quality of the material more than on bringing betterment in the wattage. Corsair RMx Series PSU’s material quality is solid and builds quality is extra good, along with these benefits you will get upto 1000Watts of power in these PSUs which allows you to use these PSUs with high-end GPUs like RTX 4090, and with the latest generation Intel core i9-13900K CPUs.
Efficiency:
Along with the good material quality of the RMX series, it is priced also very cheap and low while the HX series is expensive. The Corsair RMX series is also the best-performing Corsair PSU of 2021, the ranking is given because of its efficiency and power with stability.
This PSU will be a good budget option for a Build with expensive components like RTX 4090 or the latest AMD RX series GPUs paired with a CPU like Intel core i9-13900K.
Corsair RMX Series (2021), RM1000x-PSU
Brand: Corsair
Wattage: 1000 W
Cables: 16x SATA (4x cables), 8x 4-pin Molex (single cable)
The Pros:
- Full power at 47 Degree C
- Best performing Corsair PSU of 2021
- Cheap in price
- Silent PSU
- Fully compliant with ATX v2.52
- Valuable and efficient PSU
- Long hold-up time
- Low inrush current
- Magnetic Levitation fan
- All necessary cable are included
- Fully modular
- 10-year warranty
- Comes with PCI-E 6+2-Pin Cable for GPUs not supporting PCI 5.0
- PCI-E 5.0 Power Cable for GPUs like RTX 4090, providing upto 600W of power
- SATA and Molex Cables also included
The Cons:
- High OCP triggering points on the minor rails
- Efficiency could be better
- Small distance between peripheral connectors
Recommended Intel Core I9-13900K Build With Corsair RM1000x PSU:
| Image | Product | Specs | Stores |
|---|---|---|---|
| Intel Core i9 13900K | Brand: Intel CPU Speed:5.80 GHz CPU Socket: LGA 1700 | Amazon $617.99 Newegg $598.99Walmart $599.99 |
 | Lian Li GA-360A Galahad AIO 360 RGB White CPU Liquid AIO Cooler | Brand: Lian Li Noise Level: 20 dB RPM:1800 RPM | Amazon $149.90 Newegg $241.34 |
 | MSI PRO Z790-A WiFi ProSeries – LGA 1700 Motherboard | Brand: MSI Chipset: Z790 Powerstages: 16+1+1 Memory Speed:7200 MHz | Amazon $297.07Newegg $293.98 |
 | XFX Speedster MERC319 AMD Radeon RX 6800 XT CORE 16GB GPU | Brand: XFX Memory: 16GB Bit Rate: 256 bits Memory Clock: 1825 MHz | Amazon $641.04Newegg $1,998.00 |
 | TEAMGROUP T-Force Vulcan DDR5 Ram 32GB Kit (2x16GB) 5200MHz | Brand : TEAMGROUP RAM Memory Technology: DDR5 Memory Speed: 5200 MHz | Amazon $134.99Walmart $309.40 |
| Samsung 980 PRO | Brand : SAMSUNG SSD Type : NVMe Capacity : 1 TB | Amazon $86.99Walmart $89.99Newegg $99.99 |
 | Corsair 4000D Airflow Tempered Glass Mid-Tower ATX PC Case | Brand: Corsair Case Type: Mid Tower | Amazon $104.99Walmart $155.33 |
| Corsair RMX Series (2021), RM1000x | Brand: Corsair Wattage:1000 PSU Type:Fully Modular | Amazon $189.99Newegg $189.99 |
| Corsair LL Series LL120 RGB 120mm Fans | Brand: EVGA Wattage:1000 Connector Type:ATX, PCI Express | Amazon $34.99Newegg $35.99Walmart $56.99 |
Conclusion:
Here is the conclusion for this guide of best PSUs for Intel core i9-13900K, we reviewed the three best PSUs with your desired Intel 13th gen core i9 CPU. The first PSU we reviewed as the best overall for Intel i9 13900K is the Thermaltake G3 1250 Watts PSU which is the perfect PSU if are having or planning to buy a next-gen GPU like RTX 4090 so you can make use of the powerful and speedy PCI-e 5.0.
The second PSU we reviewed is Corsair HX1200 which is a perfect PSU for performance with efficiency and is capable of holding up a powerful build of Intel i9 13900K CPU with any next-gen GPU whether from Intel or AMD.
The third one is a budget PSU, which is a very efficient and powerful PSU with robust performance and a long hold-up time. All the above PSUs are very reliable and trustworthy, you can choose the one which satisfies your requirements.
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