Is 500W PSU Enough?

Is 500W PSU Enough?

The power supply (PSU) is responsible for supplying current to all the parts. Parts like GPU, CPU, motherboard needs a PSU that can give constant and higher wattage power. But how much exactly wattage do you need and based on the power requirements, do you have to change the PSU, let’s discuss in this post: 

Is 500W PSU Enough? A 500W power supply (PSU) is enough for PCs which doesn’t have a high-end GPU or runs on APU, basically budget PCs. So, 500W is enough for GPUs like GTX 1660,1660 super with a mid-range CPU. But, the latest PCs that come with powerful CPU and GPU do need PSU with higher wattage, at least 700W-800W.

Basically, if you are building the latest mid-range or high-end PC or your PC is not that old, in this case, you most likely to have a PSU with more wattage than 500W. Actually, 500W PSU is the bare minimum at this point of time in PCs.

Now, let’s discuss some of the specific cases where mostly users ask how much PSU wattage they need:

Is 500 Watt PSU Enough For Gaming? A 500W PSU in gaming PCs specifically in the latest PCs with high-end GPUs is not enough at all. With GPUs like RTX 3070, 3080 a PSU of 800W is minimum. Otherwise, for budget gaming PCs that don’t have a dedicated GPU (runs on APU), 500W PSU can be enough in this case.

The GPU is the most power-consuming part of the PC, and that’s why I have created this list so that you can decide that PSU according to the GPU:

GPU NameMinimum PSU Needed
GeForce RTX 3070650W
GeForce RTX 3080750W
GeForce RTX 3090750W
Radeon RX 6800 XT650W
GeForce RTX 3060 Ti600W
Radeon RX 6700 XT650W
Radeon RX 5700600W
GeForce GTX 1660 Super450W
GeForce GTX 1660430W
Radeon RX 5500 XT450W
Some of the most popular GPUs and their minimum PSU requirements

As we know gaming PCs mostly have stronger CPUs and GPU, which are the most power-consuming parts of the whole PC, that’s why gaming PCs often need a PSU that can give higher wattage than normal PCs.

Otherwise, if you don’t have a high-power consuming GPU, use your PC for other tasks like editing, designing, writing, in this case, 500W can be enough.

Also, you can easily check the PSU requirement of the parts while buying, it will give you a rough idea of how much PSU wattage your PC is gonna need. Also, keep in mind to go with the highest from all the parts need.

For example, AMD Ryzen 9 5950X which is a monster CPU needs 105W power in normal conditions on the other hand Nvidia RTX 3080 (which is also a high-end GPU) need 320W so it needs at least 750W power supply if you want to run this GPU (as the PSU also has to supply power to other parts).

So, try to go with a slightly higher power supply than the GPU demands. Now, you might get confused about the GPU need only 320W, then why go as high as 750W.

Well, the answer is simple, the GPU alone needs 320W, but the PSU also has to supply power to CPU, RAM, motherboard, etc, so the whole PC does need a higher wattage PSU.

Also, you can easily find on the manufacturer’s sites, how much wattage a PSU should have to run all the PC including the GPU. So, don’t worry about it.

Till now I have discussed the 500W PSU specifically, but let’s also have a look at what will happen if the PSU can’t keep up with the system:

Also Read:

Does Computer Power Supply (PSU) Matter?
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What Does Happen If The PSU Is Too weak?

If the PSU is weak (wattage is lower than the PC needs) then the user has to face two main errors: PC not booting or suddenly turns off when its load increases and a huge dip in performance. Note that, if the PC somehow turns on with a low wattage PSU, still it can’t give enough performance as all the parts are not getting their sufficient powers in this case.

Also, with a weak PSU, it is also not possible to overclock the PC. As for overclocking a specific part like CPU or GPU the user has to insert more power, so in the absence of enough power, when a PC is overclocked, it is simply gonna turned off.

That’s why if you are going to overclock your PC, it is recommended to actually choose a PSU that is more than enough (slightly overkill) for the GPU. So that all the parts can give enough power when you overclock the PC later.

These are the common errors that a PC can show because of a weak PSU, so pick one carefully that is really capable to deliver power to your whole PC.

Now, let’s have a look at how a 500W PSU will do with different GPUs, is it going to be enough?

A 500W PSU In Different GPUs:

Is 500 Watt Power Supply Enough For GTX 1660?

Nvidia recommends a minimum 450W PSU with GTX 1660 graphics card, so a 500W PSU will be enough in normal conditions. However, in case of overclocking, and if the user has lots of RGB components with a power-hungry CPU, 500W PSU might get a bit short.

Is 500w PSU enough For RTX 3060?

A 500W PSU isn’t enough for the RTX 3060 GPU, so if anyone uses it with such a less wattage GPU, the PC can throw errors like shutdown suddenly along with less performance which the overall PC is capable of. With RTX 3060, a minimum 550W PSU is necessary.

If the PC runs with 3060 runs on a 500W PSU somehow, it simply can’t survive overclocking or when you do any task that puts load on the PSU.

Is 500w PSU Enough For RTX 3070?

RTX 3070 needs at least a 650W PSU, so using 500W PSU is definitely not going to even boot up the system in most cases. Although the minimum PSU 650W, with RTX 3070, a 750W PSU is recommended if you overclock your parts or have RGB lighting in them.

Is 500W PSU Enough For RTX 2070?

Nvidia GeForce RTX 2070 needs at least 650W PSU, so a PC with this GPU can’t be run with a 500W PSU. So, a 650W PSU is recommended, and if you do overclock, at least 750W PSU is necessary with it.

Also Read:

All The Cables You Need For Your PC
Do You Need Case Fans For PC?

Wrapping up:

In this post, I have discussed 500W PSUs, are they enough for the latest PCs, and which GPUs can be run with 500W PSUs. If you have any more questions left feel free to contact me. See you in the next one, be techy:)

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