Best Gaming PC Build Under $400 for 2023

Are you working with a tight budget, but still need something that will work for 1080P gaming? This affordable $400 gaming PC build will get the job done for you.

Best $400 Gaming PC Build
If you’re in the market for a new gaming computer and you’re working with a tight budget, one way to get more performance out of the money you have to spend is to build your computer yourself. In fact, in this guide, we’ll show you what parts to get in order to build a solid gaming PC for under $400.

This build is perfect as an entry-level system and it will handle pretty much any game on an affordable 1080P monitor, including games like Valorant, Roblox, Minecraft, Apex Legends, and Fortnite.

No, it’s not the best gaming computer in the world. But, if you are currently using a system that can’t even run your favorite games, this build will at least allow you to start playing those games. And, it will give you a nice foundation so that you can easily upgrade it in the future.

So, if you’re ready to see what the best gaming PC build under $400 looks like, keep reading!

If you want to check out more affordable build templates at various prices ranges, check out more builds on our Affordable Gaming PC Builds guide.

Part List for $400 PC Build

Intel Core i3-12100F GIGABYTE H610M S2H V2 XFX Radeon RX 580 GTS XXX Thermaltake Versa H18
CPU Intel Core i3-12100F


MOBO Gigabyte H610M




RAM Patriot Viper 8GB




CASE Thermaltake Versa H18




Grand Total: $370-$430



*Component prices fluctuate daily. Click ‘Price on Amazon’ to see the most-up-to-date price.

**Price includes the parts that make up the tower only. You’ll need an operating system and Windows costs ~$125 for an activation key. However, you can still install Windows for free and it will work indefinitely without activating it with no problems—there will just be a watermark at the bottom left of your desktop asking you to activate it.

Next Option: $500 Gaming PC Build »

$400 PC Build Overview

This system is a little different than our $300 gaming computer build because instead of going with an AMD Ryzen APU, we instead opted for a quad-core Intel Core i3-12100F processor and a dedicated RX 580 graphics cards.

And, while you could go with an AMD Ryzen 5 3400G APU for this build, we felt going with an i3-12100F and RX 580 would offer you a better and quicker upgrade path in the future, as well as provide more performance now.

RX 580

While the RX 580 in this build is well over five years old, it is still a very capable 1080P graphics card. With 8GB of VRAM, the 580 has held up very well over the years. It can still run any game out there, and will max out non-demanding titles with no problem.

For more demanding titles, you’ll need to turn the settings down a bit. But, that is to be expected for an entry-level gaming PC.

Other Components

As for the other components in this build, this system also comes with 8GB of Patriot Viper’s 3200MHz DDR4 memory, a budget-friendly ADATA 240GB SSD, and an MSI 550W 80-PLUS GOLD-rated power supply.

The 55W power supply is perfect for this build, because it will allow you to upgrade to a mid-range GPU down the road. Options like an RTX 3060, RX 6650 XT, or RX 7600 will work as upgrade options.

And, finally, we chose the Thermaltake Versa H18 for this build’s case. It’s a very affordable micro-ATX chassis that offers good airflow and plenty of room. It also sports a tempered glass side panel and full-length PSU shroud, which are two features that will improve the aesthetics of your system..

*NOTE: If you’re not up for building your own computer, click the “Shop Pre-Builts” button in the section above to see a similarly priced pre-built gaming computer.

12100F + RX 580 Benchmark

AMD RX 580 + Intel i3 12100F Benchmarks (4 Games Tested)

Build FAQ

Ultimately, in our opinion, the parts above are what will help you build the best gaming PC for under $400 (make sure you check for fluctuating prices, though.) However, there are other routes you can go with this build.

So, below we’ll discuss what some of those other routes are, as well as what kind of performance you can expect out of this $400 gaming PC, and the types of upgrades you can make to it to turn it into a powerful 1080P gaming machine.

1. How Do I Build This PC?

You will need to assemble all of the individual components you have purchased into a working PC. Fortunately, this process is not difficult! And, it’s a lot of fun. If you’ve never built a PC before, use our Step-by-Step PC building guide to walk you through the process.

How to Build A Gaming PC: Step-by-Step

2. How Will This Build Perform?

In terms of how this $400 gaming PC will hold up against today’s top games, you can expect to be able to run less-demanding games on a 1080P monitor on higher settings, and more demanding games on a 1080P monitor at lower settings. But, for an example of what kind of a framerate you can expect to get out of some of today’s more popular games, you can watch the benchmark video above, or check out the bullet point list below:

  • This build will be able to run games like Rocket League, League of Legends, Minecraft, Roblox, etc. on higher settings at ~100+ frames per second
  • This build will be able to run more demanding AAA titles on lower settings at ~60+ frames per second

For just under $400, that’s pretty darn good performance. You’ll be able to play any game on a 1080P monitor. Yes, on more demanding games you’ll have to turn the settings down, but at least you’ll get to play them. And, for popular eSports/competitive titles that aren’t very demanding, the CPU/GPU combination will be able to handle them with ease.

3. How You Can Cut the Price Further

While this build is pretty barebones as is, you could potentially cut the cost down a bit more. Here are a couple of ways you can save even more money on this system in order to lower the price:

  • You could choose a cheaper case and save ~$10. There are cases out there (like the Cooler Master MasterBox Q300L) that cost just under $40 that will hold this system fine.
  • You could opt for a cheaper power supply and save ~$20. If you drop to too low-end of a power supply, though, it will hurt your ability to upgrade the system in the future. And, you need to make sure you don’t choose a cheap knock-off unit, as it could cause harm to your system.
  • You could save a small amount of money if you opted for an HDD over an SSD. But, we’d strongly recommend that you stuck with an SSD.
  • Check out our $300 build for a cheaper (but less powerful) option.

And, that’s really about it.

You could always shop for used components to cut down on costs. And, at this low of a budget it wouldn’t be a horrible idea to consider going the used route.

Typically we recommend that you choose new components for your system, as they will come with a warranty to protect your purchase. However, with such a low budget, it is tough build a brand new system that will offer an ideal in-game experience. There’s obviously more risk in purchasing used components, but you can build a more powerful system for the same price if you’re willing to take the risk.

However, if you want a brand new system, those list of options above would probably be the best way to get the price down a little bit more.

4. Why Does Windows Cost So Much?

One way or another, you’re going to need an operating system to get this build up and running. If you buy a copy of Windows along with this build, that’s going to set you back an extra $125—which, for some of you, will put this build out of reach.

However, there are a few ways around paying $125 for Windows 11:

Also Read: How to Install Windows 11 Without a Microsoft Account

First, you could install a free Linux-based operating system. You won’t be able to play certain games that aren’t compatible with Linux, but you will save $125.

Second, you could buy a Windows 11 key from a third party marketplace for ~$30. I’ve had good success purchasing Windows keys from or in the past, but there is definitely some risk involved in purchasing a Windows license from a third party source.

Finally, you could just install Windows 11 for free and not activate it. In my opinion, this is probably the best route to go. Essentially, Microsoft allows anyone to install Windows onto their computer without forcing them to activate it. And, for the most part, you can still use Windows normally even when it’s not activated. The only thing you will lose out on is some customization options like setting your desktop’s wallpaper. But, I think in order to save $125, that is not a bad trade-off cost. And, at the very least, you could run the non-activated version of Windows until you can afford to purchase an activation key for it.

5. How to Upgrade This Build

While this $400 gaming computer won’t max out today’s top games on a 1080P monitor, it will give you the potential to upgrade it to be a system that can max out those games. In my opinion, this system is only one major upgrade away from being able to max out most games on a 1920 x 1080 monitor, and a couple of more upgrades after that away from being a really solid all-around computer.

Here is the upgrade path I would take for this system:

The first upgrade that I’d make would be to add a solid mid-range (or higher) graphics card.

The following GPUs would make for a good upgrade:

  • NVIDIA RTX 2060
  • AMD RX 6600
  • NVIDIA RTX 3060
  • Intel Arc A750
  • AMD RX 6600 XT
  • AMD RX 6650 XT
  • AMD RX 7600

Fortunately, the power supply in this build will be powerful enough to accommodate any of the graphics cards listed above. If it were me, I’d try to save up for one of the options listed above, because for 1080P gaming, those will allow you to max out any game with ease.

You could also upgrade to a high-end graphics card as well (like an RX 7700 XT, RX 7800 XT, RTX 4060 Ti, RTX 4070, or RTX 4070 Ti)—but that would also require upgrading the PSU as well.

Compare: RTX 4070 vs RTX 4070 Ti: Which GPU Should You Get?

After you upgrade the graphics card, you can also consider upgrading your monitor as well. Depending on what graphics card you upgrade to, you could also opt for a higher refresh rate monitor or a higher resolution monitor. For an NVIDIA card, an affordable G-Sync monitor with a 144Hz refresh rate would be worth looking into—especially if you play competitive-driven titles like Rocket League, PUBG, COD, Apex Legends, etc.

For an AMD graphics card upgrade (RX 7600 or 6650 XT, etc.), you’ll want to opt for a FreeSync monitor.

Also Read: G-Sync vs FreeSync: Which Adaptive Sync Tech is Better?

The second and third upgrades I’d make would be to add another SSD and another 8GB stick of RAM.

This system doesn’t come with a lot of storage space off the bat. Fortunately, it’s fairly easy to add more storage space (moving the operating system is a bit more challenging, though) into a system.

Your system’s memory will also be simple to upgrade. Because this build starts out with a single 8GB stick of RAM, it gives you the opportunity to bump up to 16GB of RAM pretty easily.

If we opted for a dual-channel 2x4GB kit to start out with, you’d have to completely replace that kit with a 2x8GB kit in order to reach 16GB of RAM. So, with one 8GB stick of RAM already in there, bumping up to 16GB of RAM will be as simple as adding a second stick of memory (just make sure it’s the same stick that you already have, in this case, an 8GB stick of Patriot Viper II 3200MHz.)

The fourth upgrade I’d make would be to upgrade this system’s processor.

Since the Intel Core i3-12100F is a decent processor, you can hold off on upgrading it for a little while. However, once you’ve upgraded the components listed above, you can also look to get a higher-end processor.

The motherboard that comes in this $400 gaming computer will accommodate the following processor upgrades:

  • Intel Core i5-12400
  • Intel Core i7-12700

I think your best option for an upgrade here is the Intel Core i7-12700. The i5-12400 won’t provide that significant of an upgrade over the i3-12100F, whereas the i7-12700 will give you a more noticeable performance increase (both in gaming and CPU-intensive tasks.)

Conclusion: $400 Will Get You A Nice Entry-Level PC for 1080P Gaming

If you’re looking for the best gaming PC under $400, you’ll definitely want to consider building your own system rather than buying a pre-built computer. By opting to build the computer yourself, you can avoid the markup cost that comes on pre-built machines, which will allow you to put more money into your system.

In this guide, we’ve given you a solid list of components that will allow you to build an entry-level $400 gaming PC. This build is capable of running pretty much any game (like Fortnite, Apex Legends, Call of Duty, Valorant, etc.) on a 1080P monitor on at least lower settings. And, you’ll be able to play less-demanding games on medium or higher settings, too.

Get Help With Your Build: If you need help putting together a part list for your build? Fill out the form below or ask your questions in the comment section!

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Hey, I’m Brent. I’ve been building PCs and writing about building PCs for a long time. Through, I've helped thousands of people learn how to build their own computers. I’m an avid gamer and tech enthusiast, too. On YouTube, I build PCs, review laptops, components, and peripherals, and hold giveaways.

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34 thoughts on “Best Gaming PC Build Under $400 for 2023”

  1. The GPU linked isn’t available on Amazon anymore, and the other versions of the same GPU I’ve been able to find have pushed this build well past the price range, so hopefully this guide will be updated soon.

  2. The GPU that you suggest is no longer sold on amazon, can you suggest another GPU for us please? (For the same price)

  3. i wanna run rocket league with $400 k? could u make another one, my snap is yt_skrubbplayzz if u make it send me the link.

  4. I’ve been searing for weeks for a pre-built but I think the way to go is building my own. I’m trying to find one for my birthday in march but I don’t want to get a piece of crap could you tell me if this build will run farm simulator 19?

  5. Hi Brent,
    Helping my 14 yr old son build this computer. The 8118 Gigabyte Gaming LAN…does that mean we dont need an ethernet card? Sorry we are stumbling through this together. He plans to plug it directly into our router.
    Thanks for any help.

  6. Hi Brent,
    I’m using a Dell Inspiron laptop at the moment and I have found that it just is not up to playing the new Microsoft flight sim.
    I would like to build my own computer to handle this and would be grateful if you can advise me on the build.
    Your $400 build looks very interesting for a first timer, with the upgrade advise too.

  7. Do you have a video on how to put this all together I am new to all of this I’m switching over from console so I don’t really know what I’m doing it’s my first time building a PC so I need a little help lol

    • yes, but the price difference probably is not worth it seeing that you remove the ability to upgrade in the future… so basically you would be stuck at what is a little better than “potato” and would have to buy a 600w just to begin upgrading.

  8. Hey I’m new to this whole technology gig and I hear building a PC is way cheaper that buying. But my question is could I use these parts but a different case (preferably a Razer case of some kind) would that work or is that a no? I’m making this for my son and he said he wants the case to match his keyboard, mouse ect. for his “setup”

  9. Thanks for the articles, very informative and a great help.

    Just a quick question around the MOBO, there see. To be several variants, which would you suggest?


  10. can this take mods for games like fallout new Vegas and stuff like or will I have to play the game as is.

  11. Would this set up be able to play Warframe at max setting on a 1080 monitor for the foreseeable future?

    And how does one discover this information. I cannot seem to find any solid info. My DuckDuckGo fu is clearly lacking.

    Thanks in advance.

  12. Where are the instructions on how to build it. I just recieved my entry level build i ordered for $400 but no instructions on how to put it together.