When building a small form factor (SFF) PC or using a device with integrated graphics, you're likely working with weaker GPU performance than what's available in more advanced discrete graphics cards. It's probably that the RTX 5090 won't fit inside your SFF case, nor would it make much sense, which is why technologies such as DLSS, FSR, and XeSS are so crucial for getting the most out of the available hardware. SFF cases have some limitations compared to other form factors, but here are a few reasons why these upscaling technologies are vital for gaming.

5 The most powerful GPU isn't required

Flagships don't make sense

Do you honestly need an Nvidia GeForce RTX 5090? No, you don't. Not unless you plan to use an 8K monitor. An SFF PC only requires a mid-range GPU at best, especially one with the latest upscaling support from the big three. You could easily get away with an RTX 5070 Ti, RX 9070 XT, or B580 and enjoy butter-smooth gaming experiences without too much headroom. The performance of these GPUs is excellent for gaming with the latest titles and RT conservatively configured.

Whacking everything to 11 will cause strain on the GPU and the rest of the compact PC, but that's where upscaling comes into play. Taking advantage of frame generation, upscaling, and other magic tricks offered by AMD, Intel, and Nvidia will allow you to get more out of the GPU and in essence, more out of your PC.

4 Saves money and power

Go with a cheaper GPU

Graphics cards are horrifically expensive, even at MSRP. Thankfully, AMD has brought pricing down slightly, but it's only Intel who managed to launch some GPUs at reasonable prices. The flagship Nvidia GPU costs $2,000. Sure, it's a flagship product and should command an inflated price to warrant the performance, but that's the same price as two fully built mid-range gaming PCs. Do you need this inside your PC? Not at all, which is why you can save considerable money on a GPU for your SFF PC.

Because you're limited by space and cooling, your choice of graphics card is more important than a mid-tower chassis, restricting what you can install. Power draw can also be a consideration, especially with lower-capacity PSUs and SFX units.

3 Less heat generated

Not much waste heat to deal with

Smaller and less powerful parts won't produce as much waste heat when running under load, at least compared to more pricey and power-hungry parts. With an SFF build, you're looking to get as much performance per watt and dollar as possible, which opens up choices in the low to mid-range for PC parts. Cooling and thermal capacity are weaker with smaller chassis since they often have fewer fan mounting locations and don't support larger AIO liquid cooler radiators.

2 Smaller dimensions to work with

More compact GPUs with less power

One of the most obvious shortcomings of smaller PC cases is dimensions. These chassis are simply smaller than their larger counterparts. You'll often see Mini-ITX or MicroATX as the largest motherboard form factors allowed. The same goes for GPUs with many limiting how much space is available for the graphics card to take up. Though you can locate more compact GPUs with decent specs and cooling, it's important to ensure they will fit inside the case.

Even weaker (and smaller) GPUs can come rocking upscaling and frame-gen support.

1 You won't notice the difference

It almost looks native

The best part with upscaling technologies, especially the most recent versions, is the inability to tell the difference between native and upscaled gaming. Firing up Cyberpunk 2077 with DLSS 4 or FSR and you'll be hard-pressed to tell if the feature is enabled or not. These systems have been refined to the point where the performance gains don't impact visual fidelity or latency as heavily as before. We'll likely continue seeing improvements as architectures and drivers mature.

And playing at lower resolutions won't require upscaling to achieve decent results without sending temperatures into the stratosphere. So long as you reign in expectations, gaming with an SFF PC can be an enjoyable experience with little cause for concern. But it's good to know such technologies are available for those times you do wish to push the boundaries and try some 4K gaming inside a small compact box.

Upscaling could also hurt games

However, it's not all good news for Nvidia's DLSS, AMD's FSR, and Intel's XeSS. Because developers can leverage these features on the GPU, it means they can cut corners on optimizing the game as upscaling should help out with frame rates, even if the game is poorly optimized. This will be most noticeable on hardware without these features, or if they're turned off altogether. It's also bad news for gamers since AMD, Intel, and Nvidia could work more on improving the machine learning and algorithms over raw rasterization performance.

There's no questioning the usefulness of upscaling technology, especially for 4K gaming where ray tracing and other intensive features can push GPUs to their limits. SFF systems can also benefit from all the advantages listed here to create the ultimate compact gaming PC.