Expensive GPUs are also “useless” without these 4 important upgrades

In a gaming PC, the graphics card (GPU) is always the soul that makes everything more attractive. The GPU largely determines the fps level, and if it’s weak, you’ll have to fight frame drops instead of the enemy.

But GPU isn’t everything. Investing the entire budget just to get a “huge” GPU is sometimes counterproductive. You should aim for a harmonious configuration to achieve the best performance, instead of just having a powerful GPU and other components being neglected.

GPU is important, but you don’t need to buy the biggest one

When building the current machine, the author’s initial goal was just a mid-range card. Finally got the RTX 4080 Super right when it launched in 2024, even though I had previously planned to get the RTX 4070. Looking back, the RTX 4070 was enough — and many people are in the same situation.

The reason is that frame generation technology has made choosing a GPU much easier. Nvidia has DLSS with image enhancement and additional frame creation using AI, helping to increase fps significantly. AMD also has FSR, but FSR 4 is still slower to gain popularity. Despite the controversy over “fake frames,” both DLSS and FSR deliver realistic results when implemented in the right game. However, not all games support it, so buyers need to research first.

If you choose a mid-range GPU, the extra budget can be spent on other, more important components below.

RAM needs to be sufficient and redundant

The days of using 16GB of RAM for gaming are over. Games like Microsoft Flight Simulator or Cyberpunk 2077 “eat up” RAM extremely strongly. If you play games while opening other applications, or play mod games like Minecraft or The Sims, RAM consumption is even higher.

When RAM is not enough, Windows will be forced to use virtual memory (pagefile) on the hard drive. Transferring data to SSD/HDD to compensate for RAM will cause the speed to drop dramatically, leading to constant stuttering, lag, and freezing. No matter how good the GPU is, it can’t be saved.

In a context where RAM is quite expensive, sometimes you should spend less on GPU to invest in more RAM.

A good screen is more important than you think

A powerful GPU that comes with a screen that is only 1080p 60Hz is extremely wasteful. A low screen will become a bottleneck, causing all the fps the GPU produces to not be displayed.

The opposite case is equally tragic: a 4K screen with a GPU that can only handle 1080p will give you a constant lag experience. It’s important that the GPU and screen are matched.

The upgrade from 60Hz to 144Hz makes a very clear difference, but from 144Hz to 240Hz there is not much of a breakthrough. Therefore, choosing a screen that is good enough will give you optimal performance without spending too much money.

Don’t forget the power supply (PSU) and heatsink

GPUs today consume a lot of electricity. Weak power will lead to instability, automatic shutdown or unexpected crash. A good power supply not only helps the system operate stably but is also easy to upgrade later.

Residual capacity is also an important part of “future-proofing”. If you buy a PSU with high certification (like Gold), the performance is better, heats less and runs quieter.

In addition, temperature is also a factor you cannot ignore. A powerful GPU releases a lot of heat into the case. You need good cooling fans and reasonable airflow to keep CPU, GPU and overall system temperatures stable.

Check if you need to upgrade the CPU

At low resolutions like 1080p, the CPU is often the limiting factor because the GPU can render too fast. But at 1440p or 4K, the burden shifts back to the GPU, making the CPU less likely to be a bottleneck.

The problem is not choosing the most powerful CPU, but choosing the right CPU for your GPU and the type of game you play. eSports games are often CPU heavy, played at low resolution, so a strong CPU will be effective.

Having a strong GPU is great, but if the rest of the machine is weak then that power is wasted. Building a PC is a matter of balance, and sometimes you don’t need to go overboard with the configuration.

In this time of strong frame creation technology, you don’t necessarily have to buy an overkill GPU. The only thing to avoid is GPUs with only 8GB of VRAM, as they will become outdated faster. If playing AAA games, 12GB is the minimum, 16GB is ideal.

Be realistic with your own needs. Some people buy a powerful GPU and then spend 600 hours playing a game that runs smoothly on a 10 year old PC. If you don’t require the highest settings, invest in a balanced rig. The GPU can be upgraded later, but the stability of the entire system is the most important thing.