Why Your Gaming Laptop's CPU Matters More Than You Think
When buying a gaming laptop, it's easy to focus on the graphics card. However, our recent testing shows that the CPU can make a significant difference, especially when using upscaling or playing competitive esports titles.
We tested laptops with NVIDIA RTX 5060 and RTX 5090 GPUs, pairing them with CPUs of varying performance levels. The results highlight an important lesson: you need to match your CPU and GPU to your gaming needs, rather than simply buying the most powerful graphics card you can afford.
Here are the key takeaways:
- Upscaling can shift more of the workload onto your CPU by lowering the game's base render resolution.
- Midrange GPUs, such as the RTX 5060, generally don't need an extremely powerful CPU for graphically intensive games.
- High-end GPUs, such as the RTX 5090, can be held back by an underpowered CPU.
- Competitive esports games benefit significantly from a powerful CPU, even when paired with a midrange GPU.
- Thin and light gaming laptops may not benefit from pairing their limited cooling systems with the highest-tier GPUs.
Why Upscaling Changes CPU Requirements
Gaming laptop displays often create a challenge for buyers. Many modern laptops come with high-resolution panels, such as 2560 x 1600, but may pair them with midrange graphics cards like the RTX 5060.
While these displays look sharp, running demanding games at their native resolution can put considerable pressure on the GPU. This is where upscaling becomes useful.
You generally have three options when a laptop's GPU struggles with its native display resolution:
Choose a laptop with a lower-resolution display, such as 1920 x 1200.
Run the game at a lower resolution and stretch the image to fit the screen.
Use upscaling technology to render the game at a lower base resolution and reconstruct the image at a higher output resolution.
The first option can result in less crisp text and interface elements. The second can introduce jagged edges and image distortion because the rendered pixels don't map cleanly to the display.
Upscaling is usually the more appealing solution. Technologies such as NVIDIA DLSS use machine learning to reconstruct the image, while also allowing elements like the HUD to be rendered at the display's native resolution. This helps maintain image quality while improving performance.
However, there's an important trade-off that many buyers may not consider: lowering the base render resolution can increase the CPU's share of the workload.
How Upscaling Affects CPU and GPU Power
At a higher resolution, games tend to become more GPU-bound because the graphics card has more pixels to render. At lower resolutions, the workload can shift toward the CPU.
This matters because upscaling reduces the game's base render resolution before reconstructing the final image.
For example, on a laptop with a 2560 x 1600 display, DLSS Performance mode renders the game at 1280 x 800. That is significantly lower than 1080p.
The GPU now has fewer pixels to process, but the CPU may need to work harder to keep producing additional frames.
What Our Cyberpunk 2077 Testing Showed
We tested several laptops with RTX 5060 graphics cards and 2560 x 1600 displays while running Cyberpunk 2077 on Ultra settings.
As we increased the upscaling performance settings, the base render resolution decreased. We observed two important changes:
- CPU power consumption increased: The processor used more power to produce the additional frames.
- GPU power consumption decreased: The graphics card had fewer pixels to render, reducing its workload.
This demonstrates why a laptop that appears to be GPU-bound at its native resolution may become more CPU-dependent when using upscaling.
The display's resolution alone doesn't tell you how much CPU performance you need. Your rendering settings also play an important role.
Are Midrange CPUs Enough for Midrange GPUs?
For most buyers, midrange GPUs offer a practical balance of performance and price. We tested several RTX 5060 laptops in Marvel Rivals using high settings and different upscaling modes.
The laptops featured CPUs with substantial differences in theoretical processing power. One processor, the 290 HX Plus, was significantly more powerful than the HX 470 in CPU-only benchmarks.
However, the gaming results told a different story.
Across the Marvel Rivals tests, the laptops delivered very similar gaming performance despite the substantial difference in CPU power.
This suggests that spending considerably more money on a higher-end CPU may not provide a meaningful improvement when paired with a midrange GPU in visually intensive games.
For buyers choosing an RTX 5060 laptop, a CPU equivalent to an Intel H-series processor or Ryzen 9 470, as classified in our website's performance categories, should generally provide sufficient performance for this type of gaming.
The key is to avoid paying for CPU performance that your GPU and gaming workload cannot effectively utilize.
A more expensive CPU isn't automatically a better purchase if it doesn't translate into higher gaming performance.
What Happens When You Pair a High-End GPU With a Weak CPU?
The situation changes when you move to a high-end GPU.
We tested three laptops equipped with NVIDIA RTX 5090 graphics cards in Marvel Rivals, using the same settings and upscaling modes.
The Legion Pro 7i and Aorus Master 16, both equipped with powerful CPUs, were able to increase their frame rates as we lowered the base render resolution.
The Razer Blade 16, however, behaved differently.
When the CPU Becomes the Bottleneck
The Blade 16 featured a Core Ultra Series 3 H processor. Even after lowering the base render resolution, it was unable to exceed approximately 100 frames per second in our test.
This is a clear example of how an underpowered CPU can prevent a high-end GPU from reaching its full potential.
Lowering the resolution reduces the GPU's workload, but if the CPU doesn't have enough performance headroom to process additional frames, FPS may stop increasing.
It's also important to consider that the Legion Pro 7i and Aorus Master 16 are thicker laptops with more capable cooling systems. Their designs allow the components to receive more power while managing heat effectively.
That means the performance difference cannot be attributed to the CPU alone. Laptop cooling and power limits also play a role.
Nevertheless, our testing indicates that the Blade 16's CPU was holding back its RTX 5090 in this scenario.
If you're purchasing a laptop with a very powerful GPU, make sure its CPU is capable of keeping up.
Why CPUs Matter Even More in Esports Games
If you primarily play games such as Counter-Strike 2 or League of Legends, the CPU becomes even more important.
Unlike visually demanding games running at high settings, competitive esports titles are often played at low settings to maximize frame rates. This can reduce the workload on the GPU and place greater emphasis on CPU performance.
We tested CS2 at low settings across three RTX 5090 laptops and two RTX 5060 laptops.
An RTX 5060 Laptop Can Beat an RTX 5090 Laptop
One of the most interesting results came from the Lenovo Legion 7i, equipped with an RTX 5060.
It outperformed the Razer Blade 16 with an RTX 5090 in our CS2 testing.
The Legion 7i uses the same powerful Intel HX Plus processor as the Legion Pro 7i, while the Blade 16 has a lower-tier CPU. This difference in processor performance was enough for the laptop with the weaker GPU to deliver higher frame rates.
The Aorus Master 16, equipped with AMD's most powerful X3D CPU, led the testing.
These results highlight why a powerful graphics card isn't always the most important component for esports gaming. When the GPU has sufficient performance, the CPU can become the limiting factor.
Lowering Resolution Doesn't Always Increase FPS
Our testing also showed that reducing the base render resolution only increases frame rates when the CPU has enough performance headroom.
The Aorus Master 16 with its AMD X3D processor and the Legion 7i with its HX Plus CPU demonstrated this behavior.
If your processor is already struggling to produce frames, reducing the GPU's workload won't necessarily help.
For competitive gamers, a powerful CPU can therefore be a more meaningful investment than upgrading to a higher-tier GPU.
How to Choose the Right CPU and GPU Combination
The best CPU and GPU combination depends on the games you play, the laptop's design, and how much performance you actually need.
Rather than focusing on individual component specifications, consider how the two work together.
For Graphically Intensive Games With a Midrange GPU
If you're purchasing a laptop with an RTX 5060 or RTX 5070 and primarily playing visually demanding games, you generally don't need to spend a substantial premium on the most powerful CPU available.
Based on our testing, a CPU around the level of an Intel H-series processor or Ryzen 9 470, which we classify as Good performing on our website, should be sufficient for these workloads.
This can help you allocate more of your budget toward other features, such as a better display, additional memory, or improved build quality.
For High-End GPUs
If you're buying a laptop with an RTX 5090 or another high-performance GPU, pairing it with a similarly powerful CPU is important.
A weak CPU can prevent you from taking advantage of the GPU's capabilities, especially when using upscaling or playing games at lower resolutions.
We classify suitable high-end CPU and GPU combinations as Max performance on bestlaptop.deals, making it easier to find configurations that are designed to work well together.
For Thin and Light Gaming Laptops
Thin and light gaming laptops have different performance considerations.
Devices such as the Razer Blade 16 and ASUS Zephyrus G16 prioritize portability and compact designs. Their cooling systems and power limits can differ substantially from those of thicker gaming laptops.
For these devices, pairing a very high-end GPU with the chassis may not always make sense for typical users.
Based on our findings, an RTX 5070 Ti may be a more appropriate pairing for certain thin and light configurations, as it can better align with the power limits and CPU performance of these laptops.
The right choice depends on your specific requirements. Some buyers may have a particular need for a high-end GPU or additional VRAM, even in a compact laptop.
Conclusion: Match Your CPU to Your Gaming Needs
Our testing shows that CPU performance matters more than many gaming laptop buyers realize.
For graphically intensive games, a midrange CPU can be sufficient when paired with a midrange GPU. Spending more on the processor doesn't necessarily result in higher FPS.
However, high-end GPUs need capable CPUs to prevent bottlenecks, particularly when using upscaling or lowering render resolution.
For traditional esports titles, CPU performance becomes even more important. Our CS2 testing showed that a laptop with an RTX 5060 and a powerful CPU could outperform an RTX 5090 laptop with a weaker processor.
The most important takeaway is to choose a balanced configuration that matches your gaming preferences and the laptop's design.
If you're shopping for a gaming laptop, consider the CPU and GPU together rather than evaluating either component in isolation. Our performance classifications on bestlaptop.deals can help you identify configurations that align with your intended use.
We will continue testing gaming laptops to explore how different hardware combinations affect real-world performance, including upcoming comparisons between the RTX 5070 with 8GB and 12GB of VRAM.
