As the world's most popular MOBA, League of Legends runs on a proprietary engine that has been updated for over a decade. Recently, Riot increased the minimum requirements to include AVX instruction support and dropped support for older OSs and DirectX 9. While still lightweight, modern team fights with complex particle effects can strain older integrated graphics. The game scales well with single-thread CPU performance, meaning even modern entry-level processors can deliver high frame rates.
Actual FPS may vary based on RAM speed, background processes, and other system factors
Performance Report
At 1080p, all quality settings exceed 450 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 362 FPS. At 4K, all settings exceed 247 FPS.
The GeForce RTX 4090 is 1277% above the recommended GPU (GeForce GTX 560) for League of Legends. The Ryzen 7 8840HS is 293% above the recommended CPU (Core i5-3330).
At lower resolutions (1080p low), the Ryzen 7 8840HS sets the FPS ceiling. As graphical load increases at (1080p (high/ultra), 1440p (high/ultra), 4k high), the GeForce RTX 4090 becomes the FPS-limiting side. The FPS ceiling is closely matched at 1080p medium, 1440p (low/medium), 4k (low/medium/ultra).
This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages.
At 1080p low, the Ryzen 7 8840HS sets the ceiling at about 629 FPS, while the GeForce RTX 4090 could reach 700 FPS. In this scenario, the CPU limits the GPU potential by 10% (FPS gap: 71 FPS). Overall distribution: CPU limits 1/12 cells, GPU limits 7/12, balanced 4/12.
The Ryzen 7 8840HS and GeForce RTX 4090 stay close in effective frame-generation ceiling across most presets, so neither side consistently suppresses the other by a large margin.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU Limits GPU 10% | Balanced | GPU Limits CPU 7% | GPU Limits CPU 10% |
| 1440p (2K QHD) | Balanced | GPU Limits CPU 6% | GPU Limits CPU 7% | GPU Limits CPU 7% |
| 4K (Ultra HD) | Balanced | Balanced | GPU Limits CPU 8% | GPU Limits CPU 6% |
We estimate the maximum FPS the processor can sustain and the maximum FPS the graphics card can sustain in each setting, then compare those limits directly.
Limit Factor formula: (stronger - weaker) / stronger. Example: if CPU ceiling is 200 FPS and GPU ceiling is 140 FPS, then GPU limits CPU by 30%.
CPU Limits GPU means the processor ceiling is lower. GPU Limits CPU means the graphics ceiling is lower. Balanced means the FPS ceilings are close enough that the gap is negligible.
A component can still be the FPS limiter without reaching 100% utilization. The displayed percentages are derived from FPS ceilings, not generic utilization heuristics.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU11% - 26% <> GPU24% - 36% <> | CPU17% - 39% <> GPU25% - 39% <> | CPU17% - 39% <> GPU25% - 39% <> | CPU15% - 35% <> GPU27% - 39% <> |
| 1440p (2K QHD) | CPU9% - 18% <> GPU35% - 48% <> | CPU15% - 31% <> GPU35% - 51% <> | CPU15% - 31% <> GPU35% - 51% <> | CPU14% - 26% <> GPU38% - 53% <> |
| 4K (Ultra HD) | CPU9% - 18% <> GPU62% - 62% | CPU14% - 30% <> GPU63% - 67% <> | CPU14% - 30% <> GPU63% - 67% <> | CPU13% - 25% <> GPU67% - 69% <> |
The Ryzen 7 8840HS + GeForce RTX 4090 pairing runs this title with CPU utilization between 9% and 39% and GPU utilization between 24% and 69%. Ryzen 7 8840HS keeps significant headroom across presets, while GeForce RTX 4090 is utilized efficiently without persistent saturation. As resolution scales, average GPU load rises from 32% at 1080p to 65% at 4K, while CPU averages move from 25% to 19%.
The utilization pattern is relatively even. The GeForce RTX 4090 reaches 68% average at its highest-load preset, while the Ryzen 7 8840HS peaks at 28% average. This suggests a fairly controlled load distribution, but the actual FPS-limiting side should still be read from the limiter analysis above.
At 1080p, averages sit around CPU 25% and GPU 32%. At 1440p, that shifts to CPU 20% and GPU 44%, and at 4K it reaches CPU 19% and GPU 65%. This shows that GPU demand scales sharply with resolution while CPU load remains comparatively stable.
4K (Ultra HD) Ultra is the most balanced preset based on this dataset. It runs around CPU 19% (13-25%) and GPU 68% (67-69%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while Ryzen 7 8840HS remains stable for consistent frame delivery.
Current utilization does not show an urgent upgrade requirement for either component; the Ryzen 7 8840HS and GeForce RTX 4090 remain reasonably matched for this title.
Understanding Hardware Utilization: These percentages represent how much of your component's maximum processing power is actively being used during gameplay. They describe hardware load, but they do not directly tell you which component sets the FPS ceiling.
Important: a CPU or GPU can still be the FPS limiter without reaching 100% utilization. Two processors can both show 40% usage and still deliver very different frame rates, depending on per-core speed, cache, engine threading, driver overhead, and frame preparation efficiency.
Data generated by our Machine Learning engine trained on real-world benchmarks. Shows the approximate average utilization at each setting.
See how your processor and graphics card compare against the game official minimum and recommended system specs. The placement of your hardware is calculated using relative synthetic performance scores to help you gauge overall playability.
Your CPU is 293% above and your GPU is 1277% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+293%vsrecommended
+1277%vsrecommended
+1099%vsminimum
+6755%vsminimum
Yes, the Ryzen 7 8840HS paired with the GeForce RTX 4090 can run League of Legends smoothly up to 4k achieving around 247 FPS at Ultra quality. Your GPU is 1277% above the recommended specs, and your CPU is 293% above the recommended requirements.
Price data is not currently available for this combination. In general, look for setups where the CPU and GPU are balanced — this ensures you're not overspending on one component that the other can't keep up with.
Your GeForce RTX 4090 is already a top-tier graphics card. While it's technically the limiting factor here (which means you are fully utilizing your GPU's visual horsepower exactly as intended), there is no meaningful upgrade path that would drastically improve your League of Legends performance right now. GPU fully utilized at: 1080p high, 1080p ultra, 1440p high, 1440p ultra, 4k high. CPU-limited at: 1080p low.
League of Legends does not currently support Frame Generation technologies like DLSS 3 or FSR 3. Your performance is based entirely on native rendering. If the game adds support in a future update, newer GPUs will benefit the most.
League of Legends requires at minimum a Core i3-530 (CPU) and GeForce 9600 GT (GPU) with 2 GB RAM and 16 GB storage. For the recommended experience, you need a Core i5-3330 and GeForce GTX 560 with 4 GB RAM. Your Ryzen 7 8840HS and GeForce RTX 4090 both exceed the recommended specs, so you're well-positioned for a great experience.
These League of Legends FPS results are not arbitrary numbers. They come from calculations informed by thousands of real gaming benchmarks, and the typical accuracy range is around 10% to 15%. That makes them far more useful than generic FPS calculators that simply invent values without a benchmark foundation. Actual in-game performance can still vary with drivers, updates, RAM configuration, cooling, and the exact scene being rendered.
Performance estimates are based on synthetic benchmarks and hardware capabilities.
Results may vary based on drivers, OS, and background processes.
