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 193 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 193 FPS. At 4K, all settings exceed 158 FPS.
The GeForce RTX 4090 is 1277% above the recommended GPU (GeForce GTX 560) for League of Legends. The Ryzen 5 1400 is 21% above the recommended CPU (Core i5-3330).
The Ryzen 5 1400 determines the performance ceiling at all 1080p settings, all 1440p settings, all 4k settings, while the GPU has headroom.
Approximated average price on current market:
Combo price: $1740. At 1080p Ultra, this combo delivers 193 FPS, equivalent to 0.11 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.111 fps/$ | 0.111 fps/$ | 0.111 fps/$ | 0.111 fps/$ |
| 1440p | 0.111 fps/$ | 0.111 fps/$ | 0.111 fps/$ | 0.111 fps/$ |
| 4k | 0.111 fps/$ | 0.111 fps/$ | 0.111 fps/$ | 0.091 fps/$ |
* Table values represent FPS per Dollar (higher is better)
At 1080p low, the Ryzen 5 1400 sets the ceiling at about 193 FPS, while the GeForce RTX 4090 could reach 669 FPS. In this scenario, the CPU limits the GPU potential by 71% (FPS gap: 476 FPS). Overall distribution: CPU limits 12/12 cells, GPU limits 0/12, balanced 0/12.
Your Ryzen 5 1400 is the limiting side in the heaviest mismatch. This means part of the GeForce RTX 4090 rendering potential remains unused in those settings.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU Limits GPU 71% | CPU Limits GPU 64% | CPU Limits GPU 56% | CPU Limits GPU 48% |
| 1440p (2K QHD) | CPU Limits GPU 61% | CPU Limits GPU 52% | CPU Limits GPU 42% | CPU Limits GPU 30% |
| 4K (Ultra HD) | CPU Limits GPU 45% | CPU Limits GPU 40% | CPU Limits GPU 24% | CPU Limits GPU 21% |
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.
The displayed percentages are derived from FPS ceilings, not generic utilization heuristics.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU80% - 90% <> GPU39% - 42% <> | CPU85% - 100% <> GPU42% - 44% <> | CPU85% - 100% <> GPU42% - 44% <> | CPU83% - 97% <> GPU44% - 44% |
| 1440p (2K QHD) | CPU80% - 89% <> GPU50% - 51% <> | CPU85% - 100% <> GPU52% - 54% <> | CPU85% - 100% <> GPU52% - 54% <> | CPU83% - 96% <> GPU53% - 57% <> |
| 4K (Ultra HD) | CPU80% - 89% <> GPU65% - 65% | CPU85% - 100% <> GPU67% - 70% <> | CPU85% - 100% <> GPU67% - 70% <> | CPU83% - 96% <> GPU69% - 73% <> |
The Ryzen 5 1400 + GeForce RTX 4090 pairing runs this title with CPU utilization between 80% and 100% and GPU utilization between 39% and 73%. Ryzen 5 1400 reaches high load in heavier scenarios, while GeForce RTX 4090 is utilized efficiently without persistent saturation. As resolution scales, average GPU load rises from 43% at 1080p to 68% at 4K, while CPU averages move from 90% to 90%.
This profile is CPU-bound. At 1080p (Full HD) Medium, the Ryzen 5 1400 reaches 92% average load (85-100%), while the GeForce RTX 4090 remains comparatively lower at 43% (42-44%), which points to CPU-side frame preparation limits.
At 1080p, averages sit around CPU 90% and GPU 43%. At 1440p, that shifts to CPU 90% and GPU 53%, and at 4K it reaches CPU 90% and GPU 68%. This shows that GPU demand scales sharply with resolution while CPU load remains comparatively stable.
4K (Ultra HD) Low is the most balanced preset based on this dataset. It runs around CPU 84% (80-89%) and GPU 65% (65-65%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while Ryzen 5 1400 remains stable for consistent frame delivery.
Upgrade priority should be the CPU. The Ryzen 5 1400 reaches 92% average load at 1080p (Full HD) Medium while the GeForce RTX 4090 remains comparatively underutilized, so a faster processor would improve frame-time consistency and top-end FPS.
Understanding Hardware Utilization & Bottlenecks: These percentages represent how much of your component's maximum processing power is actively being used during gameplay. This is the key to identifying performance bottlenecks in any system.
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 21% above and your GPU is 1277% above the recommended specs. High/Ultra at 1080p. Lower settings for higher resolutions.
+21%vsrecommended
+1277%vsrecommended
+268%vsminimum
+6755%vsminimum
Yes, the Ryzen 5 1400 paired with the GeForce RTX 4090 can run League of Legends smoothly up to 4k achieving around 158 FPS at Ultra quality. Your GPU is 1277% above the recommended specs, and your CPU is 21% above the recommended requirements.
This CPU + GPU combo costs approximately $1740 ($91 CPU + $1649 GPU (Rank #77 Value)). Since the CPU is the main limiting factor, investing in a stronger processor will improve your framerates and overall value. For example, the Ryzen 9 9950X is a great upgrade option for around $649 (Rank #5 for value).
For League of Legends, upgrading the CPU would have the biggest impact on performance. The Ryzen 5 1400 is currently the limiting factor — the GeForce RTX 4090 has extra headroom that a faster processor could take advantage of. This is especially noticeable at 1080p where CPU performance matters more. CPU-limited at: 1080p low, 1080p medium, 1080p high, 1080p ultra, 1440p low, 1440p medium, 1440p high, 1440p ultra, 4k low, 4k medium, 4k high, 4k ultra.
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 5 1400 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.
