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 408 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 300 FPS. At 4K, all settings exceed 183 FPS.
The GeForce RTX 4090 is 1277% above the recommended GPU (GeForce GTX 560) for League of Legends. The EPYC 7D12 is 560% above the recommended CPU (Core i5-3330).
The EPYC 7D12 determines the performance ceiling at all 1440p settings, 4k (medium/high/ultra), while the GPU has headroom. The system is well balanced at all 1080p settings, 4k low.
Approximated average price on current market:
Combo price: $1749. At 1080p Ultra, this combo delivers 408 FPS, equivalent to 0.23 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.400 fps/$ | 0.343 fps/$ | 0.279 fps/$ | 0.233 fps/$ |
| 1440p | 0.326 fps/$ | 0.259 fps/$ | 0.205 fps/$ | 0.172 fps/$ |
| 4k | 0.248 fps/$ | 0.192 fps/$ | 0.136 fps/$ | 0.105 fps/$ |
* Table values represent FPS per Dollar (higher is better)
At 4k high, the EPYC 7D12 sets the ceiling at about 238 FPS, while the GeForce RTX 4090 could reach 306 FPS. In this scenario, the CPU limits the GPU potential by 22% (FPS gap: 68 FPS). Overall distribution: CPU limits 8/12 cells, GPU limits 0/12, balanced 4/12.
Your EPYC 7D12 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) | Balanced | Balanced | Balanced | Balanced |
| 1440p (2K QHD) | CPU Limits GPU 13% | CPU Limits GPU 13% | CPU Limits GPU 17% | CPU Limits GPU 13% |
| 4K (Ultra HD) | CPU Limits GPU 6% | CPU Limits GPU 13% | CPU Limits GPU 22% | 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) | CPU38% - 80% <> GPU25% - 28% <> | CPU50% - 84% <> GPU28% - 29% <> | CPU50% - 84% <> GPU28% - 29% <> | CPU45% - 83% <> GPU30% - 30% |
| 1440p (2K QHD) | CPU39% - 80% <> GPU33% - 36% <> | CPU51% - 84% <> GPU37% - 38% <> | CPU51% - 84% <> GPU37% - 38% <> | CPU46% - 83% <> GPU39% - 40% <> |
| 4K (Ultra HD) | CPU37% - 80% <> GPU58% - 59% <> | CPU48% - 84% <> GPU59% - 63% <> | CPU48% - 84% <> GPU59% - 63% <> | CPU43% - 83% <> GPU60% - 66% <> |
The EPYC 7D12 + GeForce RTX 4090 pairing runs this title with CPU utilization between 37% and 84% and GPU utilization between 25% and 66%. EPYC 7D12 stays in a controlled operating range, while GeForce RTX 4090 is utilized efficiently without persistent saturation. As resolution scales, average GPU load rises from 28% at 1080p to 61% at 4K, while CPU averages move from 64% to 63%.
The utilization pattern is relatively balanced. The GeForce RTX 4090 reaches 63% average at its highest-load preset, while the EPYC 7D12 peaks at 68% average, with no single component consistently acting as a hard bottleneck.
At 1080p, averages sit around CPU 64% and GPU 28%. At 1440p, that shifts to CPU 65% and GPU 38%, and at 4K it reaches CPU 63% and GPU 61%. 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 63% (43-83%) and GPU 63% (60-66%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while EPYC 7D12 remains stable for consistent frame delivery.
Current utilization does not show an urgent upgrade requirement for either component; the EPYC 7D12 and GeForce RTX 4090 remain reasonably matched for this title.
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 560% above and your GPU is 1277% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+560%vsrecommended
+1277%vsrecommended
+1915%vsminimum
+6755%vsminimum
Yes, the EPYC 7D12 paired with the GeForce RTX 4090 can run League of Legends smoothly up to 4k achieving around 183 FPS at Ultra quality. Your GPU is 1277% above the recommended specs, and your CPU is 560% above the recommended requirements.
This CPU + GPU combo costs approximately $1749 ($100 CPU (Rank #250 Value) + $1649 GPU (Rank #77 Value)). Your EPYC 7D12 provides phenomenal top-tier performance but at a premium enthusiast price. Since you are essentially at the ceiling of current hardware capabilities, there are no meaningful performance upgrades available. However, if you wanted a more cost-effective build that still delivers a great experience, you could theoretically step down to a high-end processor with a significantly better value rating. For example, the EPYC 4585PX is a great upgrade option for around $699 (Rank #66 for value).
Your EPYC 7D12 is already an incredibly powerful processor. While it's technically the first component to hit its limit (which is completely normal in state-of-the-art builds), there is no meaningful upgrade path that would drastically improve your League of Legends performance right now. CPU fully utilized at: 1440p low, 1440p medium, 1440p high, 1440p ultra, 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 EPYC 7D12 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.
