Fortnite serves as a showcase for Unreal Engine 5. In 'Performance Mode', it runs on almost anything. However, enabling 'Lumen' (global illumination) and 'Nanite' (virtualized geometry) requires a powerful RTX 30/40 series GPU to maintain 60 FPS. The building mechanics also add a significant CPU load, especially in competitive end-games with dense player structures.
Actual FPS may vary based on RAM speed, background processes, and other system factors
Performance Report
At 1080p, all quality settings exceed 153 FPS, suitable for 144Hz+ monitors. At 1440p, all settings exceed 107 FPS. At 4K, all settings exceed 67 FPS.
The GeForce RTX 4090 is 136% above the recommended GPU (GeForce GTX 1080) for Fortnite. The Core i9-11900KF is 87% above the recommended CPU (Core i5-7300U).
The Core i9-11900KF determines the performance ceiling at all 1080p settings, all 1440p settings, 4k (low/high/ultra), while the GPU has headroom. The system is well balanced at 4k medium.
Approximated average price on current market:
Combo price: $1998. At 1080p Ultra, this combo delivers 153 FPS, equivalent to 0.08 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.241 fps/$ | 0.186 fps/$ | 0.098 fps/$ | 0.077 fps/$ |
| 1440p | 0.139 fps/$ | 0.106 fps/$ | 0.079 fps/$ | 0.054 fps/$ |
| 4k | 0.080 fps/$ | 0.057 fps/$ | 0.051 fps/$ | 0.034 fps/$ |
* Table values represent FPS per Dollar (higher is better)
At 1440p ultra, the Core i9-11900KF sets the ceiling at about 110 FPS, while the GeForce RTX 4090 could reach 138 FPS. In this scenario, the CPU limits the GPU potential by 20% (FPS gap: 28 FPS). Overall distribution: CPU limits 11/12 cells, GPU limits 0/12, balanced 1/12.
Your Core i9-11900KF 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 16% | CPU Limits GPU 6% | CPU Limits GPU 10% | CPU Limits GPU 19% |
| 1440p (2K QHD) | CPU Limits GPU 18% | CPU Limits GPU 7% | CPU Limits GPU 10% | CPU Limits GPU 20% |
| 4K (Ultra HD) | CPU Limits GPU 14% | Balanced | CPU Limits GPU 9% | CPU Limits GPU 13% |
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) | CPU60% - 87% <> GPU29% - 55% <> | CPU50% - 79% <> GPU60% - 74% <> | CPU24% - 56% <> GPU64% - 96% <> | CPU20% - 54% <> GPU65% - 96% <> |
| 1440p (2K QHD) | CPU56% - 70% <> GPU36% - 65% <> | CPU44% - 65% <> GPU76% - 90% <> | CPU20% - 53% <> GPU96% - 100% <> | CPU17% - 55% <> GPU94% - 100% <> |
| 4K (Ultra HD) | CPU57% - 71% <> GPU38% - 64% <> | CPU46% - 65% <> GPU76% - 92% <> | CPU24% - 48% <> GPU98% - 100% <> | CPU20% - 50% <> GPU96% - 100% <> |
The Core i9-11900KF + GeForce RTX 4090 pairing runs this title with CPU utilization between 17% and 87% and GPU utilization between 29% and 100%. Core i9-11900KF stays in a controlled operating range, while GeForce RTX 4090 becomes the primary limiter at high visual load. As resolution scales, average GPU load rises from 67% at 1080p to 83% at 4K, while CPU averages move from 54% to 48%.
This profile is GPU-bound. At 4K (Ultra HD) High, the GeForce RTX 4090 averages 99% usage (98-100%), while the Core i9-11900KF stays at 36% (24-48%), indicating the graphics pipeline is the limiting stage.
At 1080p, averages sit around CPU 54% and GPU 67%. At 1440p, that shifts to CPU 47% and GPU 82%, and at 4K it reaches CPU 48% and GPU 83%. This shows that GPU demand scales sharply with resolution while CPU load remains comparatively stable.
4K (Ultra HD) Medium is the most balanced preset based on this dataset. It runs around CPU 56% (46-65%) and GPU 84% (76-92%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while Core i9-11900KF remains stable for consistent frame delivery.
Current utilization does not show an urgent upgrade requirement for either component; the Core i9-11900KF 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 87% above and your GPU is 136% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+87%vsrecommended
+136%vsrecommended
+284%vsminimum
+521%vsminimum
Yes, the Core i9-11900KF paired with the GeForce RTX 4090 can run Fortnite smoothly up to 4k achieving around 67 FPS at Ultra quality. Your GPU is 136% above the recommended specs, and your CPU is 87% above the recommended requirements.
This CPU + GPU combo costs approximately $1998 ($349 CPU (Rank #279 Value) + $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 Fortnite, upgrading the CPU would have the biggest impact on performance. The Core i9-11900KF 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 high, 4k ultra.
Fortnite 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.
Fortnite requires at minimum a Core i3-3225 (CPU) and GeForce GTX 960 (GPU) with 8 GB RAM and 30 GB storage. For the recommended experience, you need a Core i5-7300U and GeForce GTX 1080 with 16 GB RAM. Your Core i9-11900KF and GeForce RTX 4090 both exceed the recommended specs, so you're well-positioned for a great experience.
These Fortnite 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.
