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 102 FPS. At 1440p, all settings exceed 71 FPS. At 4K, frame rates range from 50 to 106 FPS.
The GeForce RTX 4090 is 136% above the recommended GPU (GeForce GTX 1080) for Fortnite. The Core i5-10400F is 1% below recommended, but 103% above minimum.
The Core i5-10400F sets the FPS ceiling at all 1080p settings, all 1440p settings, all 4k settings, while the GeForce RTX 4090 still has headroom.
Approximated average price on current market:
Combo price: $1751. At 1080p Ultra, this combo delivers 102 FPS, equivalent to 0.06 FPS per dollar.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p | 0.179 fps/$ | 0.135 fps/$ | 0.086 fps/$ | 0.058 fps/$ |
| 1440p | 0.089 fps/$ | 0.073 fps/$ | 0.056 fps/$ | 0.041 fps/$ |
| 4k | 0.061 fps/$ | 0.048 fps/$ | 0.041 fps/$ | 0.029 fps/$ |
* Table values represent FPS per Dollar (higher is better)
This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages.
At 1440p low, the Core i5-10400F sets the ceiling at about 155 FPS, while the GeForce RTX 4090 could reach 334 FPS. In this scenario, the CPU limits the GPU potential by 54% (FPS gap: 179 FPS). Overall distribution: CPU limits 12/12 cells, GPU limits 0/12, balanced 0/12.
Your Core i5-10400F 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 43% | CPU Limits GPU 37% | CPU Limits GPU 31% | CPU Limits GPU 46% |
| 1440p (2K QHD) | CPU Limits GPU 54% | CPU Limits GPU 43% | CPU Limits GPU 43% | CPU Limits GPU 47% |
| 4K (Ultra HD) | CPU Limits GPU 43% | CPU Limits GPU 30% | CPU Limits GPU 35% | CPU Limits GPU 34% |
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) | CPU82% - 99% <> GPU32% - 55% <> | CPU76% - 92% <> GPU64% - 76% <> | CPU43% - 68% <> GPU64% - 96% <> | CPU38% - 67% <> GPU64% - 95% <> |
| 1440p (2K QHD) | CPU80% - 94% <> GPU40% - 65% <> | CPU71% - 88% <> GPU77% - 94% <> | CPU41% - 67% <> GPU94% - 99% <> | CPU37% - 66% <> GPU93% - 99% <> |
| 4K (Ultra HD) | CPU81% - 94% <> GPU43% - 65% <> | CPU74% - 88% <> GPU77% - 99% <> | CPU42% - 64% <> GPU100% - 100% | CPU39% - 63% <> GPU98% - 100% <> |
The Core i5-10400F + GeForce RTX 4090 pairing runs this title with CPU utilization between 37% and 99% and GPU utilization between 32% and 100%. Core i5-10400F reaches high load in heavier scenarios, while GeForce RTX 4090 carries most of the graphics load at heavier visual settings. As resolution scales, average GPU load rises from 69% at 1080p to 85% at 4K, while CPU averages move from 71% to 68%.
From a utilization perspective, this is a GPU-heavy load profile. At 4K (Ultra HD) High, the GeForce RTX 4090 averages 100% usage (100-100%), while the Core i5-10400F stays at 53% (42-64%). This shows the graphics pipeline is carrying most of the workload, but utilization alone does not define the FPS limiter.
At 1080p, averages sit around CPU 71% and GPU 69%. At 1440p, that shifts to CPU 68% and GPU 83%, and at 4K it reaches CPU 68% and GPU 85%. This shows that GPU demand scales sharply with resolution while CPU load remains comparatively stable.
1080p (Full HD) High is the most balanced preset based on this dataset. It runs around CPU 56% (43-68%) and GPU 80% (64-96%), which keeps GeForce RTX 4090 well utilized without constant max-out behavior while Core i5-10400F remains stable for consistent frame delivery.
Both components are stressed near their limits in the heaviest presets (Core i5-10400F: 90% avg, GeForce RTX 4090: 100% avg). A targeted upgrade should follow your target resolution: GPU first for higher image quality, CPU first for higher minimum FPS.
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 1% below recommended and your GPU is 136% below recommended, but both meet minimum specs. Playable at Low/Medium settings, 1080p or below.
-1%vsrecommended
+136%vsrecommended
+103%vsminimum
+521%vsminimum
Yes, the Core i5-10400F paired with the GeForce RTX 4090 can run Fortnite smoothly up to 1440p achieving around 71 FPS at Ultra quality. Your GPU is 136% above the recommended specs, and your CPU is 1% below the recommended requirements.
This CPU + GPU combo costs approximately $1751 ($102 CPU (Rank #107 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 i5-10400F 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.
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 setup meets the minimum requirements but falls short of the recommended specs. You may need to lower some settings for smooth performance.
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.
