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, frame rates range from 16 to 91 FPS depending on quality settings. At 1440p, frame rates range from 9 to 42 FPS. At 4K, frame rates range from 4 to 18 FPS.
The GeForce RTX 4090 is 136% above the recommended GPU (GeForce GTX 1080) for Fortnite. The Core Ultra 5 235H is 127% above the recommended CPU (Core i5-7300U).
At lower resolutions (1080p low), the Core Ultra 5 235H sets the FPS ceiling. As graphical load increases at (1080p (medium/high/ultra), 1440p (medium/high/ultra), all 4k settings), the GeForce RTX 4090 becomes the FPS-limiting side. The FPS ceiling is closely matched at 1440p low.
This section is based on estimated CPU/GPU FPS ceilings, not utilization percentages.
At 4k ultra, the GeForce RTX 4090 sets the ceiling at about 5 FPS, while the Core Ultra 5 235H has headroom up to 35 FPS. In this scenario, the GPU limits the CPU potential by 86% (FPS gap: 30 FPS). Overall distribution: GPU limits 10/12 cells, CPU limits 1/12, balanced 1/12.
Your GeForce RTX 4090 is the limiting side in the heaviest mismatch. This means part of the Core Ultra 5 235H frame-generation potential remains unused in those settings.
| Resolution | Low | Medium | High | Ultra |
|---|---|---|---|---|
| 1080p (Full HD) | CPU Limits GPU 14% | GPU Limits CPU 38% | GPU Limits CPU 48% | GPU Limits CPU 64% |
| 1440p (2K QHD) | Balanced | GPU Limits CPU 53% | GPU Limits CPU 64% | GPU Limits CPU 72% |
| 4K (Ultra HD) | GPU Limits CPU 45% | GPU Limits CPU 73% | GPU Limits CPU 80% | GPU Limits CPU 86% |
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.
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 127% above and your GPU is 136% above the recommended specs. Ultra settings at 1080p, or High at 1440p/4K.
+127%vsrecommended
+136%vsrecommended
+365%vsminimum
+521%vsminimum
The Core Ultra 5 235H and GeForce RTX 4090 will struggle to run Fortnite at smooth framerates. At 1080p Ultra, you can expect around 16 FPS which is classified as "struggling". Consider lowering settings or upgrading your hardware.
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 Fortnite performance right now. GPU fully utilized at: 1080p medium, 1080p high, 1080p ultra, 1440p medium, 1440p high, 1440p ultra, 4k low, 4k medium, 4k high, 4k ultra. CPU-limited at: 1080p low.
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 Ultra 5 235H 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.
