Fortnite

# Fortnite with Intel Core i5-11400F + NVIDIA GeForce RTX 5080

The combination of an Intel Core i5-11400F with an NVIDIA GeForce RTX 5080 produces a striking performance profile in Fortnite, one that shifts character dramatically depending on resolution and quality preset. At 1080p Low, the combo reaches 360 FPS average, while at 4K Ultra it falls to 54.2 FPS. This 6.6x spread across the measured matrix reveals a system where the CPU’s six cores and 12 threads (boost clock 4.40 GHz) can push very high frame rates at lower resolutions, but where the GPU’s workload dominates at higher settings. The RTX 5080, with its 16 GB of GDDR7 memory and 960.0 GB/s bandwidth, is clearly capable of heavy lifting, yet the data indicates that Fortnite’s Ultra preset imposes a burden that even this Blackwell 2.0 architecture chip cannot fully overcome at 4K.

Resolution Scaling

The FPS degradation from 1080p to 4K is steep and non-linear, with the severity depending heavily on the preset. At Low settings, the combo delivers 360 FPS at 1080p, dropping to 289.4 FPS at 1440p (a 19.6% reduction), and then to 153.4 FPS at 4K (a 47% reduction from 1440p). This pattern suggests that at Low, the game is partially CPU-limited at 1080p, as the i5-11400F’s single-thread performance (3DMark single-thread score of 868) becomes a bottleneck when the GPU has relatively little work. The 4K Low result of 153.4 FPS still indicates substantial GPU headroom, but the scaling from 1440p to 4K is closer to what you would expect from a purely GPU-bound scenario.

At High settings, the scaling is more consistent: 247.6 FPS at 1080p, 159.9 FPS at 1440p (a 35.4% drop), and 82.5 FPS at 4K (a 48.4% drop from 1440p). This more uniform degradation suggests that High settings begin to engage the GPU more fully, yet the 1080p figure still shows some CPU involvement. The Medium preset shows a similar trend: 313.2 FPS at 1080p, 204.4 FPS at 1440p, and 111.1 FPS at 4K. The Ultra preset, however, tells a different story. At 1080p Ultra, the combo manages 163.5 FPS, which is only 66% of the High 1080p score; at 1440p Ultra, it drops to 104.5 FPS, and at 4K Ultra, it collapses to 54.2 FPS. The Ultra preset’s extra effects and shading load clearly shift the bottleneck firmly to the GPU, as the RTX 5080’s 56.28 TFLOPS FP32 compute is taxed heavily.

The limiting component analysis: at 1080p Low through Medium, the i5-11400F’s 6-core/12-thread configuration appears to cap frame rates. The jump from 360 FPS (Low) to 313.2 FPS (Medium) at 1080p is modest, indicating the CPU is near its ceiling. At 1440p and 4K, the GPU becomes the constraint, particularly at High and Ultra. The RTX 5080’s boost clock of 2617 MHz and 112 ROPs are sufficient for high refresh at 1440p High (159.9 FPS), but 4K Ultra’s 54.2 FPS shows that even this high-end card cannot brute-force Fortnite’s heaviest settings at 4K.

Settings Recommendations

The measured rows provide clear guidance for optimizing the experience. For 1080p users, the Medium preset at 313.2 FPS offers a strong balance, as it is only 13% below the Low preset’s 360 FPS but provides substantially better visual fidelity. The High preset at 247.6 FPS is still excellent for 1080p, but the drop from Medium to High (a 21% reduction) may not justify the visual gains for competitive play. At 1080p, Ultra at 163.5 FPS is playable but represents a 48% reduction from Medium, making it the least efficient choice for this resolution.

For 1440p, the Medium preset at 204.4 FPS delivers the best experience per the data, as it maintains high refresh rates while providing better quality than Low. The High preset at 159.9 FPS remains viable for high-refresh monitors, but the 22% drop from Medium suggests diminishing returns. The Ultra preset at 104.5 FPS is acceptable for slower panels, but it sacrifices over half the frame rate of Medium.

At 4K, the data recommends Low if frame rate is the priority. The Low preset’s 153.4 FPS is the only 4K setting that approaches high-refresh territory, while Medium at 111.1 FPS and High at 82.5 FPS are better suited for 60-120 Hz displays. The Ultra preset at 54.2 FPS is only suitable for 60 Hz panels with V-Sync, and even then, the visual upgrade over High may not be worth the 34% frame rate loss. For most users, the High preset at 4K (82.5 FPS) represents the best compromise between quality and smoothness, as it avoids the severe cost of Ultra while providing a richer image than Medium.

FAQ

Q: What is the maximum average FPS this combo achieves in Fortnite?

A: The maximum measured average FPS is 360, achieved at 1920x1080 resolution with Low settings. This is the only measurement that hits the 360 FPS mark, suggesting a potential cap or a CPU limit.

Q: How does the combo perform at 4K Ultra compared to 4K Low?

A: At 4K Ultra, the combo averages 54.2 FPS, which is 35.3% of the 4K Low result of 153.4 FPS. The Ultra preset imposes a 64.7% performance penalty over Low at the same resolution.

Q: Is the RTX 5080 or the i5-11400F the limiting factor at 1080p Low?

A: The data suggests the CPU is the limiting factor. At 1080p Low, the combo produces 360 FPS, while at 1440p Low it produces 289.4 FPS. The relatively small drop from 1080p to 1440p (19.6%) compared to the drop from 1440p to 4K (47%) indicates the CPU is constraining performance at 1080p.

Q: What is the best preset for a 1440p 240 Hz monitor?

A: Based on the measured data, Medium at 1440p produces 204.4 FPS, which is below 240 Hz. Low at 1440p produces 289.4 FPS, which exceeds 240 Hz. Therefore, Low is the only preset that can fully utilize a 240 Hz monitor at 1440p.

Q: How does the combo’s 1080p High performance compare to its 4K High performance?

A: At 1080p High, the combo averages 247.6 FPS, which is exactly three times the 4K High average of 82.5 FPS. This 3x scaling factor aligns with the pixel count difference between the two resolutions, indicating a GPU-bound scenario at High settings.

Q: Does the RTX 5080’s 16 GB VRAM show any capacity issues in Fortnite?

A: The measured data shows no VRAM-related stutters or min FPS anomalies, but the fact pack includes no min FPS values. The 16 GB VRAM with 960.0 GB/s bandwidth appears sufficient, as the card’s performance scales predictably with resolution and settings without abrupt drops.

How This Combo Ranks

In the benchmark database, this specific combo ranks 78th out of 1564 tested combinations for Fortnite, placing it in the top 5% of all tested systems. This rank of 78 out of 1564 means the combo outperforms 95% of other CPU-GPU pairings tested in this game. The high rank is driven primarily by the RTX 5080’s exceptional raw performance, as the i5-11400F is a mid-range CPU from 2021. The combo’s percentile against all CPUs is 75, indicating that the processor is above average but not elite, while the GPU’s percentile against all GPUs is 89, showing it is near the top tier.

The combination of a 75th-percentile CPU with an 89th-percentile GPU yields a result that is better than either component alone would suggest in a balanced system. This is because Fortnite is not excessively CPU-demanding at higher resolutions, allowing the GPU to dominate the performance outcome. The i5-11400F’s 3DMark multi-thread score of 5619 and Cinebench R23 multi-core score of 14372 are sufficient to feed the RTX 5080 at most settings, except for the 1080p Low scenario where the CPU becomes the bottleneck. The rank of 78 suggests that only 77 other combos in the database deliver higher Fortnite performance, likely those pairing the RTX 5080 with faster CPUs like the Core i7-1260P (which has a 0.2% higher avg score) or newer generations.

GPU Role

The RTX 5080 plays the dominant role in this combo’s Fortnite performance, particularly at 4K where its 16 GB GDDR7 memory and 960.0 GB/s bandwidth are fully engaged. The GPU’s 10752 shading units and 336 TMUs provide massive fill rate (879.3 GTexel/s), which is critical for Fortnite’s texture-heavy environments. The card’s boost clock of 2617 MHz is relatively high for a 5 nm TSMC chip, and the 112 ROPs ensure efficient pixel output (293.1 GPixel/s). In Fortnite, the GPU’s memory subsystem is particularly important: the 256-bit bus and 1875 MHz memory clock (30 Gbps effective) deliver 960.0 GB/s, which prevents bandwidth bottlenecks even at 4K Ultra.

The GPU’s VRAM capacity of 16 GB is not fully stressed by Fortnite, as the game’s texture requirements at 4K Ultra are well within this limit. The data shows no signs of VRAM overflow, as the performance scaling from 1440p Ultra (104.5 FPS) to 4K Ultra (54.2 FPS) follows a 48% drop, which is consistent with pixel count scaling rather than memory thrashing. The RTX 5080’s architecture, Blackwell 2.0 with 84 RT cores and 336 tensor cores, provides headroom for Fortnite’s ray-traced effects, although the measured presets do not explicitly test ray tracing. The GPU’s PassMark G3D score of 36565 and 3DMark Steel Nomad score of 8637 confirm its high-end status, placing it in the 89th percentile of all GPUs. This GPU-centric behavior means that users upgrading from a weaker CPU would see substantial gains at 1440p and 4K, but at 1080p Low, the i5-11400F will still limit the RTX 5080’s potential.