Fortnite

Fortnite, Epic Games’ 2017 Battle Royale, remains one of the most widely played titles for benchmarking modern hardware. The combination of the Intel Core Ultra 7 155H and NVIDIA GeForce RTX 4080 presents a particularly interesting case because it pairs a high-end mobile GPU with a Meteor Lake processor designed for thin-and-light laptops. The measured FPS data reveals a system that is heavily GPU-bound at higher resolutions but shows signs of CPU limitation at 1080p, making it a nuanced dataset for analysis.

Resolution Scaling

The transition from 1920x1080 to 3840x2160 produces a dramatic and predictable decline in frame rates, but the magnitude of that drop varies significantly depending on the quality preset. At Low settings, the average FPS falls from 310 at 1080p to 197 at 1440p and then to 104 at 4K. This represents a 36% reduction when moving from 1080p to 1440p, followed by a 47% reduction when moving from 1440p to 4K. The absolute delta of 206 FPS between the lowest and highest resolutions at Low settings is the largest of any preset, which indicates that the GPU is the primary scaling factor here, but the CPU is still feeding it enough data to maintain very high frame rates.

At High settings, the scaling pattern is more linear in relative terms. The average FPS drops from 169 at 1080p to 108 at 1440p (a 36% decrease) and then to 57 at 4K (a 47% decrease from 1440p). The consistency of these percentage drops across Low and High settings suggests that the game’s rendering workload at these presets scales predictably with pixel count. However, the absolute numbers tell a different story: at 4K High, the system produces only 57 FPS, which is below the 60 FPS threshold many users consider the minimum for smooth gameplay. This indicates that the RTX 4080, despite its high-end positioning, is being pushed to its limits by Fortnite’s visual features at 4K.

Medium settings show the most balanced scaling curve, with averages of 218 FPS at 1080p, 139 FPS at 1440p, and 73 FPS at 4K. The step from 1440p to 4K here is a 47% reduction, matching the pattern seen in other presets. Ultra settings, meanwhile, produce the lowest frame rates across the board, with 112 FPS at 1080p, 71 FPS at 1440p, and just 38 FPS at 4K. The 4K Ultra result is particularly telling: it is the only measured configuration that falls below 40 FPS, and the 74 FPS difference between 1080p and 4K at Ultra is the smallest absolute drop of any preset. This suggests that at Ultra, the GPU is so heavily loaded that even the substantial CPU headroom available from the Core Ultra 7 155H cannot compensate, and the system becomes almost entirely render-bound.

The data shows that 1440p is the resolution where this combo delivers the most usable performance across all settings, with every preset except Ultra exceeding 100 FPS. At 4K, only Low and Medium settings remain viable for competitive play, while High and Ultra dip into console-like territory. The scaling behavior indicates that Fortnite’s engine is well-optimized for resolution scaling, but the RTX 4080’s 16 GB of VRAM and 716.8 GB/s bandwidth are not sufficient to maintain high frame rates at 4K with maximum visual fidelity.

GPU Role

The NVIDIA GeForce RTX 4080 is the dominant component in this system, and its specifications directly explain the performance patterns observed. With 16 GB of GDDR6X memory on a 256-bit bus, the GPU has ample capacity for Fortnite’s textures and geometry at any resolution, but the bandwidth of 716.8 GB/s becomes a limiting factor at 4K. The GPU’s boost clock of 2505 MHz and base clock of 2205 MHz allow it to sustain high throughput, yet the measured FPS at 4K Ultra (38 FPS) versus 1080p Ultra (112 FPS) demonstrates that raw compute power alone cannot overcome the pixel throughput demands.

The GPU’s architecture, Ada Lovelace, includes 76 ray tracing cores and 304 tensor cores, which are relevant to Fortnite’s newer rendering features. However, the measured data shows that enabling higher settings, which likely activate these features, has a severe impact on frame rates. The delta between Low and Ultra at 4K is 66 FPS (104 vs 38), and at 1440p it is 126 FPS (197 vs 71). This performance cliff suggests that the RTX 4080’s RT and tensor cores are not being fully utilized at lower presets, but at Ultra they introduce significant overhead without providing a proportional visual benefit.

The GPU’s PassMark G3D score of 34457 places it in the 86th percentile of all GPUs, with its nearest rival being the RTX 4080 SUPER at a 0.1% higher average score. This close competition highlights that the RTX 4080 is a top-tier part, yet Fortnite’s 4K Ultra results show it struggling. The pixel rate of 280.6 GPixel/s and texture rate of 761.5 GTexel/s are theoretically sufficient for high-resolution rendering, but the measured 38 FPS at 4K Ultra indicates that the game’s shading complexity and memory access patterns are more demanding than raw throughput numbers suggest.

The VRAM usage pattern is not directly measured, but the fact that 16 GB is available and frame rates do not collapse entirely at 4K suggests that memory capacity is not the bottleneck. Instead, the 22.4 Gbps effective memory speed and 256-bit bus width appear to be the limiting factors at higher resolutions. The GPU’s performance at 1080p Low (310 FPS) versus 4K Low (104 FPS) shows a 66% reduction, which correlates closely with the 4x increase in pixel count, indicating that memory bandwidth scaling is near-linear for this workload.

Settings Recommendations

Based on the measured FPS data, the optimal settings configuration depends heavily on the target resolution and the user’s performance priorities. At 1920x1080, all four presets produce playable frame rates, with Low achieving 310 FPS, Medium at 218 FPS, High at 169 FPS, and Ultra at 112 FPS. For competitive play, Low is the obvious choice, as the 310 FPS average provides maximum responsiveness and the lowest input latency. For a balance of visuals and performance, Medium offers 218 FPS, which is still well above the refresh rate of most high-end monitors.

At 2560x1440, the recommendations shift. Low produces 197 FPS, which is excellent for competitive play, while Medium delivers 139 FPS, which is smooth on 144Hz displays. High at 108 FPS is borderline for 144Hz panels but perfectly acceptable for 60Hz or 120Hz displays. Ultra at 71 FPS is the only preset that dips below 100 FPS, but it is still playable for casual gamers who prioritize visual quality over frame rate.

At 3840x2160, the choices become more constrained. Low delivers 104 FPS, which is the only preset that clears the 100 FPS threshold at 4K. Medium produces 73 FPS, which is smooth on 60Hz displays but not ideal for higher refresh rates. High at 57 FPS and Ultra at 38 FPS are both below the 60 FPS standard, making them poor choices for any serious gaming session. The data suggests that 4K users should stick to Low or Medium settings, with Medium providing a 73 FPS average and a minimum FPS of 62 that ensures minimal stuttering.

The Medium preset deserves special attention because it is the only one with recorded minimum and maximum FPS values. At 1080p, the min is 186 FPS and max is 251 FPS, giving a range of 65 FPS. At 1440p, the min is 118 FPS and max is 160 FPS, a range of 42 FPS. At 4K, the min is 62 FPS and max is 84 FPS, a range of 22 FPS. This narrowing range at higher resolutions indicates that the GPU becomes more consistently loaded, reducing frame time variance. For users seeking a stable experience, Medium at 1440p offers the best combination of high average FPS (139) and relatively tight frame pacing.

FAQ

Q: Can this system run Fortnite at 4K with high settings?

A: The measured data shows an average of 57 FPS at 3840x2160 with High settings. This is below the 60 FPS target for smooth gameplay, so while it is technically playable, it is not recommended for competitive play or high-refresh-rate displays.

Q: What is the best resolution for this combo?

A: 2560x1440 offers the best balance, with all presets except Ultra exceeding 100 FPS. The Medium preset at 1440p provides 139 FPS average with a minimum of 118 FPS, making it the most well-rounded configuration.

Q: How does the RTX 4080 compare to its closest rival in this system?

A: The RTX 4080 has an average benchmark score of 54247, which is 0.1% lower than the RTX 4080 SUPER (54209). The deltaPct of 0.1% indicates near-identical performance, meaning the 4080 is not meaningfully slower than its immediate successor.

Q: Is the CPU a bottleneck at any resolution?

A: At 1920x1080 Low, the system achieves 310 FPS, which suggests the Core Ultra 7 155H is capable of feeding the GPU sufficiently at lower resolutions. However, the 66% drop from 1080p Low to 4K Low (310 to 104 FPS) indicates the GPU becomes the limiting factor as resolution increases.

Q: What settings are recommended for 4K gaming?

A: Low settings at 4K produce 104 FPS, while Medium produces 73 FPS. Both are playable, but Low is recommended for smoother gameplay and Medium for better visuals. High and Ultra should be avoided due to sub-60 FPS averages.

Q: Does the RTX 4080 have enough VRAM for Fortnite?

A: The GPU has 16 GB of GDDR6X memory, which is more than sufficient for Fortnite at any resolution. The measured frame rates do not show signs of VRAM capacity issues, even at 4K Ultra, suggesting memory size is not a bottleneck.

CPU Role

The Intel Core Ultra 7 155H is a 16-core, 22-thread processor based on the Meteor Lake architecture, with a base clock of 3.80 GHz and a boost clock of 4.80 GHz. Its Cinebench R23 multi-core score of 15028 and single-core score of 1743 indicate solid performance for a mobile part, but its role in Fortnite is primarily to feed the RTX 4080 with draw calls and game logic data. The CPU’s 24 MB of shared L3 cache and 2 MB L2 cache per core provide adequate memory hierarchy for this task.

The measured FPS at 1080p Low (310 FPS) is the strongest evidence of the CPU’s capability, as this is the resolution and settings combination where the GPU is least likely to be the bottleneck. The fact that the system can exceed 300 FPS suggests that the Core Ultra 7 155H’s single-thread performance is sufficient to drive the game’s main thread at very high frame rates. However, the CPU’s PassMark single-thread score of 3468 and its 83rd percentile ranking among all CPUs place it in the upper tier but not at the absolute top, which may explain why frame rates do not scale linearly with resolution at lower settings.

The CPU’s nearest rival in terms of average benchmark score is the Intel Core i5-14600T, with a deltaPct of 0%, meaning the two are statistically identical in overall performance. This is notable because the i5-14600T is a desktop processor, while the Core Ultra 7 155H is a mobile part with a 28W TDP. The fact that the mobile chip matches a desktop chip in synthetic benchmarks suggests that the Meteor Lake architecture is efficient, but it also implies that the CPU may not have the sustained multi-core headroom needed for heavily threaded workloads over long gaming sessions.

In Fortnite specifically, the CPU’s impact is most visible at 1080p. The drop from 310 FPS at Low to 218 FPS at Medium (a 30% reduction) and then to 169 FPS at High (a 23% reduction) indicates that the game’s CPU load increases with settings, but the GPU is still the primary constraint. At 4K, the CPU’s role diminishes further, as the GPU is clearly the limiting factor across all presets. The data suggests that the Core Ultra 7 155H is a capable but not exceptional gaming CPU, and its performance is adequate for this GPU pairing at resolutions above 1080p.

Measured FPS Breakdown

At 1920x1080, the system produces its highest frame rates across all presets. Low settings yield an average of 310 FPS, which is the single highest measured result in the entire dataset. Medium settings produce 218 FPS on average, with a minimum of 186 FPS and maximum of 251 FPS, indicating consistent performance with only 65 FPS of variance. High settings drop to 169 FPS, while Ultra settings settle at 112 FPS. The progression from Low to Ultra at 1080p shows a step-down of 92 FPS from Low to Medium, 49 FPS from Medium to High, and 57 FPS from High to Ultra.

At 2560x1440, the frame rates decrease but remain respectable. Low settings average 197 FPS, which is a 36% reduction from 1080p. Medium settings average 139 FPS with a minimum of 118 FPS and maximum of 160 FPS, providing a stable experience with 42 FPS of variance. High settings average 108 FPS, while Ultra settings average 71 FPS. The delta between Low and Ultra at 1440p is 126 FPS, which is the largest absolute spread of any resolution, indicating that settings have a more pronounced effect at this resolution than at 1080p.

At 3840x2160, the performance drops significantly. Low settings average 104 FPS, which is the only 4K preset to exceed 100 FPS. Medium settings average 73 FPS with a minimum of 62 FPS and maximum of 84 FPS, showing the tightest frame pacing of any configuration with a range of only 22 FPS. High settings average 57 FPS, and Ultra settings average 38 FPS. The transition from 1440p to 4K at Low settings (197 to 104 FPS) represents a 47% reduction, while at Ultra settings (71 to 38 FPS) the reduction is 46%, showing that resolution scaling is consistent across presets.

The minimum and maximum FPS data is only available for Medium settings at all three resolutions. At 1080p, the range is 186-251 FPS; at 1440p, it is 118-160 FPS; and at 4K, it is 62-84 FPS. The narrowing range at higher resolutions indicates that the GPU becomes more consistently loaded, reducing frame time spikes. This data point suggests that Medium settings offer the most predictable performance profile, which is valuable for users who prioritize consistent frame times over raw averages.

How This Combo Ranks

The combination of the Intel Core Ultra 7 155H and NVIDIA GeForce RTX 4080 ranks 821st out of 2740 tested combinations in Fortnite, placing it in the top 30% of all configs. This ranking is somewhat surprising given the high-end nature of the GPU, but it reflects the fact that many of the combinations above it likely pair the RTX 4080 with more powerful desktop CPUs, such as the Core i9 or Ryzen 9 series, which can push higher frame rates at 1080p.

The rank of 821 out of 2740 means that 1919 combinations perform worse than this one, while 820 perform better. The fact that this combo is in the 70th percentile of all tested systems indicates that it is a solid performer, but not exceptional. The GPU’s 86th percentile ranking among all GPUs is significantly higher than the combo’s overall rank, which suggests that the CPU is holding back the system in some scenarios, particularly at lower resolutions where CPU overhead is more pronounced.

The CPU’s 83rd percentile ranking among all CPUs is also higher than the combo’s rank, further supporting the notion that the pairing is not optimal. When both components are in the 83rd-86th percentile individually, one might expect the combo to rank higher than the 70th percentile, but the gap indicates that the mobile CPU’s power constraints or memory bandwidth limitations are reducing the system’s overall performance in Fortnite. The Core Ultra 7 155H’s 89.6 GB/s memory bandwidth, while adequate, is lower than what desktop CPUs with DDR5 support can achieve, and this may be a contributing factor to the lower-than-expected combo rank.

Despite the relatively modest rank, the measured FPS data shows that this combo is very capable for Fortnite in absolute terms. At 1080p Low, it achieves 310 FPS, which is competitive with many desktop systems. The 1440p Medium result of 139 FPS is also strong. The rank of 821 reflects the presence of many higher-performing combos, but it does not diminish the fact that this system can deliver smooth, high-refresh-rate gameplay in Fortnite at most settings and resolutions.