Fortnite

Resolution Scaling

The measured FPS data for Fortnite with the AMD Ryzen 9 9900X and NVIDIA GeForce RTX 5080 shows a clear and predictable pattern as resolution increases. Moving from 1920x1080 to 2560x1440 and then to 3840x2160 produces substantial frame rate drops at every preset, but the degree of the drop varies significantly depending on the graphics settings selected.

At the Low preset, the system delivers 448 FPS at 1920x1080, which drops to 285 FPS at 2560x1440, and further to 150 FPS at 3840x2160. This represents a 36% reduction from 1080p to 1440p, and a 47% reduction from 1440p to 4K. The total drop from 1080p to 4K is 67%. This steep scaling curve at Low settings indicates that the GPU is not the primary constraint at lower resolutions; the frame rates are so high that other factors, likely related to the CPU's ability to feed the render pipeline, become increasingly significant.

The High preset shows a similar relative pattern but at lower absolute frame rates. Starting at 245 FPS at 1080p, it falls to 155 FPS at 1440p (a 37% drop) and then to 82 FPS at 4K (a 47% drop from 1440p). The overall reduction from 1080p to 4K is 67%, nearly identical to the Low preset. This consistency suggests that the scaling behavior is governed by the same underlying bottleneck dynamics across these two presets.

The Medium preset, which is the only one with recorded min and max FPS values, shows a slightly different scaling pattern. At 1080p, the average is 316 FPS with a minimum of 268 FPS and maximum of 363 FPS. At 1440p, the average drops to 201 FPS (a 36% reduction) with min and max of 171 and 231 FPS respectively. At 4K, the average is 106 FPS, which represents a 47% drop from 1440p. The min and max at 4K are 90 and 122 FPS.

The Ultra preset exhibits the most dramatic scaling. It delivers 161 FPS at 1080p, 103 FPS at 1440p (a 36% drop), and 54 FPS at 4K (a 48% drop from 1440p). The total reduction from 1080p to 4K is 66%. The fact that the relative drops are so consistent across all four presets—hovering around 36-37% for the 1080p to 1440p step and 47-48% for the 1440p to 4K step—indicates that resolution scaling in Fortnite is highly uniform for this hardware combination.

What this consistency suggests about the limiting component is important. If the GPU were the sole bottleneck, one would expect the percentage drops to accelerate more dramatically at higher resolutions where pixel count increases significantly. Instead, the uniform scaling pattern implies that both the CPU and GPU contribute to the frame rate ceiling across all resolutions, with the CPU's influence being more pronounced at lower resolutions where the GPU has more headroom.

GPU Role

The NVIDIA GeForce RTX 5080 is built on the Blackwell 2.0 architecture with the GB203 chip manufactured on a 5 nm process at TSMC. It features 16 GB of GDDR7 memory on a 256-bit bus, providing a memory bandwidth of 960.0 GB/s. The GPU's base clock is 2295 MHz, with a boost clock of 2617 MHz. These specifications are directly relevant to Fortnite's performance characteristics.

The 16 GB VRAM capacity is more than sufficient for Fortnite at any of the tested settings and resolutions. Even at 3840x2160 with the Ultra preset, the game's memory footprint does not approach the 16 GB limit, meaning the GPU never has to fall back on system memory or reduce texture quality due to VRAM pressure. The GDDR7 memory type and the 960.0 GB/s bandwidth provide ample data throughput for the game's asset streaming and texture rendering demands.

The GPU's clock behavior is worth examining in the context of the measured frame rates. The boost clock of 2617 MHz is relatively high, and the RTX 5080's ability to maintain high clocks under load is a key factor in its Fortnite performance. The shading units number 10,752, with 336 texture mapping units and 112 render output units. The GPU also has 84 RT cores and 336 tensor cores, which support the game's ray tracing and other advanced rendering features if enabled, though the measured data does not specify whether ray tracing was active.

The RTX 5080's performance in synthetic benchmarks provides context for its Fortnite results. It scores 36,565 in Passmark G3D, 23,5901 in Geekbench OpenCL, and 255,450 in Geekbench Vulkan. These scores place the GPU at the 87th percentile versus all GPUs, indicating it is a high-end part. Its nearest rivals include the AMD Radeon 8060S with a delta of 0.6%, the AMD Radeon RX 6750 GRE 12 GB with a delta of 0.7%, and the AMD Radeon Pro W5700X with a delta of 2.3%. The AMD Radeon RX 9070 GRE is 2.2% ahead.

The data shows that the GPU's role in Fortnite becomes more pronounced at higher resolutions. At 1920x1080 with Low settings, the GPU is clearly not the limiting factor—the 448 FPS average suggests the CPU is holding the system back from even higher frame rates. However, at 3840x2160 with Ultra settings, the 54 FPS average indicates the GPU is now the dominant constraint, as the pixel fill rate and shading demands overwhelm the CPU's ability to compensate. The GPU's pixel rate of 293.1 GPixel/s and texture rate of 879.3 GTexel/s are substantial, but the Ultra preset at 4K pushes the RTX 5080 to its limits.

CPU Role

The AMD Ryzen 9 9900X is a 12-core, 24-thread processor based on the Zen 5 architecture, codenamed Granite Ridge. It operates on the AMD Socket AM5 platform with a base clock of 4.40 GHz and a boost clock of 5.60 GHz. The CPU has a 64 MB L3 cache, with 1 MB L2 cache per core and 80 KB L1 cache per core. Its memory support includes DDR5 with dual-channel configuration and 89.6 GB/s bandwidth.

In synthetic benchmarks, the Ryzen 9 9900X demonstrates strong multi-threaded performance. It scores 32,172 in Cinebench R23 multi-core and 5,008 in Cinebench R15 multi-core. Its single-core scores are 2,253 in Cinebench R23 and 353 in Cinebench R15. In Geekbench, it achieves 22,174 multi-core and 3,010 single-core. The Passmark multi-thread score is 54,643, and the single-thread score is 4,672. The CPU sits at the 92nd percentile versus all CPUs, with an average benchmark score of 57,498.

The nearest rivals to the Ryzen 9 9900X in the benchmark database are the AMD EPYC 9015 with a delta of -0.1%, the AMD EPYC 7313 with a delta of 0.2%, the Intel Core i9-14900 with a delta of -1.1%, and the Intel Xeon Platinum 8260M with a delta of -1.4%. These deltas are all within 1.5%, indicating that the 9900X performs at a similar level to these processors in aggregate benchmarks.

For Fortnite specifically, the CPU's role is most evident at lower resolutions and lower graphics settings. At 1920x1080 with Low settings, the 448 FPS average is a clear indicator that the CPU is the primary bottleneck. The Ryzen 9 9900X's boost clock of 5.60 GHz and strong single-thread performance (2,253 in Cinebench R23 single-core) are critical for achieving such high frame rates in a game like Fortnite, which has a significant CPU-bound component in its game logic and physics simulation.

The 12-core, 24-thread configuration provides substantial multi-threaded headroom. Fortnite can utilize multiple cores for various tasks including rendering threads, physics, and audio processing, but the game's frame rate at high FPS levels is often limited by single-thread performance. The 9900X's single-thread score of 4,672 in Passmark and 3,010 in Geekbench single-core positions it well for this task.

At 3840x2160 with Ultra settings, the CPU's influence diminishes as the GPU becomes the limiting factor. The 54 FPS average at this configuration is primarily constrained by the RTX 5080's ability to process the increased pixel and shading workload. However, the CPU still needs to maintain frame pacing and feed the GPU with draw calls and geometry data, and the 9900X's capabilities ensure it does not become a secondary bottleneck even at 4K.

FAQ

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

A: The highest measured average FPS is 448, achieved at 1920x1080 resolution with the Low preset.

Q: How does the system perform at 4K with Medium settings?

A: At 3840x2160 with Medium settings, the average FPS is 106, with a minimum of 90 FPS and a maximum of 122 FPS.

Q: Is the CPU or GPU the main bottleneck at 1080p Low settings?

A: Based on the data, the CPU is the primary bottleneck at 1080p Low settings, as the 448 FPS average suggests the GPU has more headroom but is limited by the CPU's frame production capability.

Q: What is the lowest FPS recorded in the measured data?

A: The lowest average FPS is 54, which occurs at 3840x2160 with the Ultra preset. The lowest minimum FPS recorded is 90, at 3840x2160 with Medium settings.

Q: How much faster is the 1080p Low preset compared to the 1080p Ultra preset?

A: The 1080p Low preset delivers 448 FPS, while the 1080p Ultra preset delivers 161 FPS. This means the Low preset is approximately 278% faster than Ultra at this resolution.

Q: Does the combo rank in the top 10% of tested combinations for Fortnite?

A: The combo ranks 185th out of 3,700 tested combinations, which places it in the top 5% of all tested combos for Fortnite.

Measured FPS Breakdown

The measured FPS data for this hardware combination covers three resolutions and four settings presets, providing a comprehensive view of performance.

At 1920x1080, the Low preset achieves an average of 448 FPS. The Medium preset averages 316 FPS, with a minimum of 268 FPS and a maximum of 363 FPS. The High preset averages 245 FPS. The Ultra preset averages 161 FPS. The progression from Low to Ultra shows a consistent decline, with each successive preset tier reducing frame rates by roughly 30-35%.

At 2560x1440, the Low preset averages 285 FPS. The Medium preset averages 201 FPS, with a minimum of 171 FPS and a maximum of 231 FPS. The High preset averages 155 FPS. The Ultra preset averages 103 FPS. The relative ordering remains the same as at 1080p, with Low being the fastest and Ultra being the slowest.

At 3840x2160, the Low preset averages 150 FPS. The Medium preset averages 106 FPS, with a minimum of 90 FPS and a maximum of 122 FPS. The High preset averages 82 FPS. The Ultra preset averages 54 FPS. At this resolution, the gap between Low and Ultra is particularly pronounced, with Ultra delivering less than half the frame rate of Low.

The Medium preset is the only one with complete min/max data across all three resolutions. At 1080p, the min is 268 and the max is 363, giving a range of 95 FPS. At 1440p, the min is 171 and the max is 231, a range of 60 FPS. At 4K, the min is 90 and the max is 122, a range of 32 FPS. This narrowing range at higher resolutions indicates that frame time consistency improves as the GPU becomes more heavily loaded, reducing the impact of CPU-side frame pacing fluctuations.

Settings Recommendations

Based on the measured FPS data, the optimal settings preset depends on the user's target resolution and frame rate preferences.

For users with a 1920x1080 display, the Medium preset at 316 FPS offers an excellent balance between visual quality and performance. The High preset at 245 FPS still provides very high frame rates, and the Ultra preset at 161 FPS is more than sufficient for high-refresh-rate gaming, as it remains above 144 FPS. The Low preset at 448 FPS is ideal for competitive play where maximum frame rates are prioritized over visual fidelity.

At 2560x1440, the Medium preset at 201 FPS is the recommended choice for most users, as it delivers high frame rates with good visual quality. The High preset at 155 FPS is also viable for users who prefer better visuals and have a 144 Hz display. The Ultra preset at 103 FPS is playable but may not fully utilize a 144 Hz monitor. The Low preset at 285 FPS is the best option for competitive gaming at this resolution.

For 3840x2160, the Low preset at 150 FPS is the only setting that delivers frame rates above 144 FPS, making it the recommended choice for competitive play on 4K displays. The Medium preset at 106 FPS is suitable for users with a 120 Hz monitor, as it stays above 90 FPS even in the worst measured moments. The High preset at 82 FPS and Ultra preset at 54 FPS are better suited for users with 60 Hz displays who prioritize visual quality over frame rate.

The data shows that the Medium preset consistently provides the best balance across all three resolutions. It maintains frame rates that are roughly 2-3 times higher than Ultra while offering significantly better visuals than Low. The min FPS values for Medium at each resolution (268 at 1080p, 171 at 1440p, 90 at 4K) indicate that frame pacing remains stable, with no severe dips that would cause noticeable stuttering.

How This Combo Ranks

The combination of the AMD Ryzen 9 9900X and NVIDIA GeForce RTX 5080 ranks 185th out of 3,700 tested combinations for Fortnite. This places the combo in the top 5% of all tested hardware pairings, indicating that it is among the higher-performing configurations for this game.

The rank of 185 out of 3,700 is notable because it suggests that while this combo is very fast, there are 184 other combinations that achieve higher performance in Fortnite. Given that the RTX 5080 ranks at the 87th percentile among all GPUs and the Ryzen 9 9900X ranks at the 92nd percentile among all CPUs, one might expect the combo to rank even higher. However, Fortnite's performance characteristics mean that combinations with even faster CPUs or GPUs, or specific pairings that optimize for the game's engine, can achieve higher frame rates.

The combo's ranking relative to the individual component percentiles is informative. The CPU's 92nd percentile and GPU's 87th percentile suggest that the CPU is relatively stronger than the GPU in this pairing. In Fortnite, which can be CPU-bound at lower resolutions, this balance is advantageous. The combo's top 5% ranking reflects this favorable balance, as the strong CPU ensures high frame rates at 1080p and 1440p, while the capable GPU handles 4K adequately.

Compared to other combos in the top 185, this pairing likely benefits from the Ryzen 9 9900X's high boost clock of 5.60 GHz and strong single-thread performance, which are critical for Fortnite's CPU-bound scenarios. The RTX 5080's 16 GB VRAM and high memory bandwidth of 960.0 GB/s ensure that the GPU does not become a limiting factor in most situations, allowing the CPU to drive frame rates as high as 448 FPS at 1080p Low settings.

The ranking also indicates that users with this combo can expect excellent performance across all tested settings and resolutions. The lowest measured frame rate—54 FPS at 4K Ultra—is still playable, while the highest—448 FPS at 1080p Low—is exceptional. This wide performance envelope makes the combo versatile for different gaming scenarios, from competitive play at high frame rates to visually demanding sessions at 4K.