Fortnite

The AMD Ryzen 5 8400F and NVIDIA GeForce RTX 5090 D combination produces a wide spread of frame rates in Fortnite, ranging from a highly playable 63 FPS at 4K Ultra to a blistering 442 FPS at 1080p Low. The data reveals a system where the GPU is the primary bottleneck at maximum settings, but the CPU’s 6-core, 12-thread configuration becomes increasingly relevant as resolution drops and frame rates climb past the 300 FPS mark.

CPU Role — cores, clocks, and how they relate to this game's results

The Ryzen 5 8400F is a 6-core, 12-thread processor based on the Zen 4 architecture, built on a 4 nm process at TSMC. It operates with a base clock of 4.20 GHz and a boost clock of 4.70 GHz, which is a modest clock spread, suggesting the chip can sustain high frequencies under load. The processor features a 16 MB shared L3 cache, with 1 MB of L2 per core and 64 KB of L1 per core. This configuration is typical for a mainstream desktop chip, and its benchmark scores place it in the 77th percentile of all CPUs, with an average benchmark score of 25005.

In the context of Fortnite's measured results, the CPU's role is best understood by examining the scaling from 4K to 1080p. At 4K Ultra, the combo produces 63 FPS, while at 4K Low it reaches 175 FPS. This is a 112 FPS jump from lowering settings, which indicates that the GPU is heavily loaded at 4K, but the CPU is still capable of feeding it frames. However, at 1080p Low, the combo hits 442 FPS. This massive increase over the 4K Low result shows that the CPU is not the limiting factor at lower resolutions; rather, it is the GPU that caps performance at higher resolutions.

The CPU's multi-threaded performance is strong, with a Cinebench R23 multi-core score of 20851 and a single-core score of 2943. Fortnite is a game that benefits from high single-thread performance, and the 8400F's single-core score of 2943 in Cinebench R23 is respectable. The data suggests that at 1080p, the CPU has enough headroom to push frame rates well beyond what most displays can show, as evidenced by the 442 FPS Low result. The 3DMark 16-thread score of 6091 and max-thread score of 6165 show that the 12 threads are effectively utilized, but the single-thread score of 951 in 3DMark indicates that individual core performance is also a key strength.

The nearest rival, the AMD Ryzen 5 7500F, has an average score of 24964, which is 0.2% higher than the 8400F's 25005. This negligible difference means that in CPU-bound scenarios, the 8400F should perform nearly identically to the 7500F. The Intel Core i7-13620H is 0.4% ahead, while the AMD EPYC 9474F is 0.4% behind. These small deltas suggest that the 8400F is well-positioned in its performance tier, but the game's results are more heavily influenced by the GPU at higher settings.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

Q: What is the highest average FPS recorded for this combo in Fortnite, and at what settings?

A: The highest average FPS is 442, achieved at 1920x1080 resolution with Low settings. This is significantly higher than the 4K Low result of 175 FPS, highlighting how resolution impacts frame rates.

Q: How does the Ryzen 5 8400F compare to its nearest rival, the Ryzen 5 7500F?

A: The Ryzen 5 8400F has an average benchmark score of 25005, while the Ryzen 5 7500F scores 24964. This gives the 8400F a 0.2% advantage over its direct rival, making their overall performance essentially equivalent.

Q: Is the GPU or CPU the limiting factor at 1440p Medium settings?

A: At 2560x1440 with Medium settings, the combo achieves 234 FPS with a minimum of 199 FPS. Given that the 1080p Low result is 442 FPS, the GPU is likely the primary limiter at 1440p Medium, as the CPU has demonstrated it can push much higher frame rates at lower resolutions.

Q: What is the lowest average FPS recorded, and does it remain playable?

A: The lowest average FPS is 63, recorded at 3840x2160 with Ultra settings. While this is the lowest result, it is still above the 60 FPS threshold, indicating that the combo can handle 4K Ultra in Fortnite, albeit with a reduced frame rate compared to lower settings.

Q: What is the combo's rank among all tested combinations for Fortnite?

A: The combo ranks 30th out of 2740 tested combinations in Fortnite. This puts it in the top 1.1% of all combos, showing that it is a high-performing pairing for this game.

Q: How much of a frame rate increase is seen when moving from High to Low settings at 1080p?

A: At 1920x1080, the High settings produce 285 FPS, while Low settings produce 442 FPS. This is a 157 FPS increase, or roughly 55% higher, demonstrating that Low settings significantly reduce GPU load and allow for much higher frame rates.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The resolution scaling data shows a predictable pattern of decreasing frame rates as resolution increases, but the magnitude of the drops reveals which component is under the most stress. At Low settings, the frame rates are 442 FPS at 1080p, 332 FPS at 1440p, and 175 FPS at 4K. This is a drop of 110 FPS from 1080p to 1440p, and another 157 FPS from 1440p to 4K. The percentage drop from 1080p to 4K is approximately 60%, which is substantial but not as steep as the drop seen at higher settings.

At Ultra settings, the frame rates are 188 FPS at 1080p, 120 FPS at 1440p, and 63 FPS at 4K. The drop from 1080p to 1440p is 68 FPS, and from 1440p to 4K is 57 FPS. The total drop from 1080p to 4K is 125 FPS, which is a 66% reduction. This steeper percentage drop at Ultra settings compared to Low settings indicates that the GPU is the primary limiting factor at higher quality presets.

The data shows that at 1080p Low, the combo is likely CPU-bound, as the GPU is not fully utilized at 442 FPS. However, at 4K Ultra, the GPU is clearly the bottleneck, as the frame rate drops to 63 FPS despite the CPU having ample headroom. The Medium settings show a similar pattern, with 368 FPS at 1080p, 234 FPS at 1440p, and 123 FPS at 4K. The consistent scaling across all settings suggests that the RTX 5090 D is the dominant factor in determining performance, while the Ryzen 5 8400F provides sufficient processing power to avoid becoming a major constraint until very low resolutions.

Settings Recommendations — which preset gives the best experience per the measured rows

Based on the measured FPS data, the Medium preset appears to offer the best balance between visual quality and performance across all resolutions. At 1080p Medium, the combo achieves 368 FPS with a minimum of 312 FPS, which is well above the refresh rate of most high-end monitors. At 1440p Medium, the average is 234 FPS with a minimum of 199 FPS, keeping gameplay smooth even in demanding scenes. At 4K Medium, the average drops to 123 FPS with a minimum of 105 FPS, which is still comfortably playable on a 120Hz display.

The High preset offers solid performance, with 285 FPS at 1080p, 181 FPS at 1440p, and 96 FPS at 4K. However, the drop from Medium to High at 1080p is 83 FPS, which is a significant loss for a modest visual upgrade. The Ultra preset provides the highest visual fidelity but sacrifices substantial frame rates, particularly at 4K where it only manages 63 FPS. This makes Ultra less suitable for competitive play, but acceptable for a more cinematic experience.

Given that the minimum FPS is provided for Medium settings, this preset also offers the most predictable frame pacing. The 1080p Medium minimum of 312 FPS is higher than the average of the 4K High preset, showing that Medium is the recommended choice for players who prioritize high frame rates. For those with 4K displays, Medium is the best option, as it keeps the average above 120 FPS, while High dips below 100 FPS and Ultra drops to 63 FPS.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combination of the AMD Ryzen 5 8400F and NVIDIA GeForce RTX 5090 D ranks 30th out of 2740 tested combinations in Fortnite. This places the combo in the top 1.1% of all tested systems, indicating that it is a high-end pairing that delivers exceptional performance in this game. The rank of 30 is impressive, especially considering that the Ryzen 5 8400F is a mainstream 6-core processor, not a flagship 16-core or 24-core part.

The high rank is largely attributable to the RTX 5090 D, which is a top-tier GPU with a 92nd percentile ranking among all GPUs. The GPU's average benchmark score is 77712, which is significantly higher than its nearest rivals. In contrast, the CPU is ranked in the 77th percentile, which is above average but not at the very top. The combination of a strong GPU with a capable CPU results in a system that excels in Fortnite, where high frame rates are heavily dependent on GPU performance.

The rank of 30 out of 2740 means that there are 29 other tested combos that perform better in Fortnite. These would likely feature more powerful CPUs, such as the Ryzen 9 or Core i9 series, paired with the same or similar GPUs. However, the data shows that the 8400F is sufficient to allow the RTX 5090 D to reach its potential, as the combo still achieves 442 FPS at 1080p Low. This indicates that the CPU is not a significant bottleneck, even at high frame rates.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

At 1920x1080, the combo delivers its highest frame rates across all settings. Low settings produce an average of 442 FPS, with no minimum or maximum provided. Medium settings yield 368 FPS, with a minimum of 312 FPS and a maximum of 423 FPS. High settings drop to 285 FPS, and Ultra settings fall to 188 FPS. The difference between Low and Ultra at 1080p is 254 FPS, showing a wide range of performance depending on the visual quality.

At 2560x1440, the frame rates are lower but still very high. Low settings achieve 332 FPS, Medium settings reach 234 FPS with a minimum of 199 FPS and a maximum of 269 FPS, High settings produce 181 FPS, and Ultra settings drop to 120 FPS. The drop from 1080p to 1440p is 110 FPS at Low settings, 134 FPS at Medium, 104 FPS at High, and 68 FPS at Ultra. This shows that the scaling is not uniform, with larger absolute drops at lower settings.

At 3840x2160, the frame rates are the lowest recorded. Low settings produce 175 FPS, Medium settings achieve 123 FPS with a minimum of 105 FPS and a maximum of 142 FPS, High settings drop to 96 FPS, and Ultra settings fall to 63 FPS. The drop from 1440p to 4K is 157 FPS at Low, 111 FPS at Medium, 85 FPS at High, and 57 FPS at Ultra. This indicates that the GPU is heavily taxed at 4K, especially at higher settings, where the frame rates approach the limits of playability.

GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 5090 D is a massive GPU, featuring 32 GB of GDDR7 memory on a 512-bit bus, providing a memory bandwidth of 1.79 TB/s. It is built on the Blackwell 2.0 architecture with a 5 nm process at TSMC, containing 92,200 million transistors on a 750 mm² die. The GPU operates with a base clock of 2017 MHz and a boost clock of 2407 MHz, with memory running at 1750 MHz or 28 Gbps effective. This hardware configuration places it in the 92nd percentile of all GPUs, with an average benchmark score of 77712.

In Fortnite, the GPU's immense memory bandwidth and 32 GB of VRAM are more than sufficient for the game's requirements, even at 4K Ultra. The measured results show that the GPU is the primary driver of performance, with frame rates scaling heavily with resolution. At 4K Ultra, the combo produces 63 FPS, which is a clear indication that the GPU is the limiting factor, as the CPU is capable of much higher frame rates at lower resolutions.

The GPU's nearest rivals include the AMD Radeon RX 6850M XT, which has a delta of -1.6%, and the NVIDIA Tesla P100 PCIe 16 GB, which is -2.4% behind. The RX 6650M XT is 1.1% ahead, but these are all laptop or datacenter parts, not direct desktop competitors. The RTX 5090 D's performance in Fortnite is exceptional, as evidenced by the high frame rates at 1080p and 1440p. The GPU's boost clock of 2407 MHz and 104.8 TFLOPS of FP32 performance ensure that it can handle the game's rendering demands with ease, even at the highest settings.