Fortnite

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

The measured FPS data for this Intel Core i9-14900K + Intel Arc B580 combo in Fortnite reveals a steep and consistent performance drop as resolution climbs, which points squarely at the graphics card as the primary bottleneck. At 1080p Low, the combo delivers 200.5 FPS, but stepping up to 1440p Low drops that to 127.5 FPS — a 36% reduction. Pushing further to 4K Low yields 66.4 FPS, which is less than one-third of the 1080p Low figure. This pattern of roughly halving performance at each major resolution step is classic GPU-bound behavior.

The scaling becomes even more dramatic when examining the High preset. At 1080p High, the combo reaches 106.2 FPS. At 1440p High, that falls to 71.2 FPS, and at 4K High it collapses to 34.2 FPS. The jump from 1440p to 4K alone cuts frame rates by more than half, suggesting the Arc B580's rendering pipeline becomes saturated well before the CPU's considerable headroom is exhausted. The data implies that the 24-core, 32-thread i9-14900K is not the limiting factor here; even at 1080p Low with 200.5 FPS, the CPU is likely still not breaking a sweat given its 97th percentile ranking among all CPUs.

What's curious is the gap between Low and Medium settings at each resolution. At 1080p, Low produces 200.5 FPS while Medium drops to 139.5 FPS — a 61 FPS difference. At 1440p, the same settings gap yields 127.5 versus 89.7 FPS, and at 4K it's 66.4 versus 47.6 FPS. This suggests that Medium settings introduce enough additional shading and geometry work to significantly tax the B580's 13.67 TFLOPS of FP32 compute, even though the visual difference between Low and Medium in Fortnite is often modest. The GPU's 192-bit memory bus and 456.0 GB/s bandwidth appear to be the constraining resources as resolution climbs.

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

The Intel Core i9-14900K brings overwhelming CPU resources to this pairing: 24 cores, 32 threads, a 3.20 GHz base clock, and a 6.00 GHz boost clock. In Fortnite, which is generally not considered a heavily threaded title, the benchmark results indicate that this processor is providing far more capability than the game can utilize. The data shows no evidence of CPU limitation at any resolution or settings combination — even the most demanding 4K Ultra result of 21.6 FPS is clearly GPU-bound rather than CPU-bound.

The i9-14900K's benchmark scores reinforce its status as a top-tier processor. Its Cinebench R23 multi-core score of 49872 and single-core score of 7040 place it in the 97th percentile of all CPUs. The nearest rivals in the data — the AMD EPYC 7413, Intel Core i9-14900KF, Intel Core Ultra 7 265KF, and Intel Core Ultra 7 265K — all sit within 1% of the i9-14900K's average benchmark score of 79824. This means the CPU is trading blows with the fastest desktop processors available, and Fortnite's frame rates are not going to be constrained by this component.

The processor's 36 MB of shared L3 cache and 2 MB per-core L2 cache likely help with game logic and draw call processing, but Fortnite's performance scaling with resolution suggests that the CPU is idling relative to the GPU's workload. The 125 W TDP and Intel Socket 1700 platform are standard for this class, and the DDR4/DDR5 memory support offers flexibility, but none of these factors appear to be influencing the measured FPS in a meaningful way. The CPU's role here is to stay out of the way, and the data suggests it does exactly that.

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

The Intel Arc B580 is the component that defines this combo's Fortnite performance. With 12 GB of GDDR6 memory on a 192-bit bus delivering 456.0 GB/s bandwidth, the card has ample memory capacity for Fortnite at any settings level. The base and boost clocks are both 2670 MHz, with memory running at 2375 MHz (19 Gbps effective). The 2560 shading units and 80 ROPs are moderate for a modern GPU, and the 13.67 TFLOPS FP32 compute figure suggests this is a mid-range part.

The GPU's benchmark profile places it at the 66th percentile of all GPUs, with an average benchmark score of 23021. Its nearest rival in the data is the NVIDIA GeForce RTX 4060, which scores 23181 — a 0.7% difference in the B580's favor. This positioning explains the measured Fortnite results: the card is competitive with entry-level to mid-range discrete GPUs, capable of high refresh rates at 1080p but struggling to maintain playable frame rates at 4K Ultra.

The 4K Ultra result of 21.6 FPS is particularly telling. That's barely above slideshow territory, and it indicates that the B580's 80 ROPs and 213.6 GPixel/s pixel rate are insufficient for the pixel-pushing demands of 4K with Ultra settings in Fortnite. The card's 20 ray tracing cores are present, but Fortnite's ray-traced effects are not part of the measured data, so their impact is not quantified here. The 190 W TDP and single 8-pin power connector suggest this is a power-efficient card, but that efficiency doesn't translate into high-end rasterization performance at extreme resolutions.

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

The full measured FPS table for this combo in Fortnite is as follows: at 3840x2160, Low yields 66.4 FPS, Medium 47.6 FPS, High 34.2 FPS, and Ultra 21.6 FPS. At 2560x1440, Low produces 127.5 FPS, Medium 89.7 FPS, High 71.2 FPS, and Ultra 47.4 FPS. At 1920x1080, Low delivers 200.5 FPS, Medium 139.5 FPS, High 106.2 FPS, and Ultra 72.3 FPS.

The most striking observation is the 1080p Low result of 200.5 FPS — this is more than triple the 4K Ultra result and suggests that the combo can deliver esports-level responsiveness when settings are minimized. However, the drop from Low to Ultra at 1080p is substantial, with Ultra producing 72.3 FPS — a 64% reduction. At 1440p, the Low-to-Ultra spread goes from 127.5 FPS to 47.4 FPS, and at 4K, the same spread yields 66.4 FPS down to 21.6 FPS.

What's notable is the consistency of the settings penalty across resolutions. At every resolution, Ultra costs roughly two-thirds of the Low frame rate, while Medium and High sit predictably in between. This uniform scaling suggests that Fortnite's settings presets impose a consistent GPU workload multiplier, regardless of resolution. The 1440p Medium result of 89.7 FPS is the closest to the 90 FPS threshold that many players consider the minimum for smooth gameplay, while 1080p High at 106.2 FPS comfortably exceeds that bar.

How This Combo Ranks — use comboRankInGame vs other tested combos

This specific combination of the Intel Core i9-14900K and Intel Arc B580 ranks 1204th out of 1564 tested combos in Fortnite. That places it in the bottom quarter of all system pairings, which is surprising given the CPU's 97th percentile status. The ranking makes it clear that the GPU's 66th percentile positioning dominates the overall outcome — the i9-14900K's CPU headroom cannot compensate for the B580's mid-range GPU capabilities in a game that becomes heavily GPU-bound at higher resolutions.

The rank of 1204 out of 1564 means that roughly 77% of tested combinations deliver better Fortnite performance. This is a stark illustration of how a top-tier CPU paired with a mid-range GPU can still result in a below-average gaming experience relative to other system builds. The data suggests that Fortnite's performance is overwhelmingly determined by the GPU, and the B580's 66th percentile standing is the primary driver of this low ranking.

When compared to the GPU's nearest rivals, the B580's position becomes clearer. The RTX 4060 scores 0.7% higher in average benchmark score, and the AMD Radeon 760M and NVIDIA P106-100 are within 0.3% and 0.1% respectively. This tight grouping indicates that the B580 is squarely in the mid-range tier, and the combo ranking reflects that reality. The CPU's nearest rivals — all within 0.9% of the i9-14900K's average score — are irrelevant to the Fortnite outcome because the GPU is the limiting factor in every measured configuration.

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

Based on the measured FPS data, the optimal settings for this combo depend heavily on the target resolution and desired frame rate. At 1080p, the Low preset delivers 200.5 FPS, which is ideal for competitive play on high refresh rate monitors. However, the Medium preset at 139.5 FPS still provides excellent responsiveness while offering improved visual quality. The High preset at 106.2 FPS is a reasonable compromise for players who prioritize visuals over raw frame rate, but the Ultra preset at 72.3 FPS sacrifices too much performance for marginal visual gains on this hardware.

At 1440p, the Low preset's 127.5 FPS is the only option that clearly exceeds the 120 FPS threshold often sought by competitive players. The Medium preset at 89.7 FPS is the best balance for most users, as it stays above 60 FPS while providing better visuals. The High preset at 71.2 FPS is borderline playable but will feel less smooth, and the Ultra preset at 47.4 FPS is below the 60 FPS minimum that most players consider acceptable for a fast-paced battle royale.

At 4K, no settings preset achieves a consistently smooth experience. The Low preset's 66.4 FPS is the only one that remains above 60 FPS, but even that will dip in intense combat scenarios. The Medium preset at 47.6 FPS and High at 34.2 FPS are playable but not competitive, and Ultra at 21.6 FPS is effectively unplayable. For 4K gaming, the data suggests dropping to 1440p would be the better choice, as the 1440p Medium result of 89.7 FPS offers a far better experience than any 4K configuration.

FAQ

Q: What is the best resolution for this CPU+GPU combo in Fortnite?

A: The 1920x1080 resolution delivers the highest frame rates across all settings, with Low producing 200.5 FPS, Medium 139.5 FPS, High 106.2 FPS, and Ultra 72.3 FPS. This makes 1080p the only resolution where all settings presets remain above 60 FPS.

Q: Is the Intel Core i9-14900K holding back the Intel Arc B580 in this game?

A: No, the data shows the opposite. The i9-14900K ranks in the 97th percentile of all CPUs, while the B580 ranks in the 66th percentile of GPUs. The FPS drops from 1080p to 4K indicate GPU-bound performance, meaning the CPU is not the limiting factor.

Q: How does the Intel Arc B580 compare to its nearest GPU rival, the RTX 4060?

A: The B580 has an average benchmark score of 23021, while the RTX 4060 scores 23181 — a 0.7% difference in favor of the RTX 4060. This places them in the same performance tier, and the measured Fortnite results reflect this close competition.

Q: Can this combo run Fortnite at 4K?

A: At 4K, the Low preset achieves 66.4 FPS, Medium 47.6 FPS, High 34.2 FPS, and Ultra 21.6 FPS. Only Low remains above 60 FPS, so 4K is only viable with heavily reduced settings.

Q: What settings preset gives the best balance of visuals and performance at 1440p?

A: The Medium preset at 89.7 FPS is the best balance, as it stays comfortably above 60 FPS while providing noticeably better visuals than Low. The High preset at 71.2 FPS is also acceptable but leaves less headroom.

Q: How does this combo rank among all tested Fortnite system combinations?

A: It ranks 1204th out of 1564 tested combos, placing it in the lower quarter of all systems. This low ranking is primarily due to the GPU's mid-range performance tier, despite the CPU being one of the fastest available.