Fortnite

Resolution Scaling

The measured FPS data for Fortnite with the Intel Core Ultra 7 265 and Intel Arc B580 shows a clear and substantial performance drop as resolution increases from 1920x1080 to 3840x2160. At Low settings, the average frame rate falls from 200 FPS at 1080p to 127 FPS at 1440p, a 36.5% reduction, and then further to 67 FPS at 4K, which is a 47.2% drop from the 1440p result. This steep scaling curve indicates that the GPU becomes the primary limiting factor as pixel count rises, with the rendering load increasing quadratically with resolution.

Looking at Medium settings, the pattern persists but with a slightly different slope. The average FPS at 1080p is 141, dropping to 89 at 1440p (a 36.9% decrease) and then to 47 at 4K (a 47.2% decrease from 1440p). The consistency of these percentage drops across Low and Medium presets suggests that the Arc B580's rendering pipeline is being saturated in a predictable manner, with the 4K resolution pushing the GPU into a range where its 13.67 TFLOPS of FP32 compute and 456.0 GB/s of memory bandwidth are insufficient to maintain high frame rates.

At High settings, the scaling becomes even more pronounced. The 1080p result of 109 FPS drops to 69 FPS at 1440p, a 36.7% reduction, and then to 37 FPS at 4K, a 46.4% decline. The Ultra preset shows the most dramatic degradation: 72 FPS at 1080p falls to 46 FPS at 1440p (36.1% lower) and then to 24 FPS at 4K (47.8% lower). The fact that the Ultra preset at 4K yields only 24 FPS average indicates that this combination is not viable for competitive or even casual play at that resolution and quality level.

The data reveals that the frame rate scaling from 1080p to 1440p is relatively consistent across all settings, hovering around 36-37% performance loss. However, the 1440p to 4K transition is slightly steeper, with losses ranging from 46.4% to 47.8%. This asymmetry suggests that the B580's memory subsystem, with its 192-bit bus and 12 GB of GDDR6, begins to struggle more severely once the resolution exceeds what its bandwidth can efficiently feed. The 4K results at Medium (47 FPS) and High (37 FPS) are particularly telling, as they fall below the 60 FPS threshold that most players consider the minimum for smooth gameplay.

GPU Role

The Intel Arc B580's specifications directly explain several of the observed performance characteristics. With a base and boost clock of 2670 MHz, the GPU maintains a consistent operating frequency, which contributes to the predictable scaling patterns seen across resolutions. The 2560 shading units and 160 TMUs provide the raw processing power, but the 80 ROPs and the 456.0 GB/s memory bandwidth are the more critical factors at higher resolutions where pixel throughput and texture fetch rates dominate.

The 12 GB of GDDR6 memory on a 192-bit bus is adequate for Fortnite's asset sizes at 1080p and 1440p, but the 4K Ultra results (24 FPS average) indicate that the memory subsystem is being overwhelmed. The texture rate of 427.2 GTexel/s and pixel rate of 213.6 GPixel/s are theoretically sufficient for 4K at moderate settings, but the actual frame rates at 4K Medium (47 FPS) and 4K High (37 FPS) suggest that the GPU's compute capacity, not just memory bandwidth, is the bottleneck. The 13.67 TFLOPS of FP32 performance is modest by modern standards, and Fortnite's rendering workload at 4K with high-quality shadows, reflections, and post-processing effects pushes this GPU to its limits.

The Arc B580's percentile ranking of 68 among all GPUs places it in the upper-midrange tier, yet the nearest rival data shows an interesting comparison. The NVIDIA GeForce RTX 2080 has an average benchmark score of 22895, which is 0.6% lower than the B580's 23021, while the RTX 3080 scores 23172, just 0.7% higher. This indicates that the B580 is performing at a level comparable to these older NVIDIA flagships in synthetic benchmarks, but the Fortnite results suggest that real-world performance can vary based on the specific game's optimization. The PassMark G3D score of 15748 further contextualizes the GPU's capability, though the DirectX 12 score of 76 is notably lower, hinting at potential driver overhead in certain API paths.

The GPU's power draw of 190 W TDP and the 450 W suggested PSU requirement are consistent with its performance class, but these figures are secondary to the actual measured frame rates. The bus interface of PCIe 4.0 x8 could theoretically limit data transfer in CPU-bound scenarios, but Fortnite's engine is primarily GPU-bound at higher resolutions, so this is unlikely to be a significant constraint in the measured results.

CPU Role

The Intel Core Ultra 7 265 demonstrates that it is more than capable of keeping the Arc B580 fed in Fortnite, as evidenced by the frame rate progression across resolutions. With 20 cores and 20 threads, this Arrow Lake-S processor provides substantial parallel processing capability, though Fortnite's engine is not particularly well-known for utilizing many cores beyond a certain point. The base clock of 2.40 GHz and boost clock of 5.30 GHz give the CPU a wide operating range, and the single-thread performance is strong, as indicated by the Cinebench R23 single-core score of 5960.

The 30 MB of shared L3 cache and 3 MB per-core L2 cache provide ample fast storage for game data, which is crucial for maintaining high frame rates in a battle royale where many entities, structures, and effects must be tracked simultaneously. The PassMark single-thread score of 4689 and the multithread score of 49682 confirm that the CPU has both the per-core efficiency and the multi-core throughput needed for modern gaming workloads. The CPU's percentile ranking of 93 among all processors places it in the top 7%, making it a high-end option that should not be the bottleneck in this configuration.

The measured FPS data supports this assessment. At 1080p Low, the combination achieves 200 FPS, which is likely approaching the practical limit of the game engine's frame pacing. The fact that 1080p Medium achieves 141 FPS and 1080p High reaches 109 FPS indicates that the CPU is capable of driving high frame rates, but the GPU's rendering capabilities begin to limit performance as settings increase. The 1080p Ultra result of 72 FPS, which is a 48.6% drop from the Low setting, shows that the GPU's shader and texture processing becomes the limiting factor even at the lowest resolution.

In comparison to its nearest rivals, the Core Ultra 7 265's average benchmark score of 64640 is within 0.7% of the AMD EPYC 7343 (64202) and 0.3% of the Intel Core Ultra 7 265F (64438). The AMD EPYC 9124 scores 65104, which is 0.7% higher, and the EPYC 4464P scores 64823, a 0.3% difference. These margins are negligible in real-world gaming scenarios, indicating that the CPU's performance tier is well-matched to the Arc B580's capabilities.

How This Combo Ranks

The combination of the Intel Core Ultra 7 265 and Intel Arc B580 ranks 2032 out of 2740 tested combos in Fortnite, placing it in the 74th percentile of all combinations. This ranking reflects a mid-tier position that is consistent with the GPU's 68th percentile ranking among all GPUs, while the CPU's 93rd percentile ranking suggests that the processor is overqualified for the graphics card paired with it. The data indicates that the Arc B580 is the limiting component in this pairing, as the CPU has significant headroom to drive higher frame rates if paired with a more powerful GPU.

The combo's ranking of 2032 out of 2740 means that approximately 74% of tested combinations outperform it in Fortnite. This is a reasonable position for a midrange GPU paired with a high-end CPU, as the overall performance is constrained by the graphics card. The measured frame rates at 1080p Medium (141 FPS) and 1440p Medium (89 FPS) are respectable for competitive play, but the 4K results fall short of smooth gameplay standards for most users.

When considering the GPU's nearest rivals, the Arc B580's average benchmark score of 23021 is nearly identical to the RX 580 2048SP (23061, 0.2% higher) and the RTX 2080 (22895, 0.6% lower). This indicates that the B580's synthetic performance is comparable to these older cards, but Fortnite-specific optimizations may shift the balance. The combo's rank in this specific game, rather than in synthetic benchmarks, provides the most relevant information for players considering this configuration.

Measured FPS Breakdown

At 1920x1080, the measured average FPS values are as follows: Low settings produce 200 FPS, Medium produces 141 FPS with a minimum of 120 and maximum of 162, High produces 109 FPS, and Ultra produces 72 FPS. The 1080p results show that the Arc B580 can deliver high frame rates at lower settings, with the Low preset exceeding the 144 Hz refresh rate common on gaming monitors. The Medium preset's minimum of 120 FPS ensures that even in demanding scenes, the frame rate remains above the 100 FPS threshold, making this a viable competitive setting.

Moving to 2560x1440, the performance drops are significant but expected. Low settings yield 127 FPS average, Medium delivers 89 FPS with a range of 76 to 103, High achieves 69 FPS, and Ultra drops to 46 FPS. The 1440p Medium setting's minimum of 76 FPS is still playable, but the High and Ultra presets may introduce noticeable stutter in fast-paced combat situations. The 1440p Low result of 127 FPS is suitable for high-refresh-rate monitors, though it may not fully saturate a 144 Hz panel.

At 3840x2160, the performance is severely limited. Low settings produce 67 FPS average, Medium delivers 47 FPS with a range of 40 to 54, High achieves only 37 FPS, and Ultra falls to 24 FPS. The 4K results are consistently below the 60 FPS threshold for smooth gameplay, with only the Low preset coming close. The Medium preset's minimum of 40 FPS indicates that significant frame drops can occur, making 4K gaming with this GPU challenging even at lower quality settings.

The data shows a clear pattern where the gap between Low and Ultra settings widens as resolution increases. At 1080p, the difference between Low (200 FPS) and Ultra (72 FPS) is 128 FPS, or 64%. At 1440p, the difference is 81 FPS (63.8%), and at 4K, the difference is 43 FPS (64.2%). This consistency suggests that the GPU's performance scaling with settings is resolution-independent, and the primary bottleneck at higher resolutions is the raw pixel throughput rather than specific setting effects.

Settings Recommendations

Based on the measured FPS data, the optimal settings for different use cases are clear. For competitive play where frame rate is paramount, the 1080p Low preset at 200 FPS average provides the highest possible performance, ensuring that the game runs smoothly on high-refresh-rate monitors and minimizing input lag. This setting is recommended for players who prioritize responsiveness over visual quality.

For a balance between visual fidelity and performance, the 1440p Medium preset at 89 FPS average with a minimum of 76 FPS is the best option. This combination provides a significant visual upgrade over Low settings while maintaining frame rates that are suitable for most gaming monitors. The 1080p Medium setting at 141 FPS is also an excellent choice for players with 144 Hz displays, as it offers better visuals than Low while still exceeding the refresh rate threshold.

The 1080p High preset at 109 FPS is a viable option for players who want improved graphics without sacrificing too much performance, though the 72 FPS at 1080p Ultra indicates that the Ultra preset is not recommended for this GPU. At 1440p, the High preset at 69 FPS is borderline playable, but the Medium preset provides a safer margin for maintaining consistent frame rates. For 4K gaming, no preset is truly recommended, as even the Low setting at 67 FPS is below the ideal threshold, and the Medium preset's minimum of 40 FPS suggests that frame drops will be noticeable.

The data indicates that the Arc B580 is best utilized at 1080p with Medium to High settings, or at 1440p with Low to Medium settings. The Ultra preset should be avoided at all resolutions, as the performance loss from High to Ultra is substantial (34% at 1080p, 33.3% at 1440p, and 35.1% at 4K) without a commensurate visual improvement.

FAQ

Q: What is the maximum average FPS achievable with this CPU and GPU combination in Fortnite?

A: The maximum measured average FPS is 200, achieved at 1920x1080 resolution with Low settings. This is the only preset that reaches or exceeds 200 FPS, with the 1080p Medium setting at 141 FPS being the next highest.

Q: Is this combination suitable for 4K gaming in Fortnite?

A: The data shows that 4K gaming is not recommended with this setup. The highest 4K result is 67 FPS at Low settings, but the Medium preset drops to 47 FPS with a minimum of 40 FPS, and the High preset only achieves 37 FPS. These frame rates are below the 60 FPS threshold for smooth gameplay.

Q: How does the Arc B580 compare to the RTX 2080 in synthetic benchmarks?

A: The Arc B580 has an average benchmark score of 23021, while the RTX 2080 scores 22895, making the B580 0.6% higher. This places them in a similar performance tier, though Fortnite-specific results may vary based on driver optimizations.

Q: What is the best settings preset for a 144 Hz monitor at 1080p?

A: The 1080p Medium preset at 141 FPS average is the best option for a 144 Hz monitor, as it provides a minimum of 120 FPS and ensures that the display's refresh rate is closely matched. The Low preset at 200 FPS surpasses the refresh rate but sacrifices visual quality.

Q: How does the CPU's performance compare to the AMD EPYC 9124?

A: The Intel Core Ultra 7 265 has an average benchmark score of 64640, while the AMD EPYC 9124 scores 65104, making the EPYC 0.7% higher. This difference is negligible in gaming scenarios, and the Core Ultra 7 265 is not the limiting factor in this Fortnite configuration.

Q: Does the GPU's memory bandwidth affect 4K performance?

A: Yes, the 456.0 GB/s bandwidth on the 192-bit bus appears to be a contributing factor to the poor 4K performance. The 4K results show a steeper decline from 1440p compared to the 1080p to 1440p transition, indicating that memory bandwidth becomes a bottleneck at higher resolutions.