Fortnite

Fortnite with the Intel Core Ultra 7 265K and Intel Arc B390 presents a stark study in component imbalance. The data reveals a configuration where a top-tier, high-core-count desktop processor is paired with an integrated graphics solution that ranks in the 9th percentile of all GPUs. The benchmark results show a system that can achieve playable frame rates at 1080p with lower settings but quickly becomes constrained by the graphics subsystem as resolution and visual fidelity increase. The combo ranks 2417th out of 2740 tested combinations, placing it in the bottom 12% of all pairings, which suggests that the GPU is the definitive bottleneck in almost every scenario measured.

Resolution Scaling

The measured FPS data shows a severe and consistent penalty as resolution scales from 1920x1080 to 3840x2160. At Low settings, the average frame rate drops from 115 FPS at 1080p to 73 FPS at 1440p, a 36.5% reduction, and then falls further to 39 FPS at 4K, which is a 66.1% decrease from the 1080p baseline. This precipitous drop indicates that the rendering pipeline is almost entirely dependent on the GPU's fill rate and pixel throughput, which are severely limited by the Intel Arc B390's specifications of 24 ROPs and a 60.00 GPixel/s pixel rate.

The scaling pattern is consistent across all settings presets. At High settings, the average FPS goes from 63 at 1080p to 40 at 1440p (a 36.5% drop) and then to 21 at 4K (a 66.7% drop from 1080p). The Medium preset follows a similar trajectory, moving from 81 FPS at 1080p, to 51 at 1440p, and 27 at 4K. The consistency of these percentage drops across different quality presets is telling; it suggests that the limiting factor is not the complexity of the shaders or textures but rather the raw number of pixels being processed. The GPU's 7.680 TFLOPS of FP32 performance and 120.0 GTexel/s texture rate are simply insufficient for the workload at higher resolutions.

What is particularly revealing is the performance collapse at the Ultra preset. At 4K Ultra, the average FPS falls to 14, which is a 65.9% drop from the already low 41 FPS at 1080p Ultra. This demonstrates that the combination of high resolution and maximum graphical features creates a computational load that the Arc B390 cannot handle, resulting in a slideshow-like experience. The data implies that for this specific hardware pairing, resolution scaling is not a smooth curve but rather a cliff edge, where each step up in resolution disproportionately impacts the frame rate due to the GPU being the primary constraint. The system's performance is dictated by pixel count, not CPU capability.

CPU Role

The Intel Core Ultra 7 265K is an exceptionally powerful processor, featuring 20 cores and 20 threads with a boost clock of 5.50 GHz. Its benchmark scores are impressive, with a Cinebench R23 multi-core score of 35850 and a Geekbench single-core score of 2713. The CPU sits in the 94th percentile of all processors, and its nearest rivals include the Intel Core i7-14700KF, which it outperforms by 1%, and the AMD Ryzen 7 9700F, which it leads by 1.3%. This is a component designed for heavy multi-threaded workloads, with a Passmark multithread score of 58594.

However, in this Fortnite configuration, the CPU's role is largely passive. The data shows that the CPU is not the limiting factor at any resolution or setting. This is evident from the FPS scaling; if the CPU were the bottleneck, we would expect to see frame rates remain relatively flat across different resolutions, as the CPU's workload (draw calls, game logic) does not increase proportionally with resolution. Instead, we observe a dramatic FPS drop when moving from 1080p to 4K, which is the classic signature of a GPU-bound scenario.

The CPU's massive headroom is wasted in this pairing. With 20 threads available, Fortnite is unlikely to utilize all of them, and the game's performance is being throttled by the integrated GPU's inability to keep up. The data suggests that the 265K is operating well below its potential, with the Arc B390 acting as a hard ceiling on performance. The 30 MB of shared L3 cache and high clock speeds are irrelevant when the GPU can only manage 21 FPS at 4K High. This configuration highlights a fundamental mismatch where a top-tier CPU is paired with a 9th percentile GPU, ensuring that the CPU's computational power remains largely untapped in this gaming scenario.

How This Combo Ranks

The combo's rank in this game is 2417 out of 2740 tested combinations. This places it in the bottom 11.8% of all CPU-GPU pairings tested for Fortnite. This rank is a direct consequence of the GPU's performance, as the Intel Arc B390's average benchmark score of 1482 places it in the 9th percentile of all GPUs. Its nearest rivals in the GPU benchmark are the NVIDIA GeForce GT 520MX and the GeForce 800M, with the Arc B390 scoring 1.3% and 1.5% higher, respectively. These are legacy, low-end mobile parts, indicating the performance tier the Arc B390 occupies.

The contrast between the CPU and GPU rankings is stark. The 265K is in the 94th percentile of CPUs, while the B390 is in the 9th percentile of GPUs. This massive disparity means that the combo rank is almost entirely determined by the GPU's weakness. The CPU's high percentile rank does nothing to boost the combo's position in the rankings because the GPU cannot translate CPU capability into frame rate. The data implies that if this CPU were paired with a more capable GPU, the combo rank would be dramatically higher, but with the current pairing, the system is firmly anchored to the bottom of the performance charts for this game. The rank reflects the reality of the gaming experience: the system is severely underpowered for the task, and the CPU's strength is a non-factor in the final score.

Measured FPS Breakdown

The measured FPS data provides a complete picture of the system's capabilities across all settings and resolutions.

At 1920x1080, the system shows its best performance. With Low settings, it achieves an average of 115 FPS, which is playable. Medium settings yield 81 FPS, with a minimum of 69 and maximum of 93 FPS, indicating decent frame pacing. High settings drop to 63 FPS, which is still playable. However, Ultra settings bring the average down to 41 FPS, which is a significant drop and may feel less smooth.

At 2560x1440, the performance takes a substantial hit. Low settings average 73 FPS, which is a 36.5% drop from 1080p Low. Medium settings average 51 FPS, with a minimum of 44 and maximum of 59 FPS. High settings fall to 40 FPS, and Ultra settings are nearly unplayable at 26 FPS.

At 3840x2160, the system struggles to maintain playable frame rates. Low settings average 39 FPS, which is below the threshold for smooth gameplay. Medium settings average 27 FPS, with a minimum of 23 FPS. High settings drop to 21 FPS, and Ultra settings are a non-starter at 14 FPS.

The data shows a clear hierarchy. The only configuration that provides a consistently smooth experience is 1080p with Low or Medium settings. 1080p High is borderline, and any combination involving 1440p or 4K, or the Ultra preset, results in frame rates that are below what is generally considered acceptable for a fast-paced Battle Royale game. The minimum FPS values recorded for the Medium preset at all resolutions (69 at 1080p, 44 at 1440p, 23 at 4K) also show that even the average frame rates can be subject to dips, which can be disruptive in competitive gameplay.

GPU Role

The Intel Arc B390 is an integrated GPU based on the Xe3-LPG architecture, built on a 3 nm process. Its specifications are extremely limited for gaming, with 1536 shading units, 48 TMUs, and only 24 ROPs. It has a base clock of 300 MHz and a boost clock of 2500 MHz. The memory configuration is "System Shared," which means it uses the system's DDR5 memory, and its bandwidth is "System Dependent." This is a critical weakness, as the GPU does not have its own dedicated high-bandwidth VRAM, and its performance is tied to the system memory's speed and latency.

The GPU's performance in 3DMark Steel Nomad is a score of 1482, which places it in the 9th percentile of all GPUs. Its nearest rivals are the NVIDIA GeForce GT 520MX and GeForce 800M, which are extremely old and weak parts. This ranking confirms that the Arc B390 is not intended for gaming, and its performance in Fortnite reflects this. The data shows that the GPU is the single point of failure in this system. The 7.680 TFLOPS of FP32 compute is insufficient for the demands of Fortnite at higher resolutions and settings.

The impact of the shared memory is evident in the results. With a "System Shared" memory type and system-dependent bandwidth, the GPU is likely contending with the CPU for memory access. This can lead to stuttering and inconsistent frame times, which the data hints at with the variation between average, min, and max FPS at Medium settings. The GPU's 24 ROPs and 60.00 GPixel/s pixel rate are the primary limiters for resolution scaling, as they dictate how quickly pixels can be drawn to the screen. This is why the FPS drops so precipitously as resolution increases. The GPU is simply not equipped to handle the pixel throughput required for 1440p or 4K gaming.

FAQ

Q: What is the best resolution for this system?

A: The data shows that 1920x1080 is the only resolution where the system achieves consistently playable frame rates. At 1080p Low, the average FPS is 115, and at Medium it is 81. At 1440p, the average FPS drops below 73 even at Low settings, and at 4K, the average FPS is below 40 at all settings.

Q: Is the Intel Core Ultra 7 265K the reason for the low frame rates?

A: No. The CPU is in the 94th percentile of all processors, but the combo ranks 2417th out of 2740. The FPS drops significantly with resolution, which indicates the GPU is the bottleneck. The CPU has ample power, but the integrated GPU cannot deliver the frames.

Q: How does the Intel Arc B390 compare to its nearest GPU rivals?

A: The Arc B390 has an average benchmark score of 1482, which is 1.3% higher than the NVIDIA GeForce GT 520MX and 1.5% higher than the GeForce 800M. These are all very low-performing GPUs, placing the B390 in the 9th percentile.

Q: What is the performance difference between Low and Ultra settings at 1080p?

A: At 1920x1080, the average FPS at Low settings is 115, while at Ultra settings it is 41. This represents a 64.3% decrease in performance when moving from the lowest to the highest quality preset.

Q: Can this system handle Fortnite at 4K?

A: The measured data indicates it cannot. At 3840x2160, the highest average FPS recorded is 39 at Low settings, which drops to 14 at Ultra settings. These frame rates are not suitable for smooth gameplay.

Q: Is the CPU's performance headroom being fully utilized?

A: No. The data shows the CPU is not the limiting factor. If it were, frame rates would be similar across resolutions. Since FPS drops drastically with resolution, the GPU is the limiting component, and the CPU's power is largely unused in this specific game.

Settings Recommendations

Based on the measured FPS data, the optimal experience for this system is at 1920x1080 resolution. At this resolution, the Low preset delivers an average of 115 FPS, which is ideal for a fast-paced game like Fortnite, providing a smooth and responsive experience. The Medium preset is also a strong choice, with an average of 81 FPS and a minimum of 69 FPS, offering a visual quality upgrade while still maintaining a playable frame rate.

The High preset at 1080p is borderline, with an average of 63 FPS. This is playable, but the lower minimum FPS could lead to occasional stutters in busy scenes. The Ultra preset at 1080p, with an average of 41 FPS, is not recommended for competitive play, as the frame rate is likely to feel inconsistent and unresponsive.

For users who prioritize visual fidelity over frame rate, the 1440p Medium preset with an average of 51 FPS might be acceptable for casual play, but it is a significant compromise. However, the data strongly suggests that 1080p with Low or Medium settings is the only configuration that provides a consistently smooth and competitive gaming experience. Higher resolutions or the Ultra preset should be avoided, as the frame rates fall below playable thresholds, and the minimum FPS values indicate potential for severe frame pacing issues. The best experience is clearly at 1080p with lower settings, where the system can leverage its CPU headroom to maintain high frame rates, even if the GPU is the ultimate constraint.