Fortnite

Fortnite on the Intel Core i7-12700K with the Intel Arc B580 produces a performance profile that is heavily dictated by resolution and graphics settings. The measured data shows a system that can deliver high refresh rate gameplay at 1080p but quickly becomes constrained as pixel count and visual fidelity increase, with the GPU emerging as the primary limiting factor. This analysis breaks down the measured FPS across all tested configurations, interprets the combo's standing among other tested pairings, and provides actionable settings guidance based strictly on the provided metrics.

Resolution Scaling

The measured frames per second reveal a steep and consistent performance drop as resolution scales from 1920x1080 to 3840x2160. At the Low preset, the average FPS plummets from 200 at 1080p to 127 at 2560x1440, representing a 36.5% reduction, and then falls further to 67 at 4K, a 47.2% drop from the 1440p figure and only a third of the 1080p performance. This scaling pattern suggests that at Low settings, the system is becoming progressively more GPU-bound, with the Arc B580's rendering throughput unable to keep pace with the quadrupling pixel count from 1080p to 4K.

The trend is even more pronounced at higher settings. At the High preset, the average FPS drops from 109 at 1080p to 69 at 1440p (a 36.7% decline) and then to 37 at 4K (a 46.4% decline from 1440p). The Medium preset shows a similar trajectory: 141 at 1080p, 89 at 1440p, and 47 at 4K. The Ultra preset is the most demanding, starting at 72 at 1080p, dropping to 46 at 1440p, and bottoming out at 24 at 4K. Across all settings, the 4K results are consistently less than half the 1080p results, confirming that the GPU's fill rate and memory bandwidth are the dominant constraints at higher resolutions.

The relationship between settings and resolution scaling is also informative. At 1080p, the difference between Low and Ultra is 128 FPS (200 vs. 72), indicating that the CPU has enough headroom to feed the GPU across the entire settings range. However, at 4K, the difference between Low and Ultra narrows to 43 FPS (67 vs. 24), suggesting that the GPU is saturated and settings changes have a relatively smaller absolute impact. This behavior is classic for a system where the graphics card is the bottleneck at high resolutions, while the Core i7-12700K's 12 cores and 20 threads provide ample processing power to avoid becoming the limiting factor even at the lowest settings.

How This Combo Ranks

Among the 3,700 tested CPU-GPU combinations in Fortnite, this pairing of the Intel Core i7-12700K and Intel Arc B580 achieves a combo rank of 2,779. This places the system in approximately the 25th percentile of all tested combos, meaning that three-quarters of the tested pairings deliver higher average frame rates in this specific title. The rank is notably lower than what the individual component benchmarks might suggest, indicating that the combination is not optimally balanced for Fortnite's particular workload.

The CPU itself is a strong performer, sitting in the 84th percentile among all CPUs with an average benchmark score of 35,287. Its nearest rivals include the Intel Core i5-13600T (average score 35,305, delta -0.1%), the Intel Core i7-12700KF (35,365, delta -0.2%), and the Intel Core i7-13700T (35,403, delta -0.3%). These deltas are all within 0.4%, showing that the 12700K is essentially performance-equivalent to its closest competitors in synthetic benchmarks. However, the GPU tells a different story: the Arc B580 sits in the 68th percentile among all GPUs with an average score of 23,021, and its nearest rivals include the AMD Radeon RX 580 2048SP (23,061, delta -0.2%), the NVIDIA GeForce RTX 2080 (22,895, delta 0.6%), and the NVIDIA GeForce RTX 3080 (23,172, delta -0.7%).

The discrepancy between the CPU's high percentile (84) and the combo's low rank (2,779 out of 3,700) suggests that Fortnite is not particularly demanding on the processor side, and the Arc B580's performance is the limiting factor. The measured FPS data supports this: even at 1080p Low, the system only hits 200 FPS, which is far below what a top-tier CPU like the 12700K could theoretically push if paired with a more powerful GPU. The combo rank reflects the reality that many other pairings with weaker CPUs but stronger GPUs achieve higher frame rates in Fortnite, as the game tends to scale more with graphics hardware than with CPU cores.

GPU Role

The Intel Arc B580 is built on the Xe2-HPG architecture and features a base and boost clock of 2670 MHz, with 2,560 shading units, 160 texture mapping units, and 80 raster output units. It also includes 20 ray tracing cores. The GPU is equipped with 12 GB of GDDR6 memory on a 192-bit bus, delivering a bandwidth of 456.0 GB/s. These specifications place the card in the 68th percentile of all GPUs, and its benchmark scores include a Passmark G3D score of 15,748, a Geekbench Vulkan score of 109,672, and a 3DMark Steel Nomad DX12 score of 3,068.

In Fortnite, the GPU's role is clearly dominant, as evidenced by the resolution scaling data. The 12 GB VRAM is unlikely to be a limiting factor at any of the tested settings, as even the Ultra preset at 4K (which yields 24 FPS) is likely constrained by raw compute rather than memory capacity. The memory bandwidth of 456.0 GB/s enables the card to handle the texture streaming and geometry loads at 1440p High (69 FPS) and 4K Low (67 FPS) without catastrophic frame drops, but the performance at 4K Ultra (24 FPS) shows that the GPU's computational resources are exhausted when all visual effects are enabled at maximum resolution.

The measured FPS at 1080p Low (200) suggests that the Arc B580 can push a substantial number of frames when the workload is light, but the card's performance ceiling appears to be around 200 FPS in this title. The drop to 141 FPS at Medium and 109 FPS at High at the same resolution shows a predictable relationship between settings and frame rate, with each step up in visual fidelity costing approximately 30-32 FPS. At 4K, the card struggles to maintain playable frame rates at anything above Low, with Medium at 47 FPS, High at 37 FPS, and Ultra at 24 FPS all falling below the 60 FPS threshold that many competitive players consider minimum.

FAQ

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

A: The highest measured average FPS is 200, achieved at 1920x1080 resolution with the Low settings preset.

Q: How does the combo perform at 4K Ultra settings?

A: At 3840x2160 with Ultra settings, the combo achieves an average FPS of 24, which is the lowest measured result across all tested configurations.

Q: Is the GPU or CPU the bottleneck in this system?

A: The data indicates the GPU is the primary bottleneck, especially at higher resolutions. The CPU is in the 84th percentile among all CPUs, while the combo ranks only 2,779th out of 3,700, and resolution scaling shows steep FPS drops consistent with GPU limitations.

Q: What is the difference between 1080p and 1440p performance at High settings?

A: At High settings, the average FPS drops from 109 at 1920x1080 to 69 at 2560x1440, a reduction of 40 FPS or approximately 36.7%.

Q: Does the 12 GB VRAM cause any issues at 4K?

A: The measured data shows playable frame rates at 4K Low (67 FPS) and 4K Medium (47 FPS), suggesting VRAM capacity is sufficient. The performance drop at 4K Ultra (24 FPS) is more likely due to compute limitations than memory constraints.

Q: How does this combo rank compared to other tested combinations?

A: The combo ranks 2,779th out of 3,700 tested combinations in Fortnite, placing it in the lower 25% of all tested pairings.

Settings Recommendations

Based on the measured FPS data, the optimal settings depend heavily on the target resolution and desired frame rate. For competitive play at 1920x1080, the Low preset delivers 200 FPS, which is ideal for high refresh rate monitors. The Medium preset at 141 FPS is also viable for competitive play and offers improved visual quality, while the High preset at 109 FPS remains above the 60 FPS threshold and provides a good balance for most players. The Ultra preset at 72 FPS is playable but may not be ideal for fast-paced competitive scenarios.

At 2560x1440, the Low preset at 127 FPS is the only setting that exceeds 100 FPS, making it the best choice for high refresh rate gaming at this resolution. The Medium preset at 89 FPS is a solid alternative for those who prioritize visual quality over maximum frame rate, while the High preset at 69 FPS is still playable and offers good detail. The Ultra preset at 46 FPS is below the 60 FPS threshold and may result in noticeable stutter during intense combat.

At 3840x2160, the Low preset at 67 FPS is the only setting that achieves a playable frame rate near 60 FPS. The Medium preset at 47 FPS is borderline playable but may feel sluggish, while the High preset at 37 FPS and Ultra preset at 24 FPS are not recommended for gameplay. For 4K users, the Low preset is the only viable option, and players seeking higher quality at 4K would need to consider a more powerful GPU.

CPU Role

The Intel Core i7-12700K is a 12-core, 20-thread processor based on the Alder Lake architecture, with a base clock of 3.60 GHz and a boost clock of 5.00 GHz. It has a 25 MB shared L3 cache and supports DDR4 and DDR5 memory in a dual-channel configuration. The CPU's benchmark results are strong, including a Cinebench R23 multi-core score of 19,784, a single-core score of 1,850.5, and a Geekbench multi-core score of 15,790. It sits in the 84th percentile of all CPUs with an average benchmark score of 35,287, and its nearest rivals are within 0.4% of its performance.

In Fortnite, the CPU's role appears to be secondary to the GPU. The measured FPS at 1080p Low is 200, which is a high number but not indicative of CPU bottlenecking, as the frame rate does not increase dramatically at lower settings. The fact that the combo ranks 2,779th out of 3,700 suggests that the CPU is not holding back the system in most scenarios, as many weaker CPUs paired with stronger GPUs achieve higher frame rates. The 12 cores and 20 threads provide ample headroom for Fortnite's engine, which is known to be more GPU-dependent, and the high boost clock of 5.00 GHz ensures strong single-threaded performance for game logic and physics.

The CPU's 3DMark scores further demonstrate its capability: 9,276 for 16 threads, 7,202 for 8 threads, and 1,043 for single-thread. These results indicate a processor that can handle both multi-threaded workloads and latency-sensitive single-threaded tasks. However, in Fortnite, the data suggests that the CPU is rarely the limiting factor, as the FPS drops are almost entirely correlated with resolution increases and settings changes, both of which primarily affect GPU load.

Measured FPS Breakdown

The full set of measured frame rates provides a comprehensive picture of the combo's performance. At 1920x1080, the average FPS ranges from 200 at Low to 72 at Ultra. The Medium preset shows an average of 141 FPS with a minimum of 120 and a maximum of 162. The High preset averages 109 FPS, and the Ultra preset averages 72 FPS.

At 2560x1440, the Low preset averages 127 FPS, the Medium preset averages 89 FPS with a range of 76 to 103, the High preset averages 69 FPS, and the Ultra preset averages 46 FPS. The drop from 1080p to 1440p is consistent across all settings, averaging approximately 36-40% reduction.

At 3840x2160, the Low preset averages 67 FPS, the Medium preset averages 47 FPS with a range of 40 to 54, the High preset averages 37 FPS, and the Ultra preset averages 24 FPS. The 4K results show a dramatic reduction compared to 1440p, with the High and Ultra presets falling below 40 FPS, making them unsuitable for smooth gameplay.

The only settings that provide both a minimum and maximum FPS are the Medium presets at all three resolutions. At 1080p Medium, the range is 120-162 FPS; at 1440p Medium, it is 76-103 FPS; and at 4K Medium, it is 40-54 FPS. These ranges indicate that the Medium preset experiences moderate frame time variance, which is to be expected given the dynamic nature of Fortnite's battle royale environments. The lack of min/max data for other presets suggests that the measurements were either consistent or not captured, but the average FPS values are sufficient to draw conclusions about the relative performance across settings and resolutions.