Steamworld Build

Steamworld Build, a city builder from late 2023, is not typically the first title that comes to mind for high-end hardware stress testing. However, the measured data for the Intel Core i5-10400F paired with the NVIDIA GeForce RTX 5080 reveals a configuration that is heavily skewed toward GPU performance, with the CPU acting as a significant bottleneck at lower resolutions. The data shows a system capable of very high frame rates, but one where the scaling between settings and resolutions tells a clear story about component limitations.

Resolution Scaling

The frame rate progression from 1080p to 4K demonstrates a classic case of a CPU-bound system at lower resolutions transitioning to a GPU-bound one at higher ones. At 1920x1080 with Ultra settings, the combo achieves an average of 158.2 FPS. Moving to 2560x1440 Ultra drops the average to 102.7 FPS, a reduction of approximately 35%. The subsequent jump to 3840x2160 Ultra yields 56.4 FPS, another substantial decrease of roughly 45%. This pattern indicates that the CPU is unable to feed the GPU enough data at 1080p, limiting the maximum frame rate, but as pixel count increases, the GPU's workload becomes the limiting factor.

The scaling between Low and Ultra settings further illustrates this dynamic. At 1080p, the difference between Low (225.4 FPS) and Ultra (158.2 FPS) is 67.2 FPS, a 30% drop. This relatively modest gap suggests that even at Low settings, the CPU is preventing the GPU from reaching its full potential. In contrast, at 4K, the same settings comparison shows a much larger performance penalty, with Low producing 141.2 FPS and Ultra producing 56.4 FPS, a 60% reduction. The data clearly indicates that the RTX 5080's immense rendering power is being held back by the six-core Comet Lake processor at lower resolutions and settings.

GPU Role

The NVIDIA GeForce RTX 5080 is the dominant component in this pairing, and its specifications make it clear why it performs so well in Steamworld Build. The card features 16 GB of GDDR7 memory on a 256-bit bus, providing a bandwidth of 960.0 GB/s. This ample memory capacity and bandwidth are well-suited for a city builder, which often needs to handle large textures and complex scene data as the city grows. The GPU's base clock of 2295 MHz and boost clock of 2617 MHz contribute to its raw compute power, which is further emphasized by its 10752 shading units and 112 ROPs.

The card's 56.28 TFLOPS of FP32 performance confirms its capability, and benchmark results confirm its high standing. The RTX 5080 scores 36565 in the Passmark G3D test and 8637 in the 3DMark Steel Nomad DX12 test, placing it in the 89th percentile of all GPUs. These numbers indicate a top-tier graphics solution. The fact that the 4K Ultra preset still manages an average of 56.4 FPS, despite the CPU bottleneck, shows that the GPU is doing the heavy lifting. The measured data implies that at 4K, the RTX 5080 is the primary driver of performance, with the CPU bottleneck becoming less relevant as the resolution increases.

CPU Role

The Intel Core i5-10400F is a 6-core, 12-thread processor based on the Comet Lake architecture, with a base clock of 2.90 GHz and a boost clock of 4.30 GHz. While this CPU was a solid mid-range option at its release in 2020, its age is apparent in this modern pairing. Its benchmark scores, such as 10297 in Cinebench R23 multi-core and 1453 in single-core, place it in the 73rd percentile of all CPUs. This is a respectable score, but it is far below the performance tier of the RTX 5080.

The CPU's limitations are most evident in the resolution scaling data. At 1080p, the frame rate ceiling appears to be around 225 FPS on Low settings, but the GPU is capable of much more. The data shows that even at 4K Low, the system produces 141.2 FPS, which is only 10% lower than the 1080p High result of 184.8 FPS. This suggests that the CPU is still providing enough frames to keep the GPU busy at 4K Low, but the gap between 1080p and 4K Ultra (158.2 FPS vs 56.4 FPS) is almost entirely due to the GPU's workload. The 12 MB of shared L3 cache and DDR4 memory support with 42.7 GB/s bandwidth are adequate for a city builder, but they do not allow the CPU to overcome the fundamental clock speed and architectural limitations of the older 14 nm process node.

Measured FPS Breakdown

The measured FPS data provides a complete picture of the combo's performance across all settings and resolutions. At 3840x2160, the Ultra preset is the most demanding, yielding an average of 56.4 FPS, which is just below the 60 FPS target. High settings at 4K produce a much more playable 80.8 FPS, while Medium reaches 106.8 FPS. Low settings at 4K are the outlier, producing 141.2 FPS, which is surprisingly high and indicates minimal CPU limitation at this resolution.

At 2560x1440, the performance is uniformly strong. Ultra settings average 102.7 FPS, High delivers 150.3 FPS, Medium hits 179 FPS, and Low reaches 196.4 FPS. These numbers show that the combo is well-balanced at 1440p, with no single component creating a severe bottleneck. The 1080p results are the most revealing about the CPU's limitations. Ultra averages 158.2 FPS, High delivers 184.8 FPS, Medium produces 204.2 FPS, and Low achieves 225.4 FPS. The incremental gains from lowering settings at 1080p are smaller than at higher resolutions, confirming that the CPU is the limiting factor here.

How This Combo Ranks

In the database of tested combinations, this specific pairing of the Intel Core i5-10400F and NVIDIA GeForce RTX 5080 holds the rank of 341 out of 1730 total combos. This places it in the top 20% of all tested configurations for Steamworld Build. The rank suggests that while the system is not the absolute fastest, it is still a high-performing combination for this game. The GPU's raw power is largely responsible for this strong showing, but the CPU's limitations prevent the combo from climbing higher.

The CPU's nearest rivals in terms of average benchmark score include the AMD EPYC 7552, which is 0.4% faster, and the AMD Ryzen 3 7320C, which is 0.8% slower. These small deltas indicate that the i5-10400F is performing at its expected level. The GPU is similarly well-positioned, with rivals like the Intel Arc A570M being 1.6% slower and the Intel Arc Pro A60 being 1.9% faster. This data confirms that the components are not outliers in their individual performance, but the combination's rank is a result of the synergy between them, or lack thereof.

Settings Recommendations

Based on the measured data, the optimal settings for this combo depend heavily on the target resolution. For 4K gaming, the High preset is the clear recommendation, as it delivers an average of 80.8 FPS, which is smooth and well above the 60 FPS threshold. The Ultra preset at 4K is not recommended, as the 56.4 FPS average is likely to be noticeable in a city builder where camera movement and constant UI updates require consistent frame times.

At 1440p, the Ultra preset is the best choice, providing an average of 102.7 FPS. This offers the best visual fidelity without sacrificing smoothness. The High preset at 1440p is also excellent at 150.3 FPS, but the marginal difference in visual quality is not worth the 30% drop in frame rate. For 1080p, the Ultra preset is recommended, as the 158.2 FPS average is more than enough for a responsive experience. Since the CPU is the limiting factor at this resolution, lowering settings to High or Medium yields only a modest FPS increase, making Ultra the most sensible choice for visual quality.

FAQ

Q: Is the Intel Core i5-10400F a bottleneck for the RTX 5080 in Steamworld Build?

A: Yes, the data indicates a significant CPU bottleneck at lower resolutions. At 1080p, the frame rate scales poorly with settings reductions, suggesting the CPU limits the maximum FPS. At 4K, the bottleneck is less pronounced, as the GPU becomes the limiting factor.

Q: Can this combo run Steamworld Build at 4K with high settings?

A: Yes, the measured data shows an average of 80.8 FPS at 3840x2160 with High settings. This is comfortably above the 60 FPS target for smooth gameplay.

Q: What is the best resolution for this combo to avoid CPU limitations?

A: The data shows that at 2560x1440, the system is well-balanced, with no severe bottleneck. The Ultra preset at 1440p achieves 102.7 FPS, indicating good utilization of both components.

Q: How does the RTX 5080's memory bandwidth compare to the CPU's memory bandwidth?

A: The GPU has a memory bandwidth of 960.0 GB/s, while the CPU's dual-channel DDR4 support provides 42.7 GB/s. This massive difference highlights the GPU's capability for high-resolution textures and assets.

Q: What is the ranking of this combo among all tested systems for this game?

A: The combo ranks 341 out of 1730 tested combinations, placing it in the top 20% of all systems for Steamworld Build.

Q: Should I use Ultra settings at 1080p or High settings at 1440p for this combo?

A: According to the data, the 1080p Ultra preset delivers 158.2 FPS, while the 1440p High preset delivers 150.3 FPS. The 1440p High option offers a higher resolution with a nearly identical frame rate, making it the better choice for visual clarity.