Pc Building Simulator

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

The measured frame rates across resolutions reveal a classic GPU-bound scaling pattern, but with some notable deviations that hint at where the bottleneck shifts. Starting at 1920x1080 with Low settings, the combo delivers 111.1 FPS. Moving to 2560x1440 at the same settings drops performance to 69.9 FPS, a reduction of roughly 37%. The jump to 3840x2160 further reduces the average to 37.2 FPS, another 47% decline from the 1440p figure. This consistent, steep drop-off as pixel count increases is the signature of a graphics card operating at its limits — the AMD Radeon RX 570's 4 GB GDDR5 frame buffer and 224.0 GB/s bandwidth are being saturated by the growing resolution.

However, the scaling behavior changes when settings are raised. At High settings, the 1080p result is 52.9 FPS, which falls to 31.3 FPS at 1440p — a 41% drop. But from 1440p to 4K, the decline is only from 31.3 to 18.3 FPS, a 42% reduction. The Ultra preset shows an even more compressed range: 51.8 FPS at 1080p, 34.4 FPS at 1440p, and 14.6 FPS at 4K. The fact that High and Ultra produce nearly identical 1080p scores (52.9 vs 51.8) suggests that at lower resolutions, the CPU is beginning to exert influence, capping performance before the GPU can fully stretch its legs.

The data implies that at 1080p, the Ryzen 5 8400F with its 6 cores and 12 threads is sufficient to feed the GPU, but the RX 570's raw throughput becomes the limiting factor as resolution climbs. The gap between Low and Medium at 4K (37.2 vs 24.1 FPS) versus the gap at 1080p (111.1 vs 78.0 FPS) shows that the GPU's pixel throughput — 39.81 GPixel/s — is the primary constraint at higher resolutions. This is a GPU-bound scenario at 4K, while 1080p leans more toward a balanced workload where both components matter.

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

The RX 570's specifications paint a clear picture of why it struggles at higher resolutions. With 4 GB of GDDR5 memory on a 256-bit bus, the card offers 224.0 GB/s of bandwidth. The base clock of 1168 MHz and boost clock of 1244 MHz drive 2048 shading units, producing 5.095 TFLOPS of FP32 compute. These figures are modest by modern standards, and the benchmark results reflect that: the GPU's percentileVsAllGpus of 74 places it above most cards, but its nearest rivals include the NVIDIA GeForce RTX 5060, which scores 30109 versus the RX 570's 30158 — a deltaPct of only 0.2%, meaning these are statistically equivalent in aggregate benchmarks.

In Pc Building Simulator, a simulation title that likely emphasizes system building logic over photorealistic rendering, the VRAM capacity becomes critical. At 4K Ultra, the average FPS of 14.6 indicates the card is struggling to manage both geometry and texture data within its 4 GB allocation. The drop from Medium (24.1 FPS) to Ultra (14.6 FPS) at 4K is a 39% reduction, suggesting that the Ultra preset's additional texture quality and effects are pushing the memory subsystem past its comfortable operating point.

The GPU's 14 nm process node from GlobalFoundries, with 5,700 million transistors on a 232 mm² die, explains its thermal and power characteristics — a 150 W TDP requiring a 450 W suggested PSU. This is an end-of-life product, released in 2017, and the data shows its age through the steep resolution scaling penalties. The 3DMark Steel Nomad DX12 score of 880 reinforces that this is a DirectX 12-capable but not DirectX 12-optimized architecture, with GCN 4.0 lacking the dedicated ray tracing or tensor cores found in newer designs.

FAQ

Q: Does the RX 570 maintain playable frame rates at 1080p in Pc Building Simulator?

A: Yes, at 1920x1080 with Low settings, the combo achieves 111.1 FPS. However, at Ultra settings, the average drops to 51.8 FPS, which is still above the 30 FPS threshold but indicates that high-quality presets require compromises.

Q: What is the performance difference between Low and Ultra settings at 1440p?

A: At 2560x1440, Low settings produce 69.9 FPS, while Ultra produces 34.4 FPS. This represents a 51% reduction in frame rate when moving from the minimum to maximum quality preset.

Q: Is the CPU or GPU the main bottleneck at 4K resolution?

A: The data suggests the GPU is the limiting factor. At 3840x2160, even Low settings only yield 37.2 FPS, and Ultra drops to 14.6 FPS. The RX 570's 4 GB VRAM and 224.0 GB/s bandwidth are insufficient for the pixel workload at this resolution.

Q: How does the Ryzen 5 8400F compare to its closest rivals in CPU benchmarks?

A: The 8400F has an avgBenchmarkScore of 25064, placing it in the 82nd percentile of all CPUs. Its nearest rival, the AMD Ryzen 7 2700X, scores 25057 with a deltaPct of 0%, making them functionally identical in aggregate performance.

Q: Can this combo handle 1440p gaming acceptably?

A: At Medium settings, 2560x1440 delivers 45.9 FPS, which is playable. High settings yield 31.3 FPS, which is borderline, while Ultra at 34.4 FPS is surprisingly similar to High, suggesting a settings scaling quirk in this title.

Q: What is the launch MSRP of the RX 570, and does it affect the analysis?

A: The RX 570 has a launch MSRP of 169 USD. This historical pricing is noted but does not factor into the performance analysis, which focuses solely on measured FPS data.

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

At 1920x1080, the four settings produce a clear hierarchy: Low leads with 111.1 FPS, followed by Medium at 78.0 FPS, High at 52.9 FPS, and Ultra at 51.8 FPS. The near-identical High and Ultra scores suggest that the Ultra preset adds minimal graphical load beyond High, or that the CPU prevents further gains. The 33.1 FPS gap between Low and Medium is substantial, indicating that Medium introduces significant visual effects that tax the GPU.

Moving to 2560x1440, the ordering remains consistent: Low at 69.9 FPS, Medium at 45.9 FPS, High at 31.3 FPS, and Ultra at 34.4 FPS. Notably, Ultra outperforms High by 3.1 FPS, which is unusual and suggests either a measurement anomaly or that the Ultra preset optimizes certain rendering paths. The spread from Low to Ultra is 35.5 FPS, narrower than at 1080p, showing that resolution scaling compresses the settings range.

At 3840x2160, the results are: Low at 37.2 FPS, Medium at 24.1 FPS, High at 18.3 FPS, and Ultra at 14.6 FPS. The decline from Low to Ultra is 22.6 FPS, a 61% reduction. The progression is monotonic here, unlike at 1440p, indicating that at 4K, the GPU is so constrained that every additional setting increment costs measurable performance.

Comparing across resolutions, Low settings show the steepest scaling curve (111.1 → 69.9 → 37.2), while Ultra shows the flattest (51.8 → 34.4 → 14.6). This implies that at Ultra, the GPU is already near its limit even at 1080p, so the relative drop to 4K is less dramatic in percentage terms but still results in unplayable frame rates.

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

The AMD Ryzen 5 8400F is a Zen 4 architecture processor built on TSMC's 4 nm process, featuring 6 cores and 12 threads. Its base clock of 4.20 GHz and boost clock of 4.70 GHz, combined with a 65 W TDP, make it a power-efficient choice for gaming. The CPU's benchmark results are impressive: a Cinebench R23 multicore score of 20851 and a single-core score of 2943, placing it in the 82nd percentile of all CPUs.

In Pc Building Simulator, a simulation title that likely involves complex system-building logic and possibly physics calculations, the CPU's multithreaded performance is relevant. The PassMark multithread score of 24530 and the 3DMark 16-thread score of 6091 indicate strong parallel processing capabilities. However, the game's frame rates at 1080p Ultra (51.8 FPS) versus 1080p Low (111.1 FPS) suggest that the CPU is not the primary bottleneck at lower resolutions — the GPU's 5.095 TFLOPS compute is the limiting factor.

The CPU's nearest rivals include the AMD Ryzen 7 2700X with an avgScore of 25057 and a deltaPct of 0%, meaning the 8400F and 2700X perform identically in aggregate benchmarks. The Ryzen 5 7500F scores 24993 with a deltaPct of 0.3%, slightly below the 8400F. These comparisons show that the 8400F is well-positioned in the mid-range CPU market, but its performance in this game is constrained by the GPU pairing.

The 16 MB shared L3 cache and 83.2 GB/s memory bandwidth provide adequate data throughput for simulation workloads. The 12 threads handle multitasking well, and the 4 nm process node ensures thermal headroom. In this specific game, the CPU's role appears secondary to the GPU, as evidenced by the minimal FPS difference between High and Ultra at 1080p (1.1 FPS), which would be larger if the CPU were the limiting factor.

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

Analyzing the measured FPS data, the optimal settings depend on the target resolution. At 1920x1080, Medium settings at 78.0 FPS provide a smooth experience with likely improved visual quality over Low's 111.1 FPS. The jump to High (52.9 FPS) or Ultra (51.8 FPS) costs over 25 FPS for marginal visual gains, making Medium the sweet spot for 1080p.

At 2560x1440, Medium at 45.9 FPS is the only preset that maintains frame rates above 40 FPS. Low at 69.9 FPS is playable but sacrifices visual fidelity, while High (31.3 FPS) and Ultra (34.4 FPS) fall below the 35 FPS threshold that many players consider minimum for smooth gameplay. The data suggests that Medium is the recommended preset for 1440p, as it balances quality and performance.

At 3840x2160, no preset achieves playable frame rates. Even Low at 37.2 FPS is borderline, and Medium (24.1 FPS), High (18.3 FPS), and Ultra (14.6 FPS) are all below 25 FPS. The recommendation is to avoid 4K with this combo, as the RX 570's 4 GB VRAM and 224.0 GB/s bandwidth are insufficient for this resolution.

The overall best experience across all resolutions is 1080p Medium at 78.0 FPS, which offers a 41% improvement over High settings while maintaining frame rates well above the 60 FPS target. For players prioritizing visual quality, 1080p Ultra at 51.8 FPS is acceptable, but the 0.9 FPS difference from High makes High the more sensible choice.

How This Combo Ranks — use comboRankInGame vs other tested combos

The AMD Ryzen 5 8400F + AMD Radeon RX 570 combination ranks 1698 out of 1769 tested combos in Pc Building Simulator. This places it in the bottom 4% of all tested configurations, which is a surprisingly low position given the individual component strengths. The CPU's 82nd percentile ranking and the GPU's 74th percentile ranking would suggest a mid-tier combo, but the game's specific demands appear to penalize this pairing.

The rank of 1698 out of 1769 indicates that 1708 other combos perform better in this game, leaving only 71 combos that are slower. This poor ranking is likely due to the RX 570's 4 GB VRAM capacity, which is insufficient for the game's higher resolution presets. The combo's measured FPS at 1080p Ultra (51.8 FPS) is decent, but at 4K Ultra (14.6 FPS), it falls far below playable thresholds.

Comparing to the nearest rival combos, the GPU's nearest rival, the NVIDIA GeForce RTX 5060, scores 30109 in aggregate benchmarks versus the RX 570's 30158 — a deltaPct of 0.2%, making them statistically equivalent. However, the RTX 5060 would likely have more VRAM and newer architecture, which could explain why the combo ranks poorly despite the similar aggregate score.

The comboRankInGame data suggests that Pc Building Simulator is particularly sensitive to GPU memory capacity and raw pixel throughput. The RX 570's 39.81 GPixel/s pixel rate, while respectable for its era, cannot keep up with the demands of modern simulation titles at high resolutions. The 1698th rank serves as a warning to users that this pairing, while capable at 1080p Low-to-Medium settings, does not provide headroom for future-proofing or higher resolution gaming.