Don't Starve Together

Don't Starve Together is a game that scales dramatically across resolutions and settings with this Intel Core i5-9400 + NVIDIA GeForce RTX 3080 pairing. The measured data reveals a system that is capable of very high frame rates at 1080p and 1440p, but which begins to show its limits when pushed to 4K Ultra. The performance curve suggests a shift in bottleneck behavior as the resolution increases, moving from a CPU-bound scenario at lower resolutions to a GPU-bound one at higher ones, with the RTX 3080's raw power ultimately dictating the ceiling at 4K.

Resolution Scaling

The FPS drop from 1080p to 4K is substantial and tells a clear story about which component is driving performance. At High settings, the average frame rate falls from 165.3 FPS at 1920x1080 to 123.5 FPS at 2560x1440, and then to 70.6 FPS at 3840x2160. This represents a 57% reduction in average FPS from 1080p to 4K. The scaling is even more pronounced at Ultra settings, where the frame rate drops from 139.8 FPS at 1080p to 100.1 FPS at 1440p, and finally to 56.4 FPS at 4K — a 60% decrease.

The data implies that at 1080p, the Intel Core i5-9400's six cores and six threads are likely the limiting factor, as the RTX 3080 cannot fully stretch its legs. The relatively modest drop from 1080p to 1440p at High settings (165.3 to 123.5 FPS) suggests the CPU is still holding things back. However, the steep decline from 1440p to 4K (123.5 to 70.6 FPS) indicates the NVIDIA GeForce RTX 3080 is now the primary constraint, as the pixel count quadruples and the GPU's 10 GB of GDDR6X memory and 760.3 GB/s bandwidth are pushed harder. The game becomes increasingly GPU-bound as resolution climbs, which is typical for a visually simple title that relies more on CPU logic for its simulation.

How This Combo Ranks

Within the benchmark database, this specific CPU-GPU combination ranks 664th out of 1667 tested combos for Don't Starve Together. This places it in the upper 40th percentile of all combinations, indicating a solidly above-average pairing for this title. The combination's ranking is likely bolstered by the GPU's high average benchmark score of 35787, which places it in the 80th percentile versus all GPUs. The RTX 3080's nearest rivals in raw compute, such as the AMD Radeon RX 7900 GRE with a 0.9% higher score, suggest that the GPU is a strong performer, though the CPU's 50th percentile standing (avg score 2305) may be holding the combo back from a higher rank.

The Intel Core i5-9400's nearest rivals in CPU benchmarks are closely matched, with the Intel Core i3-10305 and Intel Core i3-1125G4 scoring within 0.2% of it. This indicates that the processor is a mid-range part, and its six threads may not be ideal for every game. However, for Don't Starve Together, the ranking of 664 out of 1667 suggests the combo is well-balanced enough to deliver a smooth experience, even if it is not at the absolute top tier of performance.

Settings Recommendations

Based on the measured FPS rows, the optimal settings depend heavily on the target resolution and refresh rate. At 1920x1080, the data shows that even Ultra settings can achieve an average of 139.8 FPS, which is excellent for high-refresh-rate monitors. If a player has a 144Hz display, High settings at 165.3 FPS would be the sweet spot, providing a buffer above the refresh rate. For 1440p, High settings at 123.5 FPS is the recommended choice, as it offers a strong balance between visual quality and smoothness, staying above the 100 FPS mark that is often considered the threshold for competitive play. Ultra at 1440p drops to 100.1 FPS, which is still playable but leaves less headroom.

At 4K, the situation changes. High settings produce a playable 70.6 FPS, but Medium settings at 89.1 FPS would be the better recommendation for a smoother experience if the visual fidelity loss is acceptable. Ultra at 4K is nearly unplayable at 56.4 FPS, falling below the 60 FPS standard for most gamers. The data suggests that Low settings at 4K (122.5 FPS) are overkill for visual quality and that the GPU is capable of far more, making High the most sensible choice for a balance of quality and performance, with Medium as a fallback for those prioritizing frame rate.

Measured FPS Breakdown

The complete dataset shows a clear pattern of performance scaling. At 1920x1080, the average FPS ranges from 200.4 at Low settings to 139.8 at Ultra. The incremental steps are: Low (200.4), Medium (175.5), High (165.3), and Ultra (139.8). This shows that the difference between Medium and High is only 10.2 FPS, while the jump from High to Ultra costs 25.5 FPS. At 2560x1440, the numbers are 178.9 (Low), 142.9 (Medium), 123.5 (High), and 100.1 (Ultra). The gap between Low and Ultra widens to 78.8 FPS, indicating a greater GPU load.

At 3840x2160, the average FPS figures are 122.5 (Low), 89.1 (Medium), 70.6 (High), and 56.4 (Ultra). The progression is linear but steep, with each setting tier costing roughly 20-30 FPS. Notably, the 4K Low setting (122.5 FPS) is nearly identical to the 1440p High setting (123.5 FPS), which shows just how much pixel count impacts the RTX 3080. The data across all resolutions confirms that the RTX 3080 is the dominant factor at 4K, while the CPU's influence is more visible at 1080p where the frame rates are higher.

GPU Role

The NVIDIA GeForce RTX 3080 plays a central role in this game's performance, particularly at higher resolutions. Its 10 GB of GDDR6X memory with a 320-bit bus width and 760.3 GB/s bandwidth is well-suited for handling the texture data required at 4K. The GPU's 8704 shading units and 272 texture mapping units are likely the reason it can push such high frame rates at 1080p and 1440p, even with a relatively modest CPU. The boost clock of 1710 MHz, combined with the 68 RT cores and 272 tensor cores, provides ample compute for a game like Don't Starve Together, which is not graphically demanding but benefits from high pixel throughput.

The GPU's average benchmark score of 35787 places it in the 80th percentile, and its nearest rival, the AMD Radeon RX 7900 GRE, is only 0.9% faster. This suggests the 3080 is a top-tier performer, but the measured FPS data shows it is not fully utilized at 1080p. At 4K Ultra, the GPU's 56.4 FPS result indicates it is being pushed to its limits, as the pixel rate of 164.2 GPixel/s and texture rate of 465.1 GTexel/s become the gating factors. The GPU's FP32 compute of 29.77 TFLOPS is more than enough, suggesting the bottleneck at 4K is memory bandwidth and raw pixel throughput rather than shader complexity.

FAQ

Q: What is the best resolution for this combo to maintain a consistent 100+ FPS?

A: At 2560x1440, all settings except Ultra (100.1 FPS) deliver above 120 FPS, with High at 123.5 FPS and Medium at 142.9 FPS. 1920x1080 Ultra is also viable at 139.8 FPS.

Q: How does the 4K Ultra performance compare to 1080p Low?

A: 4K Ultra averages 56.4 FPS, which is 144 FPS lower than the 200.4 FPS seen at 1080p Low. This shows a 72% performance reduction from the lowest to highest workload.

Q: Is the CPU or GPU the limiting factor at 1080p?

A: The data suggests the CPU is the limiter at 1080p, as the frame rates are very high (165.3 FPS on High) but the GPU is capable of more. The 6-core, 6-thread i5-9400 with a 4.10 GHz boost clock likely caps performance.

Q: What is the combo's overall ranking in this game?

A: The Intel Core i5-9400 + RTX 3080 combination ranks 664th out of 1667 tested combos for Don't Starve Together, placing it in the top 40% of all pairings.

Q: How much performance is lost going from Medium to Ultra at 1440p?

A: At 2560x1440, Medium averages 142.9 FPS, while Ultra averages 100.1 FPS. The difference is 42.8 FPS, a 30% drop for the highest visual preset.

Q: Does the RTX 3080 have enough memory for 4K in this game?

A: The GPU's 10 GB GDDR6X with 760.3 GB/s bandwidth appears sufficient, as High settings at 4K still achieve 70.6 FPS. The bottleneck is more about pixel fill rate than memory capacity.

CPU Role

The Intel Core i5-9400 has 6 cores and 6 threads, with a base clock of 2.90 GHz and a boost clock of 4.10 GHz. Its architecture is Coffee Lake, built on a 14 nm process, and it supports DDR4 memory with a dual-channel bus and 42.7 GB/s bandwidth. The processor's benchmark scores are modest, with a Cinebench R23 multicore score of 7969 and a single-core score of 1125. This places it in the 50th percentile of all CPUs, with an average benchmark score of 2305, nearly identical to the Intel Core i3-10305 and Intel Core i3-1125G4.

In Don't Starve Together, the CPU's role is most apparent at 1080p and 1440p where the frame rates are high. The data shows that at 1080p, the frame rates across Low, Medium, and High settings (200.4, 175.5, and 165.3 FPS) are all very close, suggesting the CPU is the limiting factor rather than the GPU. The 6 threads may struggle to feed the RTX 3080 in scenes with many entities, but the measured averages are still excellent. At 4K, the CPU's impact diminishes, as the GPU becomes the clear bottleneck, evidenced by the large FPS drops across setting tiers. The CPU's 9 MB of shared L3 cache and 64 KB L1 cache per core are likely sufficient for this game's logic, but the data implies that a stronger CPU with more threads could push 1080p frame rates even higher, though the current pairing is well-matched for 1440p gaming.