Thief

The AMD Ryzen 5 8400F paired with the AMD Radeon RX 7900 XTX delivers a performance profile in Thief that is dominated by the GPU at higher resolutions but reveals CPU headroom at 1080p. The measured data shows a system capable of high refresh rates across all tested presets, though the relationship between settings and resolution scaling provides clear guidance for optimization.

Settings Recommendations

The benchmark data indicates that the High preset at 2560x1440 provides the most balanced experience, delivering an average of 117.2 FPS. This sits comfortably above the 60 FPS threshold while maintaining visual fidelity. At 1920x1080, the Ultra preset achieves 147.1 FPS, which is nearly identical to the High preset’s 147.3 FPS at the same resolution; this suggests that the CPU begins to limit performance at 1080p, making the Ultra preset essentially free in terms of frame rate cost.

For 4K gaming, the Medium preset at 90.8 FPS represents the sweet spot, as the jump from Medium to High at 3840x2160 costs 20.3 FPS (from 90.8 to 70.5), while the visual difference between these presets is typically less pronounced than the frame rate penalty. The Low preset at 4K yields 116.5 FPS, but this sacrifices too much image quality for a relatively modest gain over Medium.

At 1440p, the High preset is recommended over Medium (117.2 vs 142.4 FPS) because the 25.2 FPS difference is less critical when already above 100 FPS, and High provides superior visuals. The Ultra preset at 1440p (111 FPS) remains viable, but its 6.2 FPS deficit relative to High does not justify the additional settings load for most users. The data suggests avoiding Low at any resolution unless targeting maximum refresh rates, as the gains over Medium diminish significantly at lower resolutions: 18.5 FPS at 1080p, 17.8 FPS at 1440p, and 25.7 FPS at 4K.

FAQ

Q: What is the highest average FPS achievable with this combo at 1080p?

A: The Low preset delivers the highest measured average at 178.7 FPS, followed closely by Medium at 161.7 FPS and High/Ultra at 147.3/147.1 FPS.

Q: How does the 4K Ultra preset compare to 4K High?

A: At 3840x2160, the Ultra preset produces 66.7 FPS average, which is 3.8 FPS lower than the High preset’s 70.5 FPS. This represents a 5.4% performance penalty for the Ultra settings.

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

A: The data indicates a CPU limit at 1920x1080. The High and Ultra presets yield nearly identical results (147.3 vs 147.1 FPS), and the gap between Low (178.7 FPS) and Medium (161.7 FPS) is smaller than at higher resolutions, suggesting the Ryzen 5 8400F cannot fully feed the RX 7900 XTX at lower settings.

Q: What frame rate can be expected at 1440p with High settings?

A: The High preset at 2560x1440 averages 117.2 FPS, which is 46.7 FPS above the 4K High result and 30.1 FPS below the 1080p High result.

Q: Does the Ultra preset ever outperform High in the measured data?

A: No. Across all three resolutions, Ultra either matches or falls slightly behind High: 70.5 vs 66.7 FPS at 4K, 117.2 vs 111 FPS at 1440p, and 147.3 vs 147.1 FPS at 1080p.

Q: How many total combinations were tested for this game’s ranking?

A: This combo ranks 215th out of 1,642 tested combinations, placing it in the top 13.1% of all configurations measured for Thief.

Resolution Scaling

The frame rate scaling from 1920x1080 to 3840x2160 reveals a clear GPU-bound scenario at higher resolutions, with the CPU providing sufficient headroom at 4K. At High settings, the transition from 1080p to 1440p reduces average FPS from 147.3 to 117.2 (a 20.4% drop), while moving from 1440p to 4K reduces it further to 70.5 FPS (a 39.8% drop from 1440p). This progressive degradation indicates the RX 7900 XTX is the dominant bottleneck at 4K, as the pixel count quadruples from 1080p to 4K yet the frame rate only drops to 47.9% of the 1080p value.

For Low settings, the scaling is even more pronounced: 178.7 FPS at 1080p drops to 160.2 FPS at 1440p (10.4% reduction) and then to 116.5 FPS at 4K (27.3% reduction from 1440p). The smaller relative drop between 1080p and 1440p under Low settings (10.4%) compared to High settings (20.4%) suggests that at Low, the CPU—the Ryzen 5 8400F with 6 cores and 12 threads—begins to impose a ceiling around 160-180 FPS, capping performance at 1080p.

The Medium preset exhibits the most linear scaling: 161.7 FPS at 1080p, 142.4 FPS at 1440p (11.9% drop), and 90.8 FPS at 4K (36.2% drop from 1440p). This consistency indicates that Medium settings balance the CPU and GPU loads more evenly, allowing the scaling to reflect pure rendering resolution changes. The Ultra preset shows the steepest 4K penalty, with 147.1 FPS at 1080p collapsing to 111 FPS at 1440p (24.5% drop) and then to 66.7 FPS at 4K (39.9% drop from 1440p), highlighting that Ultra’s additional effects tax the GPU disproportionately at higher pixel counts.

Measured FPS Breakdown

At 1920x1080, the combo delivers its highest raw performance. The Low preset averages 178.7 FPS, Medium reaches 161.7 FPS, and both High and Ultra cluster tightly at 147.3 and 147.1 FPS, respectively. The near-identical High and Ultra results (a 0.2 FPS difference) strongly indicate the CPU is the limiting component at this resolution, as the GPU has ample headroom to render more frames but the Ryzen 5 8400F cannot issue draw calls fast enough.

At 2560x1440, the spread between presets widens. Low leads at 160.2 FPS, followed by Medium at 142.4 FPS, High at 117.2 FPS, and Ultra at 111 FPS. The gap between High and Ultra grows slightly to 6.2 FPS, while the Medium-to-High gap becomes 25.2 FPS, reflecting the increased pixel shader load at 1440p. This resolution is where the RX 7900 XTX’s 24 GB GDDR6 memory and 960.0 GB/s bandwidth begin to matter, as the 384-bit bus provides sufficient throughput for the higher resolution.

At 3840x2160, the GPU becomes the clear bottleneck. Low produces 116.5 FPS, Medium drops to 90.8 FPS, High falls to 70.5 FPS, and Ultra bottoms out at 66.7 FPS. The relative ordering remains consistent, but the absolute differences shrink: the gap between Low and Medium is 25.7 FPS, Medium to High is 20.3 FPS, and High to Ultra is just 3.8 FPS. This compression at the high end suggests that Ultra’s additional effects are relatively cheap compared to the raw resolution cost, whereas the Low-to-Medium transition represents a substantial visual upgrade for a moderate frame rate penalty.

How This Combo Ranks

This configuration ranks 215th out of 1,642 tested combos in Thief, placing it in the 86.9th percentile of all measured systems. This high ranking is primarily driven by the RX 7900 XTX’s performance class, which sits at the 85th percentile among all GPUs in the database. The CPU, at the 82nd percentile among all processors, is slightly less dominant but still well above average.

The GPU’s nearest rivals contextualize its performance: the AMD Radeon Pro 580 scores 0.4% higher, the NVIDIA GeForce RTX 4090 Mobile scores 0.8% lower, and the NVIDIA Quadro M6000 trails by 1.6%. The RX 7900 XTX is 2% ahead of the NVIDIA GeForce RTX 4070 Ti in average benchmark score, yet the 4070 Ti is the closest competitor in the measured data. This suggests that while the 7900 XTX leads its direct peers in synthetic tests, the actual in-game ranking at 215th reflects the combination’s overall balance.

The CPU’s nearest rivals—the AMD Ryzen 7 2700X (0% delta), AMD Ryzen AI 5 PRO 340 (-0.1%), AMD EPYC 9474F (-0.2%), and AMD Ryzen 5 7500F (0.3%)—show that the 8400F sits in a dense performance cluster. The 0.3% advantage over the Ryzen 5 7500F is negligible in real-world terms, meaning the ranking in Thief is driven almost entirely by the GPU. The combo’s 215th position out of 1,642 represents a strong result for a 6-core/12-thread CPU paired with a flagship GPU, confirming that Thief—a 2014 title—does not heavily tax the CPU at higher resolutions, allowing the RX 7900 XTX to dominate the frame rate output.