Thief

The AMD Ryzen 5 8400F and AMD Radeon RX 5700 XT combination ranks 1227th out of 1642 tested combos in Thief, placing it in the lower-middle portion of the database. This position suggests the pairing is not optimized for this specific title, despite both components having respectable standalone profiles. The CPU sits at the 82nd percentile against all processors, while the GPU rests at the 68th percentile against all graphics cards, yet their combined performance in Thief does not boost them higher in the rankings. The data implies that Thief's engine may not scale well with this hardware pairing, or that the game's demands favor configurations with different characteristics than what this combo offers.

How This Combo Ranks

The combo's rank of 1227 out of 1642 places it in the 74.7th percentile of tested configurations, meaning roughly a quarter of all combinations deliver better performance in Thief. This is a notable gap when considering the individual component strengths. The Ryzen 5 8400F's average benchmark score of 25064 is nearly identical to its nearest rival, the AMD Ryzen 7 2700X, which scores 25057 with a deltaPct of 0. This near-parity indicates the CPU is performing exactly as expected for its class. The RX 5700 XT's average score of 24731 is similarly close to the NVIDIA RTX A5000 Mobile, which scores 24763 with a deltaPct of -0.1. The combination of two mid-tier components producing a below-mid-tier result in Thief suggests the game may be particularly sensitive to specific bottlenecks that this pairing does not address well. The rank gap becomes more meaningful when considering that the CPU's multithreaded potential (Cinebench R23 multicore score of 20851) and the GPU's compute capabilities (Passmark GPU compute score of 7650) both appear adequate, yet the in-game result falls short of what component-level data might predict.

GPU Role

The RX 5700 XT brings 8 GB of GDDR6 memory on a 256-bit bus, delivering 448.0 GB/s of bandwidth. Its clock speeds are substantial, with a base of 1605 MHz, a game clock of 1755 MHz, and a boost of 1905 MHz. These specifications directly influence Thief's performance, particularly at higher resolutions where memory bandwidth and fill rate become critical. The GPU's pixel rate of 121.9 GPixel/s and texture rate of 304.8 GTexel/s are solid figures for a card of this generation, but the data shows a steep performance cliff when moving from 1080p to 4K. At 1080p Ultra, the combo achieves 85 FPS, but at 4K Ultra, this drops to 34.5 FPS—a reduction of 59.4%. This pattern strongly suggests the GPU becomes the limiting factor at higher resolutions, as the 8 GB frame buffer may struggle with the increased memory pressure that Thief's larger textures and effects demand at 4K. The card's FP32 throughput of 9.754 TFLOPS is respectable, yet the measured results indicate that Thief's rendering pipeline does not translate this raw compute power into proportional frame rates at higher settings.

Resolution Scaling

The FPS scaling from 1080p to 4K reveals a clear trend of GPU-bound performance degradation. At Low settings, the combo delivers 154.1 FPS at 1080p, which drops to 107 FPS at 1440p (a 30.6% decrease) and further to 61.5 FPS at 4K (a 60.1% decrease from 1080p). This steep drop at 4K Low—where the GPU is less likely to be pixel-bound—indicates that even at minimal settings, the memory subsystem or shading capacity is being pushed hard. At Ultra settings, the pattern is even more pronounced: 85 FPS at 1080p falls to 60.1 FPS at 1440p (a 29.3% drop) and then to 34.5 FPS at 4K (a 59.4% drop). The consistency of these percentage drops across settings suggests that resolution scaling is the dominant factor, not texture complexity. The CPU's role appears secondary here, as its high single-thread performance (Passmark single-thread score of 3684) should not bottleneck at 1080p, yet the 4K results show the GPU reaching its limits. The data implies that players targeting 4K will need to make significant compromises, as even Low settings only yield 61.5 FPS, which is below the 60 FPS threshold often considered smooth.

Measured FPS Breakdown

At 1920x1080, the combo produces 154.1 FPS on Low, 117.2 FPS on Medium, 87.7 FPS on High, and 85 FPS on Ultra. The gap between High and Ultra is minimal at 2.7 FPS, suggesting diminishing returns at the top end. The Medium to High transition costs 29.5 FPS, which is a significant jump that indicates High settings impose a substantial workload increase. Moving to 2560x1440, the numbers drop to 107 FPS on Low, 81.2 FPS on Medium, 61.9 FPS on High, and 60.1 FPS on Ultra. Here, the High to Ultra gap narrows to just 1.8 FPS, making Ultra nearly free in performance terms at this resolution. At 3840x2160, the results are 61.5 FPS on Low, 46.1 FPS on Medium, 38.4 FPS on High, and 34.5 FPS on Ultra. The Medium to High drop of 7.7 FPS is notable, while High to Ultra costs 3.9 FPS. The data shows that 1440p High (61.9 FPS) and 4K Low (61.5 FPS) deliver nearly identical frame rates, which is a curious parity that suggests the GPU's memory bandwidth is the binding constraint rather than shading units or texture fill.

FAQ

Q: What is the best resolution for this combo in Thief?

A: The data shows 2560x1440 on High settings delivers 61.9 FPS, which is the highest resolution and settings combination that maintains a frame rate above 60 FPS. At 4K, even Low settings only reach 61.5 FPS, making 1440p the practical ceiling for smooth gameplay.

Q: How much performance is lost when moving from 1080p to 4K?

A: At Ultra settings, the drop is from 85 FPS at 1080p to 34.5 FPS at 4K, a 59.4% reduction. At Low settings, the drop is from 154.1 FPS to 61.5 FPS, a 60.1% reduction. The percentage loss is consistent regardless of settings.

Q: Is the CPU or GPU the bottleneck in Thief?

A: The CPU's nearest rival, the AMD Ryzen 7 2700X, has nearly identical average scores (deltaPct 0), suggesting the processor is performing as expected. The GPU's nearest rival, the NVIDIA RTX A5000 Mobile, is also closely matched (deltaPct -0.1). The steep FPS drops at 4K indicate the GPU becomes the limiting factor at higher resolutions.

Q: What is the difference between High and Ultra settings in Thief?

A: At 1080p, the difference is 2.7 FPS (85 vs 87.7). At 1440p, the difference narrows to 1.8 FPS (60.1 vs 61.9). At 4K, the difference is 3.9 FPS (34.5 vs 38.4). The Ultra preset offers minimal gains over High across all resolutions.

Q: Can this combo achieve 60 FPS at 4K in Thief?

A: No. The measured data shows the best 4K result is 61.5 FPS on Low settings, which is technically above 60 FPS. However, Medium settings drop to 46.1 FPS, and High settings fall to 38.4 FPS. Only Low settings reach the 60 FPS threshold at 4K.

Q: How does the RX 5700 XT's memory configuration affect Thief?

A: The GPU has 8 GB of GDDR6 memory with 448.0 GB/s bandwidth. The data shows 4K performance drops sharply even at Low settings, suggesting the 8 GB capacity may be insufficient for Thief's larger textures at that resolution, as the memory bandwidth alone (448.0 GB/s) appears adequate for lower resolutions.

CPU Role

The Ryzen 5 8400F contributes 6 cores and 12 threads based on the Zen 4 architecture, with a base clock of 4.20 GHz and boost clock of 4.70 GHz. This processor's single-thread capabilities are notable, as evidenced by its Passmark single-thread score of 3684 and Cinebench R23 single-core score of 2943. In Thief, a game that relies heavily on single-threaded performance for game logic and AI, these scores are relevant. The CPU's 3DMark single-thread score of 951 and 2-thread score of 1874 indicate that even lightly threaded workloads are handled well. However, the measured FPS data suggests the CPU is not the primary bottleneck, as performance scales predictably with resolution changes that would affect GPU load. The CPU's 16 MB of shared L3 cache and 1 MB L2 per core provide adequate data locality for game assets, but Thief's engine may not fully utilize the 12 threads, leaving the GPU to determine overall frame rates. The processor's 65 W TDP and 4 nm process node indicate efficiency, but in this game, the CPU's contribution appears to be a supporting role rather than a leading one.

Settings Recommendations

The measured rows show that the optimal experience depends heavily on the target resolution. At 1080p, Medium settings (117.2 FPS) offer a strong balance, as High (87.7 FPS) and Ultra (85 FPS) deliver only marginal visual improvements for a substantial 30 FPS cost. At 1440p, High settings (61.9 FPS) are the best choice, as Ultra (60.1 FPS) provides negligible gains while Medium (81.2 FPS) sacrifices visual fidelity without a proportional frame rate benefit. At 4K, Low settings (61.5 FPS) are the only viable option for smooth gameplay, as Medium (46.1 FPS) and High (38.4 FPS) fall below the 60 FPS threshold. For players prioritizing visual quality, 1440p High offers the best combination of detail and performance, while those seeking maximum frame rates should use 1080p Low (154.1 FPS) for competitive play. The data indicates that High settings at 1440p (61.9 FPS) and Low at 4K (61.5 FPS) are nearly equivalent in performance, so the choice between them comes down to whether resolution or visual effects matter more—with the caveat that 4K Low will have noticeably reduced texture quality and effects compared to 1440p High.