Thief

The AMD Ryzen 5 8400F paired with the AMD Radeon RX 6600 XT delivers a measured performance profile in Thief that places the combination at rank 1105 out of 1642 tested combos. The data shows a 6-core, 12-thread Zen 4 CPU with a 4.20 GHz base and 4.70 GHz boost, alongside a RDNA 2 GPU with 8 GB GDDR6 and a 256.0 GB/s memory bus. This analysis breaks down the measured FPS across resolutions and settings, the roles of each component, and what the numbers imply for gameplay.

How This Combo Ranks

The combo rank of 1105 out of 1642 means this pairing outperforms 537 other tested combinations and sits in the lower third of the field. That placement is not surprising given the GPU’s mid-range positioning, but the CPU’s strong single-thread and multi-thread scores suggest the bottleneck is almost entirely graphical. The CPU’s average benchmark score of 25064 places it in the 82nd percentile of all CPUs, while the GPU’s average score of 27985 lands in the 71st percentile of all GPUs. The delta between these percentiles hints that the GPU is the weaker link in this pairing, a pattern confirmed by the FPS scaling across resolutions.

GPU Role

The RX 6600 XT has 8 GB of GDDR6 memory on a 128-bit bus, delivering 256.0 GB/s of bandwidth. Its base clock is 1968 MHz, boost clock 2589 MHz, and game clock 2359 MHz. In Thief, the measured FPS at 4K High is 36.7, which is below the 60 FPS threshold, while 4K Low reaches 65.1. This indicates that the GPU is the primary limiter at 4K, as even the lowest settings cannot push far beyond 60 FPS. The GPU’s average benchmark score is 0.1% higher than the GTX 980 Ti and 0.9% lower than the RTX 3070, placing it in a tight performance band around those two cards. The 8 GB VRAM is ample for a 2014 title like Thief, which does not demand large frame buffers, so memory capacity is not a constraint here.

FAQ

Q: What is the combo’s rank among tested systems?

A: It ranks 1105 out of 1642, outperforming 537 other combinations.

Q: How does the RX 6600 XT compare to the GTX 980 Ti?

A: The RX 6600 XT’s average benchmark score is 0.1% higher than the GTX 980 Ti’s.

Q: What is the best preset for 1440p?

A: Medium gives 83.6 FPS, while High gives 63.3 and Ultra 56.7, so Medium is the highest preset that stays above 60 FPS.

Q: Is the CPU a bottleneck at 4K?

A: The FPS drop from 1080p to 4K is similar across settings, indicating the GPU is the limiting factor, not the CPU.

Q: What is the CPU’s single-thread performance?

A: The 3DMark single-thread score is 951, and Cinebench R23 single-core is 2943.

Q: How much VRAM does the GPU have?

A: 8 GB of GDDR6.

Measured FPS Breakdown

The measured FPS data covers three resolutions and four settings, all with average frame rates. At 1920x1080, Low delivers 155.3 FPS, Medium 120.6, High 88.2, and Ultra 88.9. At 2560x1440, Low reaches 108.9, Medium 83.6, High 63.3, and Ultra 56.7. At 3840x2160, Low hits 65.1, Medium 50, High 36.7, and Ultra 35. These numbers show a clear pattern: the gap between Low and Ultra narrows as resolution increases, but the absolute FPS drops sharply. For example, at 1080p, Ultra is 66.4 FPS lower than Low, while at 4K, Ultra is 30.1 FPS lower. This suggests that the GPU’s compute and memory bandwidth are stretched at higher resolutions, while at 1080p the CPU has enough headroom to let the GPU run at its full potential.

CPU Role

The Ryzen 5 8400F has 6 cores and 12 threads, with a base clock of 4.20 GHz and a boost of 4.70 GHz. Its L3 cache is 16 MB shared, and it supports DDR5 memory with a dual-channel bus. The CPU’s average benchmark score of 25064 is within 0.3% of its nearest rivals, including the Ryzen 7 2700X (delta 0) and the Ryzen 5 7500F (delta 0.3). In Thief, a game from 2014, the CPU’s multi-threaded capabilities are likely underutilized, as the title is not heavily threaded. The measured FPS scaling from 1080p to 4K is consistent across settings, which indicates that the CPU is not the limiting factor at any resolution. Even at 1080p Low, where the GPU is least stressed, the CPU still delivers 155.3 FPS, suggesting it can handle the game’s logic without bottlenecking.

Settings Recommendations

For a 60 FPS target, the highest playable preset varies by resolution. At 1080p, Ultra and High both exceed 88 FPS, with Ultra at 88.9 and High at 88.2, so either is viable; Ultra offers a marginal 0.7 FPS advantage. At 1440p, Medium provides 83.6 FPS, while High drops to 63.3 and Ultra to 56.7, so Medium is the highest preset that maintains 60 FPS. At 4K, only Low reaches 65.1; Medium is 50, High 36.7, and Ultra 35, so Low is the only preset that stays above 60 FPS. For players who prioritize visual quality over a strict 60 FPS lock, 1440p High at 63.3 FPS is a reasonable compromise, but the data shows that Medium is the safest choice for smooth gameplay at that resolution.

Resolution Scaling

The FPS drop from 1080p to 4K is steep and consistent. At High settings, the average FPS falls from 88.2 at 1080p to 63.3 at 1440p (a 28.2% reduction) and then to 36.7 at 4K (a 42.0% reduction from 1440p). At Low settings, the drop is from 155.3 to 108.9 (29.9% reduction) and then to 65.1 (40.2% reduction). The similarity in these percentage drops across settings indicates that the GPU is the dominant bottleneck as resolution increases. The CPU’s performance is not affected by resolution, so the consistent scaling points to the RX 6600 XT’s memory bandwidth and compute throughput being the limiting factors. The 256.0 GB/s bandwidth and 10.60 TFLOPS FP32 performance are sufficient for 1080p and 1440p, but at 4K the GPU simply runs out of headroom, as evidenced by the sub-60 FPS results on all but the lowest preset.