Thief

Thief, a 2014 stealth title, responds dramatically to both resolution and graphics presets when powered by the Intel Core i5-12400 and AMD Radeon RX 5700 XT. The measured data reveals a system that is firmly GPU-bound at higher resolutions, but which also shows significant scaling headroom as settings are lowered, making this combo a flexible option for a wide range of display targets.

Resolution Scaling

The FPS drop from 1080p to 4K is steep, which is typical for a game of this era on modern hardware. At Ultra settings, the average frame rate falls from 85.0 at 1920x1080 to 60.6 at 2560x1440, a 28.7% reduction, and then plummets to 32.2 at 3840x2160, a 62.1% reduction from the 1080p baseline. This scaling pattern clearly indicates that the Radeon RX 5700 XT's rendering pipeline becomes the limiting factor as pixel count increases.

The picture changes when looking at lower presets. At Low settings, the system achieves 156.1 FPS at 1080p, 107.5 FPS at 1440p, and 59.7 FPS at 4K. The drop from 1080p to 4K at Low settings is 61.8%, which is nearly identical to the percentage drop seen at Ultra. This consistency suggests that the GPU's memory bandwidth and fill rate are the primary constraints across all settings, rather than the CPU or shader complexity.

At 1080p, the difference between Low and Ultra is 71.1 FPS (156.1 vs 85.0), while at 4K, the difference narrows to 27.5 FPS (59.7 vs 32.2). This compression of the performance gap at higher resolutions reinforces that the RX 5700 XT is the bottleneck; the CPU is capable of feeding it more frames at 1080p, but the GPU simply cannot maintain that throughput when pixel count quadruples. The data suggests that for 4K gaming, users will need to rely on Low or Medium settings to approach playable frame rates, while 1440p offers a much more balanced experience.

How This Combo Ranks

Within the database of tested combinations, this pairing of the Core i5-12400 and Radeon RX 5700 XT achieves a rank of 1232 out of 1642 combos for Thief, placing it in the 75th percentile. This is a mid-pack result, indicating that while the combo is not a top-tier performer in this specific title, it sits comfortably ahead of the majority of systems tested.

The CPU's own benchmark statistics support this positioning. The Core i5-12400 scores an average of 19850 in the database's aggregated benchmarks, placing it in the 77th percentile of all CPUs. Its nearest rival, the Intel Core i7-9700, scores 19831, a negligible delta of 0.1%. This means the i5-12400's processing power is essentially on par with that older i7, and it slightly edges out the Intel Core i7-8700 by 0.2% (19850 vs 19894).

For the GPU, the Radeon RX 5700 XT holds an average benchmark score of 24731, which places it in the 68th percentile of all GPUs. Its closest competitor is the NVIDIA RTX A5000 Mobile, which scores 24763, a delta of -0.1%. This indicates that the RX 5700 XT is performing right at the expected level for its class. The combination of a 77th percentile CPU with a 68th percentile GPU yields a 75th percentile combo ranking in Thief, which suggests the game is well-optimized for this hardware pairing without any unusual bottlenecks or stellar synergies.

Settings Recommendations

For a 1080p display, the data shows that users can afford to be aggressive with settings. The High preset delivers 92.0 FPS, which is excellent for a stealth game. However, pushing to Ultra yields 85.0 FPS, a modest 7 FPS penalty for the visual upgrade. Given the headroom, Ultra is the recommended choice for 1080p, as the frame rate remains well above the 60 FPS threshold.

At 1440p, the decision becomes more nuanced. The Ultra preset delivers 60.6 FPS, which is just above the 60 FPS target and usable. The High preset offers 60.9 FPS, which is statistically identical to Ultra. Since there is no meaningful performance difference, users should opt for the higher visual quality of Ultra at 1440p. The Medium preset provides 81.3 FPS, which is a significant jump, but it comes at the cost of visual fidelity. For a game like Thief where atmosphere matters, the Ultra preset is the sweet spot.

At 4K, the situation is more constrained. The High preset delivers 36.9 FPS, which is not smooth. The Low preset delivers 59.7 FPS, which is just shy of the 60 FPS target, and the Medium preset offers 47.3 FPS. For 4K, the data clearly points to Low settings as the only viable option for a consistent experience, with Medium being a compromise for those who prioritize visuals over frame rate smoothness. The performance gap between High and Low at 4K is 22.8 FPS, which is substantial.

Measured FPS Breakdown

The complete measured FPS data for the Intel Core i5-12400 and AMD Radeon RX 5700 XT combination is as follows.

At 1920x1080, the system delivers an average of 156.1 FPS on Low settings, 114.3 FPS on Medium, 92.0 FPS on High, and 85.0 FPS on Ultra. This shows a clear scaling progression where each preset step reduces performance by roughly 15-20%, with the largest single drop occurring between Low and Medium (41.8 FPS).

At 2560x1440, the results are 107.5 FPS on Low, 81.3 FPS on Medium, 60.9 FPS on High, and 60.6 FPS on Ultra. Notably, the difference between High and Ultra at this resolution is negligible, only 0.3 FPS, which indicates that the Ultra preset's additional effects are not taxing the GPU further, or that the High preset is already hitting a similar rendering limit.

At 3840x2160, the data shows 59.7 FPS on Low, 47.3 FPS on Medium, 36.9 FPS on High, and 32.2 FPS on Ultra. The gap between High and Ultra widens to 4.7 FPS at 4K, suggesting that the extra shading work at Ultra becomes more expensive as pixel count rises. The progression from Low to Ultra at 4K is nearly linear, with each step costing roughly 8-10 FPS.

FAQ

Q: Can this combo handle 4K gaming in Thief?

A: Yes, but only at lower presets. The measured data shows 59.7 FPS at 4K on Low settings and 47.3 FPS on Medium. High and Ultra settings yield 36.9 and 32.2 FPS respectively, which are not smooth enough for a stealth game that requires precision.

Q: What is the best resolution for this CPU and GPU pairing?

A: The data indicates that 2560x1440 is the sweet spot. At this resolution, the Ultra preset delivers 60.6 FPS, which is just above the standard 60 FPS target, while the Low preset provides 107.5 FPS for high-refresh-rate displays. This resolution offers the best balance between visual quality and performance.

Q: How does the Core i5-12400 compare to its nearest CPU rivals?

A: The Core i5-12400 has an average benchmark score of 19850, which is 0.1% higher than the Intel Core i7-9700 (19831) and 0.4% higher than the Intel Core i5-11600K (19771). It is 0.2% slower than the Intel Core i7-8700 (19894), but the differences are all within 1%, meaning the i5-12400 offers parity with these previous-generation processors.

Q: Is the Radeon RX 5700 XT the limiting factor in this system?

A: Yes, the benchmark results indicate this. The GPU holds a 68th percentile rank among all GPUs, while the CPU holds a 77th percentile rank. The FPS scaling from 1080p to 4K shows a consistent drop of over 60% regardless of settings, which is the signature of a GPU-bound scenario.

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

A: The difference is small at lower resolutions but grows at 4K. At 1080p, the drop is 7.0 FPS (92.0 vs 85.0). At 1440p, it is only 0.3 FPS (60.9 vs 60.6). At 4K, the drop is 4.7 FPS (36.9 vs 32.2). Users on 1440p can use Ultra without penalty, while 4K users should stick to High if they must.

Q: Does this combo support high refresh rates at 1080p?

A: Absolutely. The Low preset delivers 156.1 FPS, and even the High preset delivers 92.0 FPS. This is sufficient for 144Hz monitors on Low settings, but users targeting 144Hz on High or Ultra will fall short.

CPU Role

The Intel Core i5-12400 is a 6-core, 12-thread processor based on the Alder Lake architecture, built on a 10 nm process. It has a base clock of 2.50 GHz and a boost clock of 4.40 GHz, with a 65 W TDP. The cache hierarchy includes 80 KB of L1 per core, 1.25 MB of L2 per core, and 18 MB of shared L3 cache.

In Thief, the CPU's role is to feed the GPU with draw calls and physics data. The benchmark data shows that this processor is more than adequate for the task. Its single-thread performance, as measured by the Cinebench R23 single-core score of 2249, ensures that the game's main thread is not a bottleneck. The multi-threaded performance, with a Cinebench R23 multi-core score of 15935, provides ample headroom for background tasks or streaming.

The CPU's 77th percentile rank versus all CPUs, combined with its performance parity with the Intel Core i7-9700 and Intel Core i7-8700, confirms that it is a modern mid-range part that will not hold back the Radeon RX 5700 XT in this title. The data shows that at 1080p Low, the system reaches 156.1 FPS, which is a very high frame rate that stresses the CPU heavily, and the fact that it sustains this without dropping indicates that the i5-12400 has sufficient single-core grunt.

The 18 MB of L3 cache is beneficial for game data that is frequently accessed, and the dual-channel memory support (DDR4 or DDR5) ensures that memory bandwidth is not a limiting factor in this 2014 title. The processor's 3DMark 16-thread score of 5873 and max-thread score of 5890 show consistent scaling across core counts, meaning the game can utilize the available threads efficiently if needed, though Thief's age means it likely relies more on single-core performance. Overall, the CPU provides a solid foundation, and the measured FPS data confirms that the GPU is the primary performance limiter in this configuration.