Thief

Thief, a 2014 stealth title, remains a demanding showcase for modern hardware. The measured performance of the Intel Core i5-14600K paired with the AMD Radeon RX 6750 XT reveals a configuration that scales predictably across resolutions and settings. Benchmark results indicate a system that is primarily GPU-bound at higher resolutions, while the CPU’s strength becomes apparent only at 1080p. This analysis dissects the measured frame rates to understand the balance between the processor and graphics card.

Resolution Scaling

The data shows a clear and expected decline in average frame rates as resolution increases, but the magnitude of the drop is not uniform across all settings. At Low settings, the transition from 1920x1080 to 2560x1440 results in a drop from 194.8 FPS to 134.1 FPS, a substantial 31% reduction. Moving further to 3840x2160 at Low yields 81.5 FPS, which is a 58% decrease from the 1440p figure. This steep scaling at low graphical fidelity indicates that the GPU is being fed a lighter workload, yet it still struggles significantly with the increased pixel count, pointing to a fill-rate and bandwidth limitation.

The scaling pattern changes when we examine higher graphical presets. At High settings, the frame rate goes from 115.4 FPS at 1080p to 76 FPS at 1440p, a 34% drop. The subsequent jump to 4K (3840x2160) at High results in 45.8 FPS, a 40% reduction from the 1440p result. This suggests that as the settings increase, the workload becomes more complex, but the resolution scaling remains the dominant factor. The GPU’s 12 GB of GDDR6 memory and 432.0 GB/s bandwidth are likely being saturated at 4K, particularly with higher texture quality.

The most telling evidence of the GPU being the limiting component comes from the Ultra preset. At 1080p Ultra, the system achieves 105.5 FPS. At 1440p Ultra, this falls to 77 FPS, a 27% drop. However, at 4K Ultra, the average FPS plummets to 41.6, a 46% reduction from 1440p. This disproportionate drop at 4K Ultra suggests that the Radeon RX 6750 XT’s compute resources are overwhelmed by the combination of high resolution and maximum graphical effects. The data indicates that while the card can handle 1440p Ultra with playable frame rates, 4K Ultra is a significant challenge, pushing the GPU to its limits.

GPU Role

The AMD Radeon RX 6750 XT is the central figure in these performance metrics. Its specifications, including a base clock of 2150 MHz and a boost clock of 2600 MHz, provide the raw processing power for the observed frame rates. The card’s 2560 shading units and 160 texture mapping units are responsible for the pixel and texture throughput, which is critical in a game like Thief with its detailed environments and lighting. The benchmark results show that the GPU’s performance is robust, placing it in the 79th percentile of all GPUs, with an average benchmark score of 35327.

The GPU’s memory subsystem is a key factor in its performance. With 12 GB of GDDR6 memory on a 192-bit bus, it achieves a bandwidth of 432.0 GB/s. In the context of Thief, this bandwidth is sufficient for 1080p and 1440p gameplay, even at higher settings. However, at 4K, the data suggests that memory bandwidth and capacity become bottlenecks. The difference between 4K Medium (58.8 FPS) and 4K High (45.8 FPS) is 13 FPS, while the difference between 4K High and 4K Ultra (41.6 FPS) is only 4.2 FPS. This compression in frame rates at the highest settings indicates that the GPU is hitting a performance ceiling, likely due to memory bandwidth constraints and the increased demand on the ROPs (64).

Comparing the RX 6750 XT to its nearest rivals, it sits within a tight performance band. Its average benchmark score of 35327 is 0.2% higher than the AMD Radeon RX 5600M (35264) and 0.3% lower than the NVIDIA GeForce RTX 5070 Ti Mobile (35435). It also trails the AMD Radeon 880M (35646) by 0.9% and the NVIDIA GeForce RTX 3080 (35787) by 1.3%. These small deltas indicate that in synthetic benchmarks, the RX 6750 XT is a very competitive mid-to-high-end card. However, the measured FPS in Thief reveals that its real-world performance is heavily influenced by resolution and settings, showing a practical strength at 1440p.

FAQ

Q: What is the highest average frame rate achievable with this CPU and GPU combination in Thief?

A: The highest measured average frame rate is 194.8 FPS, achieved at 1920x1080 resolution with Low settings.

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

A: Yes, but with limitations. At 3840x2160 with High settings, the average FPS is 45.8. At Ultra settings, the average drops to 41.6 FPS. While playable, the frame rates are significantly lower than at 1440p.

Q: How does the RX 6750 XT compare to the RTX 3080 in this game?

A: The data does not provide direct in-game comparisons. However, in average benchmark scores, the RTX 3080 is 1.3% higher than the RX 6750 XT. The RX 6750 XT’s average score is 35327, while the RTX 3080’s is 35787.

Q: What is the performance difference between Low and Ultra settings at 1440p?

A: At 2560x1440, the average FPS at Low settings is 134.1. When switching to Ultra settings, the average FPS falls to 77. This represents a 57 FPS reduction, or a 42.6% performance penalty for enabling maximum graphical features.

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

A: The data suggests the GPU is still a significant factor. At 1080p Low, the system achieves 194.8 FPS. The Intel Core i5-14600K has a high multi-threaded benchmark score of 32881 in Cinebench R23, which is more than capable. The fact that the frame rate drops to 105.5 FPS at 1080p Ultra indicates the GPU is still the bottleneck for this title.

Q: What is the average frame rate difference between Medium and High settings at 4K?

A: At 3840x2160, the average FPS on Medium settings is 58.8. On High settings, the average FPS is 45.8. This is a difference of 13 FPS, showing that the High preset is noticeably more demanding on the GPU.

Measured FPS Breakdown

The measured data provides a comprehensive look at the system's performance across a matrix of resolutions and settings.

At 1920x1080, the configuration delivers high frame rates. With Low settings, the average FPS is 194.8. This is the highest score in the entire dataset. Moving to Medium settings, the average FPS is 150.7, a 22.6% drop from Low. High settings yield an average of 115.4 FPS, and Ultra settings produce 105.5 FPS. The scaling from Low to Ultra at 1080p shows a total performance reduction of 89.3 FPS, or 45.8%.

At 2560x1440, the frame rates remain robust. Low settings average 134.1 FPS, which is still very high. Medium settings average 101.9 FPS, a 24% drop. High settings average 76 FPS, and Ultra settings average 77 FPS. Interestingly, the difference between High and Ultra at 1440p is minimal, with Ultra being just 1 FPS faster, which could be within a margin of error or due to specific scene variations. The data shows a 57.1 FPS difference between Low and Ultra at this resolution.

At 3840x2160, the GPU is under significant load. Low settings average 81.5 FPS. Medium settings average 58.8 FPS, a 27.9% drop. High settings average 45.8 FPS, and Ultra settings average 41.6 FPS. The drop from High to Ultra is only 4.2 FPS, indicating that the card is hitting a performance wall. The total reduction from Low to Ultra at 4K is 39.9 FPS, or 49%. This data confirms that 4K is the most demanding scenario, and the RX 6750 XT's performance degrades significantly.

CPU Role

The Intel Core i5-14600K serves as the foundation for this system. Its specifications are formidable: it has 14 cores and 20 threads, with a base clock of 3.50 GHz and a boost clock of 5.30 GHz. The processor is built on Intel’s 10 nm process and features a 24 MB shared L3 cache. In synthetic benchmarks, the CPU performs admirably. Its Cinebench R23 multi-core score is 32881, and its single-core score is 4642. It also achieves a Geekbench single-core score of 2803 and a multi-core score of 15846.

In the context of Thief, the CPU’s role is to feed the GPU with draw calls and process game logic. The data shows that at 1080p Low settings, the system achieves 194.8 FPS. This high frame rate reflects the CPU’s strong single-thread performance, as older games often rely heavily on a few cores. The CPU’s 20 threads are likely not fully utilized, but the high boost clock of 5.30 GHz ensures that the primary threads are processed efficiently. The CPU’s performance is also reflected in its percentile ranking, being in the 93rd percentile of all CPUs.

The CPU’s nearest rivals in terms of average benchmark score include the AMD Ryzen 9 5950X, which is 0.2% slower, and the Intel Core i5-14600KF, which is 0.4% faster. The data indicates that the CPU is not a bottleneck in this configuration. The frame rate drops at higher resolutions are consistent with GPU limitations, not CPU constraints. The CPU’s robust benchmark performance, including a passmark multi-thread score of 38682, suggests it has ample headroom. The measured FPS in Thief, particularly the 194.8 FPS at 1080p Low, confirms that the i5-14600K more than keeps up with the RX 6750 XT, allowing the GPU to be the definitive performance limit.