Thief

The Intel Core i9-14900K is a 24-core, 32-thread processor based on Raptor Lake architecture, with a base clock of 3.20 GHz and a boost clock of 6.00 GHz. In this title, the CPU’s role is largely secondary. The measured frame rates across all resolutions and settings are consistently low, which indicates that the graphics subsystem is the primary bottleneck. However, the CPU’s high single-thread performance, reflected in a Geekbench single-core score of 3064 and a Cinebench R23 single-core score of 7040, ensures that it is not the limiting factor in this pairing. The processor’s 36 MB of shared L3 cache and 2 MB per-core L2 cache provide ample bandwidth for game logic and draw calls, but the data shows that the GPU is saturated well before the CPU’s capabilities are challenged. The i9-14900K sits in the 97th percentile of all CPUs, with an average benchmark score of 79824, placing it nearly even with the AMD EPYC 7413 (deltaPct -0.3%) and slightly ahead of the Intel Core i9-14900KF (deltaPct 0.7%). For Thief, the CPU’s massive thread count and high clocks are effectively dormant; the frame rates are dictated entirely by the GPU’s processing limits.

GPU Role

The AMD Radeon RX 570 is a GCN 4.0 architecture GPU with a base clock of 1168 MHz and a boost clock of 1244 MHz. It features 2048 shading units, 128 texture mapping units, and 32 ROPs, with a memory configuration of 4 GB GDDR5 on a 256-bit bus delivering 224.0 GB/s of bandwidth. This GPU is the clear performance limiter in this combination. The 4 GB VRAM capacity and the relatively modest 5.095 TFLOPS of FP32 performance are insufficient for Thief’s demands at higher settings. The GPU’s percentile rank is 74, with an average benchmark score of 30158, placing it in the same performance tier as the NVIDIA GeForce RTX 5060 (deltaPct 0.2%) and AMD Radeon RX 7700 XT (deltaPct 0.2%). The data reveals that the RX 570’s performance collapses as resolution and settings increase. At 1080p Low, it manages 73.7 FPS, but at 4K Ultra, it falls to 17.2 FPS. This pattern is characteristic of a GPU that is overwhelmed by pixel fill rate and memory bandwidth demands. The texture rate of 159.2 GTexel/s and pixel rate of 39.81 GPixel/s are simply not enough for high-resolution rendering in this title.

Settings Recommendations

The measured data provides a clear hierarchy for the best experience. At 1920x1080, the Low preset delivers 73.7 FPS, which is the only setting in the entire dataset that approaches a smooth playable frame rate. The Medium preset at 1080p yields 58.7 FPS, which is playable but shows a significant drop. High at 1080p drops to 43.9 FPS, and Ultra is nearly identical at 42.7 FPS, indicating diminishing returns and a hard GPU limit. At 2560x1440, the Low preset is the only viable option, producing 49.6 FPS; Medium falls to 39.5 FPS, High to 29.6 FPS, and Ultra to 30.4 FPS. At 3840x2160, all presets are effectively unplayable, with Low at 28.3 FPS, Medium at 22.2 FPS, and both High and Ultra at 17.2 FPS. Based on the measured rows, the optimal experience is the Low preset at 1080p. The jump from Low to Medium at 1080p costs 15 FPS, which is a 20% reduction, while the jump from Medium to High costs another 14.8 FPS. The data suggests that the Low preset is the only configuration that provides a consistent frame rate above 60 FPS, making it the recommended choice for this hardware combination.

How This Combo Ranks

This specific pairing of the Intel Core i9-14900K with the AMD Radeon RX 570 ranks 1583 out of 1642 tested combos in Thief. This places it in the bottom 4% of all configurations, which is a direct reflection of the GPU’s limitations rather than the CPU’s capabilities. The ranking is heavily influenced by the fact that the RX 570 is a legacy product, as indicated by its production status of End-of-life. The i9-14900K’s high average benchmark score of 79824 is effectively wasted in this pairing because the GPU cannot translate CPU performance into frame rate. The data shows that the combo’s rank is not a measure of CPU inadequacy but rather a measure of GPU-induced bottlenecking. Compared to the CPU’s nearest rivals, the i9-14900K is competitive, but the GPU’s nearest rivals, such as the NVIDIA GeForce RTX 5060 and AMD Radeon RX 7700 XT, have average scores around 30100, which are not substantially higher than the RX 570’s 30158. This suggests that the RX 570 is not a particularly weak GPU in synthetic benchmarks, yet its real-world gaming performance in Thief is disproportionately poor, likely due to driver optimization or specific engine demands.

Resolution Scaling

The frame rate scaling from 1080p to 4K is severe and reveals the limiting component. At 1080p Low, the RX 570 produces 73.7 FPS. Moving to 1440p Low, the frame rate drops to 49.6 FPS, a 32.7% reduction. At 4K Low, it falls to 28.3 FPS, a 61.6% reduction from 1080p. This scaling pattern is consistent with a GPU that is constrained by pixel throughput and memory bandwidth. The 4 GB VRAM is likely exhausted at 4K, causing additional stalls. For the High preset, the drop is even more pronounced: 43.9 FPS at 1080p, 29.6 FPS at 1440p (a 32.6% reduction), and 17.2 FPS at 4K (a 60.8% reduction). The Ultra preset shows a similar trend: 42.7 FPS at 1080p, 30.4 FPS at 1440p, and 17.2 FPS at 4K. The consistency of these percentage drops across all presets indicates that the GPU’s compute units and memory subsystem are the definitive bottleneck. The CPU’s role in this scaling is negligible; the i9-14900K’s performance does not change with resolution, so the frame rate decline is purely a function of the GPU’s rendering load. The data clearly shows that this combo is not suitable for 4K gaming, and even 1440p requires the lowest settings to remain playable.

Measured FPS Breakdown

The exact measured frame rates provide a comprehensive picture. At 1920x1080, the Low preset achieves 73.7 FPS, which is the highest frame rate recorded for this combination. The Medium preset drops to 58.7 FPS, while High and Ultra are nearly identical at 43.9 FPS and 42.7 FPS, respectively. This suggests that beyond the Medium preset, the GPU is unable to scale performance, and the Ultra preset offers no meaningful improvement over High. At 2560x1440, the Low preset produces 49.6 FPS, which is the only playable option at this resolution. Medium falls to 39.5 FPS, High to 29.6 FPS, and Ultra to 30.4 FPS. The Ultra preset at 1440p produces a slightly higher frame rate than High, which is an anomaly in the data but within the margin of measurement variance. At 3840x2160, all presets are below 30 FPS. Low achieves 28.3 FPS, Medium 22.2 FPS, and both High and Ultra are at 17.2 FPS. The frame rate ceiling at 4K is clearly capped by the GPU’s raw computational throughput. The data shows that the RX 570 is capable of delivering a smooth experience only at 1080p with the Low preset. Any other configuration results in frame rates below 60 FPS, with 4K being uniformly unplayable. The min and max FPS values are not provided, so the analysis relies solely on average FPS, but the pattern is unambiguous: this combo is heavily GPU-limited, and the i9-14900K’s potential is entirely unrealized in Thief.