Thief

The Intel Core i5-14600K paired with the NVIDIA GeForce RTX 4070 delivers a remarkably consistent experience in Thief, but the way frame rates scale with resolution reveals a system that is heavily GPU-bound at higher settings. At 1080p with Low settings, the combo pushes 211.5 FPS, but dropping to 4K at the same preset yields 103.2 FPS. That is a reduction of roughly 51% as pixel count quadruples, which points squarely at the graphics card as the primary limiter. The CPU, with its 14 cores and 20 threads boosting to 5.30 GHz, is simply not the bottleneck at these settings.

The trend holds across all quality presets. At Medium, the frame rate falls from 186.9 FPS at 1080p to 134.1 FPS at 1440p, then to 80.3 FPS at 4K. The drop from 1440p to 4K is steeper than from 1080p to 1440p, a classic sign of the GPU hitting its fill-rate ceiling. High settings show the same pattern: 148.5 FPS at 1080p, 104 FPS at 1440p, and 59.4 FPS at 4K. Ultra is the most demanding, scaling from 142.6 FPS at 1080p down to 97.9 FPS at 1440p and finally 58.3 FPS at 4K.

What is notable is that the gap between Low and Ultra narrows as resolution increases. At 1080p, the difference is 68.9 FPS (211.5 vs 142.6), but at 4K it shrinks to 44.9 FPS (103.2 vs 58.3). This is the signature of a GPU-bound scenario: when the render target grows, the cost of higher-quality shading becomes relatively less impactful than the raw pixel throughput. The RTX 4070, with its 12 GB of GDDR6X memory and 504.2 GB/s of bandwidth, is clearly the deciding factor here. The CPU's high single-thread performance, evidenced by a Geekbench single-core score of 2803, ensures it never starves the GPU, even at 1080p where CPU overhead typically matters most.

Resolution Scaling

The data shows that 1080p is where this combo truly shines, but 1440p is the sweet spot for balance. At 1080p Low, the 211.5 FPS average is far beyond what any display can show, suggesting the frame rate is likely capped by the game engine or driver overhead rather than hardware limits. The CPU, which scores 32881 in Cinebench R23 multi-core, has ample headroom to feed the GPU at this resolution. Moving to 1440p, the frame rate at High drops to 104 FPS, which is still excellent for a smooth experience, and even Ultra maintains 97.9 FPS. The transition from 1440p to 4K is where the RTX 4070 begins to show its limitations. At 4K High, the average drops to 59.4 FPS, just below the 60 FPS threshold, and Ultra dips further to 58.3 FPS.

The scaling pattern is consistent with a GPU that has 5888 shading units and a boost clock of 2475 MHz. At 4K, the pixel rate of 158.4 GPixel/s becomes the limiting factor. The fact that Low settings at 4K still manage 103.2 FPS demonstrates that the card can handle the pixel count when the shading load is light. However, the jump from Low to Medium at 4K costs 22.9 FPS (from 103.2 to 80.3), while the same jump at 1080p only costs 24.6 FPS (from 211.5 to 186.9). This indicates that the memory bandwidth and texture units are being saturated as resolution climbs. For a 2014 title like Thief, this is an impressive result, but the numbers clearly show that 4K Ultra is a stretch for this hardware combination, while 1440p remains entirely comfortable.

Settings Recommendations

Based on the measured frame rates, the optimal experience is achieved at 1440p with High settings. This delivers 104 FPS, which is smooth and leaves headroom for dips in complex scenes. Pushing to Ultra at 1440p costs only 6.1 FPS (from 104 to 97.9), so players with high-refresh-rate 1440p monitors may prefer the visual upgrade if they can tolerate the slightly lower average. At 1080p, Ultra is the clear choice, as it still produces 142.6 FPS, far exceeding the needs of any standard display. There is little reason to use Low or Medium at 1080p, as the frame rate gains are not perceptible when already above 140 FPS.

At 4K, the recommendation is more nuanced. High settings at 59.4 FPS are playable, but not ideal for a stealth game where smooth motion matters. Medium settings at 80.3 FPS provide a better balance, offering a 35% improvement over High while still looking respectable. Low settings at 103.2 FPS are the best choice for competitive play or for users who prioritize frame rate above all else, but they can compromise visual fidelity. The data suggests that 4K Ultra should be avoided, as the 58.3 FPS average is not worth the marginal quality gain over High. For most users, the sweet spot is 1440p High, which offers a 75% higher frame rate than 4K High while maintaining excellent visual quality.

FAQ

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

A: Yes, but only at lower settings. The measured data shows 103.2 FPS at 4K Low and 80.3 FPS at 4K Medium. High settings drop to 59.4 FPS, and Ultra dips to 58.3 FPS, both of which are playable but not ideal.

Q: What is the best resolution for this hardware?

A: 1440p offers the best balance. At High settings, the combo produces 104 FPS, and even Ultra maintains 97.9 FPS. This is a significant step up from 4K, where the frame rate hovers around 60 FPS.

Q: Is the CPU or GPU the bottleneck at 1080p?

A: The GPU is the primary limiter even at 1080p. The frame rates scale predictably with resolution, and the CPU, with its 14 cores and high single-thread performance (Geekbench single-core score of 2803), has ample headroom. The 211.5 FPS at 1080p Low suggests the system is hitting a ceiling other than CPU processing power.

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

A: At High settings, the average frame rate drops from 148.5 FPS at 1080p to 59.4 FPS at 4K, a reduction of 60%. At Low settings, the drop is from 211.5 FPS to 103.2 FPS, a reduction of 51%.

Q: Should I use Ultra settings?

A: Only at 1080p or 1440p. At 1080p Ultra, the combo hits 142.6 FPS, and at 1440p Ultra it achieves 97.9 FPS. At 4K, Ultra produces 58.3 FPS, which is below the 60 FPS target, so High or Medium is a better choice.

Q: Does the RTX 4070's VRAM capacity matter for this game?

A: The 12 GB of GDDR6X memory is more than sufficient for Thief, a 2014 title. The game does not appear to be VRAM-limited, as the frame rate scaling is consistent across resolutions, pointing to compute or bandwidth limits rather than memory capacity.

How This Combo Ranks

In the grand scheme of tested hardware combinations, this pairing sits at rank 226 out of 1642 combos for Thief. That places it in the top 14% of all systems tested, which is a strong result for a mid-range CPU and upper-mid-range GPU. The Intel Core i5-14600K itself is a high performer, ranking in the 93rd percentile of all CPUs tested. Its nearest rival, the AMD Ryzen 9 5950X, scores nearly identically with a delta of just 0.2%, meaning the CPU choice has minimal impact on this game's performance. The RTX 4070, while ranking in the 81st percentile of all GPUs, is the more significant variable. Its nearest rival, the AMD Radeon RX Vega 56, is 0.6% behind in average benchmark score, but the RTX 4070's architecture and features likely provide a different experience in this specific title.

The combo rank of 226 suggests that while the individual components are strong, there are many systems that outperform this pairing in Thief. This is likely because the game, being older, does not fully utilize the CPU's multi-core capabilities (20 threads) or the GPU's newer features like ray tracing cores. The performance is primarily dictated by raw rasterization power, where the RTX 4070 is competent but not top-tier. The 1642 combos tested include configurations with more powerful GPUs that would naturally achieve higher frame rates, particularly at 4K. The 226th position is a solid mid-pack result, showing that this is a well-balanced system for the game, but not one that dominates the leaderboard.

GPU Role

The NVIDIA GeForce RTX 4070 is the defining component in this system's Thief performance. Its 12 GB of GDDR6X memory on a 192-bit bus provides 504.2 GB/s of bandwidth, which is adequate for the game's textures at all resolutions tested. The card's base clock of 1920 MHz and boost clock of 2475 MHz, combined with 5888 shading units, deliver the raw compute power needed to drive the frame rates seen in the data. The 184 texture mapping units and 64 ROPs handle the geometry and pixel output, with a pixel rate of 158.4 GPixel/s that becomes the limiting factor at 4K Ultra.

The GPU's performance in synthetic benchmarks is telling. It scores 26927 in Passmark G3D, placing it in the 81st percentile of all GPUs. Its nearest rival, the AMD Radeon RX Vega 56, is only 0.6% behind, but the RTX 4070's newer architecture (Ada Lovelace on a 5nm process) gives it efficiency advantages. The card's 29.15 TFLOPS of FP32 compute is substantial, but Thief does not heavily utilize compute shaders, so the benefit is limited. The 46 RT cores and 184 tensor cores are present but largely unused in this game, meaning the performance comes almost entirely from the traditional rasterization pipeline. The data shows that at 4K, the card is pushing close to its limits, with High and Ultra settings both hovering near 60 FPS. This indicates that the GPU is the primary bottleneck, and any upgrade to a higher-tier card would yield meaningful gains in this title.