Thief

Thief, the 2014 stealth classic, still poses an interesting challenge for modern hardware. The combination of the Intel Core i5-9400 and NVIDIA GeForce RTX 3070 produces a broad spread of frame rates depending on the resolution and quality preset, as shown in the measured data. The overall performance rank for this pairing is 978 out of 1642 tested combinations, placing it in the upper-middle tier of systems. The data reveals a configuration that is heavily influenced by the graphics card's capabilities, though the six-core processor also has a distinct role to play in the final experience.

Resolution Scaling

The frame rate data shows a clear and predictable scaling pattern as resolution increases. At 1080p with High settings, the system delivers an average of 95.1 FPS. Moving to 1440p drops that average to 84.4 FPS, a reduction of roughly 11%. The jump to 4K is more punishing, with the average falling to 47.5 FPS, which is a significant 44% decrease from the 1080p result. This steep decline when moving to 3840x2160 indicates that the GPU is becoming the primary limiting factor, as the pixel count quadruples and places a much heavier load on the renderer.

The pattern holds across other presets. With Medium settings, the system averages 108.6 FPS at 1080p, 96.2 FPS at 1440p, and 64.5 FPS at 4K. The delta between 1080p and 1440p is a modest 12.4 FPS, while the delta between 1440p and 4K is a much larger 31.7 FPS. This non-linear drop suggests that the RTX 3070 has enough headroom at lower resolutions to keep pace with the CPU, but at 4K, the raw pixel throughput demands of the Ampere architecture become the bottleneck. The Low preset data reinforces this, showing 120 FPS at 1080p, 107.1 FPS at 1440p, and 83.3 FPS at 4K—the smallest percentage drop of any preset, but still a clear sign that the GPU is working harder at higher resolutions.

Benchmark results indicate that the RTX 3070 is a 72nd-percentile GPU, which is a high standing overall, but the 4K results here are only moderate. The gap between the 1080p and 4K High scores is a 47.6 FPS difference, which is substantial. This suggests that while the card is capable of high refresh rates at 1080p and 1440p, the 4K experience will be more about visual fidelity than raw speed. The data clearly shows that the system is not resolution-independent; the scaling is steep, and the 4K Ultra result of 46.3 FPS is the lowest in the entire set, confirming that the GPU is the decisive component at that resolution.

GPU Role

The NVIDIA GeForce RTX 3070 is built on the Ampere architecture and is equipped with 8 GB of GDDR6 memory on a 256-bit bus, providing 448.0 GB/s of bandwidth. The card has a base clock of 1500 MHz and a boost clock of 1725 MHz. These specifications are central to understanding the measured frame rates. The memory bandwidth, in particular, is a critical resource for a game like Thief, which features dense, shadow-heavy environments that can tax memory throughput.

The data shows that the GPU is the dominant factor in performance scaling. When settings are dropped from Ultra to Low at 4K, the average frame rate jumps from 46.3 FPS to 83.3 FPS, an improvement of 37 FPS. This is a massive swing that can only be attributed to the GPU's ability to handle the reduced shading and texture work. The RTX 3070’s 5888 shading units and 96 ROPs are clearly capable of handling the lower settings with ease, but the Ultra preset, which likely introduces more complex lighting and shadow calculations, brings the card to its knees at 4K.

The GPU’s benchmark scores support its high-end positioning. It scores 22214 in Passmark G3D and 123479 in Geekbench OpenCL, putting it in the 72nd percentile of all GPUs. In comparison to its nearest rivals, it sits close to the AMD Radeon RX 6600 XT, which has an average score of 27985, a delta of 0.9%. This indicates that the RTX 3070 is a strong performer, but not a class leader. The 8 GB VRAM capacity is sufficient for the measured resolutions, as there is no evidence in the data of a memory capacity bottleneck causing frame drops or stutters. The boost clock of 1725 MHz is the ceiling for the card's speed, and the frame rates suggest it is being utilized effectively, particularly at 1080p where the CPU can feed it data quickly.

Settings Recommendations

The measured data provides a clear hierarchy of presets for this hardware combination. At 1080p, the Ultra preset delivers 93.3 FPS, which is only slightly lower than the High preset's 95.1 FPS. The difference between High and Ultra is a negligible 1.8 FPS, meaning players can enable the highest settings at this resolution without a meaningful performance penalty. The Low preset hits 120 FPS, but the visual sacrifice is unnecessary given the headroom available.

At 1440p, the High preset delivers 84.4 FPS, while Ultra drops to 81.2 FPS. This 3.2 FPS difference is still small, making Ultra a viable option for a smoother visual experience. However, the Medium preset at 96.2 FPS offers a more comfortable margin above 60 FPS, which might be preferable for those who prioritize stability. The data suggests that High is the sweet spot at 1440p, balancing the 84.4 FPS result with the visual enhancements.

The 4K resolution is where the choices become more critical. The High preset at 47.5 FPS is below the 60 FPS target, and Ultra is even lower at 46.3 FPS. To achieve a playable experience, the Medium preset at 64.5 FPS is the best option, as it crosses the 60 FPS threshold. The Low preset at 83.3 FPS is also viable, but it sacrifices significant visual quality. Based on the measured rows, the optimal strategy is to use High at 1080p, High at 1440p, and Medium at 4K to maintain a consistent frame rate without compromising too much on visual fidelity.

FAQ

Q: What is the average frame rate at 1080p with Ultra settings?

A: The measured average is 93.3 FPS. This is very close to the High preset result of 95.1 FPS, making Ultra a free upgrade at this resolution.

Q: Is this system capable of 4K gaming in Thief?

A: It can, but with compromises. The Medium preset achieves 64.5 FPS, while High and Ultra fall below 50 FPS at 47.5 and 46.3 FPS respectively. The data shows that 4K is playable only if the settings are moderated.

Q: How does the RTX 3070 compare to its nearest rival, the RX 6600 XT?

A: The RTX 3070 has an average benchmark score of 28238, which is 0.9% higher than the RX 6600 XT's score of 27985. The performance difference is minimal in synthetic tests.

Q: How much of a frame rate drop occurs when moving from 1440p to 4K on High settings?

A: The average frame rate drops from 84.4 FPS at 2560x1440 to 47.5 FPS at 3840x2160. This is a reduction of 36.9 FPS, which is a steep penalty for the higher resolution.

Q: Does the 8 GB VRAM of the RTX 3070 cause any issues in Thief?

A: The measured data shows no signs of a VRAM capacity limit. The frame rates scale consistently with resolution and settings, with no indication of memory-related stuttering or crashes.

Q: What is the best setting to use for a stable 60 FPS experience at 4K?

A: The Medium preset is the only one that meets this target, with an average of 64.5 FPS. The High and Ultra presets both fall short of the 60 FPS mark.

CPU Role

The Intel Core i5-9400 is a six-core, six-thread processor based on the Coffee Lake architecture. It has a base clock of 2.90 GHz and a boost clock of 4.10 GHz, with 9 MB of shared L3 cache. The processor is not unlocked for overclocking, but its stock clocks are sufficient for this gaming workload. The CPU's benchmark scores are modest, with a Cinebench R23 multi-core score of 7969 and a single-core score of 1125, placing it in the 50th percentile of all CPUs.

In the context of Thief, the CPU’s role is less pronounced than the GPU's, but it is not irrelevant. At 1080p, the frame rates are high across all presets, with the Low preset hitting 120 FPS. This suggests that the i5-9400 is capable of feeding the RTX 3070 enough data to avoid a CPU bottleneck at lower resolutions. The difference between the Low and Ultra presets at 1080p is 26.7 FPS, which is a larger gap than the 12.5 FPS difference between High and Ultra. This indicates that the CPU has less impact on the Ultra preset, where the GPU is doing more work.

The CPU's performance is close to its nearest rivals, with the Intel Core i3-10305 having an average score of 2300 and a delta of 0.2%, and the Intel Xeon E-2134 at 2295 with a delta of 0.4%. This shows that the i5-9400 is a middle-of-the-pack processor. At 4K, the CPU's influence wanes further, as the frame rate drops are more attributable to the GPU's pixel throughput limits. The data demonstrates that the i5-9400 is not a bottleneck at 1080p, but it is also not a high-end part that would excel in CPU-intensive scenarios. The six threads are adequate for a 2014 title like Thief, which was designed for older hardware, and the boost clock of 4.10 GHz provides enough single-threaded performance for the game's logic.