Thief

The AMD Ryzen 7 5700X paired with the AMD Radeon RX 580 produces a clear and consistent pattern in Thief: the GPU becomes the decisive bottleneck as resolution climbs, while the 8-core CPU provides ample headroom. The measured data shows a classic scaling curve where the RX 580’s 8 GB of GDDR5 memory and 256-bit bus are the primary constraints at 4K, with average frame rates falling into the low-20s on the highest presets. At lower resolutions, the combo shifts into a more balanced state, though the frame rates still indicate that the graphics card, not the processor, is the limiting component.

Resolution Scaling

The frame rate deltas across resolutions in Thief clearly illustrate how the workload shifts from CPU-bound at 1080p to GPU-bound at 4K. At 1080p with Low settings, the combo delivers 83 FPS, which is a strong result and suggests the CPU is capable of feeding the GPU without issue. However, the moment resolution increases, the GPU struggles: 1440p Low drops to 57 FPS (a -31.3% change from 1080p Low), and 2160p Low falls to 33 FPS (a -42.1% change from 1440p). This pattern indicates that the RX 580’s fill rate and memory bandwidth are being saturated as pixel count rises.

For the High preset, the scaling is more severe. At 1080p High, the average is 48 FPS. Moving to 1440p High lowers it to 33 FPS (a -31.3% drop), and then 2160p High hits 19 FPS (a -42.4% drop). This shows that even at the same settings level, the resolution increase demands more than the GPU can provide, pushing frame times beyond playable levels at 4K. The Medium preset follows a similar curve: 1080p 63 FPS, 1440p 43 FPS, 2160p 25 FPS — with the 2160p result including a minimum of 22 FPS and maximum of 29 FPS, indicating instability. Ultra settings, which likely increase shader complexity and texture detail, are punishing: 1080p Ultra 46 FPS, 1440p Ultra 31 FPS, and 2160p Ultra 18 FPS.

The data suggests that the limiting component is unambiguously the GPU. The CPU’s 16 threads and high single-core performance (as seen in benchmarks) are more than sufficient for the game’s logic and draw calls; if the CPU were the bottleneck, we would expect a plateau across resolutions, not the consistent and dramatic FPS drops. The scaling efficiency is poor at high resolution, which is typical for a GPU that sits at the 53rd percentile among all graphics cards.

FAQ

Q: What is the average FPS at 1080p with Ultra settings for the Ryzen 7 5700X + RX 580 combo?

A: The measured average FPS is 46 FPS at 1920x1080 with Ultra settings. This is the lowest of the 1080p presets, but still within a playable range for a non-competitive title.

Q: At 4K resolution, which preset yields the highest average FPS?

A: The Low preset at 3840x2160 produces the highest average FPS of 33 FPS. The Medium preset is slightly lower at 25 FPS, while High and Ultra are 19 and 18 FPS respectively, all of which are below the 30 FPS threshold for comfortable play.

Q: Does the RX 580’s 8 GB VRAM capacity affect performance in Thief?

A: The 8 GB of GDDR5 memory is sufficient for the game’s texture demands, but the 256.0 GB/s memory bandwidth and 32 ROPs are the real constraints. At 4K, the 42.88 GPixel/s pixel rate is not enough to sustain high frame rates, as the data shows FPS below 25 for most presets.

Q: How does the combo rank among all tested combinations in Thief?

A: It ranks 3397 out of 3720 tested combos, placing it in the bottom 8.7% of all configurations. This is consistent with the RX 580’s position relative to other GPUs, despite the CPU’s strong 79th percentile ranking.

Q: What is the highest average FPS recorded for this combo?

A: The highest average FPS is 83 FPS, achieved at 1920x1080 resolution with Low settings. The next best is 63 FPS at Medium, showing a -24.1% drop from Low to Medium at the same resolution.

Q: Is the game more CPU-bound or GPU-bound at 1080p Low?

A: At 1080p Low, the frame rate of 83 FPS is well above the GPU’s limits at higher resolutions, but the CPU’s 3DMark single-thread score of 921 and multi-thread score of 6858 indicate it could push even higher if the GPU allowed. The combination is still limited by the GPU, as evidenced by the large FPS drops when moving to 1440p Low (57 FPS).

GPU Role

The Radeon RX 580 is the decisive component in this pairing, and its performance in Thief is characterized by its 8 GB of GDDR5 memory on a 256-bit bus, yielding 256.0 GB/s of bandwidth. The GPU’s base clock of 1257 MHz and boost clock of 1340 MHz, combined with 2304 shading units, 144 TMUs, and 32 ROPs, produce a pixel rate of 42.88 GPixel/s and a texture rate of 193.0 GTexel/s. In Thief, these numbers translate into a specific pattern: at 4K, the pixel rate is the limiting factor, as each frame demands 8.3 million pixels, and the GPU’s fill rate cannot cope, resulting in average FPS below 20 for High and Ultra.

The memory subsystem is critical. The card’s 8 GB of VRAM is ample for the game’s textures, but the bandwidth is the ceiling. At 1080p Medium, the combo achieves 63 FPS, but at 1440p Medium, the pixel count increases by 78% (from 2.1 million to 3.7 million), and the FPS drops to 43, a 31.7% decrease. This is a clear sign that the 256 GB/s bandwidth is being saturated. The same pattern appears at Low settings: 1080p 83 FPS, 1440p 57 FPS, 2160p 33 FPS — each doubling of resolution halves the frame rate, which is the classic signature of memory bandwidth limitations.

The GPU’s compute performance is reflected in its PassMark G3D score of 8813, which places it at the 53rd percentile. This score is only 0.1% higher than the average of the NVIDIA RTX 3050 Ti Mobile (12940) and 0.4% lower than the GTX 1660 SUPER (12986). In Thief, this translates to a card that can handle 1080p Medium (63 FPS) and 1440p Low (57 FPS) but is out of its depth at 4K, where the data shows only Low (33 FPS) and Medium (25 FPS) are above single digits.

The RX 580’s 8 GB VRAM is never exceeded in Thief at any setting, as the game is from 2014 and has modest texture memory requirements. The bottleneck is purely the graphics chip’s rasterization and bandwidth, not capacity. Therefore, the FPS across all resolutions is a direct function of the GPU’s 42.88 GPixel/s and 193.0 GTexel/s rates, which are too low for 4K.

How This Combo Ranks

The combination of the Ryzen 7 5700X and the RX 580 in Thief is ranked 3397th out of 3720 tested combos, placing it in the bottom 8.7% of all configurations. This low ranking is predominantly due to the GPU’s average benchmark score of 12928, which is in the 53rd percentile for all GPUs. The CPU, by contrast, is in the 89th percentile (with an average benchmark score of 27578), but the GPU’s weakness drags the overall performance down.

The rank is especially poor at high resolutions. The combo’s performance at 4K (e.g., 19 FPS High, 18 FPS Ultra) is below the 24 FPS threshold for cinematic frame rates, making the experience unplayable. At 1440p, the results are also suboptimal, with Ultra averaging 31 FPS and High 33 FPS. Only at 1080p do the numbers become reasonable, with 1080p Medium at 63 FPS and 1080p Low at 83 FPS.

The ranking is influenced by the CPU’s ability to feed the GPU, but it is not the limiting factor. The CPU’s nearest rival, the Intel Core i5-12600K, has an identical average score of 27578, and the AMD Ryzen 7 5800 is 0.2% lower. The Ryzen 5 7600X is 0.2% higher. This shows that the CPU is a solid performer in the 79th percentile, but the GPU’s 53rd percentile rank keeps the combo low in the overall list.

The ranking of 3399/3720 is a reflection of the GPU’s age and the game’s resolution scaling. For a title released in 2014, the RX 580’s 8 GB VRAM and 256-bit bus are sufficient at 1080p, but the game’s 4K modes are too demanding. The result is a combo that is not competitive in the higher-resolution tier, which is why it falls below the 3000th position.

CPU Role

The AMD Ryzen 7 5700X is a 8-core, 16-thread processor based on the Zen 3 architecture, codenamed Vermeer, with a base clock of 3.4 GHz and a boost clock of 4.6 GHz. In Thief, the CPU’s role is to maintain a high frame rate by providing enough single-thread performance for the game’s main logic and enough multi-thread performance for background tasks. The CPU’s 3DMark single-thread score is 921, and the multi-thread scores (8-thread: 5768, max-thread: 6850) show robust scaling. In the game’s benchmark, the CPU does not bottleneck the GPU at 1080p, as the 83 FPS Low result is higher than most GPU-bound results at 1440p.

The CPU’s cache configuration, with 32 MB of shared L3 cache and 512 KB of L2 per core, helps with the game’s data access patterns. The passmark integer math score of 92749 and floating point of 51842 indicate strong arithmetic throughput. However, Thief is not a CPU-heavy game; it is designed to scale with GPU power. The CPU’s performance at 1080p Low (83 FPS) is the highest of all settings, but the CPU is never the bottleneck because the GPU is the limiting factor at all resolutions. For example, at 4K Low, the FPS drops to 33, which is a 60% reduction from 1080p Low, proving the GPU is the constraint.

The CPU’s 79th percentile rank among all CPUs demonstrates that it is above average, but its performance in Thief is overshadowed by the GPU. The CPU’s nearest rivals in benchmark scores—the Core i5-12600K (0% delta), Ryzen 7 5800 (0.2% faster), and Ryzen 5 7600X (0.2% faster)—all have similar CPU performance, but in the game, the FPS differences are solely due to the GPU. Therefore, while the CPU is a strong component, the data shows it is not the limiting factor in this combo; the RX 580 is.

Measured FPS Breakdown

The measured FPS data for the Ryzen 7 5700X + RX 580 in Thief shows a clear performance hierarchy. At 1920x1080, the results are as follows:

• Low: 83 FPS average (no min/max provided)
• Medium: 63 FPS average, with a minimum of 54 FPS and maximum of 72 FPS
• High: 48 FPS average (no min/max)
• Ultra: 46 FPS average (no min/max)

The difference between Low and Medium is a 24.1% drop, while Medium to High is a 23.8% drop, and High to Ultra is a 4.2% drop. This shows that the Medium preset offers a good balance, but the Low preset is the only one that fully utilizes the CPU’s potential, with a 63 FPS result.

At 2560x1440, the performance decreases significantly:

• Low: 57 FPS average
• Medium: 43 FPS average (min 37, max 50)
• High: 33 FPS average
• Ultra: 31 FPS average

The 1440p results show that the Medium preset is 24.6% slower than 1080p Medium (63 to 43 FPS), and the Ultra is 32.6% slower (46 to 31 FPS). The Low preset at 1440p is 31.3% slower than 1080p Low (83 to 57 FPS). This resolution scaling is less steep for Low (57 vs 83) than for High (33 vs 48), indicating that the GPU’s ROPs and texture units are the limiting factor.

At 3840x2160, the performance is severely limited:

• Low: 33 FPS average
• Medium: 25 FPS average (min 22, max 29)
• High: 19 FPS average
• Ultra: 18 FPS average

The 4K results show that even Low (33 FPS) is below the 40 FPS threshold for smooth gameplay. The Medium preset has a minimum of 22 FPS, which is below the 24 FPS threshold for cinematic feel. High and Ultra are both in the 18-19 FPS range, which is unplayable for action titles. The scaling from 1440p to 2160p is a 42.1% drop for Low (57 to 33), a 41.2% drop for Medium (43 to 25), a 42.4% drop for High (33 to 19), and a 41.9% drop for Ultra (31 to 18). This consistent 40%+ reduction indicates that the GPU is absolutely the bottleneck.

Settings Recommendations

Based on the measured FPS data, the optimal settings for the Ryzen 7 5700X + RX 580 in Thief depend on the resolution target. At 1920x1080, the High preset at 48 FPS is the best balance of visual quality and performance, as it is above the 45 FPS playable threshold. The Medium preset at 63 FPS is also a strong choice, offering a 30% higher frame rate than High with a slight reduction in quality. The Ultra preset at 46 FPS is only 4% lower than High, but it is still a good option for those who prefer maximum settings, as it remains above 45 FPS.

At 2560x1440, the Low preset at 57 FPS is the only preset that reaches a smooth frame rate, but it is a low-quality setting. The Medium preset at 43 FPS is acceptable for less demanding players, but the High at 33 FPS and Ultra at 31 FPS are not recommended for fast-paced gameplay. For a balance of quality and speed at 1440p, the Medium setting is the highest that still offers a 40+ FPS average.

At 3840x2160, the data is clear: no preset achieves a playable frame rate. The Low preset at 33 FPS is the best, but it is still below the 60 FPS mark and has a minimum of 22 FPS in Medium. The Ultra at 18 FPS and High at 19 FPS are not viable for gameplay. Therefore, the recommendation is to avoid 4K with this combo, or to lower the resolution to 1440p or 1080p.

The Medium preset at 1080p provides a good experience with a 63 FPS average and a minimum of 54 FPS, ensuring a stable frame time. The Low preset at 1080p is the best for a high refresh rate monitor, but the quality is low. In summary, the best settings per the measured rows are 1080p Medium (63 FPS) for a balanced experience, 1080p High (48 FPS) for a quality, and 1440p Low (57 FPS) for a higher resolution. The 4K presets are not recommended due to the low frame rates.