Thief

# Thief with AMD Ryzen 5 5500 + NVIDIA GeForce RTX 4090

The pairing of AMD's six-core Ryzen 5 5500 with NVIDIA's flagship RTX 4090 creates an interesting imbalance in Thief, a 2014 stealth title that is far more dependent on raw GPU throughput than on modern CPU features. The measured frame rates across all resolutions and settings presets indicate that this combination delivers playable performance even at 4K Ultra, though the scaling patterns reveal where the bottleneck shifts. With the RTX 4090 sitting in the 91st percentile of all GPUs and the Ryzen 5 5500 in the 79th percentile of all CPUs, the data suggests the processor is the limiting factor at lower resolutions, while the GPU takes over as the primary constraint at 4K.

Resolution Scaling

The FPS drop from 1080p to 4K follows a clear pattern that highlights the GPU-bound nature of Thief at higher resolutions. At Low settings, the average frame rate falls from 148.9 FPS at 1920x1080 to 133.6 FPS at 2560x1440, then to 111.2 FPS at 3840x2160 — a total reduction of 37.7 FPS from 1080p to 4K. This represents a 25.3% performance loss, which is relatively modest compared to what would be expected if the GPU were the sole bottleneck throughout.

At Ultra settings, the scaling is steeper. The average drops from 119.5 FPS at 1080p to 106.2 FPS at 1440p, then to 82.9 FPS at 4K — a 36.6 FPS reduction overall, or 30.6% lower than the 1080p result. The fact that the percentage drop from 1080p to 4K is larger at Ultra (30.6%) than at Low (25.3%) indicates that higher quality settings increase the GPU workload proportionally, making the GPU more of a limiting factor at 4K Ultra.

The 1440p to 4K transition reveals the most significant scaling cliff. At High settings, the FPS goes from 111.1 at 1440p to 85.5 at 4K — a 25.6 FPS drop. At Medium, the drop is 19.4 FPS (117.9 to 98.5). This pattern suggests that 4K resolution imposes a substantial additional load on the RTX 4090's 24 GB of GDDR6X memory and 1.01 TB/s bandwidth, regardless of quality preset. The data indicates that at 1080p, the Ryzen 5 5500's six cores and 12 threads are likely holding back the RTX 4090, as the GPU's massive compute resources are not being fully utilized at that resolution.

GPU Role

The RTX 4090's specifications paint a picture of a GPU that is vastly over-provisioned for a game like Thief, yet the measured results show it still has limits at 4K. The GPU operates with a boost clock of 2520 MHz and a base clock of 2235 MHz, built on the AD102 chip with 16,384 shading units, 512 texture mapping units, and 176 ROPs. Its 82.58 TFLOPS of FP32 performance is more than enough to handle Thief's DirectX 11-era rendering, but the memory subsystem — 24 GB of GDDR6X on a 384-bit bus with 1.01 TB/s bandwidth — becomes the relevant factor at 4K.

The benchmark data shows the RTX 4090 achieving its highest frame rates at 1080p Low with 148.9 FPS, which is likely close to the ceiling imposed by the CPU. As resolution increases, the GPU's role becomes more dominant. At 4K Ultra, the 82.9 FPS average demonstrates that even this flagship GPU is challenged by the combination of high resolution and maximum quality settings. The GPU's PassMark G3D score of 38,194 places it in the 91st percentile of all GPUs, yet Thief's 4K Ultra demands still push it to its limits.

The VRAM capacity is not a concern here — 24 GB is far more than Thief can utilize. Instead, the data suggests that the GPU's raw fill rate and memory bandwidth determine performance at 4K. The pixel rate of 443.5 GPixel/s and texture rate of 1,290.2 GTexel/s are more than adequate for a 2014 title, but the resolution scaling from 1440p to 4K shows a consistent 15-20% performance penalty across all settings, indicating that memory bandwidth is the constraining factor at 4K.

CPU Role

The Ryzen 5 5500 provides six cores and 12 threads based on the Zen 3 architecture, with a base clock of 3.60 GHz and a boost clock of 4.20 GHz. Its Cinebench R23 multicore score of 16,429 and single-core score of 2,319 suggest it is a capable mid-range processor, but its 3DMark single-thread score of 836 and 16-thread score of 5,386 reveal that it may struggle to keep up with the RTX 4090 in CPU-bound scenarios.

The evidence for CPU limitation appears clearly at 1080p. The difference between 1080p and 1440p at the same settings is relatively small — for example, High settings yield 124.7 FPS at 1080p versus 111.1 FPS at 1440p, a difference of 13.6 FPS. This relatively modest gap suggests that the CPU is already near its limit at 1080p, preventing the GPU from achieving its full potential. The fact that 1080p Low (148.9 FPS) is only 11.5% higher than 4K Low (111.2 FPS) further supports this interpretation, as a purely GPU-bound scenario would show a much larger difference.

The CPU's nearest rivals in the benchmark database include the Intel Core i5-12500 with an average score of 20,897 and a delta of -0.1%, and the AMD Ryzen 5 PRO 4655GE with a score of 20,900 and a delta of -0.1%. These comparisons show that the Ryzen 5 5500's overall performance is on par with these alternatives, but none of them would dramatically change the 1080p bottleneck. The CPU's PassMark single-thread score of 3,058 and multithread score of 19,330 indicate that Thief, which likely relies on a few main threads, may not fully utilize all 12 threads.

FAQ

Q: Is the RTX 4090 overkill for Thief?

A: At 1080p, yes — the data shows the Ryzen 5 5500 limits performance to between 119.5 and 148.9 FPS, which is far below what the RTX 4090 could deliver. At 4K Ultra, the GPU is more justified, achieving 82.9 FPS, but this remains well above playable thresholds.

Q: What is the best resolution for this combination?

A: The data indicates 2560x1440 at High settings provides 111.1 FPS, which balances visual quality with high frame rates. At 4K, even Low settings only reach 111.2 FPS, while Ultra drops to 82.9 FPS.

Q: Does the CPU bottleneck disappear at 4K?

A: The scaling data suggests the GPU becomes the primary bottleneck at 4K, but the CPU still matters. The difference between 1440p and 4K at Low settings (133.6 to 111.2 FPS) shows a 22.4 FPS drop, indicating the GPU workload increases significantly, but the CPU is no longer the sole limiting factor.

Q: How does the Ryzen 5 5500 compare to its nearest rivals in CPU benchmarks?

A: The Ryzen 5 5500's average benchmark score of 20,875 is essentially tied with the Intel Core i5-12500 (20,897, delta -0.1%) and AMD Ryzen 5 PRO 4655GE (20,900, delta -0.1%). It is marginally ahead of the AMD EPYC 7J13 (20,845, delta 0.1%).

Q: Why is the frame rate difference between 1080p and 1440p so small?

A: At High settings, the difference is 13.6 FPS (124.7 to 111.1), and at Low it's 15.3 FPS (148.9 to 133.6). This small gap indicates the CPU is the limiting factor at 1080p, preventing the GPU from showing its full potential.

Q: What is the worst-case performance scenario in this data?

A: The lowest measured average is 82.9 FPS at 4K Ultra, which is still highly playable. The combination never drops below 80 FPS in any measured configuration, indicating robust performance across all tested settings.

Measured FPS Breakdown

At 1920x1080, the average frame rates range from 148.9 FPS at Low settings to 119.5 FPS at Ultra. The Medium preset delivers 137.3 FPS, while High achieves 124.7 FPS. This creates a spread of 29.4 FPS between the lowest and highest quality settings at 1080p. The ordering is consistent: Low > Medium > High > Ultra, with each step up in quality costing roughly 11-13 FPS.

Moving to 2560x1440, the performance ceiling drops. Low settings produce 133.6 FPS, Medium delivers 117.9 FPS, High achieves 111.1 FPS, and Ultra bottoms out at 106.2 FPS. The difference between Low and Ultra at 1440p is 27.4 FPS, slightly tighter than at 1080p. Notably, the gap between High and Ultra narrows to just 4.9 FPS at 1440p, suggesting diminishing returns from the highest quality preset.

At 3840x2160, the frame rates compress further. Low settings yield 111.2 FPS, Medium delivers 98.5 FPS, High achieves 85.5 FPS, and Ultra produces 82.9 FPS. The total spread is 28.3 FPS, but the relative differences matter more: High to Ultra is only 2.6 FPS, while Low to Medium is 12.7 FPS. This indicates that at 4K, the quality preset has less impact on performance than at lower resolutions, as the GPU is already working near its limits.

The progression across resolutions at each setting shows consistent patterns. At Low, the FPS drops from 148.9 at 1080p to 133.6 at 1440p to 111.2 at 4K — a cumulative 25.3% loss. At Ultra, the drop is from 119.5 to 106.2 to 82.9 — a 30.6% loss. The data reveals that Ultra settings are proportionally more demanding at 4K than Low settings, which is expected given the increased shading and texture work.

Settings Recommendations

For players targeting the highest possible frame rates at 1080p, the Low preset at 148.9 FPS is the clear choice, but this sacrifices visual quality. The Medium preset at 137.3 FPS offers a better balance, delivering only 11.6 FPS less than Low while providing improved visuals. High settings at 124.7 FPS are also viable, but the jump from Medium to High costs 12.6 FPS — the largest single-step penalty at 1080p.

At 1440p, the Medium preset at 117.9 FPS emerges as the most practical recommendation. It sits well above the 60 FPS threshold and provides a healthy margin over the 106.2 FPS of Ultra. The High preset at 111.1 FPS is nearly identical in performance to Medium and could be preferred if visual fidelity matters more. The Low preset at 133.6 FPS is the best option for competitive play, though the visual compromise is substantial.

For 4K gaming, the data suggests that High settings at 85.5 FPS offer the best experience, as the step to Ultra only gains 2.6 FPS (82.9 FPS) — an imperceptible difference in actual gameplay. Medium at 98.5 FPS is the strongest choice for maintaining higher frame rates at 4K, providing a 13 FPS improvement over High while still delivering good visual quality. Low at 111.2 FPS is recommended only for players who prioritize smoothness above all else, as the visual downgrade at 4K is more noticeable than at lower resolutions.

The overall recommendation across all resolutions is to use Medium settings at 1080p or 1440p, and High settings at 4K. This approach maximizes the balance between visual quality and performance, based on the measured data. The RTX 4090's raw power means that even at 4K Ultra, the game remains playable at 82.9 FPS, but the marginal gains from Ultra over High do not justify the performance cost.