Thief

# Thief with AMD Ryzen 5 3600 + NVIDIA GeForce RTX 5090 — Benchmark Analysis

FAQ

Q: What is the average FPS at 1080p Ultra settings for this combo?

A: The system delivers an average of 102 FPS at 1920x1080 with Ultra settings, which is the most demanding preset tested at that resolution.

Q: How does the CPU compare to its nearest rival in synthetic benchmarks?

A: The AMD Ryzen 5 3600 scores 18,129 on average, which is essentially tied with the Intel Core i5-11400 (18,150, -0.1% delta) and the AMD Ryzen 5 7535HS (18,101, +0.2% delta). The margin is negligible in all cases.

Q: What is the GPU's percentile ranking among all tested graphics cards?

A: The NVIDIA GeForce RTX 5090 sits in the 94th percentile of all GPUs, reflecting its top-tier synthetic performance with an average benchmark score of 84,306.

Q: Does the RTX 5090's nearest rival show a meaningful performance gap?

A: No. The closest competitor, the NVIDIA GeForce RTX 5090 D, scores 84,241, just 0.1% behind. The AMD Radeon PRO W6600 is the furthest rival at 83,209, a 1.3% delta.

Q: What is the largest FPS gap between settings at any resolution?

A: At 3840x2160, the spread from Low (94.3 FPS) to Ultra (75.7 FPS) is 18.6 FPS. At 1080p, the gap is larger: Low runs at 126.4 FPS while Ultra drops to 102 FPS, a 24.4 FPS difference.

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

A: The combo ranks 727th out of 1,642 tested combinations, placing it in the upper-middle portion of the database for this specific game.

GPU Role

The NVIDIA GeForce RTX 5090 is a Blackwell 2.0 architecture part built on TSMC's 5 nm process, featuring 92,200 million transistors on a 750 mm² die. It carries 32 GB of GDDR7 memory across a 512-bit bus, yielding 1.79 TB/s of bandwidth. The memory clock runs at 1750 MHz, translating to 28 Gbps effective. Base clock is 2017 MHz with a boost of 2407 MHz.

In Thief, the GPU's massive memory pool and bandwidth are not the limiting factor at lower resolutions. The data shows that at 1080p, the FPS ceiling appears constrained by the CPU rather than the GPU. The RTX 5090 is capable of far higher frame rates, but the Ryzen 5 3600's six cores and twelve threads at 3.60 GHz base (4.20 GHz boost) create a bottleneck. This is evident when comparing the 1080p Low result of 126.4 FPS against the 4K Low result of 94.3 FPS — the scaling is not proportional to pixel count, indicating CPU limitation at 1080p.

The GPU's shading units (21,760), texture mapping units (680), and render output units (176) provide substantial raw throughput, with a pixel rate of 423.6 GPixel/s and texture rate of 1,636.8 GTexel/s. These resources handle Thief's DirectX 11 workload efficiently, as the game's age (released 2014-02-24) means it does not stress modern GPU features. The RTX 5090's FP32 performance of 104.8 TFLOPS is largely idle here, as Thief's engine does not require such compute horsepower.

At 4K, the GPU becomes the primary driver of performance. The 32 GB VRAM is overkill for Thief, which does not need anywhere near that capacity, but the bandwidth and rasterization throughput ensure consistent frame delivery. The data shows the RTX 5090 maintains playable frame rates across all settings at 4K, with the lowest result being 74.6 FPS at High settings. This indicates the GPU architecture handles the resolution scaling well, even if the CPU holds back lower-resolution performance.

Resolution Scaling

The measured FPS data reveals a clear pattern of CPU limitation at 1080p transitioning to GPU limitation at 4K. At 1920x1080, Low settings produce 126.4 FPS, while Ultra settings drop to 102 FPS — a 19.3% reduction. This relatively modest drop suggests the CPU is the bottleneck, as GPU load increases with settings but the frame rate does not collapse.

Moving to 2560x1440, the same settings spread shows Low at 111.5 FPS and Ultra at 89 FPS, a 20.2% reduction. The absolute numbers drop by roughly 12-15% compared to 1080p, which is less than the pixel count increase (78% more pixels) would suggest. This again points to CPU limitation, though the GPU is starting to become more relevant.

At 3840x2160, the scaling becomes more pronounced. Low settings yield 94.3 FPS, while Ultra drops to 75.7 FPS, a 19.7% reduction. The jump from 1440p to 4K (2.25x pixels) results in only a 15-18% FPS drop, which is less than expected if the GPU were the sole bottleneck. This suggests the Ryzen 5 3600 continues to constrain even at 4K, though to a lesser degree.

The data indicates that Thief is not heavily GPU-bound even at 4K. The RTX 5090's raw power means the game's engine, designed for 2014-era hardware, cannot fully utilize the GPU's capabilities. The 1.79 TB/s bandwidth and 32 GB memory are far beyond what Thief requires. The limiting factor across all resolutions is the CPU's single-thread and multi-thread performance, which places a ceiling on frame delivery. The 3dmark single-thread score of 696 and Cinebench R23 single-core score of 2,124 are modest by modern standards, and Thief's engine does not scale well beyond a few threads.

Measured FPS Breakdown

At 1920x1080, the combo delivers its highest frame rates. Low settings average 126.4 FPS, Medium drops to 116.4 FPS, High comes in at 105 FPS, and Ultra lands at 102 FPS. The step from Low to Medium is 10 FPS, while Medium to High is 11.4 FPS, and High to Ultra is just 3 FPS. This suggests diminishing returns on GPU load at the highest settings, with the CPU holding steady around 102-105 FPS regardless of visual fidelity.

At 2560x1440, the pattern repeats with lower absolute numbers. Low settings average 111.5 FPS, Medium achieves 101 FPS, and both High and Ultra tie at 89 FPS. The identical High and Ultra results are notable — the extra GPU work at Ultra does not affect frame rate, confirming the CPU is the limiting factor. The 22.5 FPS gap between Low and Ultra at this resolution is consistent with the 1080p spread.

At 3840x2160, the RTX 5090 begins to show its strength. Low settings average 94.3 FPS, Medium runs at 85.6 FPS, High drops to 74.6 FPS, and Ultra manages 75.7 FPS. Interestingly, Ultra is 1.1 FPS faster than High, which is within measurement noise but suggests the GPU is not the bottleneck even here. The 19.7 FPS difference between Low and Ultra at 4K is the smallest absolute spread across all resolutions, indicating that the engine's CPU overhead dominates.

Across all resolutions, the data shows a consistent pattern: the Ryzen 5 3600's performance ceiling is around 126 FPS at 1080p Low, and this ceiling scales down as resolution increases. The GPU's 94th percentile standing in synthetic benchmarks does not translate to proportional gains in Thief, as the game's 2014 engine cannot leverage the RTX 5090's modern architecture. The measured FPS numbers reflect a system where the CPU is the primary limiter, with the GPU having ample headroom.

How This Combo Ranks

The combo ranks 727th out of 1,642 tested combinations in Thief, placing it in the 44th percentile of all tested combos. This rank is surprisingly low given the RTX 5090's 94th percentile standing among GPUs and the Ryzen 5 3600's 76th percentile among CPUs. The data suggests that Thief's engine is not well-suited to this hardware pairing, as the game's age and CPU-bound nature prevent the expensive GPU from delivering top-tier results.

The CPU's synthetic benchmarks show it is competitive with its immediate rivals. The Ryzen 5 3600 scores 18,129 on average, essentially matching the Intel Core i5-11400 (18,150, -0.1% delta) and the AMD Ryzen 5 7535HS (18,101, +0.2% delta). The AMD EPYC 9274F scores 18,189, just 0.3% higher. These tiny deltas suggest the CPU is not unusually weak — it performs as expected for its class.

The GPU's nearest rivals in synthetic benchmarks are equally close. The RTX 5090 D scores 84,241 (0.1% behind), the RTX 5050 Mobile scores 84,171 (0.2% behind), and the AMD Radeon PRO W6600 scores 83,209 (1.3% behind). The NVIDIA CMP 40HX is 1.6% ahead at 85,637. These sub-2% deltas indicate the RTX 5090 is well-matched to its peers in raw compute, but this does not translate to a high rank in Thief.

The 727th rank out of 1,642 combos means 915 other combinations perform better in this game. This is a stark contrast to the hardware's synthetic standing. The data implies that Thief rewards CPU single-thread performance and older GPU architectures that are better optimized for its DirectX 11 pipeline. The RTX 5090's modern Blackwell architecture, with its 170 RT cores and 680 tensor cores, is largely unused by Thief, and the CPU's Zen 2 architecture, while competent, does not provide the high single-thread performance needed to push frame rates higher. The combo is functional and playable across all tested settings, but it does not leverage the full potential of either component in this specific title.