Thief

The pairing of AMD’s 16-core Ryzen 9 5950X with NVIDIA’s flagship GeForce RTX 5090 produces a compelling dataset for Thief, a 2014 stealth title that scales predictably across resolutions. The measured frame rates show a system that is heavily GPU-limited at 4K, yet the CPU’s substantial thread count keeps minimum performance robust even when settings are lowered. This analysis breaks down the measured FPS, the role of each component, and what the scaling patterns reveal about the bottleneck at each preset.

Resolution Scaling

The FPS deltas from 1080p to 4K clearly illustrate where the RTX 5090 becomes the limiting factor. At High settings, the average frame rate drops from 139 FPS at 1920x1080 to 124.2 FPS at 2560x1440, then falls sharply to 89.9 FPS at 3840x2160. That represents a 35% reduction from 1080p to 4K, a pattern typical of a GPU-bound scenario where pixel throughput dictates performance.

The scaling is even more pronounced at Low settings, where the 1080p average of 171.3 FPS drops to 147.4 FPS at 1440p and then to 127.5 FPS at 4K. The 43.8 FPS gap between 1080p and 4K at Low settings is larger than the 49.1 FPS gap at High settings, suggesting that lowering the preset removes CPU-side constraints and exposes the raw pixel-pushing limits of the RTX 5090. Conversely, at Ultra settings, the 4K average of 83.6 FPS is only 54.2 FPS below the 1080p result of 137.8 FPS, indicating that the Ultra preset’s additional rendering work compresses the resolution headroom.

The data indicates that the RTX 5090’s 32 GB of GDDR7 memory and 1.79 TB/s bandwidth are not stressed by Thief’s 2014-era assets, even at 4K. The bottleneck at 4K is purely computational, tied to the GPU’s 104.8 TFLOPS FP32 throughput. At 1080p, however, the frame rates above 170 FPS suggest that the Ryzen 9 5950X’s single-thread performance, evidenced by its 3dmark_single_thread score of 944, is sufficient to feed the GPU without creating a CPU ceiling. The scaling from 1440p to 4K is nearly linear in terms of pixel count, which reinforces that the GPU is the dominant constraint at higher resolutions.

FAQ

Q: What is the average FPS at 4K Ultra settings?

A: The measured average is 83.6 FPS at 3840x2160 with Ultra settings, making it the most demanding configuration in the dataset.

Q: How much faster is 1080p Low compared to 4K Ultra?

A: The 1080p Low average of 171.3 FPS is more than double the 4K Ultra result, with a difference of 87.7 FPS.

Q: Does the RTX 5090’s 32 GB VRAM show any benefit in this game?

A: Benchmark results show no VRAM-related stutter or performance penalty, as the frame rates scale consistently with resolution and settings without anomalies.

Q: What is the performance gap between the Ryzen 9 5950X and its closest rival?

A: The Ryzen 9 5950X scores 49062 on average, which is 0.2% behind the Intel Core i5-14600K’s 49166 and 0.6% behind the Intel Core i5-14600KF’s 49367.

Q: Which setting provides the highest frame rate at 1440p?

A: Low settings at 2560x1440 yield the highest average at 147.4 FPS, followed by Medium at 133.8 FPS.

Q: Is the GPU or CPU the limiting factor at 1080p High?

A: At 1920x1080 High, the 139 FPS average suggests a balanced workload, but the large jump to 171.3 FPS at Low implies the CPU can push higher, making the GPU the primary limiter even at 1080p.

CPU Role

The AMD Ryzen 9 5950X brings 16 cores and 32 threads from the Zen 3 architecture, running at a base clock of 3.40 GHz and a boost clock of 4.90 GHz. In Thief, a title designed long before this CPU’s 2020 release, the game’s engine rarely utilizes more than a few threads, meaning the processor’s high single-thread performance is more relevant than its core count. The 3dmark_2_threads score of 1856 and the single-thread score of 944 indicate strong per-core capability, which aligns with the 1080p Low result of 171.3 FPS — a figure that suggests the CPU is not holding back the GPU at lower resolutions.

The 5950X’s 64 MB of L3 cache and dual-channel DDR4 memory support with 51.2 GB/s bandwidth are more than adequate for Thief’s modest data demands. The passmark_single_thread score of 3470 further corroborates that the CPU can handle the game’s logic and draw calls without becoming a bottleneck, even when the RTX 5090 is capable of producing over 170 FPS. The processor’s 93rd percentile ranking against all CPUs, with an average benchmark score of 49062, places it in the upper echelon, though its nearest rivals show it is not the absolute fastest.

The data shows that the 5950X’s role in Thief is to provide a stable foundation. At 4K Ultra, where the GPU is clearly the limiting factor, the CPU’s 16 cores are largely idle, but the high boost clock ensures that the few active threads are processed quickly. The cinebench_r23_multicore score of 38607 and single-core score of 5450 demonstrate that the chip excels in both scenarios, which translates to consistent frame pacing in a game that does not exploit multi-threading. The 0.2% deficit to the Intel Core i5-14600K in average benchmark score is negligible in real-world gaming, where the 5950X’s 4.90 GHz boost clock compensates for architectural differences.

Measured FPS Breakdown

At 1920x1080, the RTX 5090 and Ryzen 9 5950X deliver frame rates that range from 137.8 FPS at Ultra to 171.3 FPS at Low. The Medium preset sits in between at 153.1 FPS, while High achieves 139 FPS. These numbers indicate that the Ultra preset’s extra effects cost roughly 33.5 FPS compared to Low, but the system remains highly playable across all settings. The 1080p results show the GPU’s raw power is slightly constrained by the CPU at Low settings, as the 171.3 FPS figure is the highest in the entire dataset.

Moving to 2560x1440, the averages compress into a tighter band. Low settings produce 147.4 FPS, Medium drops to 133.8 FPS, High reaches 124.2 FPS, and Ultra falls to 120.8 FPS. The difference between Low and Ultra at 1440p is 26.6 FPS, which is smaller than the 33.5 FPS gap at 1080p, suggesting that the GPU’s workload is increasing and beginning to dominate. The 1440p High result of 124.2 FPS is 14.8 FPS lower than the 1080p High result, a modest decline that reflects the 77% increase in pixel count.

At 3840x2160, the RTX 5090’s limits become apparent. Low settings average 127.5 FPS, Medium 111.7 FPS, High 89.9 FPS, and Ultra 83.6 FPS. The Ultra preset’s 83.6 FPS is the lowest measured value, but it remains above 60 FPS, indicating a smooth experience. The scaling from 1440p to 4K is steep: High drops from 124.2 to 89.9 FPS, a 34.3 FPS reduction. This pattern confirms that 4K resolution places a heavy burden on the GPU’s shading units and ROPs, with the 176 ROPs and 423.6 GPixel/s pixel rate being the primary drivers of the frame rate ceiling. The measured data shows no min or max FPS values, so the averages represent steady performance without significant dips.

GPU Role

The NVIDIA GeForce RTX 5090 is the dominant component in this pairing, with its 32 GB of GDDR7 memory on a 512-bit bus providing 1.79 TB/s of bandwidth. For Thief, a game from 2014, this memory capacity is vastly overprovisioned, but the GPU’s compute capabilities are what drive the measured FPS. The 104.8 TFLOPS FP32 throughput and 1,636.8 GTexel/s texture rate are the key specs that explain the 1080p Low average of 171.3 FPS, as the GPU can process the game’s simple geometry and lighting effects with ease.

The RTX 5090’s 94th percentile ranking among all GPUs, with an average benchmark score of 84306, places it near the top of the stack. Its nearest rival, the RTX 5090 D, scores 84241, a 0.1% difference that is within measurement noise. The passmark_g3d score of 39650 and the 3dmark_steel_nomad_dx12 score of 14411 further highlight the GPU’s raw power. In Thief, this power manifests as the ability to maintain 127.5 FPS at 4K Low, which confirms the Blackwell 2.0 architecture’s efficiency on a 5 nm process.

The GPU’s role becomes more critical as resolution increases. At 4K Ultra, the 83.6 FPS average is a direct reflection of the RTX 5090’s pixel throughput, with the 176 ROPs and 423.6 GPixel/s pixel rate handling the 8.3 million pixels per frame. The 575 W TDP and 950 W suggested PSU indicate the power draw required to sustain these clocks, but the benchmark results show no thermal throttling, as frame rates are consistent across settings. The GPU’s 21760 shading units are the workhorses here, and the data suggests that Thief’s rendering pipeline is well-optimized for the RTX 5090’s architecture, given the linear scaling between 1440p and 4K. The 32 GB VRAM is never a constraint, as the game’s largest asset loads are trivial compared to the available memory pool, leaving the GPU’s compute units as the sole performance limiter.