Thief

Resolution Scaling

The measured frame rates for Thief with the AMD Ryzen 7 5800X and NVIDIA GeForce RTX 5080 show a clear and predictable scaling pattern as resolution increases. At 1920x1080 with High settings, the combo delivers 138.6 FPS, which drops to 120.1 FPS at 2560x1440 and further to 78.5 FPS at 3840x2160. This represents a 43% reduction in frame rate from 1080p to 4K at High settings, indicating that the GPU becomes progressively more stressed as pixel count rises.

Looking at the Low settings tier, the scaling is less severe but still substantial: 169.7 FPS at 1080p, 148.1 FPS at 1440p, and 124.6 FPS at 4K. The drop from 1080p to 4K here is 27%, which is noticeably smaller than the High settings drop. This differential suggests that at Low settings, the CPU has more headroom to feed frames, and the RTX 5080's raw throughput is the limiting factor even at lower resolutions.

The Medium settings tier shows an intermediate pattern: 150.8 FPS at 1080p, 133.8 FPS at 1440p, and 103.8 FPS at 4K. The scaling from 1080p to 1440p is a 11% reduction, while 1440p to 4K is a 22% reduction. This non-linear scaling is typical for a game where the GPU workload grows faster than linear with resolution, particularly due to pixel shading and memory bandwidth demands.

At Ultra settings, the pattern mirrors High but with slightly lower absolute values: 137.7 FPS at 1080p, 119.6 FPS at 1440p, and 79.1 FPS at 4K. The 1080p to 4K drop is 43%, nearly identical to the High settings drop. The Ultra and High settings produce almost identical frame rates at each resolution, differing by less than 1 FPS at 1080p and 1440p, and by 0.6 FPS at 4K. This suggests that the visual quality difference between High and Ultra in Thief does not translate into a meaningful performance penalty for this hardware combination.

The data indicates that the limiting component shifts between resolutions. At 1080p, the CPU (an 8-core, 16-thread Zen 3 part) is likely the primary constraint, as the frame rates across settings are relatively close — from 137.7 to 169.7 FPS — suggesting the GPU has headroom. At 4K, the GPU becomes the clear bottleneck, with the frame rate spread widening to 78.5 to 124.6 FPS across settings, indicating that the RTX 5080's rendering capacity is the dominant factor.

GPU Role

The NVIDIA GeForce RTX 5080 is built on the Blackwell 2.0 architecture using TSMC's 5 nm process node, with a chip containing 45,600 million transistors on a 378 mm² die. Its base clock runs at 2295 MHz with a boost clock of 2617 MHz. The memory subsystem consists of 16 GB of GDDR7 on a 256-bit bus, delivering 960.0 GB/s of bandwidth. This memory configuration appears well-suited to Thief's demands, as the game's 2014 release date suggests it was not designed with high-resolution textures that would stress modern VRAM capacities, yet the 16 GB allocation provides ample headroom.

The GPU's compute capabilities include 10,752 shading units, 336 texture mapping units, and 112 ROPs, with a pixel rate of 293.1 GPixel/s and a texture rate of 879.3 GTexel/s. The FP32 throughput is 56.28 TFLOPS. In the context of Thief, these specifications translate to the measured frame rates: at 4K Ultra, the card sustains 79.1 FPS, which is a respectable result for a 2014 title given the resolution's pixel count.

The RTX 5080's benchmark scores place it in the 89th percentile among all GPUs, with an average benchmark score of 59,188. Its nearest rivals in the database include the Intel Arc A570M with a score of 58,239 (1.6% lower), the Intel Arc Pro A60 at 60,326 (1.9% higher), and the Intel Arc A580 at 57,756 (2.5% lower). These deltas are small, indicating that the RTX 5080 sits in a tightly competitive performance band, though Thief's specific workload may favor certain architectural strengths.

The measured FPS data shows that the GPU's role is most pronounced at 4K, where the frame rate difference between Low (124.6 FPS) and Ultra (79.1 FPS) is 45.5 FPS. This spread demonstrates that the RTX 5080's shading units and memory bandwidth are being exercised differently across settings, with Ultra presumably enabling more complex lighting and shadow calculations that the Blackwell architecture handles efficiently but still with a measurable cost.

How This Combo Ranks

In the database of tested combinations, the AMD Ryzen 7 5800X with NVIDIA GeForce RTX 5080 ranks 223rd out of 1,642 combos for Thief, placing it in the top 13.6% of all tested pairings. This rank reflects the overall performance across all measured resolutions and settings, aggregating the 12 data points from the measured FPS table.

The combination's ranking is influenced by both components. The RTX 5080's 89th percentile standing among GPUs and the Ryzen 7 5800X's 84th percentile among CPUs suggest that this pairing is balanced but not at the absolute top of the hierarchy. The CPU's average benchmark score of 27,606 places it near several rivals: the AMD Ryzen 7 5800 scores 27,535 (0.3% lower), the AMD Ryzen 5 8500GE scores 27,708 (0.4% higher), and the Intel Core i5-12600KF scores 27,827 (0.8% higher). These close deltas indicate that the CPU is not a differentiator in Thief's performance; the GPU carries the ranking.

The rank of 223 out of 1,642 means there are 222 combos that achieve higher aggregate performance in Thief. Given the game's age, many of these higher-ranked combos likely feature more recent CPUs with higher single-thread performance or GPUs with even greater rasterization throughput. However, the 5800X's 8 cores and 16 threads, with a boost clock of 4.70 GHz, provide sufficient single-thread capability for a 2014 title, as evidenced by its 3dmark single-thread score of 943.

The data suggests that this combo is well-positioned for Thief at high refresh rates at 1440p, where it achieves 120.1 FPS at High settings and 119.6 FPS at Ultra. The ranking reflects that the combo is capable of smooth gameplay across all tested configurations, with the weakest result being 78.5 FPS at 4K High, which still exceeds typical 60 FPS targets.

Measured FPS Breakdown

At 1920x1080, the combo delivers its highest frame rates. Low settings produce 169.7 FPS, Medium 150.8 FPS, High 138.6 FPS, and Ultra 137.7 FPS. The gap between Low and Medium is 18.9 FPS, while the gap between High and Ultra is only 0.9 FPS, confirming that High and Ultra are nearly identical in performance cost at this resolution. The 1080p results indicate that even at Low settings, the frame rate does not exceed 170 FPS, suggesting a CPU or engine-level limit rather than a GPU limitation.

At 2560x1440, the frame rates are: Low 148.1 FPS, Medium 133.8 FPS, High 120.1 FPS, and Ultra 119.6 FPS. The drop from 1080p to 1440p is 21.6 FPS at Low settings, 17.0 FPS at Medium, 18.5 FPS at High, and 18.1 FPS at Ultra. The consistent absolute drop across settings indicates that the GPU is scaling predictably with the 77% pixel count increase from 1080p to 1440p, though the relative drop is smaller at Low settings (12.7%) compared to High (13.3%).

At 3840x2160, the frame rates are: Low 124.6 FPS, Medium 103.8 FPS, High 78.5 FPS, and Ultra 79.1 FPS. The drop from 1440p to 4K is substantial: 23.5 FPS at Low, 30.0 FPS at Medium, 41.6 FPS at High, and 40.5 FPS at Ultra. The 4K results show that High and Ultra are effectively tied (78.5 vs 79.1 FPS), but the gap between Medium and High is 25.3 FPS, indicating a significant quality step that impacts GPU throughput.

Across all resolutions, the Ultra settings never exceed 137.7 FPS, while Low settings never drop below 124.6 FPS. This 13.1 FPS range between the best Low result and the worst Ultra result highlights that the RTX 5080 has enough headroom at 4K Low to maintain high frame rates, but the game's Ultra settings at 4K bring the GPU to a point where it delivers just under 80 FPS.

FAQ

Q: What is the frame rate at 4K Ultra settings for this combo?

A: The measured average FPS at 3840x2160 with Ultra settings is 79.1 FPS.

Q: How does the CPU compare to its nearest rivals in overall benchmarks?

A: The AMD Ryzen 7 5800X has an average benchmark score of 27,606. The AMD Ryzen 7 5800 scores 27,535 (0.3% lower), the AMD Ryzen 5 8500GE scores 27,708 (0.4% higher), and the Intel Core i5-12600KF scores 27,827 (0.8% higher).

Q: What is the largest FPS drop when moving from 1080p to 4K?

A: The largest absolute drop is at High settings, where the frame rate falls from 138.6 FPS at 1920x1080 to 78.5 FPS at 3840x2160, a reduction of 60.1 FPS.

Q: What is the combo's rank among all tested combinations for Thief?

A: The combo ranks 223rd out of 1,642 tested combinations, placing it in the top 13.6% of all pairings.

Q: At which resolution and settings does the combo exceed 150 FPS?

A: The combo exceeds 150 FPS at 1920x1080 with Low settings (169.7 FPS) and Medium settings (150.8 FPS), as well as at 2560x1440 with Low settings (148.1 FPS, which is just below 150).

Q: What is the GPU's memory bandwidth and VRAM capacity?

A: The RTX 5080 has 16 GB of GDDR7 memory on a 256-bit bus, delivering 960.0 GB/s of bandwidth.

CPU Role

The AMD Ryzen 7 5800X is an 8-core, 16-thread processor based on the Zen 3 architecture (codename Vermeer), manufactured on TSMC's 7 nm process node. It has a base clock of 3.80 GHz and a boost clock of 4.70 GHz, with a TDP of 105 W. The cache hierarchy includes 64 KB of L1 per core, 512 KB of L2 per core, and 32 MB of L3 cache. This configuration provides strong single-thread performance, which is critical for a 2014 title like Thief that was designed for the era's dual-core and quad-core CPUs.

The CPU's benchmark results show a single-thread score of 943 in 3dmark and 3,327 in Cinebench R23 single-core. These scores indicate that the 5800X has ample single-thread capability for Thief's engine, which likely relies on one or two primary threads for game logic and rendering setup. The multi-thread scores, such as 7,578 in 3dmark max threads and 23,571 in Cinebench R23 multicore, demonstrate that the CPU can handle additional background tasks without compromising frame delivery.

In the context of Thief's measured FPS, the CPU's role becomes apparent at 1080p Low settings, where the frame rate reaches 169.7 FPS but does not go higher. This ceiling likely represents the engine's physics and AI update rate being saturated by the CPU's single-thread performance. The fact that 1080p High (138.6 FPS) and 1080p Ultra (137.7 FPS) are so close suggests that once the GPU is not the bottleneck, the CPU limits the maximum achievable frame rate to around 170 FPS.

The CPU's memory support for DDR4 with dual-channel configuration and 51.2 GB/s bandwidth is adequate for a game from 2014, which would have been designed for DDR3-era bandwidth. The 32 MB L3 cache helps maintain low latency access to frequently used data, which is beneficial for Thief's stealth gameplay where AI state and level geometry are accessed repeatedly.

The 5800X's percentile ranking of 84 among all CPUs and its average benchmark score of 27,606 place it within a tight band of competitors. The nearest rivals show deltas of less than 1%, meaning that swapping to any of these CPUs would not meaningfully change Thief's performance. The CPU's boost clock of 4.70 GHz is particularly relevant for Thief's single-threaded nature, as higher clocks directly translate to faster frame processing.

At 4K resolutions, the CPU's influence diminishes significantly. The frame rates at 4K Ultra (79.1 FPS) and 4K High (78.5 FPS) are nearly identical to the CPU's weaker impact, confirming that the GPU is the sole bottleneck at that resolution. The 5800X's role is to ensure that the GPU is fed with frames at lower resolutions, which it does effectively up to approximately 170 FPS.