Thief

Resolution Scaling

The measured FPS data for Thief shows a clear and consistent scaling pattern as resolution increases from 1920x1080 to 3840x2160. At the High preset, the average frame rate drops from 90 FPS at 1080p to 79 FPS at 1440p, then further to 64 FPS at 4K. This represents a 28.9% reduction from 1080p to 4K, which is a relatively modest decline compared to what would be expected if the GPU were the sole limiting factor.

The Low preset tells a similar story: 110 FPS at 1080p, 97 FPS at 1440p, and 81 FPS at 4K. The drop from 1080p to 4K here is 26.4%. The Medium preset shows 99 FPS at 1080p, 88 FPS at 1440p, and 73 FPS at 4K, a 26.3% decline. The Ultra preset, which is the most demanding, goes from 88 FPS at 1080p to 78 FPS at 1440p and finally 61 FPS at 4K, a 30.7% reduction.

The pattern across all four presets is remarkably consistent, with the 4K penalty ranging from roughly 26% to 31%. This consistency suggests that the scaling behavior is largely resolution-driven rather than settings-driven. The fact that the Ultra preset shows the largest percentage drop (30.7%) indicates that at higher settings, the rendering workload increases more steeply with pixel count, but the difference between presets is not dramatic.

What is more revealing is the comparison between 1080p and 1440p. At High settings, the drop is 11 FPS (90 to 79), while at 1440p to 4K the drop is 15 FPS (79 to 64). This indicates that the scaling is not linear — the 4K jump imposes a heavier penalty per pixel than the 1440p jump. This is typical of a system where the GPU is becoming more stressed as resolution increases, but the CPU still has enough headroom to keep feeding frames at lower resolutions.

The data suggests that at 1080p, the combination of the AMD Ryzen 5 2600 and the AMD Radeon RX 7900 XT is not fully GPU-bound. The 110 FPS at Low settings at 1080p is likely near the ceiling of what this CPU can deliver in Thief, given its 6 cores and 12 threads with a boost clock of 3.90 GHz. As resolution climbs to 4K, the GPU workload expands and the frame rate drops, but the 61-81 FPS range at 4K across presets indicates the RX 7900 XT remains capable of maintaining playable performance.

GPU Role

The AMD Radeon RX 7900 XT is built on the RDNA 3.0 architecture with a Navi 31 chip, fabricated on a 5 nm process by TSMC. It carries 20 GB of GDDR6 memory on a 320-bit bus, delivering 800.0 GB/s of memory bandwidth. The GPU's base clock is 1387 MHz, with a boost clock of 2394 MHz and a game clock of 2025 MHz. Memory runs at 2500 MHz with 20 Gbps effective speed.

In Thief, these specifications translate into measurable performance differences across presets. At 4K, the RX 7900 XT delivers 64 FPS at High settings, 73 FPS at Medium, and 61 FPS at Ultra. The gap between Medium and Ultra at 4K is 12 FPS (73 vs 61), which indicates that the Ultra preset adds a significant rendering load. The 20 GB VRAM buffer is more than sufficient for this game, as Thief from 2014 does not require large memory pools, but the high bandwidth helps maintain consistent frame delivery at high resolutions.

The GPU's compute capabilities are substantial: 51.48 TFLOPS FP32, 5376 shading units, 336 TMUs, and 192 ROPs. The pixel rate is 459.6 GPixel/s and the texture rate is 804.4 GTexel/s. These figures explain why the RX 7900 XT can push 4K frame rates above 60 FPS even at Ultra settings in this title. The GPU also supports DirectX 12 Ultimate, Vulkan 1.4, and OpenGL 4.6, though Thief's rendering engine is older and may not fully utilize these modern APIs.

The benchmark results for the GPU show a PassMark G3D score of 29009 and a PassMark GPU Compute score of 16828. In 3DMark Steel Nomad DX12, it scores 5623. These synthetic benchmarks are consistent with the real-world Thief performance: strong at high resolutions but not outpacing all contemporaries. The GPU's percentile ranking among all GPUs is 55, which puts it in the upper half but not the top tier. Its nearest rivals in synthetic benchmarks include the AMD Radeon 660M (deltaPct -0.5), NVIDIA RTX A2000 Mobile (deltaPct -0.5), AMD Radeon RX 570X (deltaPct -0.9), and AMD Radeon RX 9070 XT (deltaPct 1.5). These deltas are small, indicating that in raw benchmark terms, the RX 7900 XT sits in a cluster of similar-performing GPUs, despite its modern architecture.

How This Combo Ranks

The combination of the AMD Ryzen 5 2600 and AMD Radeon RX 7900 XT ranks 2218 out of 3720 tested combos in Thief. This places it in the 59.6th percentile of all tested combinations, meaning roughly 40% of combos perform better and 60% perform worse. This mid-pack ranking is notable given the GPU's high-end specifications.

The ranking reflects the bottleneck characteristics of this pairing. The Ryzen 5 2600, with its 6 cores and 12 threads, has a PassMark multithread score of 13160 and a single-thread score of 2239. Its Cinebench R15 scores are 1248 multicore and 157.3 singlecore. These are respectable numbers for a 2018 processor, but they are not exceptional by modern standards. The CPU's percentile ranking among all CPUs is 75, which is higher than the combo's overall ranking, suggesting that the CPU is not the primary limiting factor in this pairing.

However, the GPU's percentile ranking is only 55, which is lower than the CPU's 75. This is counterintuitive — one might expect the combo ranking to be closer to the weaker component. The data shows that in Thief, the RX 7900 XT is not performing at its full potential when paired with the Ryzen 5 2600. The measured frame rates at 1080p, particularly the 110 FPS at Low settings, suggest a CPU-imposed ceiling that prevents the GPU from stretching its legs.

The combo's rank of 2218 out of 3720 means there are 1502 tested combos that perform worse and 2217 that perform better. Given that the GPU is a high-end RDNA 3 part, the rank is likely dragged down by the CPU's age. The Ryzen 5 2600's launch MSRP was $199, and it was released in April 2018. The GPU launched in November 2022 at an MSRP of 899 USD. This generational gap is reflected in the performance pairing.

FAQ

Q: What is the best resolution for this combo in Thief?

A: The data shows that 1440p offers a good balance. At High settings, the combo delivers 79 FPS at 2560x1440, which is only 11 FPS lower than 1080p but 15 FPS higher than 4K. The 4K results (61-81 FPS depending on settings) are playable but leave less headroom.

Q: How does the Ultra preset compare to High at 4K?

A: At 3840x2160, the Ultra preset averages 61 FPS while High averages 64 FPS. The difference is only 3 FPS, suggesting that the Ultra preset's additional effects have a minimal impact on this GPU at 4K.

Q: Is the CPU or GPU the bottleneck at 1080p?

A: The 1080p Low preset yields 110 FPS, and the High preset yields 90 FPS. The relatively small gap between Low and High at 1080p, compared to larger gaps at 4K, indicates the Ryzen 5 2600 is limiting frame rates at lower resolutions.

Q: What frame rate can I expect at Medium settings?

A: The Medium preset delivers 99 FPS at 1080p, 88 FPS at 1440p, and 73 FPS at 4K. The minimum FPS recorded at Medium settings were 84 at 1080p, 74 at 1440p, and 62 at 4K, with maximums of 114, 101, and 84 respectively.

Q: How does this combo rank compared to other tested combinations?

A: It ranks 2218 out of 3720 combos, placing it in the upper-middle tier. This is lower than the CPU's individual percentile (75) but higher than the GPU's individual percentile (55), reflecting the overall balance of this pairing.

Q: Does the RX 7900 XT's 20 GB VRAM matter for Thief?

A: Thief's rendering demands are well within the 20 GB GDDR6 memory pool. The 800.0 GB/s memory bandwidth is more relevant, as it supports smooth frame delivery at 4K resolutions, where the GPU is handling 8.3 million pixels per frame.

CPU Role

The AMD Ryzen 5 2600 is a 6-core, 12-thread processor from the 2000 series, based on the Zen+ architecture (Pinnacle Ridge). It has a base clock of 3.40 GHz and a boost clock of 3.90 GHz, with a TDP of 65 W. The CPU is fabricated on a 12 nm process at GlobalFoundries, containing 4,800 million transistors on a 213 mm² die. It supports DDR4 memory on a dual-channel bus with 46.9 GB/s memory bandwidth.

In Thief, the CPU's role is evident in the scaling behavior. At 1080p Low, the system achieves 110 FPS, but at 1080p Ultra it drops to 88 FPS. This 22 FPS spread across settings at the same resolution indicates that the CPU can handle the frame rate at lower settings, but as the GPU work increases, the CPU still keeps up. However, the fact that 1080p Low (110 FPS) is only 29 FPS higher than 4K Low (81 FPS) suggests the CPU is approaching its limits at lower resolutions.

The CPU's synthetic benchmarks provide context. Its Geekbench multicore score is 5648 and singlecore is 1154. PassMark tests show 187062 for data compression, 12429 for data encryption, 22942 for floating point math, and 44518 for integer math. The PassMark physics score is 673. These scores indicate a processor that handles multi-threaded workloads well but is not a single-thread leader.

The Ryzen 5 2600's nearest rivals in synthetic benchmarks are the Intel Core Ultra 5 228V (deltaPct 0.2), Intel Core i9-11900H (deltaPct 0.5), Intel Xeon D-1746TER (deltaPct -0.7), and AMD EPYC 9454 (deltaPct 1.2). These deltas are all within 1.2% of the Ryzen 5 2600's average benchmark score of 21484, suggesting that in raw CPU terms, this processor remains competitive with much newer parts in general workloads.

For Thief specifically, the CPU's 16 MB of shared L3 cache and 512 KB per-core L2 cache help with game logic and physics calculations. The 12 threads allow the game engine to distribute tasks across multiple cores, but Thief's age means it may not fully utilize all 12 threads. This is a likely reason why the CPU's performance in this title is adequate but not outstanding.

Settings Recommendations

Based on the measured FPS data, the Medium preset offers the most balanced experience across all three resolutions. At 1080p, Medium delivers 99 FPS with a minimum of 84 and maximum of 114, which is smooth and consistent. At 1440p, Medium averages 88 FPS with a minimum of 74 and maximum of 101. At 4K, Medium averages 73 FPS with a minimum of 62 and maximum of 84.

The High preset is nearly as good, with 90 FPS at 1080p, 79 FPS at 1440p, and 64 FPS at 4K. The difference between High and Medium is 9 FPS at 1080p, 9 FPS at 1440p, and 9 FPS at 4K — a consistent 9 FPS penalty for the higher preset. This suggests that High adds some visual fidelity at a modest frame rate cost.

The Ultra preset provides the lowest frame rates: 88 FPS at 1080p, 78 FPS at 1440p, and 61 FPS at 4K. The gap between Ultra and High is only 2 FPS at 1080p, 1 FPS at 1440p, and 3 FPS at 4K. This minimal difference indicates that the Ultra preset's additional effects are not heavily taxing this GPU, making it a viable option if maximum visual quality is desired.

The Low preset offers the highest frame rates — 110 FPS at 1080p, 97 FPS at 1440p, and 81 FPS at 4K — but likely sacrifices significant visual quality. For a stealth game like Thief, where atmospheric lighting and shadows are important, the Low preset may detract from the intended experience.

The recommended approach is to use Medium settings at 1440p for the best combination of visual quality and performance. The 88 FPS average with a 74 FPS minimum ensures smooth gameplay without frame drops. At 4K, Medium is also the best choice, as the 73 FPS average with a 62 FPS minimum stays above the 60 FPS threshold. For players with high-refresh-rate 1080p monitors, High settings at 90 FPS is a strong option, as it delivers near-100 FPS performance with better visuals than Medium.

Measured FPS Breakdown

The measured FPS data for Thief with the AMD Ryzen 5 2600 and AMD Radeon RX 7900 XT covers 12 combinations of resolution and settings.

At 1920x1080:

• Low: 110 FPS average
• Medium: 99 FPS average, with a minimum of 84 FPS and maximum of 114 FPS
• High: 90 FPS average
• Ultra: 88 FPS average

At 2560x1440:

• Low: 97 FPS average
• Medium: 88 FPS average, with a minimum of 74 FPS and maximum of 101 FPS
• High: 79 FPS average
• Ultra: 78 FPS average

At 3840x2160:

• Low: 81 FPS average
• Medium: 73 FPS average, with a minimum of 62 FPS and maximum of 84 FPS
• High: 64 FPS average
• Ultra: 61 FPS average

The minimum and maximum FPS values are only recorded for the Medium preset across all three resolutions. At 1080p Medium, the range is 84-114 FPS, a 30 FPS spread. At 1440p Medium, the range is 74-101 FPS, a 27 FPS spread. At 4K Medium, the range is 62-84 FPS, a 22 FPS spread. This narrowing range at higher resolutions indicates that the GPU becomes more consistently loaded as resolution increases, reducing frame time variance.

The data shows a uniform 9-12 FPS penalty for each resolution step up at Medium settings: 99 (1080p) to 88 (1440p) is an 11 FPS drop, and 88 (1440p) to 73 (4K) is a 15 FPS drop. At High settings, the drops are 11 FPS (90 to 79) and 15 FPS (79 to 64). At Low settings, the drops are 13 FPS (110 to 97) and 16 FPS (97 to 81). At Ultra settings, the drops are 10 FPS (88 to 78) and 17 FPS (78 to 61).

The largest single drop across the entire dataset is the 17 FPS reduction from 1440p Ultra (78 FPS) to 4K Ultra (61 FPS). The smallest is the 1 FPS difference between 1440p High (79 FPS) and 1440p Ultra (78 FPS). These figures illustrate that the Ultra preset at 1440p is nearly identical in performance to High, making Ultra a reasonable choice at that resolution. At 4K, the 3 FPS difference between High (64) and Ultra (61) is also minor, though both are close to the 60 FPS threshold.