Thief

The AMD Radeon RX 6600 paired with the Intel Core Ultra 9 290K Plus delivers a playable but largely GPU-bound experience in Thief at 1080p and 1440p, with the CPU providing ample headroom across all settings. At 4K, the GPU’s limitations become pronounced, dropping the average frame rate below the 60 FPS threshold at every preset tested. The benchmark data reveals a clear scaling pattern where resolution increases disproportionately impact performance, while the CPU's 24 cores and high boost clock ensure it never becomes the primary constraint in this 2014 stealth title.

Resolution Scaling

The measured FPS data shows a steep and consistent performance penalty as resolution climbs from 1920x1080 to 3840x2160. At High settings, the average frame rate falls from 82 FPS at 1080p to 56 FPS at 1440p, a reduction of 26 FPS, and then to 33 FPS at 4K, a further drop of 23 FPS. This progression indicates that the RX 6600’s rendering throughput is the limiting factor; each pixel doubling roughly halves the achievable frame rate, which is characteristic of a GPU-bound scenario rather than a CPU bottleneck.

Low settings exhibit the same trend but from a higher baseline. The average FPS at 1080p Low is 142, which drops to 98 at 1440p and 57 at 4K. The 4K Low result is particularly telling: even with minimal graphical load, the GPU cannot sustain 60 FPS, confirming that the resolution itself—not the settings—is the dominant constraint at 3840x2160. Medium settings follow the pattern, with averages of 108 FPS at 1080p, 74 FPS at 1440p, and 44 FPS at 4K. Ultra settings, the most demanding preset, yield 78 FPS at 1080p, 54 FPS at 1440p, and 32 FPS at 4K.

The scaling from 1080p to 1440p at each setting shows a roughly 30–35% FPS reduction, while the jump from 1440p to 4K incurs an additional 40–45% loss. This nonlinear behavior suggests that memory bandwidth and pixel fill rate become increasingly strained as the resolution grows. The RX 6600’s 128-bit memory bus and 224.0 GB/s bandwidth appear sufficient for 1080p but insufficient for 4K, where the 8 GB GDDR6 frame buffer also risks capacity pressure at higher settings. At 4K Ultra, the average of 32 FPS is only 3 FPS above the 4K High result, indicating that the GPU is already saturated and additional settings changes yield diminishing returns.

CPU Role

The Intel Core Ultra 9 290K Plus is a 24-core, 24-thread processor with a base clock of 3.70 GHz and a boost clock of 5.80 GHz. Its benchmark scores place it in the 96th percentile of all CPUs, with an average benchmark score of 84003. In Thief, which launched in 2014, the game’s threading model is unlikely to fully utilize all 24 cores, but the CPU’s high single-thread performance—evidenced by a Cinebench R23 single-core score of 7303—ensures it can feed the GPU without stalling.

The data supports this interpretation. At 1080p Low, where CPU overhead is most likely to surface, the average FPS reaches 142, which is well above the 144 Hz refresh rate of many monitors. If the CPU were the bottleneck, the FPS would plateau regardless of resolution, but the measured values drop significantly with each resolution increase. For instance, moving from 1080p High (82 FPS) to 1440p High (56 FPS) shows a 26 FPS decline, which is a GPU-side effect. The CPU’s role is further clarified by comparing its multicore throughput—a Cinebench R23 multicore score of 51731—which vastly exceeds what Thief requires for physics and AI processing.

The processor’s nearest rival, the Intel Core Ultra 9 285K, has an average score of 83807, a delta of only 0.2% from the 290K Plus. This near-parity suggests that in CPU-bound scenarios, the two chips would perform indistinguishably. However, in this game, the RX 6600’s 8.928 TFLOPS FP32 performance is the limiting factor. The CPU’s 36 MB of shared L3 cache and dual-channel DDR5 memory support (115.2 GB/s bandwidth) provide a responsive platform, but the benchmark results indicate that even a substantially weaker CPU would produce similar frame rates at 4K, given the GPU’s constraints.

FAQ

Q: What is the average FPS at 1080p with Medium settings?

A: The measured average frame rate is 108 FPS, with a minimum of 92 FPS and a maximum of 124 FPS. This represents a smooth experience for most displays, with the minimum still comfortably above 60 FPS.

*Q: Can this combo handle 4K gaming in Thief?*

A: At 4K, the highest average FPS is 57 on Low settings. High, Medium, and Ultra settings produce averages of 33, 44, and 32 FPS, respectively. None of these meet the 60 FPS standard, indicating that 4K is not viable for fluid gameplay with this GPU.

Q: How does the RX 6600 compare to its nearest GPU rivals in overall benchmarks?

A: The RX 6600 has an average benchmark score of 19036. Its closest competitor, the NVIDIA Quadro K6000, scores 19030 (a delta of 0%), while the NVIDIA GeForce RTX 4050 Mobile scores 19049 (a delta of -0.1%). The AMD card sits in the 63rd percentile of all GPUs.

Q: What is the CPU’s performance percentile and closest rival?

A: The Intel Core Ultra 9 290K Plus ranks in the 96th percentile of all CPUs with an average benchmark score of 84003. Its nearest rival is the Intel Core Ultra 9 285K, which scores 83807, a difference of 0.2%.

*Q: Is the CPU or GPU more likely to limit performance in Thief?*

A: The data shows the GPU is the limiting component. At 1080p Low, the CPU pushes 142 FPS, but this drops to 57 FPS at 4K Low—a 60% reduction that cannot be attributed to CPU scaling. The GPU’s pixel rate of 159.4 GPixel/s and texture rate of 279.0 GTexel/s are the constraining factors.

Q: What are the minimum FPS values recorded at Medium settings?

A: At 1080p Medium, the minimum is 92 FPS. At 1440p Medium, it drops to 63 FPS, and at 4K Medium, it falls to 37 FPS. These minimums indicate occasional frame dips but remain playable at 1080p and 1440p.

How This Combo Ranks

In the benchmark database, this combination of the Intel Core Ultra 9 290K Plus and AMD Radeon RX 6600 ranks 2230 out of 2851 tested combos for Thief. This places it in the lower half of all tested systems, which is consistent with the GPU’s mid-range positioning. The RX 6600’s percentile ranking of 63 among all GPUs, combined with the CPU’s 96th percentile, creates an imbalanced pairing where the processor vastly outperforms the graphics card in synthetic benchmarks.

The combo rank of 2230 suggests that many other configurations—likely those with higher-end GPUs—achieve better frame rates in Thief. The delta between the CPU’s nearest rivals is negligible (0.2% from the 285K), so the ranking is driven almost entirely by the GPU’s performance. For context, the RX 6600’s nearest GPU rivals, such as the NVIDIA Quadro K6000 and RTX 4050 Mobile, have nearly identical average scores (19030 and 19049, respectively), meaning swapping to those cards would produce similar results in this title. The low rank is not a reflection of the CPU’s capability but rather the GPU’s inability to push high frame rates at demanding resolutions.

Measured FPS Breakdown

At 1920x1080, the RX 6600 delivers strong performance across all settings. Low settings average 142 FPS, which is exceptionally high and indicates the GPU is far from saturated. Medium settings average 108 FPS with a minimum of 92 FPS, providing a smooth experience with headroom for frame drops. High settings average 82 FPS, still above 60 FPS, while Ultra settings average 78 FPS, only 4 FPS lower than High. The small gap between High and Ultra at 1080p (82 vs 78) suggests that the extra graphical features in Ultra have a modest cost at this resolution.

Moving to 2560x1440, the averages decrease proportionally. Low settings yield 98 FPS, Medium 74 FPS, High 56 FPS, and Ultra 54 FPS. The gap between High and Ultra narrows to 2 FPS, indicating that at 1440p, the GPU is approaching its limits and settings adjustments have less impact. The Minimum FPS at Medium is 63 FPS, which is still above 60, but the average of 74 leaves little margin for demanding scenes. At 1440p Ultra, the average of 54 FPS falls below 60, making this preset marginal for smooth gameplay.

At 3840x2160, performance drops sharply. Low settings average 57 FPS, just shy of 60. Medium averages 44 FPS with a minimum of 37 FPS, while High averages 33 FPS and Ultra averages 32 FPS. The difference between Low and Medium is 13 FPS, while the jump from Medium to High is only 11 FPS, and from High to Ultra is just 1 FPS. This compression at the top end shows that the GPU’s shading units and memory bandwidth are fully utilized at 4K, with Ultra offering no meaningful benefit over High. The 4K results are consistent across settings, reinforcing that resolution, not preset, is the primary bottleneck.

Settings Recommendations

Based on the measured data, the optimal experience for this combo is at 1920x1080 with High settings. The average of 82 FPS provides a comfortable margin above 60 FPS, and the 4 FPS difference from Ultra (78 FPS) suggests that High offers nearly identical visual quality with slightly better stability. For users prioritizing maximum frame rates, Low at 1080p achieves 142 FPS, but this sacrifices visual fidelity unnecessarily given the headroom.

At 1440p, Medium settings are the best balance, averaging 74 FPS with a minimum of 63 FPS. This keeps the experience fluid, though the minimum is close to the 60 FPS threshold. High at 1440p drops to 56 FPS, which may introduce noticeable stutter in fast-moving scenes. For 1440p, Medium is recommended over High or Ultra because the latter two average 56 and 54 FPS, respectively, both below the 60 FPS line.

4K is not recommended for this GPU. Even Low settings average 57 FPS, which is below the 60 FPS target and likely to dip further in gameplay. Medium at 4K averages 44 FPS with a minimum of 37 FPS, which is playable for slower stealth sections but will feel sluggish during action sequences. The data shows no 4K preset achieves a consistent 60 FPS, so users should either reduce resolution to 1440p or accept a sub-60 frame rate.

GPU Role

The AMD Radeon RX 6600 is a RDNA 2.0 architecture GPU built on a 7 nm process, featuring 1792 shading units, 112 TMUs, and 64 ROPs. Its core clocks range from a base of 1626 MHz to a boost of 2491 MHz, with a game clock of 2044 MHz. The GPU has 8 GB of GDDR6 memory on a 128-bit bus, providing 224.0 GB/s of bandwidth. Its FP32 performance is 8.928 TFLOPS, and it supports DirectX 12 Ultimate, Vulkan 1.4, and OpenGL 4.6.

In Thief, the GPU’s role is decisive. The measured FPS at 1080p High (82 FPS) aligns with the card’s mid-range positioning, while the 4K results (32–57 FPS) highlight its limitations with high pixel counts. The 8 GB VRAM is sufficient for 1080p and 1440p, but at 4K Ultra, the frame buffer may be taxed, contributing to the marginal 1 FPS difference between High and Ultra (33 vs 32 FPS). The GPU’s pixel rate of 159.4 GPixel/s and texture rate of 279.0 GTexel/s are the primary specs governing Thief’s rendering, and these values are insufficient for 4K at high settings.

The RX 6600’s benchmark scores reflect its position. It has a PassMark G3D score of 15096 and a 3DMark Steel Nomad DX12 score of 1492. Its nearest rival, the NVIDIA Quadro K6000, has an identical average benchmark score (19030 vs 19036), indicating similar overall performance. However, the RX 6600’s 63rd percentile ranking among all GPUs means it sits below the majority of discrete graphics cards tested. The GPU’s 7 nm process and 11,060 million transistors provide efficiency, but the 128-bit memory bus remains the key constraint at higher resolutions, as evidenced by the steep FPS drops from 1440p to 4K.