Thief

CPU Role — cores, clocks, and how they relate to this game's results

The AMD Ryzen 7 5800X is an 8-core, 16-thread desktop processor built on the Zen 3 architecture (codename Vermeer) using TSMC's 7 nm process. It operates with a base clock of 3.80 GHz and a boost clock of 4.70 GHz, with a 105 W TDP. The CPU's cache hierarchy includes 64 KB of L1 per core, 512 KB of L2 per core, and a 32 MB L3 cache. Memory support is DDR4 with dual-channel access and a theoretical bandwidth of 51.2 GB/s. The processor sits on the AMD Socket AM4 platform and provides Gen 4 PCIe with 20 CPU lanes.

In the context of Thief, a stealth title released in 2014, the CPU's multithreaded capability is substantial but not necessarily the primary driver of performance. The benchmark data shows this game's measured FPS at various resolutions and settings. At 1080p Low, the combo achieves 78 FPS average, which is the highest measured value across all tested configurations. At 1080p Ultra, the average drops to 43 FPS. The CPU's 16 threads and high boost clock are more than sufficient for a game from this era, which typically relies on fewer cores. The 3DMark scores illustrate the CPU's headroom: 7,586 in the 16-thread test and 7,578 in the max-threads test, while the single-thread score is 943. The single-thread performance, reflected in the 943 score, is particularly relevant for older game engines that often have a primary thread bottleneck.

The CPU's percentile rank among all CPUs is 81, indicating it outperforms a majority of processors in general benchmarking. Its average benchmark score is 29,123, which places it near the Intel Core Ultra 5 135H (29,093, delta 0.1%), Intel Xeon Phi 7210 (29,245, delta -0.4%), Intel Core i5-13500HX (29,270, delta -0.5%), and AMD Ryzen 5 5600XT (28,940, delta 0.6%). These deltas are all within 0.6%, meaning the 5800X is effectively performance-equivalent to these rivals in aggregate CPU benchmarks. However, in Thief, the limiting factor is not the CPU but the GPU, as the measured FPS scaling suggests.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

*Q: What is the highest average FPS achieved by this CPU-GPU combo in Thief, and at what settings?*

A: The highest average FPS is 78, achieved at 1920x1080 resolution with Low settings. This is the peak performance point across all measured configurations.

Q: How does the combo perform at 4K resolution compared to 1080p?

A: At 3840x2160, the average FPS ranges from 17 (Ultra) to 31 (Low). Compared to 1080p, where the average FPS ranges from 43 (Ultra) to 78 (Low), the 4K results are significantly lower, indicating that the GPU becomes the primary bottleneck at higher resolutions.

Q: What is the combo's rank among all tested combos in this game?

A: The combo ranks 2,634 out of 2,851 tested combos (comboRankInGame). This places it in the lower percentile of tested systems, consistent with the GPU's low benchmark percentile.

Q: Does the CPU have enough multithreaded performance for this game?

A: Yes. The CPU's Cinebench R23 multicore score is 15,476, and its 3DMark 16-thread score is 7,586. These scores are far higher than what a 2014 stealth title would require, confirming that the CPU is not the performance limiter in most scenarios.

Q: What is the GPU's benchmark percentile, and what does that imply for this game?

A: The Intel Arc B370 has a percentile rank of 5 among all GPUs, with an average benchmark score of 1,184 (3DMark Steel Nomad DX12). This low percentile indicates that the GPU is entry-level, which directly impacts high-resolution and high-settings performance in Thief.

Q: Are there any measured FPS values below 20 at any configuration?

A: Yes. At 3840x2160 with Ultra settings, the average FPS is 17. Additionally, at 3840x2160 with High settings, the average FPS is 18. These are the only configurations with averages below 20.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS data reveals a clear pattern of performance degradation as resolution increases, which is characteristic of a GPU-limited scenario. Starting at 1920x1080, the average FPS at Low settings is 78. Moving to 2560x1440 at the same settings, the average drops to 53, a reduction of 25 FPS (approximately 32% lower). At 3840x2160 Low, the average falls further to 31, which is a 47 FPS drop from 1080p Low (approximately 60% lower). This steep decline indicates that the GPU's rendering capabilities are being stretched thin at higher pixel counts.

For High settings, the progression is equally telling: 45 FPS at 1080p, 31 FPS at 1440p, and 18 FPS at 4K. The drop from 1440p to 4K is nearly 42%, while the drop from 1080p to 1440p is about 31%. The scaling is not linear, which suggests that the GPU is hitting memory bandwidth or fill-rate limits. At Medium settings, the averages are 59 FPS (1080p), 41 FPS (1440p), and 24 FPS (4K). The 4K result includes a min FPS of 20 and max of 27, showing some frame-time variance. At Ultra settings, the averages are 43 FPS (1080p), 29 FPS (1440p), and 17 FPS (4K).

The pattern across all settings is consistent: each resolution step up reduces performance by roughly 30-40%. This is a hallmark of GPU-bound performance. If the CPU were the limiter, we would expect FPS to remain more stable across resolutions, since the CPU workload (game logic, draw calls) does not scale linearly with pixel count in the same way. The CPU's high benchmark scores—such as the PassMark multithread score of 27,732 and Geekbench multicore of 11,036—indicate it has ample headroom. The data strongly suggests that the Intel Arc B370, with its 5th percentile GPU ranking, is the component that determines the FPS ceiling.

How This Combo Ranks — use comboRankInGame vs other tested combos

In the database of tested CPU-GPU combinations for Thief, this specific pairing of the AMD Ryzen 7 5800X and Intel Arc B370 ranks 2,634 out of 2,851 total combos. This rank places it in the bottom 8% of all tested systems. The rank reflects the GPU's limited performance relative to other graphics cards tested with the same or similar CPUs. The CPU itself is not the issue—it ranks in the 81st percentile among all CPUs, with an average benchmark score of 29,123, which is competitive with the Intel Core i5-13500HX (29,270) and Intel Xeon Phi 7210 (29,245). The delta between the 5800X and these rivals is less than 0.5%, indicating the CPU is not a differentiator in this ranking.

The combo's low rank is almost entirely attributable to the Intel Arc B370. The GPU's 3DMark Steel Nomad DX12 score is 1,184, and its percentile rank is 5, meaning it outperforms only 5% of all GPUs in the database. Its nearest rivals include the ATI Mobility Radeon HD 5570 (score 1,186, delta -0.2%), ATI Radeon HD 5770 (1,190, delta -0.5%), AMD Radeon HD 7650M (1,192, delta -0.7%), and AMD FirePro M2000 (1,168, delta 1.4%). These are all older or low-end parts, confirming the Arc B370's position at the bottom of the GPU performance spectrum. The combo rank of 2,634 out of 2,851 is therefore a direct reflection of pairing a top-tier CPU (for its era) with an entry-level integrated-class GPU. In practical terms, the system will play Thief at playable framerates only at lower resolutions and settings, as the measured FPS breakdown shows.

Settings Recommendations — which preset gives the best experience per the measured rows

Based on the measured FPS data, the optimal settings depend on the target resolution and the user's minimum acceptable framerate. At 1920x1080, the Low preset delivers an average of 78 FPS, which is smooth and responsive. The Medium preset yields 59 FPS with min/max of 50/68, still comfortably playable. High settings drop to 45 FPS, which is borderline but acceptable for a stealth game that does not require twitch reflexes. Ultra settings at 1080p produce 43 FPS, which is the lowest of the 1080p options but still above 30.

For users prioritizing visual quality over raw framerate, Medium at 1080p is the sweet spot: it offers a 59 FPS average with a consistent frame window (50-68), indicating stable performance without major dips. High at 1080p is a viable alternative if the user prefers better shadows and textures, but the 45 FPS average may feel less fluid during fast camera movements. Low at 1080p is the best for competitive play or for users sensitive to frame drops, as it maximizes the headroom.

At 2560x1440, the data suggests that Low is the only truly smooth option, with 53 FPS average. Medium drops to 41 FPS (min 35, max 47), which is playable but with occasional dips below 40. High and Ultra at 1440p are not recommended, as they average 31 FPS and 29 FPS respectively, falling below the 30 FPS threshold commonly considered playable. At 3840x2160, no settings achieve a playable framerate: Low averages 31 FPS, Medium 24 FPS (min 20), High 18 FPS, and Ultra 17 FPS. The 4K resolution is not viable for this combo in Thief.

The best overall experience, balancing visual fidelity and performance, is Medium settings at 1920x1080. This preset provides the highest average FPS above 60 with a stable frame-time window, and the visual improvement over Low is noticeable in a game with atmospheric lighting. For users who want maximum smoothness, Low at 1080p is the clear choice.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

The measured FPS data for Thief with the AMD Ryzen 7 5800X and Intel Arc B370 is as follows:

1920x1080 (1080p):

• Low: average 78 FPS (no min/max reported)
• Medium: average 59 FPS, min 50, max 68
• High: average 45 FPS (no min/max reported)
• Ultra: average 43 FPS (no min/max reported)

2560x1440 (1440p):

• Low: average 53 FPS (no min/max reported)
• Medium: average 41 FPS, min 35, max 47
• High: average 31 FPS (no min/max reported)
• Ultra: average 29 FPS (no min/max reported)

3840x2160 (4K):

• Low: average 31 FPS (no min/max reported)
• Medium: average 24 FPS, min 20, max 27
• High: average 18 FPS (no min/max reported)
• Ultra: average 17 FPS (no min/max reported)

The data shows a consistent trend: as resolution increases, average FPS drops by roughly 30-40% per step. At 1080p, the spread between Low and Ultra is 35 FPS (78 to 43). At 1440p, the spread narrows to 24 FPS (53 to 29). At 4K, the spread is only 14 FPS (31 to 17). This compression at higher resolutions indicates that the GPU is nearing its absolute limits, and settings changes have diminishing returns. The Medium preset is the only one with reported min/max values, showing that at 1080p it ranges from 50 to 68, at 1440p from 35 to 47, and at 4K from 20 to 27. These frame-times suggest moderate variance but no severe stuttering, which is typical for a GPU that is consistently saturated.

GPU Role — VRAM, clocks, and how they relate to this game's results

The Intel Arc B370 is an integrated graphics processor (IGP) built on Intel's 3 nm process with the Xe3-LPG architecture (chip Panther Lake). Its base clock is 300 MHz, boosting to 2400 MHz. The GPU has 1,280 shading units, 40 texture mapping units (TMUs), and 20 raster output units (ROPs). It includes 10 ray tracing cores. The pixel rate is 48.00 GPixel/s, and the texture rate is 96.00 GTexel/s. The FP32 performance is 6.144 TFLOPS, with FP16 at 12.29 TFLOPS (2:1). The TDP is 25 W, and it uses system shared memory with a bus width and bandwidth that are system dependent.

In Thief, the GPU's role is clearly the limiting factor. The measured FPS at 4K Ultra is 17 FPS, which is consistent with a GPU that has only 20 ROPs and a low fill rate relative to modern discrete GPUs. The game, released in 2014, was designed for DirectX 11-era hardware, and the Arc B370 supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4. However, the GPU's low shading unit count (1,280) and modest FP32 throughput (6.144 TFLOPS) are insufficient for high-resolution rendering in this title. The GPU's 3DMark Steel Nomad DX12 score of 1,184 places it at the 5th percentile of all GPUs, with nearest rivals being the ATI Mobility Radeon HD 5570 (1,186) and ATI Radeon HD 5770 (1,190). These are all legacy or entry-level parts, confirming the Arc B370's position.

The memory architecture is system shared, meaning the GPU relies on the CPU's DDR4 memory bandwidth (51.2 GB/s) rather than dedicated VRAM. This shared memory configuration can cause performance drops at higher resolutions, as the memory controller must handle both CPU and GPU traffic. The FPS scaling from 1080p to 4K—a drop of 60% at Low settings—supports this interpretation, as the GPU's texture and pixel throughput are insufficient to keep up with the increased pixel count. The 20 ROPs limit pixel fill rate, which is critical for a game like Thief with moderate geometry but heavy lighting effects. The data indicates that for playable framerates, the user must restrict the resolution to 1080p and settings to Low or Medium, where the GPU's limitations are less exposed.