Thief

The Intel Core i5-12400 paired with the AMD Radeon RX 7900 XTX ranks 275th out of 1,642 tested combos in Thief, placing it comfortably in the top 17% of all configurations. This is a strong position, though the ranking reflects the game's age and the fact that this 2014 stealth title is far more forgiving on hardware than modern releases. The combo's standing is driven almost entirely by the GPU, as the i5-12400's processor percentile of 77 puts it in the upper-middle tier of all CPUs, while the RX 7900 XTX's GPU percentile of 85 shows it sits higher in its own hierarchy. The delta between the CPU and GPU rankings suggests the graphics card is doing the heavy lifting in this pairing, which is typical for a game like Thief that relies more on shading and fill rate than on complex physics or AI simulation.

How This Combo Ranks

The 275th position out of 1,642 combos places this pairing in the 83rd percentile of all tested systems, meaning it outperforms roughly 83% of the database's configurations. This is a notable achievement given that the i5-12400 is a 6-core, 12-thread Alder Lake part with a 65W TDP, not a flagship processor. The CPU's average benchmark score of 19,850 places it nearly identical to the Intel Core i7-9700, which scores 19,831 (a delta of just 0.1%), and the Intel Core i7-8700 at 19,894 (a delta of -0.2%). It also edges out the Intel Core i5-11600K, which scores 19,771 (a delta of 0.4%). This grouping shows the i5-12400 is squarely in the performance tier of older high-end chips, but it is not a standout in raw compute.

The GPU, however, shifts the balance decisively. The RX 7900 XTX's average benchmark score of 44,019 puts it within 0.4% of the AMD Radeon Pro 580 (44,195) and 0.8% ahead of the NVIDIA GeForce RTX 4090 Mobile (43,667). It also leads the NVIDIA Quadro M6000 by 1.6% (43,313) but trails the NVIDIA GeForce RTX 4070 Ti by 2% (44,900). These margins are small, indicating the RX 7900 XTX is clustered with high-end GPUs from both current and previous generations. In Thief specifically, the data shows the combo achieves playable frame rates even at 4K Ultra, which confirms the GPU's ability to compensate for the CPU's mid-tier standing in synthetic tests.

GPU Role

The AMD Radeon RX 7900 XTX is the dominant component in this pairing, and its specifications explain why. It features 24 GB of GDDR6 memory on a 384-bit bus, yielding a bandwidth of 960.0 GB/s. This massive memory pool is overkill for Thief, which was released in 2014 and does not require anywhere near that capacity, but it ensures zero memory pressure even at the highest resolutions. The GPU's clock speeds are equally imposing: a base clock of 1,929 MHz, a game clock of 2,365 MHz, and a boost clock of 2,498 MHz. The memory runs at 2,500 MHz with 20 Gbps effective speed, which aligns with the card's 960.0 GB/s bandwidth figure.

These clocks translate into raw throughput that Thief can exploit. The GPU's pixel rate of 479.6 GPixel/s and texture rate of 959.2 GTexel/s are far beyond what this game's engine can saturate, meaning the bottleneck in most scenarios will be the CPU or the game's own engine limitations, not the graphics card. The 6,144 shading units and 192 ROPs provide ample fill rate for the game's shadow-heavy stealth environments. The card's FP32 performance of 61.39 TFLOPS and FP16 of 122.8 TFLOPS (at a 2:1 ratio) are headline numbers, but Thief's DirectX 11-era rendering pipeline cannot leverage them fully. The GPU also supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4, though the game's original API support is more limited, so the measured FPS likely reflects the game's default rendering path rather than the GPU's full feature set.

Settings Recommendations

The measured FPS data reveals that the optimal settings depend heavily on the target resolution, but a clear pattern emerges. At 1920x1080, the Low preset produces 169 FPS, Medium hits 157 FPS, High delivers 141.8 FPS, and Ultra drops to 136.7 FPS. The gap between Low and Ultra is only 32.3 FPS, or roughly 19%, which is surprisingly narrow. This suggests the game is not particularly demanding at 1080p, and the GPU's headroom is so large that even the highest preset leaves performance to spare. For competitive or high-refresh-rate play, Medium at 157 FPS offers a good balance, but High at 141.8 FPS is still well above the 144Hz threshold for most monitors.

At 2560x1440, the spread widens slightly. Low produces 149.6 FPS, Medium drops to 136.9 FPS, High falls to 117 FPS, and Ultra lands at 111.3 FPS. The 38.3 FPS difference between Low and Ultra (a 25.6% reduction) is more pronounced, but Ultra still exceeds 110 FPS, making it the recommended preset for 1440p users who prioritize visual quality. The High setting at 117 FPS is also viable for those who want a slight performance buffer. At 3840x2160, the situation changes more dramatically. Low yields 120.5 FPS, Medium drops to 93.2 FPS, High falls to 71.8 FPS, and Ultra bottoms out at 66.5 FPS. Here, the 54 FPS gap between Low and Ultra (a 44.8% reduction) is substantial, and the choice becomes a trade-off between smoothness and fidelity. For 4K, Medium at 93.2 FPS is the sweet spot, as it maintains a high frame rate while offering better visuals than Low. High at 71.8 FPS is acceptable for slower-paced stealth gameplay, but Ultra at 66.5 FPS may introduce noticeable dips in busy scenes.

Measured FPS Breakdown

At 1920x1080, the combo delivers its highest absolute performance. The Low preset achieves an average of 169 FPS, which is the single highest measured value in the entire dataset. Medium follows at 157 FPS, High at 141.8 FPS, and Ultra at 136.7 FPS. The progression from Low to Ultra is nearly linear, with each step costing roughly 7-10% performance. The 1080p results show that the CPU-GPU pair is not limiting here; even at Low, the frame rate is capped by the game's engine or the display's refresh rate rather than hardware capabilities.

Moving to 2560x1440, the numbers remain high but begin to show the GPU's workload increasing. Low yields 149.6 FPS, which is only 19.4 FPS lower than the 1080p Low result. Medium produces 136.9 FPS, a 20.1 FPS drop from 1080p Medium. High achieves 117 FPS, a 24.8 FPS reduction, and Ultra hits 111.3 FPS, a 25.4 FPS decline. The 1440p results demonstrate that the RX 7900 XTX has ample headroom to maintain triple-digit frame rates across all presets, though the gap between presets widens compared to 1080p.

At 3840x2160, the performance curve steepens significantly. Low produces 120.5 FPS, which is still excellent for 4K. Medium drops to 93.2 FPS, a 27.3 FPS reduction from Low. High falls further to 71.8 FPS, and Ultra bottoms out at 66.5 FPS. The 4K data shows that the GPU is finally being pushed, but even the lowest preset exceeds 120 FPS, and the Ultra preset remains playable. The 54 FPS spread between Low and Ultra at 4K contrasts sharply with the 32.3 FPS spread at 1080p, indicating that resolution scaling has a predictable effect on the GPU's workload.

FAQ

Q: How does this combo compare to the nearest CPU rivals in terms of overall performance?

A: The Intel Core i5-12400 scores 19,850 on average, which is only 0.1% ahead of the Intel Core i7-9700 (19,831) and 0.4% ahead of the Intel Core i5-11600K (19,771). It trails the Intel Core i7-8700 by 0.2% (19,894) and the AMD Ryzen Threadripper PRO 5995WX by 0.4% (19,928). These deltas are negligible, meaning the CPU is effectively equivalent to those parts for this game.

Q: What is the highest measured frame rate in the dataset?

A: The highest average FPS recorded is 169 at 1920x1080 with the Low preset. The next best is 157 FPS at 1080p Medium, followed by 149.6 FPS at 1440p Low.

Q: Is the RX 7900 XTX's 24 GB of VRAM necessary for Thief?

A: No, the game was released in 2014 and does not require that capacity. The GPU's 24 GB of GDDR6 memory with 960.0 GB/s bandwidth is far beyond what Thief can utilize, but it ensures zero memory bottlenecks at any resolution or preset.

Q: What is the best preset for 4K gaming?

A: At 3840x2160, the Medium preset provides 93.2 FPS, which is the best balance between visual quality and smoothness. High at 71.8 FPS is also playable, while Low at 120.5 FPS is the only preset that exceeds 120 FPS at this resolution.

Q: How does the GPU's synthetic benchmark score translate to Thief performance?

A: The RX 7900 XTX scores 44,019 on average, placing it 0.8% ahead of the NVIDIA GeForce RTX 4090 Mobile and 1.6% ahead of the NVIDIA Quadro M6000. In Thief, this translates to ultra-class performance at 1080p and 1440p, with 4K Ultra still hitting 66.5 FPS.

Q: Is this combo more limited by the CPU or the GPU in Thief?

A: The CPU's percentile of 77 versus the GPU's percentile of 85 suggests the processor is the weaker link. However, the measured FPS shows the combo still delivers 136.7 FPS at 1080p Ultra, indicating that the CPU is sufficient for this game's engine, and the GPU is the primary driver of performance.