Pc Building Simulator

# Pc Building Simulator — Intel Core i7-12700KF + AMD Radeon RX 7900 XT

This combo pairs Intel's 12-core Alder Lake flagship-class CPU with AMD's RDNA 3.0 flagship GPU, producing a system that sits in the 81st percentile of all tested combinations for this simulation title. The data shows a setup that is heavily GPU-limited at 4K, but shifts toward CPU influence at lower resolutions, where frame rates exceed 390 FPS under the lightest settings. The measured results span from a demanding 61.3 FPS at 4K Ultra to a very high 392.6 FPS at 1080p Low, revealing a wide performance envelope that depends almost entirely on the workload presented to each component.

Resolution Scaling

The frame rate drop from 1080p to 4K is severe and consistent across all settings, indicating that the RX 7900 XT becomes the primary bottleneck as pixel count increases. At High settings, the average FPS falls from 198.9 at 1920x1080 to 123.0 at 2560x1440, then to 67.6 at 3840x2160 — a reduction of roughly 38% when moving from 1080p to 1440p, and another 45% when stepping up to 4K. This steep decline is characteristic of a simulation title where draw calls and object counts scale with resolution, and the GPU's 20 GB frame buffer is taxed heavily at 4K.

Low settings show an even more dramatic spread: 392.6 FPS at 1080p, 246.4 at 1440p, and 127.5 at 4K. The 4K figure is less than one-third of the 1080p result, which suggests that even with minimal graphical load, the GPU's raw throughput at 3840x2160 (over 8.3 million pixels) limits the system far more than the CPU does. By contrast, at 1080p Low, the CPU's 12 cores and 20 threads have enough headroom to push frame rates near the 400 FPS mark, at which point the GPU is likely idling or lightly loaded.

Medium settings follow the same pattern: 279.6 FPS at 1080p, 178.2 at 1440p, and 90.5 at 4K. The scaling factor from 1080p to 4K is 3.09x, which is close to the pixel count ratio of 4x, implying near-linear GPU scaling with only minor CPU interference. Ultra settings present the lowest absolute numbers — 189.3 FPS at 1080p, 117.9 at 1440p, and 61.3 at 4K — with the 4K result dropping below the 60 FPS threshold that many users consider a minimum for smooth gameplay. The data indicates that for 4K Ultra, the GPU is the sole limiting factor, while at 1080p Ultra, the CPU still delivers enough throughput to keep the GPU well-fed, given the 3.09x scaling ratio.

CPU Role

The Intel Core i7-12700KF provides 12 physical cores and 20 threads, built on Intel's 10 nm process with a base clock of 3.60 GHz and a boost clock of 5.00 GHz. This Alder Lake-S architecture includes a 25 MB shared L3 cache and per-core L1 and L2 caches of 80 KB and 1.25 MB, respectively. In Pc Building Simulator, a game about assembling and managing PC hardware, the workload is primarily logic-driven, with many simulated components and interactions that benefit from high single-thread performance and moderate multi-threading.

The CPU's benchmark scores support this interpretation. Its single-thread performance is solid, with a 3DMark single-thread score of 1043 and a Cinebench R23 single-core score of 4091, placing it in the 89th percentile among all CPUs. The multi-thread scores are also strong: Cinebench R23 multi-core reaches 28979, and PassMark multi-thread hits 34092. However, the game's frame rates at 1080p Low (392.6 FPS) versus 4K Low (127.5 FPS) suggest that the CPU is not the bottleneck at any resolution above 1080p; the 3.09x scaling ratio from 1080p to 4K at Low settings is nearly identical to the ratio at Ultra (3.09x vs 3.09x), which indicates the GPU is consistently the limiting component across all settings.

The 12-core, 20-thread configuration is more than sufficient for this simulation, as evidenced by the fact that the system achieves 392.6 FPS at 1080p Low — a rate that far exceeds display refresh rates for most monitors. The CPU's boost clock of 5.00 GHz likely contributes to maintaining high frame rates in CPU-bound scenarios, but the data shows that even at 1080p Ultra, the system still delivers 189.3 FPS, which is well above playable thresholds. The nearest rival CPU, the Intel Core i5-14400, scores 35336 in average benchmark score versus 35355 for the i7-12700KF, a delta of only 0.1%, indicating that the CPU's performance class is not a differentiator in this title.

GPU Role

The AMD Radeon RX 7900 XT is a 5 nm RDNA 3.0 part with 5376 shading units, 336 texture mapping units, and 192 raster output units. Its 20 GB of GDDR6 memory runs across a 320-bit bus, delivering 800.0 GB/s of bandwidth. The boost clock is 2394 MHz, with a game clock of 2025 MHz and a base clock of 1387 MHz. This GPU has 84 ray tracing cores and supports DirectX 12 Ultimate (12_2), Vulkan 1.4, and OpenGL 4.6, making it fully compatible with the simulation's rendering needs.

In Pc Building Simulator, the GPU's role becomes increasingly dominant as resolution rises. At 4K Ultra, the system produces 61.3 FPS, which is just above the 60 FPS threshold but not by much. The GPU's 20 GB frame buffer is ample for this title, but the raw compute throughput — 51.48 TFLOPS FP32 — is what drives the 4K performance. The PassMark G3D score of 29009 places the GPU in the 82nd percentile among all GPUs, and its nearest rival, the NVIDIA GeForce RTX 5080 Mobile, scores 38349 versus 38358 for the RX 7900 XT, a delta of 0.0%.

The memory bandwidth of 800.0 GB/s is likely a key factor at 4K, where texture streaming and large framebuffer accesses become more demanding. The 20 GB capacity exceeds what most games need, but the bandwidth ensures that high-resolution textures do not cause stuttering. At 1080p, the GPU is not stressed, as shown by the 392.6 FPS at Low settings — a figure that suggests the GPU could go even higher if the CPU allowed. At 1440p Ultra, the system hits 117.9 FPS, which is a comfortable margin above 60 FPS, and at 4K Medium, it maintains 90.5 FPS, indicating that users can dial down settings slightly to achieve smooth 4K gameplay.

Measured FPS Breakdown

At 1920x1080, the system delivers its highest frame rates across all settings. Low settings produce 392.6 FPS, Medium 279.6 FPS, High 198.9 FPS, and Ultra 189.3 FPS. The gap between Medium and High is notable — a drop of 80.7 FPS — while the gap between High and Ultra is only 9.6 FPS, suggesting diminishing returns from the highest preset. The 1080p results indicate that the CPU is capable of feeding the GPU up to nearly 400 FPS under minimal load, but the GPU's performance at higher settings becomes the constraining factor.

At 2560x1440, the frame rates are substantially lower but still very playable: Low 246.4 FPS, Medium 178.2 FPS, High 123.0 FPS, and Ultra 117.9 FPS. The scaling from 1080p to 1440p is roughly 1.6x slower on average, which corresponds to the pixel count increase of 1.78x. This near-linear scaling suggests that the GPU is the bottleneck at this resolution, as the CPU's 5.00 GHz boost clock provides enough headroom. The Ultra preset at 1440p (117.9 FPS) is nearly double the 4K Ultra result (61.3 FPS), reinforcing that resolution is the dominant factor.

At 3840x2160, the system's performance drops significantly: Low 127.5 FPS, Medium 90.5 FPS, High 67.6 FPS, and Ultra 61.3 FPS. The jump from Low to Medium costs 37.0 FPS, while Medium to High costs 22.9 FPS, and High to Ultra costs 6.3 FPS. This indicates that the GPU is reaching its limits at 4K, and each additional graphics feature has a smaller absolute impact on frame rate. The 61.3 FPS at 4K Ultra is the only measured configuration that falls below 60 FPS, making it the only scenario where users might need to adjust settings for smoother performance.

How This Combo Ranks

The Intel Core i7-12700KF + AMD Radeon RX 7900 XT combination ranks 340th out of 1769 tested combos in Pc Building Simulator, placing it in the top 19.2% of all configurations. This is a strong showing, though not a top-tier placement, likely because the game is more CPU-bound than GPU-bound at lower resolutions, and the i7-12700KF's 12-core design is not as optimized for this title as newer architectures might be. The CPU's 89th percentile ranking among all CPUs and the GPU's 82nd percentile ranking among all GPUs combine to produce a system that is well above average but not in the elite bracket.

The combo's rank suggests that there are many other configurations that achieve higher frame rates, particularly those with faster single-thread performance or higher GPU clock speeds. However, the measured FPS data shows that this combo delivers over 60 FPS at 4K Ultra and over 117 FPS at 1440p Ultra, which is more than sufficient for most users. The gap between this combo's rank (340) and the top combos is likely due to the CPU's 10 nm process node and the GPU's 5 nm process, both of which are mature but not high-end at the time of testing. The 12-core CPU provides ample multi-threaded performance, but the game's single-threaded nature may not fully utilize all 20 threads, leaving some performance on the table compared to higher-clocked parts.

FAQ

Q: What is the highest average FPS this combo achieves in Pc Building Simulator?

A: The highest measured average FPS is 392.6 at 1920x1080 with Low settings. The next highest is 279.6 FPS at 1080p Medium, followed by 246.4 FPS at 1440p Low.

Q: Can this system run the game at 4K with playable frame rates?

A: Yes, at 4K Ultra it averages 61.3 FPS, and at 4K High it averages 67.6 FPS. For smoother performance, dropping to 4K Medium yields 90.5 FPS, and 4K Low reaches 127.5 FPS.

Q: How does the CPU compare to its nearest rival in raw benchmark score?

A: The Intel Core i7-12700KF has an average benchmark score of 35355, which is 0.1% higher than the Intel Core i5-14400's score of 35336. The i7-12700KF also scores 0.2% higher than the Intel Core i9-12900HX (35289) and 0.3% higher than the Intel Core i5-13600T (35256).

Q: What is the GPU's performance percentile and closest competitor?

A: The AMD Radeon RX 7900 XT ranks in the 82nd percentile among all GPUs, with an average benchmark score of 38358. Its nearest rival is the NVIDIA GeForce RTX 5080 Mobile, which scores 38349, a delta of 0.0%. The NVIDIA CMP 70HX scores 38225 (0.3% lower), and the NVIDIA GeForce RTX 4080 Mobile scores 38135 (0.6% lower).

Q: At which resolution and settings does the frame rate drop below 60 FPS?

A: The only measured configuration below 60 FPS is 3840x2160 with Ultra settings, which averages 61.3 FPS — actually above 60. No configuration in the measured data falls below 60 FPS, with the lowest being 4K Ultra at 61.3 FPS.

Q: How does the combo rank among all tested configurations for this game?

A: This CPU-GPU combo ranks 340th out of 1769 tested combos, placing it in the top 19.2% of all configurations. The CPU itself ranks in the 89th percentile among all CPUs, while the GPU ranks in the 82nd percentile among all GPUs.