Pc Building Simulator

# Pc Building Simulator — AMD Ryzen 5 8400F + NVIDIA GeForce RTX 5070 Ti

This combination places 146th out of 1,769 tested CPU-GPU pairings in Pc Building Simulator, putting it in the top 8% of all configurations tracked. The pairing of AMD's 6-core Zen 4 desktop processor with NVIDIA's Blackwell 2.0 flagship-class GPU produces a system that is clearly GPU-bound at higher resolutions, yet reveals interesting CPU headroom at 1080p. The measured frame rates across all three resolutions and four settings presets show a component balance that favors high-refresh 1440p gaming as the sweet spot.

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

The AMD Ryzen 5 8400F is a 6-core, 12-thread processor built on the Zen 4 (Phoenix) architecture using TSMC's 4 nm process. It operates with a base clock of 4.20 GHz and a boost clock of 4.70 GHz, drawing 65 W TDP. The CPU features 64 KB of L1 cache per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. Memory support is DDR5 over a dual-channel bus, delivering 83.2 GB/s of bandwidth. The chip sits on AMD Socket AM5 and provides PCIe Gen 4 with 20 lanes from the CPU.

In synthetic benchmarks, the 8400F achieves a Cinebench R23 multi-core score of 20,851 and a single-core score of 2,943. The 3DMark scores scale from 951 single-thread up to 6,165 at max threads, indicating solid scaling across its 12 threads. The average benchmark score of 25,064 places it at the 82nd percentile among all CPUs. Its nearest rival is the AMD Ryzen 7 2700X, which scores 25,057 — a delta of 0%. The Ryzen 5 7500F sits 0.3% behind, while the Ryzen AI 5 PRO 340 and EPYC 9474F trail by 0.1% and 0.2% respectively.

For Pc Building Simulator, a simulation title that is not traditionally thread-hungry, the 8400F's 6 cores and 12 threads are more than adequate. The single-thread performance — evidenced by the 3DMark single-thread score of 951 and Cinebench R23 single-core of 2,943 — matters more than raw multi-thread throughput for maintaining high frame rates. The data supports this: at 1080p Low settings, the system achieves 372.8 FPS, which suggests the CPU can feed frames well beyond typical display refresh rates. The boost clock of 4.70 GHz helps keep frame pacing consistent, particularly in scenes where the simulation logic (component placement, thermal calculations, case airflow) runs on the CPU while the GPU renders the workshop environment.

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

The NVIDIA GeForce RTX 5070 Ti is built on the Blackwell 2.0 architecture with the GB203 chip, fabricated on TSMC's 5 nm process. It packs 16 GB of GDDR7 memory on a 256-bit bus, delivering 896.0 GB/s of bandwidth. The GPU runs at a base clock of 2295 MHz with a boost clock of 2452 MHz, and memory operates at 1750 MHz (28 Gbps effective). The card has 8,960 shading units, 280 texture mapping units, 96 ROPs, 70 RT cores, and 280 tensor cores. Pixel rate is 235.4 GPixel/s, texture rate is 686.6 GTexel/s, and FP32 compute is 43.94 TFLOPS. The GPU draws 300 W TDP and requires a 700 W suggested PSU.

In PassMark, the RTX 5070 Ti scores 32,974 in G3D and 20,203 in GPU compute. Its average benchmark score of 52,086 places it at the 87th percentile among all GPUs. The nearest rival is the NVIDIA GeForce RTX 4080 with a score of 52,085 — a delta of 0%. The AMD Radeon RX 7700S sits 0.8% ahead, the AMD Radeon Pro W6600M is 2.5% ahead, and the NVIDIA RTX A1000 trails by 2.5%.

For Pc Building Simulator, the RTX 5070 Ti's 16 GB VRAM is effectively overkill — the game's visual fidelity, while pleasant, does not demand large memory pools. The 896.0 GB/s bandwidth is likewise far more than the title requires. What matters more is the raw rasterization throughput, and the data shows the GPU is the limiting factor at 4K. At 3840x2160 Ultra, the system drops to 71.1 FPS, while at 1080p Low it hits 372.8 FPS — a 5.2x difference that clearly implicates the GPU as the bottleneck at higher resolutions. The RTX 5070 Ti's boost clock of 2452 MHz ensures consistent performance in scenes with multiple PC builds on screen, where draw calls and object counts increase.

FAQ

Q: Is this CPU-GPU combo balanced for Pc Building Simulator?

A: The data shows a reasonable balance, but with a notable skew. At 1080p, the CPU allows the GPU to stretch to 372.8 FPS on Low settings, indicating the 8400F is not holding back the RTX 5070 Ti at lower resolutions. At 4K Ultra, the frame rate drops to 71.1 FPS, which is a GPU-driven limitation.

Q: How does the Ryzen 5 8400F compare to its nearest CPU rivals?

A: The 8400F's average benchmark score of 25,064 is essentially tied with the AMD Ryzen 7 2700X at 25,057 (0% delta) and the AMD Ryzen AI 5 PRO 340 at 25,099 (-0.1% delta). It is 0.3% faster than the Ryzen 5 7500F and 0.2% faster than the AMD EPYC 9474F.

Q: What is the strongest resolution for this combo in this game?

A: The measured FPS data indicates 2560x1440 is the sweet spot. At High settings, the system produces 140.9 FPS, which is well above 60 FPS and smooth on high-refresh monitors. At 4K High, it drops to 76 FPS, which is playable but less comfortable for competitive play.

Q: How does the RTX 5070 Ti stack up against the RTX 4080?

A: The two GPUs are effectively identical in average benchmark score: 52,086 for the 5070 Ti versus 52,085 for the RTX 4080, a delta of 0%. In Pc Building Simulator, the 5070 Ti's 16 GB GDDR7 memory and 896.0 GB/s bandwidth provide ample headroom for any settings combination.

Q: Does the CPU's 65 W TDP limit performance in this game?

A: No, the data does not suggest thermal or power constraints. The 8400F's 65 W TDP is modest, and its boost clock of 4.70 GHz is sufficient to sustain high frame rates — the 1080p Low result of 372.8 FPS demonstrates that the CPU can push well over 300 FPS.

Q: What percentile does this combo rank in overall?

A: The combination ranks 146th out of 1,769 tested configurations, placing it in the top 8.3% of all recorded pairings for this game.

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

At 1920x1080, the RTX 5070 Ti paired with the 8400F delivers exceptional frame rates across all presets. Low settings produce 372.8 FPS average, Medium yields 319.2 FPS, High drops to 222.7 FPS, and Ultra settles at 212.3 FPS. The gap between Low and Medium is 53.6 FPS, while the drop from High to Ultra is only 10.4 FPS — indicating diminishing returns at the top end.

At 2560x1440, the frame rates remain high but show a steeper falloff. Low settings average 284.4 FPS, Medium hits 199.9 FPS, High reaches 140.9 FPS, and Ultra drops to 137.3 FPS. The difference between High and Ultra at this resolution is just 3.6 FPS, suggesting the Ultra preset adds little visual benefit for the performance cost.

At 3840x2160, the GPU begins to show its limits. Low settings average 147.9 FPS, Medium drops to 106 FPS, High falls to 76 FPS, and Ultra bottoms out at 71.1 FPS. The scaling from Low to Ultra at 4K is a 76.8 FPS drop, which is the most pronounced across all resolutions. The transition from Medium to High at 4K costs 30 FPS, while High to Ultra only costs 4.9 FPS.

Comparing across resolutions at the same settings, the pattern is consistent: 1080p to 1440p at High settings costs 81.8 FPS (222.7 to 140.9), and 1440p to 4K at High costs 64.9 FPS (140.9 to 76). At Ultra, the drops are 75 FPS from 1080p to 1440p (212.3 to 137.3) and 66.2 FPS from 1440p to 4K (137.3 to 71.1).

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

The resolution scaling data reveals a classic GPU-bound profile. From 1080p to 1440p at Low settings, frame rates drop by 88.4 FPS (from 372.8 to 284.4), a 23.7% reduction. From 1440p to 4K at Low, the drop is 136.5 FPS (284.4 to 147.9), a 48% reduction. This accelerating decline as resolution increases is the signature of a GPU that is approaching its pixel-pushing limits.

At High settings, the scaling is more linear: 1080p to 1440p costs 81.8 FPS (36.7% drop), and 1440p to 4K costs 64.9 FPS (46.1% drop). The Ultra preset shows a similar pattern: 75 FPS lost from 1080p to 1440p (35.3% drop) and 66.2 FPS lost from 1440p to 4K (48.2% drop).

The fact that 4K frame rates remain above 71 FPS even at Ultra settings suggests the RTX 5070 Ti's 16 GB VRAM and 896.0 GB/s bandwidth are not being saturated. If memory bandwidth were the bottleneck, the drop from 1440p to 4K would be disproportionately larger than the 1080p-to-1440p drop. Instead, the scaling is consistent with compute-bound rendering, where the GPU's 43.94 TFLOPS FP32 throughput is the limiting factor.

The CPU's role in this scaling is minimal. At 1080p Low, the system pushes 372.8 FPS, which is far beyond what most displays can show. The 8400F's 6 cores and 12 threads, with a boost clock of 4.70 GHz, are sufficient to avoid CPU bottlenecks even at these extreme frame rates. The data suggests that for this game, the CPU is never the primary limiter — the GPU takes over that role as resolution increases.

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

For 1920x1080 displays, the Ultra preset at 212.3 FPS is the clear recommendation. The 10.4 FPS difference between High (222.7) and Ultra (212.3) is negligible, and the visual improvements from the Ultra preset are worth the small performance cost. Even at Ultra, the frame rate is more than triple the 60 FPS baseline, providing headroom for recording or streaming overhead.

For 2560x1440, the High preset at 140.9 FPS offers the best balance. The step from High to Ultra costs only 3.6 FPS (140.9 to 137.3), so either is viable. However, the Medium preset at 199.9 FPS is worth considering for competitive play on high-refresh monitors — the 59 FPS gain over High may be more valuable than the visual fidelity increase. The data shows diminishing returns beyond Medium at this resolution.

For 3840x2160, the Low preset at 147.9 FPS is the only way to fully exploit high-refresh 4K displays. The Medium preset at 106 FPS is the best compromise for 60-100 Hz panels, as it provides a 30 FPS improvement over High (76 FPS) while maintaining solid visual quality. The Ultra preset at 71.1 FPS is only recommended for players who prioritize maximum visual fidelity over smoothness, as the 4.9 FPS gain from High to Ultra is imperceptible in practice.

Across all resolutions, the Ultra preset's performance cost relative to High is consistently small (4.9 FPS at 4K, 3.6 FPS at 1440p, 10.4 FPS at 1080p). This suggests the Ultra preset in Pc Building Simulator adds modest visual enhancements that do not justify the additional GPU load at lower resolutions, but at 1080p the absolute frame rates are so high that the choice is purely preferential. The Medium preset offers the steepest performance-per-visual-quality ratio, particularly at 1440p where it delivers 199.9 FPS — a 42% improvement over High.