Downfall

FAQ

Q: What is the average FPS for this combo in Downfall at 1080p with High settings?

A: The AMD Ryzen 5 8400F with Intel Arc B580 delivers an average of 122 FPS at 1920x1080 on High settings.

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

A: The Ryzen 5 8400F scores 25064 on average, which is essentially tied with the AMD Ryzen 7 2700X (25057) and 0.3% ahead of the AMD Ryzen 5 7500F (24993).

Q: What is the GPU's percentile ranking among all tested GPUs?

A: The Intel Arc B580 sits in the 66th percentile of all GPUs, with an average benchmark score of 23021.

Q: Does the combo achieve playable frame rates at 4K?

A: Yes, at 3840x2160 on High settings the combo averages 56.2 FPS, while Medium settings yield 69.1 FPS; Ultra drops to 34.4 FPS.

Q: How much VRAM does the Intel Arc B580 have?

A: The GPU features 12 GB of GDDR6 memory on a 192-bit bus, providing 456.0 GB/s of bandwidth.

Q: What is the launch MSRP of the CPU?

A: The AMD Ryzen 5 8400F has a launch MSRP of $170.

CPU Role

The AMD Ryzen 5 8400F is a 6-core, 12-thread processor based on the Zen 4 architecture (Phoenix codename), built on TSMC's 4 nm process. Its base clock is 4.20 GHz with a boost clock of 4.70 GHz. In Downfall, a horror title from 2016, the CPU's role is substantial but not dominant at higher resolutions. The data shows that at 1080p Low settings, the combo achieves 185.7 FPS, indicating the CPU can feed the GPU efficiently at lower graphical loads. The processor's single-thread performance, measured at 951 in 3dmark_single_thread and 2943 in Cinebench R23 single-core, is adequate for this game's engine.

The CPU's 16 MB of shared L3 cache and 1 MB L2 per core contribute to its responsiveness. In multi-threaded workloads, the Ryzen 5 8400F scores 20851 in Cinebench R23 multicore, placing it in the 82nd percentile of all CPUs. Its nearest rival, the AMD Ryzen 7 2700X, scores nearly identically (25057 vs 25064), while the Ryzen 5 7500F trails by 0.3%. This parity suggests that in CPU-bound scenarios, the 8400F holds its own against older and similarly positioned parts.

The processor supports DDR5 memory with dual-channel configuration and 83.2 GB/s bandwidth, which helps maintain consistent frame pacing. In Downfall, the difference between 1080p Low (185.7 FPS) and 1080p High (122 FPS) shows a 34% reduction, partially attributable to increased CPU overhead at higher settings. The 65W TDP and unlocked multiplier indicate an efficient, overclockable part that won't thermally throttle in extended sessions. The 4 nm process node and 25,000 million transistors on a 178 mm² die demonstrate modern efficiency, though the game itself is old enough that the CPU rarely becomes the primary constraint at 1440p or 4K.

GPU Role

The Intel Arc B580 is built on the Xe2-HPG architecture (Battlemage generation) using TSMC's 5 nm process. It features 2560 shading units, 160 TMUs, and 80 ROPs, with 20 ray tracing cores. The GPU runs at a flat 2670 MHz for both base and boost clocks, with memory clocked at 2375 MHz (19 Gbps effective). Its 12 GB GDDR6 memory on a 192-bit bus delivers 456.0 GB/s bandwidth, which is ample for Downfall's texture-heavy horror environments at 4K.

The GPU's compute capabilities include 13.67 TFLOPS FP32 and 27.34 TFLOPS FP16 (2:1). In synthetic benchmarks, the Arc B580 scores 3068 in 3DMark Steel Nomad DX12 and 15748 in Passmark G3D, placing it in the 66th percentile of all GPUs. Its nearest rival, the NVIDIA GeForce RTX 4060, scores 23181 (0.7% higher), while the AMD Radeon 760M scores 22999 (0.1% lower). This tight grouping indicates the Arc B580 performs competitively with mainstream options.

In Downfall, the GPU's role becomes increasingly dominant as resolution rises. At 1080p Low, the combo hits 185.7 FPS, but at 4K Low, it drops to 82.2 FPS, a 56% reduction that points squarely at GPU limits. The 12 GB VRAM ensures no memory capacity issues even at 4K Ultra, where the game still runs at 34.4 FPS. The 190W TDP and dual-slot design with a single 8-pin power connector make it a straightforward installation. The PCIe 4.0 x8 interface is sufficient for this workload, and the 272 mm length fits standard mid-tower cases.

How This Combo Ranks

The AMD Ryzen 5 8400F + Intel Arc B580 combination ranks 1335 out of 1741 tested combos in Downfall. This places it in the lower-middle tier of all configurations, which aligns with the component-level data: the CPU sits in the 82nd percentile while the GPU sits in the 66th percentile. The combo's rank suggests that while each component is respectable individually, the pairing doesn't push into upper-tier performance territory for this specific game.

The CPU's near-identical benchmark scores to the AMD Ryzen 7 2700X (delta 0%) and Ryzen 5 7500F (0.3% ahead) indicate that processor choice among these rivals won't dramatically shift the combo's ranking. Similarly, the GPU's 0.7% deficit to the RTX 4060 means swapping to that card would only marginally improve the overall rank. The data implies that the Arc B580 is the limiting factor in this pairing; upgrading the GPU would yield more ranking improvement than changing the CPU.

The combo's rank of 1335 out of 1741 means roughly 23% of tested configurations perform worse. This is consistent with a mid-range CPU paired with a mid-range GPU, where the GPU's 66th percentile score drags the overall ranking below the CPU's 82nd percentile standing. For Downfall, which is not particularly demanding by modern standards, this combo still delivers playable frame rates at most settings, but it won't top any leaderboards.

Measured FPS Breakdown

At 1920x1080, the combo delivers 185.7 FPS on Low, 151.4 FPS on Medium, 122 FPS on High, and 76 FPS on Ultra. The scaling from Low to Ultra shows a 59% performance drop, with each settings tier costing approximately 30-35 FPS. The game remains highly playable at every preset, with even Ultra exceeding 60 FPS.

Moving to 2560x1440, frame rates drop to 131.3 FPS on Low, 109.3 FPS on Medium, 90.4 FPS on High, and 55.1 FPS on Ultra. The transition from 1080p to 1440p costs roughly 29-30% performance across all settings. At this resolution, Ultra dips below 60 FPS, signaling that High is the practical ceiling for smooth gameplay.

At 3840x2160, the combo produces 82.2 FPS on Low, 69.1 FPS on Medium, 56.2 FPS on High, and 34.4 FPS on Ultra. The 4K jump from 1440p costs another 37-38% performance. Only Low and Medium presets maintain 60+ FPS at 4K. The Ultra preset at 34.4 FPS is borderline unplayable for a horror game where smooth motion matters for atmosphere.

Settings Recommendations

The measured data supports different presets depending on resolution priorities. At 1080p, Ultra settings at 76 FPS provide the best balance of visual fidelity and smoothness, as the frame rate stays comfortably above 60 FPS. Players with high-refresh monitors can drop to High for 122 FPS, nearly doubling the headroom for 120Hz displays.

At 1440p, High settings at 90.4 FPS deliver the best experience, maintaining fluid motion while preserving visual quality. Ultra drops to 55.1 FPS, which introduces noticeable stutter in a horror title where sudden movements matter. Medium at 109.3 FPS is viable for competitive play, but High offers the best compromise.

At 4K, Medium settings at 69.1 FPS provide the smoothest experience above the 60 FPS threshold. High at 56.2 FPS is acceptable for slower-paced exploration, but the drop below 60 FPS may be noticeable. Low at 82.2 FPS is the only preset with substantial headroom, but the visual sacrifice is significant. For the full 4K experience with Ultra visuals, players would need to accept 34.4 FPS, which is not recommended for a game reliant on tension and timing.

Resolution Scaling

The FPS scaling from 1080p to 4K reveals the limiting component clearly. At Low settings, performance drops from 185.7 FPS at 1080p to 131.3 FPS at 1440p (a 29.3% reduction) and then to 82.2 FPS at 4K (a 37.4% further reduction). The consistent degradation across all settings indicates GPU-bound behavior, as the CPU's performance ceiling isn't reached until lower resolutions.

At Ultra settings, the scaling is steeper: 76 FPS at 1080p, 55.1 FPS at 1440p (27.5% drop), and 34.4 FPS at 4K (37.6% drop). The proportional decreases across resolution tiers suggest the GPU's fill rate and memory bandwidth are the primary constraints. The Arc B580's 456.0 GB/s bandwidth and 213.6 GPixel/s pixel rate are being taxed heavily at 4K Ultra.

The CPU's role is most evident at 1080p Low, where 185.7 FPS approaches the limit of what the Ryzen 5 8400F can feed. As resolution increases, the GPU becomes the bottleneck, as evidenced by the larger FPS drops between 1440p and 4K compared to 1080p to 1440p. The data indicates that for this combo, 1440p is the sweet spot where the CPU and GPU are relatively balanced, while 4K leans heavily on GPU performance.