Downfall

The AMD Ryzen 5 8400F and AMD Radeon RX 6750 XT combination delivers a solid 1080p and 1440p experience in Downfall, with 4K requiring settings compromises. The pairing of a 6-core Zen 4 processor with a 12 GB RDNA 2 GPU places this build in the upper-middle tier of tested configurations, offering high frame rates at mainstream resolutions while capping out at 4K Ultra.

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

The AMD Ryzen 5 8400F brings 6 cores and 12 threads to the table, running at a 4.20 GHz base clock and boosting up to 4.70 GHz. Built on the Zen 4 architecture (Phoenix codename) using a 4 nm process from TSMC, this CPU has a 65 W TDP and supports DDR5 memory via a dual-channel bus with 83.2 GB/s of bandwidth. The processor includes 64 KB of L1 cache per core, 1 MB of L2 per core, and 16 MB of shared L3 cache, which is ample for feeding a mid-range GPU in a horror title like Downfall.

Benchmark data shows the 8400F performs strongly in both single-threaded and multi-threaded workloads. Its Cinebench R23 multi-core score of 20851 and single-core score of 2943 indicate that it can handle the CPU overhead of maintaining high frame rates without becoming a bottleneck. The 3DMark 16-thread score of 6091 and max-thread score of 6165 are nearly identical, suggesting that the 12 threads are efficiently utilized but that adding more cores wouldn't meaningfully change results in this game. The PassMark single-thread score of 3684 reinforces that per-core performance is a strength here.

In Downfall, the CPU's role is secondary to the GPU at higher resolutions, as the measured FPS numbers show. At 1080p Low, the combo reaches 238.6 FPS, which is high enough that even a strong processor is part of the equation. However, the gap between 1080p and 4K results suggests that the GPU takes over as the primary limiter as resolution increases.

How This Combo Ranks

This specific combination of the Ryzen 5 8400F and RX 6750 XT ranks 831 out of 1741 tested combos in Downfall. That places it in the 47th percentile of all combinations, meaning roughly half of the tested setups perform better and half perform worse. This mid-pack ranking is consistent with the hardware's positioning: the CPU sits at the 82nd percentile among all CPUs, while the GPU is at the 79th percentile among all GPUs.

The CPU's nearest rivals in overall benchmark score include the AMD Ryzen 7 2700X (deltaPct 0), the AMD Ryzen AI 5 PRO 340 (deltaPct -0.1), the AMD EPYC 9474F (deltaPct -0.2), and the AMD Ryzen 5 7500F (deltaPct 0.3). The 8400F essentially matches these processors, with a 0.3% advantage over the 7500F and a 0.2% deficit against the EPYC 9474F. For the GPU, the nearest rivals are the AMD Radeon RX 5600M (deltaPct 0.2), NVIDIA GeForce RTX 5070 Ti Mobile (deltaPct -0.3), AMD Radeon 880M (deltaPct -0.9), and NVIDIA GeForce RTX 3080 (deltaPct -1.3). The RX 6750 XT trails the RTX 3080 by 1.3% in aggregate GPU benchmarks, which is a small margin.

Given that both components are within a few percentage points of their nearest rivals, the 831st rank out of 1741 combos reflects a balanced pairing rather than one that punches far above its weight class.

FAQ

*Q: Can this combo run Downfall at 4K?*

A: Yes, but with caveats. At 4K High, the average FPS is 74.4, which is playable. At 4K Ultra, the average drops to 48.1 FPS, which is below the 60 FPS threshold most players prefer.

Q: What resolution gives the best frame rate headroom?

A: 1080p offers the highest frame rates across all settings. Even at 1080p Ultra, the average FPS is 99.5, while 1080p Low reaches 238.6 FPS.

Q: How does the CPU compare to its direct rival, the Ryzen 5 7500F?

A: The 8400F has a 0.3% higher average benchmark score than the Ryzen 5 7500F, making them effectively equivalent in performance.

*Q: Is the GPU's 12 GB of VRAM sufficient for Downfall?*

A: The data shows playable frame rates at all tested settings and resolutions, indicating that 12 GB of VRAM is not a limiting factor for this game.

Q: What is the difference between Medium and High settings at 1440p?

A: At 2560x1440, Medium averages 140.7 FPS while High averages 115.1 FPS. The 25.6 FPS gap is significant, but both are well above 60 FPS.

Q: How does the GPU's DirectX performance look in this title?

A: The PassMark DirectX 11 score of 180 is more than double the DirectX 12 score of 80, suggesting the card may perform better under older API paths in some workloads.

Measured FPS Breakdown

At 1920x1080, the combo delivers its strongest results. Low settings produce an average of 238.6 FPS, Medium reaches 193.8 FPS, High hits 159.7 FPS, and Ultra settles at 99.5 FPS. All settings at 1080p clear the 60 FPS mark by a wide margin, with even Ultra nearly doubling that threshold.

Moving to 2560x1440, performance remains strong but drops off. Low averages 172.6 FPS, Medium 140.7 FPS, High 115.1 FPS, and Ultra 70.7 FPS. The step from High to Ultra at 1440p costs 44.4 FPS, which is a substantial hit for the visual upgrade. Still, every settings tier at 1440p stays above 70 FPS, making this a very usable resolution for the combo.

At 3840x2160, the GPU begins to struggle. Low averages 110.2 FPS, Medium 87 FPS, High 74.4 FPS, and Ultra drops to 48.1 FPS. The 4K Ultra result is the only measured configuration that falls below 60 FPS, indicating that this is the ceiling for the RX 6750 XT in Downfall.

The scaling pattern is consistent: each settings tier up reduces FPS by roughly 20-30% depending on resolution. The gap between Low and Ultra is largest at 1080p (139.1 FPS difference) and smallest at 4K (62.1 FPS difference), which suggests that the GPU becomes more of a bottleneck at higher resolutions regardless of settings.

GPU Role

The AMD Radeon RX 6750 XT uses the Navi 22 chip on RDNA 2.0 architecture, built on TSMC's 7 nm process with 17,200 million transistors on a 335 mm² die. It has a base clock of 2150 MHz, a game clock of 2495 MHz, and a boost clock of 2600 MHz. Memory runs at 2250 MHz (18 Gbps effective) across a 192-bit bus, providing 432.0 GB/s of bandwidth through 12 GB of GDDR6 VRAM.

The GPU's 2560 shading units, 160 TMUs, and 64 ROPs deliver a pixel rate of 166.4 GPixel/s and a texture rate of 416.0 GTexel/s. Compute performance is rated at 13.31 TFLOPS for FP32 and 26.62 TFLOPS for FP16 (2:1 ratio). The card includes 40 ray tracing cores and supports DirectX 12 Ultimate (12_2), OpenGL 4.6, and Vulkan 1.4.

In Downfall, the GPU's role is pivotal at higher resolutions. The 4K Ultra result of 48.1 FPS versus the 1080p Ultra result of 99.5 FPS shows a 51.4 FPS drop when resolution quadruples pixel count. The 12 GB VRAM pool is sufficient across all tested scenarios, as no settings combination produced a result that would indicate memory pressure. The card's PassMark G3D score of 20700 and Geekbench Vulkan score of 109310 place it in the 79th percentile of all GPUs, a solid mid-high tier position.

Settings Recommendations

For 1080p displays, Ultra settings are the clear choice. The 99.5 FPS average at 1080p Ultra is well above the 60 FPS standard, and the visual quality improvement over High (159.7 FPS) is worth the 60.2 FPS trade-off. If you have a 144 Hz monitor, High settings at 1080p will keep you closer to that refresh rate ceiling.

At 1440p, the sweet spot is High settings with a 115.1 FPS average. Medium at 140.7 FPS offers a 25.6 FPS advantage but noticeably lower visual fidelity. Ultra at 70.7 FPS is playable but leaves little headroom for frame drops in intense scenes. For competitive play, Medium provides the best balance of speed and responsiveness.

At 4K, High settings are the recommended maximum. The 74.4 FPS average at 4K High is above 60 FPS and represents the best visual experience that maintains playability. Medium at 87 FPS is another option if you prefer higher frame rates over visual detail. Avoid 4K Ultra, as the 48.1 FPS average will result in a stuttery experience. Low settings at 4K (110.2 FPS) are viable for maximum smoothness, but the graphical compromises are severe for a horror game where atmosphere matters.

The data indicates that this combo is best suited for 1080p and 1440p gaming, with 4K as a secondary consideration. For the best overall experience, target 1440p High for a balance of visual fidelity and frame rate, or 1080p Ultra if you prioritize consistent high frame rates.