Doom

The AMD Ryzen 5 8400F and NVIDIA GeForce RTX 3070 Ti combination delivers a remarkably fluid experience in Doom, with the data showing this pairing ranks in the 60th percentile of all tested combos (678th out of 1681). The benchmark results reveal a system that is heavily GPU-bound at higher resolutions, but capable of extraordinary frame rates at 1080p that will satisfy even the most demanding competitive players.

Resolution Scaling

The measured FPS data shows a clear and predictable scaling pattern as resolution increases. At 1080p with Ultra settings, the system produces 164.2 FPS average, which drops to 103.3 FPS at 1440p and further to 55.2 FPS at 4K. This represents a 36.9% performance loss when moving from 1080p to 1440p, and a 46.5% loss from 1440p to 4K. The scaling is consistent across all settings presets, indicating that the RTX 3070 Ti's 8 GB GDDR6X memory and 256-bit bus are the primary limiting factors at higher resolutions.

The gap between Low and Ultra settings widens as resolution increases. At 1080p, the difference between Low (269.7 FPS) and Ultra (164.2 FPS) is 105.5 FPS. At 4K, that same gap shrinks to 41 FPS (96.2 FPS on Low versus 55.2 FPS on Ultra). This pattern suggests that at 4K, the GPU's compute throughput becomes the bottleneck regardless of settings, while at 1080p, the CPU's ability to feed frames becomes more relevant. The Ryzen 5 8400F's 6 cores and 12 threads with a boost clock of 4.70 GHz appear sufficient to avoid becoming a limiting factor at 1080p, as evidenced by the massive frame rates achieved.

CPU Role

The Ryzen 5 8400F is a 6-core, 12-thread processor based on Zen 4 architecture, built on TSMC's 4 nm process. Its benchmark results show strong single-thread performance with a 3dmark single-thread score of 951 and a Cinebench R23 single-core score of 2943. These numbers are critical for Doom, which relies heavily on single-thread performance for game logic and physics. The processor's 16 MB of shared L3 cache and 1 MB per-core L2 cache provide low-latency access to frequently used data.

The CPU's multi-threaded capabilities are also respectable, with a Cinebench R23 multicore score of 20851 and a Passmark multithread score of 24530. Compared to its nearest rivals, the 8400F sits virtually identical to the AMD Ryzen 7 2700X (0% delta) and the AMD Ryzen 5 7500F (0.3% delta). This places the CPU in the 82nd percentile of all CPUs, indicating it has ample headroom for this game. The data shows that at 1080p, the CPU can push frame rates to 269.7 FPS on Low settings, which suggests the processor is not the primary constraint in this configuration. The 4.20 GHz base clock and 4.70 GHz boost clock provide the frequency headroom needed for Doom's engine, which favors high clock speeds over core counts.

GPU Role

The RTX 3070 Ti is built on the Ampere architecture with 6144 shading units and 48 RT cores. Its 8 GB of GDDR6X memory on a 256-bit bus delivers 608.3 GB/s of bandwidth, which proves adequate for 1440p but becomes strained at 4K. The GPU's boost clock of 1770 MHz and FP32 performance of 21.75 TFLOPS are the key drivers of the measured frame rates. The Passmark G3D score of 23356 places this GPU in the 74th percentile of all GPUs, with its nearest rival being the AMD Radeon RX 6700 at a -0.8% delta.

The GPU's memory bandwidth is the critical factor in Doom's resolution scaling. At 4K Ultra, the GPU produces 55.2 FPS, which while playable, is noticeably below the 60 FPS threshold many players target. However, dropping to High settings at 4K recovers performance to 69.8 FPS, indicating that the memory subsystem can handle the load when texture detail is reduced. The 192 TMUs and 96 ROPs provide solid texture and pixel throughput, as evidenced by the GPU's texture rate of 339.8 GTexel/s and pixel rate of 169.9 GPixel/s. These specifications explain why the GPU maintains strong performance at 1440p, where it achieves 127.4 FPS on High settings.

FAQ

Q: Can this system run Doom at 4K smoothly?

A: Yes, but with caveats. At 4K High settings, the system averages 69.8 FPS, which is smooth. At 4K Ultra, it drops to 55.2 FPS, which is below the 60 FPS threshold. The data suggests that High settings at 4K provide the best balance.

Q: What is the maximum frame rate this configuration can achieve?

A: The highest measured average is 269.7 FPS at 1080p with Low settings. This indicates the system can exceed 240 FPS for competitive play, though most players would prefer higher settings for visual quality.

Q: How does the CPU compare to its direct rivals?

A: The Ryzen 5 8400F is statistically identical to the AMD Ryzen 7 2700X with a 0% delta in average benchmark score. It is also within 0.3% of the AMD Ryzen 5 7500F, making these processors effectively interchangeable for gaming performance.

Q: Is the RTX 3070 Ti's 8 GB VRAM sufficient for Doom?

A: The data suggests yes for 1440p and below. At 4K, the performance drop from High to Ultra settings (69.8 to 55.2 FPS) may be partially attributed to VRAM pressure, but the card still delivers playable frame rates at 4K High.

Q: What resolution provides the best experience?

A: 1440p with High settings offers 127.4 FPS average, which exceeds the refresh rate of most high-refresh monitors while maintaining visual quality. This appears to be the sweet spot for this configuration.

Q: How does this GPU rank among all GPUs?

A: The RTX 3070 Ti sits in the 74th percentile of all GPUs with an average benchmark score of 30849. Its nearest rival, the AMD Radeon RX 6700, is only 0.8% behind, indicating tight competition in this performance tier.

Measured FPS Breakdown

At 1920x1080, the system demonstrates exceptional performance across all presets. Low settings produce 269.7 FPS, Medium delivers 238.7 FPS, High achieves 201.8 FPS, and Ultra maintains 164.2 FPS. These numbers indicate that even at Ultra settings with a 165Hz monitor, the system will not drop below the refresh rate in most scenarios.

Moving to 2560x1440, the frame rates remain highly playable. Low settings yield 175.8 FPS, Medium produces 153.1 FPS, High delivers 127.4 FPS, and Ultra drops to 103.3 FPS. The scaling from 1080p to 1440p shows a consistent reduction of approximately 40% across all settings, which aligns with the increased pixel count of 1.78x.

At 3840x2160, the GPU begins to show its limitations. Low settings average 96.2 FPS, Medium drops to 82.8 FPS, High achieves 69.8 FPS, and Ultra falls to 55.2 FPS. The 4K results demonstrate that while the RTX 3070 Ti can handle 4K, players will need to make compromises on settings to maintain high refresh rates.

Settings Recommendations

For players with a 1080p 144Hz monitor, the data supports using Ultra settings, as the 164.2 FPS average exceeds the display's refresh rate while providing the best visual quality. The performance headroom is substantial, with even the most demanding preset leaving 20 FPS of headroom above 144 FPS.

For 1440p displays with 120Hz or 144Hz refresh rates, High settings at 127.4 FPS provide the best experience. Ultra settings at 103.3 FPS are still playable and may be preferred for visual fidelity, but High offers a better margin above the refresh rate threshold. Medium settings at 153.1 FPS would be recommended for competitive players who prioritize frame rate over visual quality.

At 4K, the recommendation depends heavily on the display's refresh rate. For 60Hz displays, High settings at 69.8 FPS provide an excellent experience with minimal visual compromise. Ultra settings at 55.2 FPS are playable but may exhibit occasional stutter on displays with variable refresh rate. For 120Hz or higher 4K displays, the system cannot maintain those refresh rates at any settings, so Medium settings at 82.8 FPS offer the best balance of smoothness and visual quality. Low settings at 96.2 FPS are the only preset that approaches 100 FPS at 4K, but the visual quality loss is substantial.