Doom

The AMD Ryzen 5 8400F paired with the AMD Radeon RX 570 produces a clear performance hierarchy across resolutions in Doom. The data indicates a system where the GPU is the primary constraint, with the CPU providing ample headroom. This analysis breaks down the measured frame rates, component roles, and actionable settings based solely on the provided benchmark results.

Resolution Scaling

The measured FPS data reveals a steep performance drop as resolution increases, which is typical for a system where the graphics card is the limiting factor. At 1080p with Low settings, the combo achieves an average of 92 FPS. Moving to 1440p Low drops that average to 60 FPS, a 35% reduction. At 4K Low, the average falls further to 32 FPS, representing a 65% decline from the 1080p Low figure.

This scaling pattern indicates that the RX 570's rendering throughput is exhausted quickly as pixel count rises. The gap between settings also widens at higher resolutions. At 1080p, the difference between Low and Ultra is 36 FPS (92 vs 56). At 1440p, that same spread narrows to 24 FPS (60 vs 36). At 4K, the spread compresses to just 13 FPS (32 vs 19). This compression suggests that at 4K, even the lowest settings cannot relieve the GPU bottleneck enough to maintain playable rates, as the frame rate is already below 30 FPS across all presets.

The data shows that the most significant scaling hit occurs between 1440p and 4K. At Medium settings, the average FPS drops from 52 at 1440p to 28 at 4K, a 46% decline. In contrast, the drop from 1080p Medium to 1440p Medium is 35% (80 to 52 FPS). This non-linear scaling points to the memory bandwidth and fill rate limits of the RX 570, which has a 256-bit bus and 224.0 GB/s bandwidth. At 4K, the demand for pixel throughput and texture data outpaces what the GPU can deliver, making the experience consistently sub-30 FPS regardless of quality settings.

FAQ

Q: What is the best resolution to use for a smooth 60 FPS experience?

A: The only measured configuration that hits 60 FPS or above is at 1920x1080. At 1080p, Low averages 92 FPS, Medium averages 80 FPS, and High averages 68 FPS. At 2560x1440, only the Low preset reaches 60 FPS exactly, while all other settings at that resolution fall below the 60 FPS mark.

Q: How does the Ultra preset compare to High in terms of average frame rate?

A: At every resolution, Ultra is significantly slower than High. At 1080p, Ultra averages 56 FPS compared to High’s 68 FPS, a 12 FPS difference. At 1440p, Ultra averages 36 FPS versus High’s 44 FPS. At 4K, Ultra averages 19 FPS while High manages 24 FPS.

Q: Is the system capable of 4K gaming in Doom?

A: Based on the measured data, 4K is not viable for a smooth experience. The highest average FPS at 3840x2160 is 32 on Low settings. The Medium preset at 4K shows a minimum FPS of 24 and a maximum of 32, with an average of 28. The Ultra preset drops to an average of 19 FPS.

Q: What is the frame time consistency like at 1440p Medium?

A: The 1440p Medium configuration shows an average FPS of 52, with a recorded minimum of 44 FPS and a maximum of 60 FPS. This indicates a variance of 16 FPS between the lowest and highest frames, suggesting some instability but generally staying within a playable range for a 60 Hz display.

Q: How does the combo rank among all tested systems in Doom?

A: The combination of the Ryzen 5 8400F and RX 570 ranks 3547 out of 3712 tested combos for this game. This places it in the lower percentile of systems, aligning with the observed frame rates that struggle to maintain high refresh rates at higher resolutions.

Q: Does the CPU hold back the GPU in this game?

A: The data suggests the CPU is not the primary bottleneck. The Ryzen 5 8400F has 6 cores and 12 threads, and its benchmark scores, such as a Cinebench R23 multicore score of 20851, are robust. The FPS scaling with resolution changes indicates that the GPU is the limiting component, as frame rates drop consistently with increased pixel workload.

Settings Recommendations

For a target of 60 FPS, the 1920x1080 resolution is the only viable option. The data shows that the High preset at 1080p delivers an average of 68 FPS, which provides a comfortable margin above the 60 FPS target. The Low preset at 1080p reaches 92 FPS, which is suitable for high refresh rate displays, but it comes with visual compromises. The Medium preset at 1080p averages 80 FPS, offering a balance between visual quality and speed.

At 2560x1440, users must accept a lower quality setting to maintain playability. The Low preset averages exactly 60 FPS, making it the only 1440p option that hits the standard target. The Medium preset at 1440p averages 52 FPS, which may be acceptable for those prioritizing visual fidelity over a locked 60 FPS, but the minimum recorded FPS of 44 indicates potential dips. The High preset at 1440p averages 44 FPS, and the Ultra preset drops to 36 FPS, both of which are below the ideal threshold for fast-paced FPS gameplay.

For 4K, no setting provides a playable experience. The best average is 32 FPS on Low, which is below the 30 FPS minimum for many titles. The Medium preset at 4K shows an average of 28 FPS with a minimum of 24 FPS, confirming that the hardware cannot sustain a consistent frame rate at this resolution. The recommendation is to avoid 4K entirely and use 1080p with High or Medium settings for the best balance of performance and visual quality, as the 1080p High preset’s 68 FPS average is the highest quality setting that remains above 60 FPS.

How This Combo Ranks

The combo of the AMD Ryzen 5 8400F and AMD Radeon RX 570 ranks 3547 out of 3712 tested combinations in Doom. This places it near the bottom of the database, with only 165 combos performing worse. The ranking reflects the GPU’s age and position in the market; the RX 570 is an end-of-life product with a 4 GB GDDR5 memory buffer. The data suggests that this configuration is suited for 1080p gaming at medium-to-high settings, but it is outclassed by a large majority of other tested systems for this specific title.

The GPU’s percentile rank among all GPUs is 74, which seems high, but its average benchmark score of 28766 is comparable to the AMD Radeon RX 470, which has a delta of -0.8% from the RX 570’s score. This indicates that while the GPU is not the absolute worst, its performance in Doom is limited by architectural constraints. The CPU, in contrast, has a percentile rank of 77 among all CPUs, with an average score of 25005, placing it just 0.2% above the AMD Ryzen 5 7500F in general benchmarks. The mismatch between the CPU’s relatively strong standing and the combo’s low game rank confirms that the GPU is the limiting factor in this pairing.

GPU Role

The AMD Radeon RX 570 is the decisive component in this system’s Doom performance. Its 4 GB of GDDR5 memory on a 256-bit bus yields 224.0 GB/s of bandwidth, which is insufficient for high-resolution textures and heavy pixel workloads. The GPU’s base clock is 1168 MHz with a boost clock of 1244 MHz, and it has 2048 shading units and 32 ROPs. These specifications translate to a pixel rate of 39.81 GPixel/s and a texture rate of 159.2 GTexel/s.

The measured FPS data directly reflects these hardware limits. At 4K, even the Low preset cannot escape the GPU’s fill rate constraints, averaging only 32 FPS. The Ultra preset at 4K drops to 19 FPS, showing that the GPU is overwhelmed by the rendering demands. The FP32 performance of 5.095 TFLOPS is modest by modern standards, and the GPU uses the GCN 4.0 architecture, which lacks the dedicated ray tracing or tensor cores found in newer designs. The GPU’s average benchmark score of 28766 is nearly identical to the RX 470 at -0.8% delta, confirming that this is an entry-level performer.

The memory bandwidth appears to be a critical bottleneck. The 256-bit bus and 224.0 GB/s bandwidth are the same as the RX 470, and the nearest rival data shows a delta of only 0.7% against the AMD Radeon R9 M295X. This suggests that the GPU’s memory subsystem is saturated at higher resolutions. The 4K Medium results show a minimum FPS of 24 and a maximum of 32, indicating that frame times are inconsistent when the memory buffer is stressed. For this game, the RX 570’s role is to provide playable frame rates at 1080p, where its 4 GB buffer and bandwidth are adequate, but it is clearly the element that prevents higher resolutions from being viable.

Measured FPS Breakdown

At 1920x1080, the benchmark results show a clear progression with settings. The Low preset averages 92 FPS. The Medium preset averages 80 FPS, with a recorded minimum of 68 FPS and a maximum of 93 FPS. The High preset averages 68 FPS. The Ultra preset averages 56 FPS. This indicates that at 1080p, the system has enough headroom to run High settings comfortably above 60 FPS.

At 2560x1440, the average frame rates drop across all presets. The Low preset averages 60 FPS. The Medium preset averages 52 FPS, with a minimum of 44 FPS and a maximum of 60 FPS. The High preset averages 44 FPS. The Ultra preset averages 36 FPS. The 1440p results show that the Low preset is the only one that maintains a 60 FPS average, and the Medium preset’s minimum of 44 FPS suggests occasional stutters.

At 3840x2160, the system struggles to maintain playable frame rates. The Low preset averages 32 FPS. The Medium preset averages 28 FPS, with a minimum of 24 FPS and a maximum of 32 FPS. The High preset averages 24 FPS. The Ultra preset averages 19 FPS. The 4K data confirms that the GPU is the limiting factor, as even the lowest settings cannot push the average above 32 FPS, and the Ultra preset delivers a nearly unplayable 19 FPS.

CPU Role

The AMD Ryzen 5 8400F provides the processing foundation for this system, but the data indicates it is not the performance limiter in Doom. The CPU has 6 cores and 12 threads, with a base clock of 4.20 GHz and a boost clock of 4.70 GHz. It is built on the Zen 4 architecture and has a 16 MB shared L3 cache. Its benchmark scores are strong, including a Cinebench R23 multicore score of 20851 and a single-core score of 2943.

The CPU’s percentile rank is 77 among all CPUs, and its average benchmark score of 25005 is nearly identical to the AMD Ryzen 5 7500F, which has a delta of 0.2%. The nearest rival data shows a spread of only 0.8% between the top and bottom performers in its class, indicating that the 8400F is well within the expected performance envelope for its generation. The high single-thread score of 951 in 3DMark single-thread is relevant for game physics and logic.

In the context of Doom’s measured FPS, the CPU’s capability is evidenced by the fact that frame rates scale directly with resolution and settings, which are GPU-bound tasks. The CPU is not the cause of the low 4K frame rates. Instead, the 6-core, 12-thread configuration is more than sufficient to feed the GPU at 1080p, where the system achieves 92 FPS on Low settings. The CPU’s DDR5 memory support and 83.2 GB/s memory bandwidth also help ensure that data can be fed to the GPU without creating a bottleneck. The data shows that the CPU’s role is to provide a stable platform, while the GPU dictates the overall gaming experience.