Doom

FAQ

Q: How does the AMD Ryzen 5 8400F compare to its closest rivals in overall CPU performance?

A: The Ryzen 5 8400F's average benchmark score of 25064 places it essentially level with the AMD Ryzen 7 2700X (25057, 0% delta) and the AMD Ryzen AI 5 PRO 340 (25099, -0.1% delta). It is also within 0.3% of the AMD Ryzen 5 7500F (24993), indicating these four CPUs are effectively tied in aggregate compute performance.

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

A: The AMD Radeon RX 9070 XT sits in the 82nd percentile of all GPUs, meaning it outperforms roughly 82% of the graphics cards in the database. Its average benchmark score is 39647, and it trades blows with cards like the AMD Radeon Pro 575 (39703, -0.1% delta) and NVIDIA RTX A500 Mobile (39568, 0.2% delta).

Q: How much VRAM does the RX 9070 XT have, and what is its memory bandwidth?

A: The card comes equipped with 16 GB of GDDR6 memory on a 256-bit bus, yielding a memory bandwidth of 644.6 GB/s. The memory clock runs at 2518 MHz, which translates to 20.1 Gbps effective. This large frame buffer is well-suited for high-resolution textures and demanding modern titles.

Q: What are the core and thread counts of the Ryzen 5 8400F?

A: The CPU has 6 cores and 12 threads based on the Zen 4 (Phoenix) architecture. It operates with a base clock of 4.20 GHz and a boost clock of 4.70 GHz, within a 65 W TDP envelope.

Q: How does the combo perform at 4K Ultra settings in Doom?

A: At 3840x2160 with Ultra settings, the measured average FPS is 69.1. This is just above the 60 FPS threshold for smooth gameplay, but it represents the most demanding preset tested at this resolution.

Q: What is the combo's overall ranking in the database for this game?

A: For Doom, this specific CPU+GPU combination ranks 452nd out of 1681 tested combos. This places it in the upper quartile of all configurations tested for this title, indicating solid performance relative to the broader field.

Settings Recommendations

The measured data for Doom reveals a clear hierarchy of performance across the four settings presets. For the best balance of visual fidelity and frame rate, High settings at 2560x1440 provide the most compelling experience. This configuration delivers an average of 147.6 FPS, which is well above the 120 FPS mark that high-refresh-rate monitors target, while retaining a significant portion of the visual quality over Medium settings. The jump from High to Ultra at this resolution costs 26.2 FPS (from 147.6 down to 121.4), a 17.8% performance penalty for what is often a marginal visual improvement in Doom's fast-paced action.

At 1920x1080, the story is similar but with more headroom. High settings produce 231.6 FPS, which is excellent for competitive play. Ultra settings still manage 187.2 FPS, so players with 1080p 144Hz monitors could comfortably run Ultra and stay above the refresh rate cap in most scenes. However, the data shows diminishing returns: Medium delivers 271.7 FPS, which is 84.5 FPS higher than Ultra, but the visual difference between Medium and High is typically more perceptible than between High and Ultra.

For 4K gaming, High settings at 81.9 FPS is the recommended starting point. This provides a smooth experience on standard 60Hz displays with room to spare. Ultra at 4K drops to 69.1 FPS, which is still playable but leaves less margin for demanding scenes. Given the 41.8 FPS gap between High and Ultra at this resolution, the High preset is the pragmatic choice for maintaining consistent frame times. The best experience per the measured rows, considering both smoothness and visual quality, is High settings at 2560x1440, which offers a strong combination of frame rate and fidelity without pushing into the steep falloff of Ultra.

GPU Role

The AMD Radeon RX 9070 XT is the dominant factor in this combo's Doom performance. With 16 GB of GDDR6 memory and 644.6 GB/s of bandwidth, the card has ample resources to handle the game's textures and geometry at any of the tested resolutions. The 256-bit memory bus ensures that data transfers do not become a bottleneck, even at 3840x2160 where the 81.9 FPS High result shows the GPU is still pushing substantial data through the pipeline.

The GPU's clock behavior is notable: the base clock is 1660 MHz, the game clock is 2400 MHz, and the boost clock reaches 2970 MHz. The wide gap between base and boost clocks indicates that the card can aggressively scale its frequency under load. The measured frame rates reflect this headroom—scaling from 4K Ultra at 69.1 FPS to 1080p Low at 311.5 FPS demonstrates a 4.5x performance range that is characteristic of a high-end GPU operating well within its thermal limits.

In the context of this game, the RX 9070 XT's shading power (48.66 TFLOPS FP32) and 128 ROPs are the key specifications driving the high frame rates. The 4096 shading units provide the compute throughput needed for Doom's lighting and particle effects, while the 128 ROPs handle the pixel fill rate (380.2 GPixel/s) required for high-resolution rendering. The card's percentile ranking of 82 confirms it is positioned well above the median GPU, and its nearest rivals—the AMD Radeon Pro 575 and NVIDIA RTX A500 Mobile—are within a fraction of a percent in aggregate scores, though the RX 9070 XT's gaming-focused design shows its strength in the actual FPS measurements.

How This Combo Ranks

This combination of the AMD Ryzen 5 8400F and AMD Radeon RX 9070 XT ranks 452nd out of 1681 tested combos for Doom. This position, in the top 27% of all configurations, indicates that the pairing is well-balanced for this title. The rank reflects the combined effect of the CPU's compute capabilities and the GPU's rendering throughput, with the latter being the primary driver given Doom's graphical intensity.

The rank is particularly impressive when considering the CPU's modest position relative to its rivals. While the Ryzen 5 8400F is competitive with the Ryzen 7 2700X and Ryzen 5 7500F (all within 0.3% of each other), the GPU's 82nd percentile standing lifts the combo into a higher tier of overall performance. This suggests that for Doom specifically, the GPU is doing the heavy lifting, and the CPU is sufficient to feed it without creating a significant bottleneck. The 452nd rank out of 1681 combos means there are 1229 configurations that perform worse, which underscores the effectiveness of this pairing for 1440p and 4K gaming where GPU load is intense.

CPU Role

The AMD Ryzen 5 8400F provides the processing foundation for this combo. With 6 cores and 12 threads based on the Zen 4 (Phoenix) architecture, the CPU offers solid multi-threaded performance that is more than adequate for Doom's engine. The base clock of 4.20 GHz and boost clock of 4.70 GHz are respectable figures, and the 65 W TDP indicates efficient power delivery that does not compromise the GPU's thermal headroom.

The CPU's benchmark results show a balanced profile: the Cinebench R23 multicore score of 20851 and single-core score of 2943 indicate that the processor handles both multi-threaded workloads and single-threaded tasks competently. The 3DMark single-thread score of 951 and 16-thread score of 6091 further confirm this balance. These scores place the CPU in the 82nd percentile of all CPUs, matching the GPU's percentile ranking—a fortuitous alignment that suggests neither component is drastically over- or under-powered relative to the other.

In Doom, the CPU's role is to handle game logic, physics, and draw calls while the GPU renders frames. The measured FPS scaling from low to high resolutions follows the expected pattern: at 1080p, the CPU must work harder to keep up with the GPU's high frame output (311.5 FPS at Low settings), while at 4K, the GPU becomes the limiting factor. The fact that the combo still achieves 69.1 FPS at 4K Ultra indicates that the CPU is not severely bottlenecking the GPU even in the most demanding scenarios. The L3 cache of 16 MB (shared) and dual-channel DDR5 memory support with 83.2 GB/s bandwidth provide sufficient data throughput for the game's assets, preventing stalls that could reduce frame rates.

Measured FPS Breakdown

The measured FPS data spans three resolutions and four settings presets, providing a comprehensive picture of performance.

3840x2160 (4K): The Ultra preset delivers 69.1 FPS, which is the lowest result across all tests. High settings improve this to 81.9 FPS, a 12.8 FPS gain. Medium settings reach 96.9 FPS, and Low settings top out at 110.9 FPS. The progression from Ultra to Low represents a 41.8 FPS (60.5%) increase, showing that the GPU has significant headroom when graphical effects are reduced.

2560x1440 (1440p): This resolution shows the sweet spot for the combo. Ultra settings produce 121.4 FPS, which is already above 120 FPS. High settings jump to 147.6 FPS, Medium reaches 174.9 FPS, and Low hits 204.4 FPS. The delta between Ultra and Low here is 83.0 FPS, a 68.4% improvement, indicating that even at 1440p, the settings choice has a substantial impact on frame delivery.

1920x1080 (1080p): The highest frame rates are achieved here. Ultra settings manage 187.2 FPS, High reaches 231.6 FPS, Medium delivers 271.7 FPS, and Low peaks at 311.5 FPS. The gap between Ultra and Low is 124.3 FPS (66.4%), demonstrating that at this resolution, the GPU is capable of extremely high output when settings are lowered. The 311.5 FPS Low result is the single highest measured frame rate in the dataset.

Across all resolutions, the pattern is consistent: Ultra settings impose a penalty of roughly 18-20% over High, while Low settings provide a 35-40% boost over Ultra. The data confirms that this combo is capable of excellent performance at 1440p High and above, with 4K requiring a settings compromise for the smoothest experience.