Doom

# Doom: AMD Ryzen 9 9900X3D + AMD Radeon RX 5700 XT

The pairing of a 12-core, 24-thread AMD Ryzen 9 9900X3D with the 8 GB AMD Radeon RX 5700 XT creates an interesting study in bottleneck dynamics for a 2016-era title like Doom. The CPU is a modern flagship-tier processor with a 4.40 GHz base clock and 5.50 GHz boost clock, while the GPU is a RDNA 1.0 part with a 1605 MHz base and 1905 MHz boost clock. The data shows this combo ranks 2161 out of 2930 tested configurations in this game, placing it in the lower-middle portion of the field despite the CPU's strength. The measured frames per second across resolutions and settings reveal a system that is clearly GPU-limited at higher quality presets, yet the CPU's headroom becomes apparent at lower settings where frame rates climb substantially.

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

The AMD Ryzen 9 9900X3D brings 12 cores and 24 threads based on the Zen 5 architecture, built on a 4 nm process with 128 MB of L3 cache. Its 4.40 GHz base clock and 5.50 GHz boost clock position it as one of the fastest consumer processors available, and its benchmark scores reflect that positioning. In Cinebench R23, it scores 47737 multi-core and 6739 single-core; in Geekbench, it posts 22884 multi-core and 3041 single-core. The PassMark multi-thread score of 56154 and single-thread score of 4646 further confirm its capability. Its percentile rank against all CPUs is 91, meaning it outperforms 91% of processors in the database. The nearest rivals by average benchmark score include the Intel Core Ultra 5 245KF (55093, -0.6% delta), Intel Core Ultra 5 245K (54053, +1.3% delta), Intel Xeon 6505P (53701, +2% delta), and Intel Core i7-14700F (53620, +2.1% delta). The 9900X3D's average benchmark score of 54762 puts it in a tight cluster with these chips, within roughly 2% either way.

For Doom specifically, the CPU's role appears secondary to the GPU in most scenarios. The game was released in 2016 and is known for being well-optimized, so even a much weaker CPU could likely feed frames to the RX 5700 XT at most settings. However, the data reveals that at 1080p Low, the combo achieves 188 FPS average, which suggests the CPU is capable of driving very high frame rates when the GPU load is lightened. The 3DMark scores help contextualize this: 3dmark_2_threads scores 2512, 3dmark_4_threads scores 4885, 3dmark_8_threads scores 9002, and 3dmark_max_threads scores 13795. The single-thread score of 1269 and 16-thread score of 12490 indicate strong per-core performance that benefits games relying on a few heavily loaded threads. The PassMark physics score of 5340 and data compression score of 685074 show robust computational throughput that would handle game logic and physics calculations without becoming a limiting factor.

The 128 MB L3 cache is particularly noteworthy for gaming workloads, as it can hold substantial portions of game data close to the cores. This large cache likely helps maintain consistent frame pacing, though the measured FPS data does not include frame time variance metrics. The CPU's memory bandwidth of 89.6 GB/s over dual-channel DDR5, combined with PCIe Gen 5 support across 24 lanes, ensures the GPU has ample data transfer capacity. In practical terms for Doom, the CPU's 12 cores and 24 threads are far more than the game requires; the title from 2016 typically uses fewer than 8 threads effectively. This means the CPU is likely idling during most gameplay, with the GPU determining the actual frame rate.

GPU Role — VRAM, clocks, and how they relate to this game's results

The AMD Radeon RX 5700 XT is built on the Navi 10 chip with RDNA 1.0 architecture, manufactured on a 7 nm process at TSMC. It features 8 GB of GDDR6 memory on a 256-bit bus, delivering 448.0 GB/s of bandwidth. The GPU clock speeds are 1605 MHz base, 1755 MHz game clock, and 1905 MHz boost, with memory running at 1750 MHz (14 Gbps effective). It has 2560 shading units, 160 texture mapping units, and 64 render output units, producing a pixel rate of 121.9 GPixel/s and texture rate of 304.8 GTexel/s. The FP32 performance is 9.754 TFLOPS, with FP16 at 19.51 TFLOPS (2:1 ratio). The GPU's percentile rank against all GPUs is 59, placing it in the upper-mid range of the database. Its average benchmark score of 16361 puts it within 1% of its nearest rivals: AMD Radeon Pro 5600M (16351, +0.1% delta), NVIDIA RTX PRO 6000 Blackwell (16408, -0.3% delta), AMD Radeon PRO W7500 (16415, -0.3% delta), and NVIDIA GeForce RTX 5090 D V2 (16504, -0.9% delta). The GPU's PassMark G3D score of 16277 and Geekbench Vulkan score of 68310 indicate solid DirectX and Vulkan performance, which matters for Doom since it uses the Vulkan API.

For Doom, the GPU is clearly the primary performance limiter in this combination. At 1080p Ultra, the combo achieves 113 FPS; at 1440p Ultra, it drops to 73 FPS; at 4K Ultra, it falls to 40 FPS. This scaling pattern shows the GPU struggling as resolution increases, which is expected given the RX 5700 XT's 2019-era performance level. The 8 GB VRAM capacity is sufficient for Doom even at 4K, as the game's texture requirements are modest by modern standards. However, the GPU's raw compute power limits the maximum frame rates achievable. The 3DMark Steel Nomad DX12 score of 2134 provides a modern benchmark reference point, while the PassMark DirectX 12 score of 64 and DirectX 11 score of 116 show the GPU's API-specific performance characteristics. The Geekbench Metal score of 74647 and OpenCL score of 9524 indicate that compute workloads are handled reasonably well, though these are not directly relevant to Doom's rendering pipeline.

The GPU's 272 mm length and dual-slot design make it a standard-sized card, and its 225 W TDP with 1x 6-pin + 1x 8-pin power connectors and 550 W suggested PSU mean it requires a moderately capable power supply. Its end-of-life production status and 2019 release date place it as an older mid-range part that has been superseded, but its performance in this benchmark shows it can still deliver playable frame rates in Doom at most settings. The GPU's 59th percentile ranking means it sits above average but well below high-end cards, which aligns with its measured performance in this title.

How This Combo Ranks — use comboRankInGame vs other tested combos

The combination of AMD Ryzen 9 9900X3D and AMD Radeon RX 5700 XT ranks 2161 out of 2930 tested combos in Doom, placing it in the 26th percentile of all configurations tested. This ranking is notably lower than what the CPU's 91st percentile would suggest, and it is also lower than the GPU's 59th percentile. The discrepancy between component rankings and combo ranking indicates that the pairing is not optimal for this particular game — the CPU is significantly more powerful than what the GPU can utilize, creating an imbalance where the GPU becomes the limiting factor.

The rank of 2161 means that roughly 769 combinations performed worse, while approximately 2160 performed better. Given that the CPU is a top-tier processor and the GPU is a mid-range part, the ranking reflects the GPU's performance ceiling rather than any CPU deficiency. The data shows that at 4K Ultra, the combo only manages 40 FPS, which is a demanding scenario for the GPU. At 1080p Low, the combo reaches 188 FPS, showing that when the GPU load is reduced, the system can deliver high frame rates. The combo's ranking would likely improve significantly with a more powerful GPU, as the CPU has substantial headroom to support higher frame rates.

The nearest rival CPUs to the 9900X3D have average benchmark scores within 2% of each other, meaning the CPU choice among these top processors would make minimal difference in Doom's performance. The GPU's nearest rivals are similarly clustered, all within 1% of each other. This tight clustering suggests that the combo's ranking is primarily determined by the GPU tier rather than specific component selections within that tier. The rank of 2161 out of 2930 places this combo in the lower half of tested configurations, which is consistent with the GPU's mid-range positioning. For a 2016 game like Doom, this ranking indicates that the GPU is the weak link, and upgrading to a higher-tier GPU would be the most effective way to improve the combo's standing.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

At 1920x1080, the combo delivers strong frame rates across all settings. Low settings produce an average of 188 FPS, Medium produces 164 FPS with a minimum of 139 and maximum of 188, High produces 138 FPS, and Ultra produces 113 FPS. The progression from Low to Ultra shows a 75 FPS drop, which is a 39.9% reduction in performance. The Medium settings' minimum FPS of 139 is notably close to the High average of 138, suggesting that Medium provides more consistent frame delivery relative to its average. The maximum FPS of 188 at Medium matches the Low average exactly, indicating that the Medium preset can occasionally hit the same peaks as Low.

At 2560x1440, frame rates decrease substantially. Low settings average 121 FPS, Medium averages 106 FPS with a minimum of 90 and maximum of 122, High averages 89 FPS, and Ultra averages 73 FPS. The drop from 1080p to 1440p at each settings level is consistent: Low drops from 188 to 121 (a 35.6% reduction), Medium drops from 164 to 106 (a 35.4% reduction), High drops from 138 to 89 (a 35.5% reduction), and Ultra drops from 113 to 73 (a 35.4% reduction). This uniform scaling across settings suggests that the GPU is the primary limiter, as the percentage reduction is nearly identical regardless of quality preset.

At 3840x2160, frame rates fall to more demanding levels. Low settings average 66 FPS, Medium averages 57 FPS with a minimum of 49 and maximum of 66, High averages 48 FPS, and Ultra averages 40 FPS. The transition from 1440p to 4K shows further uniform scaling: Low drops from 121 to 66 (a 45.5% reduction), Medium drops from 106 to 57 (a 46.2% reduction), High drops from 89 to 48 (a 46.1% reduction), and Ultra drops from 73 to 40 (a 45.2% reduction). The larger percentage drop from 1440p to 4K compared to 1080p to 1440p reflects the GPU's increasing struggle at higher pixel counts. The Medium settings minimum FPS of 49 at 4K is particularly notable, as it falls below the 60 FPS threshold that many consider the minimum for smooth gameplay.

FAQ

Q: Does the AMD Ryzen 9 9900X3D bottleneck the RX 5700 XT in Doom?

A: No, the data indicates the opposite. The CPU's 91st percentile ranking and high benchmark scores (Cinebench R23 multi-core 47737, single-core 6739) far exceed what Doom requires. The GPU's 59th percentile ranking aligns with the combo's modest performance, showing the GPU is the limiting component.

Q: What is the best resolution for this combo to achieve 60+ FPS in Doom?

A: At 1440p, all settings except Ultra achieve 60+ FPS (Low 121, Medium 106, High 89, Ultra 73). At 4K, only Low settings (66 FPS) and Medium settings (57 FPS) come close to or exceed 60 FPS. At 1080p, all settings exceed 100 FPS.

Q: How does the combo's ranking compare to its component rankings?

A: The CPU ranks in the 91st percentile of all CPUs, and the GPU ranks in the 59th percentile of all GPUs, but the combo ranks 2161 out of 2930 (approximately the 26th percentile) in Doom. This gap shows the GPU limits the system's overall performance.

Q: What is the performance difference between Low and Ultra settings at each resolution?

A: At 1080p, the difference is 75 FPS (188 Low vs 113 Ultra). At 1440p, the difference is 48 FPS (121 Low vs 73 Ultra). At 4K, the difference is 26 FPS (66 Low vs 40 Ultra). The absolute gap narrows at higher resolutions.

Q: Is the RX 5700 XT's 8 GB VRAM sufficient for Doom at 4K?

A: Yes, the measured FPS data shows the game runs at 4K with all settings, achieving 40-66 FPS depending on quality preset. Doom's 2016-era texture requirements are within the 8 GB capacity, though the GPU's compute power rather than VRAM limits performance.

Q: How does the CPU's single-thread performance relate to Doom's frame rates?

A: The CPU's 3dmark_single_thread score of 1269 and PassMark single-thread score of 4646 indicate strong per-core performance. Since Doom is well-optimized and not heavily multithreaded, this single-thread strength ensures the CPU does not become a bottleneck even at 1080p Low where the combo reaches 188 FPS.

Settings Recommendations

Based on the measured FPS data, the Medium preset offers the best balance of visual quality and performance across all resolutions. At 1080p, Medium delivers 164 FPS average with a minimum of 139 FPS, which is well above the 144 Hz refresh rate that many gaming monitors support. The 1440p Medium setting provides 106 FPS average with a 90 FPS minimum, which is smooth for most displays and maintains a substantial quality improvement over Low. At 4K, Medium achieves 57 FPS average with a 49 FPS minimum; while this dips below 60 FPS, it remains playable and represents the highest quality preset that maintains reasonable frame rates at this resolution.

The High preset at 1440p (89 FPS) is also viable for users who prioritize visual fidelity, as it remains above 60 FPS. However, the Ultra preset at 1440p (73 FPS) and High at 4K (48 FPS) begin to approach or fall below the 60 FPS threshold, making them less desirable for fast-paced FPS gameplay. The Low preset, while offering the highest frame rates (188 FPS at 1080p, 121 FPS at 1440p, 66 FPS at 4K), sacrifices too much visual quality for the marginal benefit over Medium in most cases. For competitive play where maximum frame rate matters, Low at 1080p is the clear choice, but for general gaming, Medium provides the best experience per the measured rows.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The FPS scaling from 1080p to 4K reveals a consistent pattern across all settings that points to the GPU as the limiting component. From 1080p to 1440p, frame rates drop by approximately 35% regardless of quality preset: Low drops from 188 to 121, Medium from 164 to 106, High from 138 to 89, and Ultra from 113 to 73. This uniform reduction suggests that the performance cost of increasing resolution is proportional to the pixel count increase, which is a classic GPU-limited behavior. The pixel count increases from approximately 2.07 million (1080p) to 3.69 million (1440p), a 78% increase, yet the FPS drops by only 35%, indicating that the GPU is not purely pixel-bound but also benefits from other factors like reduced CPU overhead at higher resolutions.

From 1440p to 4K, the FPS drops by approximately 45-46% across all settings. The 4K resolution has 8.29 million pixels, which is 2.25 times the pixel count of 1440p. The FPS reduction of roughly 45% is less than the pixel count increase, which suggests that the GPU has some headroom in other aspects of its pipeline. The increasing percentage drop from 1080p-to-1440p (35%) to 1440p-to-4K (46%) indicates that the GPU's performance degrades more steeply at higher resolutions, which is consistent with memory bandwidth constraints. The RX 5700 XT's 448.0 GB/s bandwidth becomes a more significant factor as resolution increases, since the GPU must access more texture data for each frame.

The fact that the scaling pattern is nearly identical across Low, Medium, High, and Ultra settings at each resolution transition is telling. If the CPU were the limiting factor, we would expect to see smaller FPS drops at lower settings (where CPU overhead is more significant relative to GPU work) and larger drops at higher settings. Instead, the uniform scaling indicates that the GPU is consistently the bottleneck across all quality presets. This is further supported by the CPU's high benchmark scores and 91st percentile ranking, which show it has far more capability than Doom requires. The 4K Low setting achieving 66 FPS while 4K Ultra achieves only 40 FPS demonstrates that even at the lowest quality preset, the GPU cannot push frame rates much higher due to the sheer pixel count, confirming its role as the performance limiter in this combination.