Doom

The AMD Ryzen 9 5950X paired with the AMD Radeon RX 7900 XT delivers an exceptionally strong showing in Doom, with measured frame rates that scale predictably across resolutions and settings. The data indicates a configuration that is heavily GPU-bound at higher resolutions, while the processor’s substantial thread count ensures that even at 1080p, the system avoids becoming a bottleneck. The combination ranks 361st out of 1681 tested configurations for this title, placing it in the top 21.5% of all hardware pairings—a solid result for a desktop setup built around a 16-core CPU and a high-end RDNA 3 graphics card.

Resolution Scaling

The measured average FPS across the three tested resolutions reveals a clear and consistent pattern of performance degradation as pixel count increases. At 1080p with High settings, the system produces 247.7 FPS. Moving to 1440p drops this to 162.6 FPS, a reduction of 34.4% from the 1080p figure. Stepping up to 4K (3840x2160) further reduces the average to 84.6 FPS, which is 65.8% lower than the 1080p result. This steep decline is characteristic of a GPU-bound workload where the rendering load scales almost linearly with the number of pixels.

The scaling behavior becomes even more pronounced when examining the lowest and highest presets. With Low settings, the frame rate falls from 338.1 FPS at 1080p to 216.8 FPS at 1440p (a 35.9% drop) and then to 120.5 FPS at 4K (a 64.4% drop from 1080p). For Ultra settings, the pattern is similar: 201 FPS at 1080p, 132.8 FPS at 1440p (down 33.9%), and 71.2 FPS at 4K (down 64.6%). The consistency of these percentage drops—hovering around 34% for the 1080p-to-1440p step and 65% for the 1080p-to-4K step—strongly suggests that the limiting component is the GPU’s fill rate and memory bandwidth, not the CPU.

Notably, the delta between 1440p and 4K is larger in absolute terms than the delta between 1080p and 1440p for every preset. For instance, on High settings, the system loses 85.1 FPS going from 1080p to 1440p, but loses another 78 FPS going from 1440p to 4K. This indicates that the RX 7900 XT’s 800.0 GB/s memory bandwidth and 459.6 GPixel/s pixel rate are being taxed heavily at 4K, with the gap between 1440p and 4K representing a more significant relative load increase. The 4K results, ranging from 71.2 FPS on Ultra to 120.5 FPS on Low, show that the card remains playable at all presets, but the headroom above 60 FPS narrows considerably when pushing maximum detail.

GPU Role

The AMD Radeon RX 7900 XT is the primary driver of performance in this configuration, as evidenced by the resolution scaling data. The card’s 20 GB of GDDR6 memory on a 320-bit bus provides 800.0 GB/s of bandwidth, which appears sufficient for Doom’s texture streaming at 4K, given that even the heaviest preset (Ultra) maintains an average above 70 FPS. The GPU’s boost clock of 2394 MHz and game clock of 2025 MHz are typical for the RDNA 3 architecture, and the measured scores support a strong compute foundation: the card achieves 51.48 TFLOPS FP32 performance and a Passmark G3D score of 29009, placing it in the 82nd percentile among all GPUs.

The GPU’s role becomes most apparent when comparing its benchmark scores to the measured FPS. The 3DMark Steel Nomad DX12 score of 5623 and the Geekbench Vulkan score of 160119 indicate solid DirectX 12 and Vulkan performance, which aligns with Doom’s OpenGL 4.6 API support. The card’s nearest rivals in the aggregate benchmark list include the NVIDIA GeForce RTX 5080 Mobile (deltaPct 0.0) and the NVIDIA GeForce RTX 4080 Mobile (deltaPct 0.6), showing that the RX 7900 XT is roughly on par with those mobile parts in synthetic tests. However, in this specific game, the 4K Ultra result of 71.2 FPS suggests that the GPU is being utilized to its full potential, as the frame rate scales inversely with settings load in a manner that would not occur if the CPU were the limiting factor.

At 1080p Low, the 338.1 FPS result is likely close to the maximum renderable output for this combination, given that the CPU’s single-thread performance (a Passmark single-thread score of 3470) is adequate but not extraordinary for extremely high frame rates. The GPU’s pixel rate of 459.6 GPixel/s and texture rate of 804.4 GTexel/s are the key specifications that allow it to maintain 4K performance, and the data shows no signs of VRAM capacity issues—20 GB is more than ample for Doom’s 2016-era engine, even at 4K Ultra.

Settings Recommendations

Based on the measured frame rates, the optimal balance between visual quality and performance depends heavily on the target resolution. At 1080p, the High preset delivers 247.7 FPS, which is already far beyond the refresh rate of most monitors. Ultra at 1080p produces 201 FPS, a 18.8% reduction from High, but still well above 144 Hz. For competitive play, Low settings at 1080p yield 338.1 FPS, offering the maximum responsiveness, though the visual trade-off may not be necessary given the High preset’s headroom.

At 1440p, the High preset hits 162.6 FPS, which is ideal for high-refresh-rate displays (144 Hz or 165 Hz). Medium provides 192.2 FPS, a 18.2% improvement over High, while Ultra drops to 132.8 FPS—still playable but below the 144 Hz threshold. The data suggests that Medium or High at 1440p is the sweet spot, as Ultra’s 18.3% penalty relative to High may not be worth the marginal visual gains in a fast-paced FPS. Low at 1440p reaches 216.8 FPS, but the reduced detail level is unlikely to be preferred when High remains above 160 FPS.

At 4K, the choice is more constrained. High settings produce 84.6 FPS, which is comfortably above 60 FPS and suitable for most displays. Medium improves to 105.8 FPS, a 25.1% gain over High, making it the recommended preset for 4K gaming if the user prioritizes smoothness over maximum fidelity. Ultra at 4K falls to 71.2 FPS, which is still above 60 FPS but leaves little headroom for demanding scenes. Low at 4K (120.5 FPS) is an option for those seeking high refresh rates at 4K, but the visual compromise is substantial. For a balanced experience, the data points to High at 4K as the default choice, with Medium as a viable alternative for those who want extra margin.

FAQ

Q: What is the best resolution for this CPU-GPU combo in Doom?

A: The measured data shows that 1440p High provides 162.6 FPS, which offers the best combination of high detail and frame rate. At 4K, the system still delivers 84.6 FPS on High, but 1440p maximizes the refresh rate potential without sacrificing visual quality.

Q: How much performance is lost when moving from 1080p to 4K on High settings?

A: The average FPS drops from 247.7 at 1080p to 84.6 at 4K, a reduction of 65.8%. This indicates that the RX 7900 XT is the primary bottleneck at higher resolutions.

Q: Is the Ryzen 9 5950X holding back the RX 7900 XT in this game?

A: No, the scaling pattern across resolutions and settings suggests the GPU is the limiting factor. The CPU’s 16 cores and 32 threads provide ample headroom, as evidenced by the 1080p Low result of 338.1 FPS, which is still not the absolute ceiling.

Q: Can the system maintain 60 FPS at 4K with maximum settings?

A: Yes, the Ultra preset at 4K produces an average of 71.2 FPS, which is above the 60 FPS threshold. The minimum FPS is not recorded, but the average suggests consistent playability.

Q: How does this combo compare to other hardware in the benchmark database?

A: This configuration ranks 361st out of 1681 tested combos for Doom, placing it in the top 21.5% of all pairings. The GPU’s aggregate score is 0.0% different from the NVIDIA GeForce RTX 5080 Mobile and 0.6% higher than the NVIDIA GeForce RTX 4080 Mobile.

Q: What is the impact of lowering settings from Ultra to Low at 1080p?

A: The frame rate increases from 201 FPS on Ultra to 338.1 FPS on Low, a 68.2% improvement. However, the High preset at 247.7 FPS offers a more balanced trade-off for most users.

CPU Role

The AMD Ryzen 9 5950X provides the computational foundation for this configuration, and its specifications are more than sufficient for Doom’s engine. With 16 cores and 32 threads based on the Zen 3 architecture, the CPU has a base clock of 3.40 GHz and a boost clock of 4.90 GHz. The processor’s 64 MB of L3 cache and dual-channel DDR4 memory support (51.2 GB/s bandwidth) ensure that data feeding the GPU is never a bottleneck. In synthetic benchmarks, the 5950X achieves a Cinebench R23 multicore score of 38607 and a single-core score of 5450, placing it in the 93rd percentile among all CPUs.

The CPU’s role in Doom is primarily to maintain high frame rates when the GPU is not fully saturated. At 1080p Low, the system reaches 338.1 FPS, which is a demanding scenario for the CPU’s single-thread performance. The Passmark single-thread score of 3470 and the 3DMark single-thread score of 944 indicate that the processor can handle the game’s draw call submission and physics calculations at these rates. However, the data shows that the CPU’s multi-threading capabilities are not fully utilized in this title, as the 3DMark 16-thread score of 10810 is more relevant for productivity workloads.

Comparing the 5950X to its nearest rivals in the aggregate benchmark list reveals that the CPU is well-matched to its peers. The Intel Core i5-14600K has an average score of 49166, which is 0.2% higher than the 5950X’s 49062, while the Intel Xeon Gold 5318H is 0.7% lower. This indicates that the 5950X delivers competitive raw performance, but its 16-core/32-thread configuration is overkill for Doom, which likely scales more strongly with single-thread speed. The 1080p results, where the CPU must keep up with the GPU’s output, show that the 5950X does not introduce any measurable frame rate penalty—the 247.7 FPS on High at 1080p is limited by the GPU’s rendering capability, not the CPU’s processing speed.