Doom

The AMD Ryzen 7 5800X3D paired with the NVIDIA GeForce RTX 5090 delivers a formidable performance profile in Doom, a 2016 FPS title. Benchmark results indicate that this combination is heavily optimized for high-refresh-rate gameplay, with the data showing a clear progression of frame rates that scales predictably with resolution and settings. The measured FPS figures reveal a system capable of exceeding 300 frames per second at 1080p with lower settings, while still maintaining triple-digit performance at 4K Ultra, positioning this combo as a top-tier option for competitive and immersive play.

Resolution Scaling

The performance drop from 1080p to 4K is substantial but expected, revealing a shift in the bottleneck from the CPU to the GPU as pixel count increases. At 1080p with Low settings, the combo achieves an average of 337.2 FPS, which drops to 293.7 FPS at 1440p and further to 158.3 FPS at 4K. This represents a 53% reduction in frame rate from 1080p Low to 4K Low, indicating that the RTX 5090’s rendering workload becomes the primary limiting factor at higher resolutions, while the 5800X3D’s strong single-thread performance keeps the CPU from being a constraint at lower resolutions.

The scaling pattern holds across all settings tiers. With High settings, the average FPS falls from 303.4 at 1080p to 221.2 at 1440p and 119.2 at 4K. The Ultra preset shows a similar trajectory: 279.8 FPS at 1080p, 181.2 FPS at 1440p, and 97.2 FPS at 4K. The relative drop from 1440p to 4K is steeper than from 1080p to 1440p, with High settings seeing a 46% decline versus a 27% decline in the earlier step. This suggests that the RTX 5090’s memory bandwidth and compute throughput are being increasingly taxed as resolution rises, making the GPU the clear performance limiter at 4K.

Interestingly, the gap between Low and Ultra settings narrows as resolution increases. At 1080p, the difference between Low and Ultra is 57.4 FPS (337.2 vs 279.8), while at 4K, the difference shrinks to 61.1 FPS (158.3 vs 97.2). This indicates that at 4K, the GPU is so saturated that even reducing settings to Low cannot fully offset the pixel-count penalty, whereas at 1080p, the CPU can feed frames fast enough to benefit from lower settings. The data suggests that for maximum competitive advantage, players should target 1080p or 1440p, where the combo can leverage its full potential, while 4K is best reserved for visual fidelity at slightly lower frame rates.

FAQ

Q: What is the highest average FPS achievable with this CPU-GPU combo in Doom?

A: The highest measured average FPS is 337.2, achieved at 1920x1080 resolution with Low settings.

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

A: At 3840x2160 with Ultra settings, the average FPS drops to 97.2, which is still comfortably above 60 FPS but significantly lower than lower resolutions.

Q: Is the CPU or GPU the bottleneck at 1080p?

A: At 1080p, the data shows frame rates above 300 FPS across all settings, indicating the GPU is the primary limiting factor, as the CPU’s single-thread performance is sufficient to feed the RTX 5090.

Q: What is the performance difference between Low and Ultra settings at 1440p?

A: At 2560x1440, Low settings yield 293.7 FPS, while Ultra settings yield 181.2 FPS, a difference of 112.5 FPS.

Q: Does the combo rank highly among other tested configurations?

A: Yes, the combo ranks 65th out of 1681 tested combinations in Doom, placing it in the top 4% of all tested systems.

Q: How much FPS is lost when moving from 1440p to 4K at High settings?

A: Moving from 2560x1440 to 3840x2160 at High settings results in a drop from 221.2 FPS to 119.2 FPS, a loss of 102 FPS.

GPU Role

The NVIDIA GeForce RTX 5090 is the dominant component in this configuration, and its specifications directly explain the frame rates observed in Doom. Featuring 32 GB of GDDR7 memory on a 512-bit bus, the card provides 1.79 TB/s of bandwidth, which is critical for feeding the massive data requirements of 4K textures and high-resolution rendering. The GPU’s boost clock of 2407 MHz, combined with 21,760 shading units, drives the raw compute throughput necessary to maintain high FPS in a fast-paced FPS title like Doom.

The RTX 5090’s architecture, Blackwell 2.0, is built on a 5 nm process at TSMC, with a die size of 750 mm² and 92,200 million transistors. This hardware configuration allows for a peak FP32 performance of 104.8 TFLOPS, which the benchmark results reflect in the GPU’s ability to push 337.2 FPS at 1080p Low. The card’s 176 ROPs and 680 TMUs ensure efficient pixel and texture processing, which is evident in the relatively small performance gap between Medium and High settings at 1440p (260.5 vs 221.2 FPS).

The GPU’s role becomes more pronounced at higher resolutions. At 4K Ultra, the frame rate falls to 97.2 FPS, a 71% reduction from 1080p Low. This is consistent with the GPU being the sole bottleneck, as the CPU’s performance remains constant across resolutions. The RTX 5090’s 1.79 TB/s memory bandwidth is sufficient to avoid stuttering, but the sheer pixel count at 4K overwhelms the shading units, leading to the observed scaling. The GPU’s 575 W TDP and PCIe 5.0 x16 interface ensure it has both the power and bandwidth to operate at full capacity, making it the clear driver of performance in this combo.

How This Combo Ranks

In the database of tested configurations, the AMD Ryzen 7 5800X3D and NVIDIA GeForce RTX 5090 combination ranks 65th out of 1681 combos in Doom. This places the system in the top 3.9% of all tested setups, indicating exceptional performance for this specific title. The ranking reflects not just the raw power of the RTX 5090, but also the compatibility of the 5800X3D with this workload, as the CPU’s 96 MB of shared L3 cache helps maintain high frame pacing.

The combo’s rank is particularly impressive given that Doom is a 2016 title with a well-documented engine that scales well with both CPU and GPU resources. The high ranking suggests that this pairing is near-optimal for maximizing frame rates, especially at 1080p and 1440p where the CPU’s single-thread performance (3dmark_single_thread score of 884) can keep up with the GPU’s output. The data shows that the combo outperforms the vast majority of alternatives, with only 64 other combinations achieving higher average FPS in this game.

Relative to the RTX 5090’s own benchmark scores, the combo’s in-game rank is consistent with the GPU’s percentileVsAllGpus of 94, indicating that the card is performing as expected. The CPU’s percentileVsAllCpus of 83 highlights that the 5800X3D is a strong but not top-tier processor, yet in Doom, its gaming-focused cache design compensates for any raw compute deficiencies. This suggests that for FPS titles, the 5800X3D’s architecture is more valuable than its multi-threaded benchmark scores might imply, contributing to the combo’s high overall rank.

CPU Role

The AMD Ryzen 7 5800X3D plays a supporting but critical role in this combo, with its 8 cores and 16 threads based on the Zen 3 architecture (codename Vermeer). The CPU’s base clock of 3.40 GHz and boost clock of 4.50 GHz are modest by modern standards, but its 96 MB of shared L3 cache is the standout feature. This large cache is particularly effective in games like Doom, where repetitive data access patterns benefit from faster on-chip storage, reducing the need to fetch data from system memory.

Benchmark data supports the CPU’s gaming focus. The 3dmark_16_threads score of 7299 and cinebench_r23_multicore score of 24063 show respectable multi-threaded performance, but the single-thread scores are more telling: 3dmark_single_thread at 884 and cinebench_r23_singlecore at 3397. These single-thread results are what enable the high frame rates at 1080p, where the CPU must process game logic and draw calls quickly enough to keep the GPU fed. The 5800X3D’s ability to sustain 337.2 FPS at 1080p Low indicates that its per-core performance is sufficient for this title.

The CPU’s memory support for DDR4 with a dual-channel bus and 51.2 GB/s bandwidth is adequate for Doom, though it is a potential limitation compared to newer platforms. However, the L3 cache mitigates this by reducing memory latency, allowing the CPU to maintain high instruction throughput. The CPU’s 105 W TDP is modest, and its production status is end-of-life, but in this specific game, it proves to be a highly capable partner for the RTX 5090, ensuring that the GPU is not starved of data. The data confirms that the 5800X3D’s cache-heavy design is the right choice for Doom, as it allows the combo to achieve frame rates that would otherwise require a more powerful CPU.