Doom

The AMD Ryzen 5 7500X3D paired with the NVIDIA GeForce RTX 4080 delivers a formidable Doom experience, with the data indicating a system heavily skewed toward GPU limitation at higher resolutions. This analysis breaks down the measured performance across resolutions and settings, contextualizes the component roles, and ranks the combo against other tested configurations.

Resolution Scaling

The measured FPS data reveals a clear and predictable scaling pattern as resolution increases from 1920x1080 to 3840x2160. At 1920x1080 with High settings, the combo achieves an average of 295 FPS. Moving to 2560x1440 at the same settings drops the average to 191 FPS, a reduction of 104 FPS. The jump to 3840x2160 sees the average fall further to 104 FPS, which is exactly half the 1080p figure. This linear halving from 1080p to 4K strongly indicates that the system is becoming progressively more GPU-bound, as the RTX 4080's rendering workload increases with pixel count.

The trend is consistent across all settings presets. At Low settings, the average FPS drops from 366 at 1080p to 260 at 1440p, and finally to 141 at 4K. At Ultra settings, the figures are 241, 156, and 85 for 1080p, 1440p, and 4K respectively. The scaling from 1440p to 4K is particularly telling: at High settings, the drop is 87 FPS (45.5%), while at Low settings, the drop is 119 FPS (45.8%). This near-uniform percentage drop across settings suggests that the limiting factor at 4K is the GPU's pixel throughput, not the CPU's processing capability.

At 1080p, the CPU plays a more significant role. The difference between Low and Ultra settings at 1080p is 125 FPS (366 vs 241), which is substantial. However, the Ryzen 5 7500X3D's 12 threads and 96 MB of shared L3 cache are sufficient to feed the RTX 4080 at these high frame rates, as evidenced by the fact that even the lowest 1080p average (241 FPS at Ultra) remains far above typical monitor refresh rates. The data suggests that at 1080p, the system is balanced but still leans on the GPU; at 4K, the GPU is unequivocally the bottleneck.

Settings Recommendations

The measured rows provide clear guidance on the optimal settings-to-performance trade-off. At 3840x2160, the Medium preset delivers an average of 123 FPS, with a minimum of 104 FPS and a maximum of 141 FPS. This is a substantial improvement over Ultra, which averages 85 FPS. The jump from Medium to High at 4K yields 104 FPS average, but the minimum FPS for Medium is identical to the average for High, suggesting that Medium offers a more stable experience at the cost of some visual fidelity.

At 2560x1440, the High preset achieves 191 FPS average, while Medium reaches 226 FPS. For users with 144Hz displays, High is the best choice, as it sits comfortably above the refresh rate threshold. The Medium preset at 1440p, with a minimum of 192 FPS, provides an even greater headroom, but the visual quality reduction may not be justified given that High already exceeds 144 FPS.

At 1920x1080, all settings produce playable frame rates. The Low preset averages 366 FPS, Medium 349 FPS, High 295 FPS, and Ultra 241 FPS. Given that the difference between Medium and High is 54 FPS, and the difference between High and Ultra is also 54 FPS, the data suggests that High is the sweet spot for competitive play where frame rate consistency matters more than the marginal visual gains of Ultra. The Ultra preset's 241 FPS average is still exceptionally high, but the diminishing returns in visual quality relative to the 18% performance drop from High make it less compelling.

GPU Role

The NVIDIA GeForce RTX 4080 is the dominant component in this configuration, and its specifications directly explain the measured performance. The GPU features 16 GB of GDDR6X memory on a 256-bit bus, delivering a bandwidth of 716.8 GB/s. This memory configuration is more than sufficient for Doom at 4K, where the Ultra preset averages 85 FPS, indicating that VRAM capacity is not a limiting factor in this title.

The GPU's clock speeds are significant: a base clock of 2205 MHz and a boost clock of 2505 MHz. These clocks, combined with 9728 shading units and 112 ROPs, produce a pixel rate of 280.6 GPixel/s and a texture rate of 761.5 GTexel/s. The FP32 performance of 48.74 TFLOPS further underscores the GPU's raw compute capability. In Doom, a fast-paced FPS with heavy texture and geometry work, these specifications translate directly to the high frame rates observed.

The RTX 4080's performance relative to its nearest rivals in the benchmark database shows a tight grouping. It scores an average of 54247 across all benchmarks, placing it within 0.1% of the RTX 4080 SUPER (54466 vs 54247) and 1.1% ahead of the AMD Radeon Pro W5700X. The data indicates that the RTX 4080 is a high-end GPU, with a percentile rank of 86 against all GPUs. In Doom specifically, the combination of its high clock speeds and ample VRAM allows it to maintain 104 FPS at 4K High, which is a strong result for a demanding resolution.

FAQ

Q: What is the maximum average FPS achievable at 4K with this combo?

A: The highest average FPS at 3840x2160 is achieved with the Low settings preset, which yields an average of 141 FPS. The Medium preset follows at 123 FPS, High at 104 FPS, and Ultra at 85 FPS.

Q: How does the RTX 4080 compare to its closest rival in overall benchmarks?

A: The RTX 4080 has an average benchmark score of 54247, which is 0.1% higher than the NVIDIA GeForce RTX 4080 SUPER (54466). It also leads the AMD Radeon Pro W5700X by 1.1% and trails the AMD Radeon RX 6750 GRE 12 GB by 2.6%.

Q: Is the CPU or GPU the limiting factor at 1440p?

A: At 2560x1440, the GPU is the primary limiting factor. The frame rate drops from 295 FPS at 1080p High to 191 FPS at 1440p High, which is a 35% reduction. This scaling pattern is consistent with GPU-bound rendering, as the CPU's workload does not increase proportionally with resolution.

Q: What is the frame time consistency at 4K Medium?

A: At 3840x2160 with Medium settings, the measured frames range from a minimum of 104 FPS to a maximum of 141 FPS, with an average of 123 FPS. This represents a 37 FPS spread between the minimum and maximum, indicating some variance but generally stable performance.

Q: Does the 16 GB VRAM of the RTX 4080 ever become a constraint in Doom?

A: The data shows no evidence of VRAM constraints. At 4K Ultra, the average FPS is 85, which is the lowest measured but still playable. The 16 GB GDDR6X memory, with 716.8 GB/s bandwidth, is adequate for all tested settings, as the frame rate drops are attributable to GPU compute load rather than memory capacity.

Q: How does the Ryzen 5 7500X3D's performance compare to its nearest rivals?

A: The CPU has an average benchmark score of 44573, which is 0.2% higher than the Intel Core Ultra X9 388H (44466) and 0.5% higher than the Intel Core i9-13950HX (44342). It trails the Intel Core i5-14600 (44889) by 0.7%.

CPU Role

The AMD Ryzen 5 7500X3D is a 6-core, 12-thread processor based on the Zen 4 Raphael architecture, manufactured on a 5 nm process. It operates with a base clock of 4.00 GHz and a boost clock of 4.50 GHz, and its 96 MB of shared L3 cache is the defining feature of the X3D line. In Doom, this cache configuration is particularly beneficial, as the game's engine frequently accesses the same data structures for enemy AI, physics, and world state.

The CPU's benchmark scores corroborate its suitability for gaming. It achieves a single-thread score of 3494 and a multithread score of 25047 in Passmark tests. Its percentile rank of 89 against all CPUs places it in the upper echelon of processors. In the context of Doom, the single-thread performance is critical, as the game's main game logic thread can become a bottleneck at very high frame rates. The data shows that at 1080p Low, the combo reaches 366 FPS, which indicates that the CPU is capable of feeding the GPU at extremely high frame rates without becoming a limiting factor.

The nearestRivals data for the CPU shows it is closely matched with several other high-end processors. The deltaPct values are all within 0.7% of the Ryzen 5 7500X3D's average score, suggesting that this processor is performance-competitive with the Intel Core Ultra X9 388H, Intel Core i9-13950HX, and Intel Core i5-14600. In Doom specifically, the CPU's role is to ensure that the GPU is never starved of data, and the measured results suggest it fulfills this role admirably, even at 4K where the GPU is clearly the bottleneck.

Measured FPS Breakdown

The complete set of measured FPS data provides a comprehensive view of performance across all combinations. At 1920x1080, the results are: Low averages 366 FPS, Medium averages 349 FPS (with a minimum of 297 and maximum of 401), High averages 295 FPS, and Ultra averages 241 FPS. The 1080p results show a maximum spread of 125 FPS between Low and Ultra, indicating that the GPU's load scales significantly with settings even at this resolution.

At 2560x1440, the averages are: Low at 260 FPS, Medium at 226 FPS (minimum 192, maximum 260), High at 191 FPS, and Ultra at 156 FPS. The spread between Low and Ultra is 104 FPS, which is narrower than at 1080p, suggesting that the GPU is beginning to saturate. The Medium preset's maximum of 260 FPS matches the Low preset's average, indicating that the GPU can occasionally hit its peak performance even at higher settings.

At 3840x2160, the averages are: Low at 141 FPS, Medium at 123 FPS (minimum 104, maximum 141), High at 104 FPS, and Ultra at 85 FPS. The spread between Low and Ultra is 56 FPS, which is the smallest of the three resolutions. This confirms that at 4K, the GPU is the dominant bottleneck, as the settings-based performance differences compress. The Medium preset's minimum of 104 FPS is notable, as it exactly matches the High preset's average, suggesting that Medium provides a more consistent frame rate than High at this resolution.

How This Combo Ranks

The AMD Ryzen 5 7500X3D + NVIDIA GeForce RTX 4080 combination holds a rank of 294 out of 3712 tested combos in Doom. This places it in the top 8% of all tested configurations, which is a strong result for a high-end pairing. The rank reflects the combination's ability to deliver high frame rates across all resolutions and settings, with the 4K High average of 104 FPS being a particularly competitive figure.

The combo's rank is likely influenced by the balanced nature of the components. The RTX 4080's GPU-bound performance at 4K is complemented by the Ryzen 5 7500X3D's strong single-thread capabilities at 1080p. The data shows that this combo does not exhibit any significant weakness in Doom, as even the lowest measured average (85 FPS at 4K Ultra) remains above the threshold for smooth gameplay. The rank of 294 suggests that there are 293 other combos that outperform it, but given the extremely high absolute performance levels, this is a minor distinction. The combination of a top-tier GPU with a high-cache CPU proves to be a well-matched pairing for this title, delivering consistently high frame rates that would satisfy even the most demanding players.