Doom

The Intel Core Ultra X9 388H paired with the NVIDIA GeForce RTX 5090 Mobile delivers a formidable showing in Doom, a 2016 FPS known for its id Tech 6 engine and demanding Vulkan/OpenGL performance. This mobile combination posts frame rates that range from highly playable at 4K to exceptionally high at 1080p, with clear scaling patterns that reveal where the bottleneck shifts between the CPU and GPU. The data below interprets these measured results, contextualizes them against similar hardware, and provides practical settings guidance based solely on the recorded figures.

Resolution Scaling

The measured average FPS across resolutions tells a clear story about the balance between the Intel Core Ultra X9 388H and the RTX 5090 Mobile. At 1920x1080, the combo is clearly CPU-limited in many scenarios, as evidenced by the massive frame rates on offer. With Low settings, the average hits 330 FPS, and even at High settings, it maintains 243 FPS. These numbers are so high that the GPU is likely idling, waiting on the CPU to feed it draw calls. The 16-core, 16-thread processor with a 5.10 GHz boost clock is doing the heavy lifting here, and the RTX 5090 Mobile’s 31.80 TFLOPS of FP32 performance is not the limiting factor.

Moving to 2560x1440, the picture shifts noticeably. The average FPS at Low settings drops to 214, which is a 35% reduction from the 1080p Low result. High settings yield 157 FPS, down from 243. This scaling suggests that the GPU is now becoming more involved, as the pixel throughput demand increases. The RTX 5090 Mobile’s 896.0 GB/s of memory bandwidth and 10496 shading units are being exercised more heavily. The delta between Low and High at 1440p is 57 FPS, which is larger than the 87 FPS delta at 1080p, indicating that the GPU’s load is growing.

At 3840x2160, the GPU bottleneck becomes dominant. The average FPS at High settings falls to 85, and at Ultra, it drops to 70. Low settings still produce a respectable 116 FPS, but the gap between Low and Ultra is now 46 FPS, compared to 132 FPS at 1080p. This compression of the settings range at 4K is a classic sign of a GPU-bound scenario. The RTX 5090 Mobile’s 169.7 GPixel/s pixel rate is being saturated, while the CPU’s role diminishes. The scaling from 1440p High (157 FPS) to 4K High (85 FPS) represents a 46% drop, which is substantial but expected given the 2.25x increase in pixel count. The data indicates that at 1080p, the Core Ultra X9 388H is the primary performance driver, while at 4K, the RTX 5090 Mobile dictates the outcome.

FAQ

Q: How does the Intel Core Ultra X9 388H compare to its closest rival in overall CPU benchmarks?

A: The Core Ultra X9 388H has an average benchmark score of 44466, which places it 0.2% behind the AMD Ryzen 5 7500X3D (44573) and 0.3% ahead of the Intel Core i9-13950HX (44342). It also edges out the AMD Ryzen AI Max 385 by 0.4% and the Intel Core i5-13600 by 0.5%. This puts it in a tight cluster of high-end processors, with negligible performance differences.

Q: Is the RTX 5090 Mobile significantly faster than the nearest GPU rivals?

A: The RTX 5090 Mobile’s average benchmark score is 45152. It trails the AMD Radeon Pro 5500 XT by 0.5% (45384) and the Intel Arc A730M by 1% (45592). It is 0.8% ahead of the NVIDIA GeForce RTX 4070 Ti (44795) and 1.8% ahead of the NVIDIA RTX 5880 Ada Generation (45972). These deltas are all under 2%, indicating that the RTX 5090 Mobile performs within a narrow band of these desktop and mobile parts.

*Q: What is the best resolution for this combo in Doom to maintain high frame rates?*

A: At 2560x1440 with High settings, the combo averages 157 FPS, which is excellent for a fast-paced FPS. If you prefer maximum smoothness, 1920x1080 with High settings delivers 243 FPS, but this may be overkill for most displays. For 4K gaming, High settings still provide a playable 85 FPS average, but you will sacrifice some headroom.

*Q: How does the CPU’s thread count affect performance in Doom?*

A: The Core Ultra X9 388H has 16 cores and 16 threads, with no hyper-threading. In Doom, which is well-optimized for multi-core CPUs, this configuration is sufficient to push high frame rates at 1080p, as seen by the 330 FPS Low result. The 5.10 GHz boost clock also helps with single-threaded draw call processing.

*Q: Does the RTX 5090 Mobile’s 24 GB of GDDR7 memory impact Doom performance?*

A: Doom from 2016 is not a VRAM-heavy title, so the 24 GB capacity is unlikely to be a limiting factor. The 896.0 GB/s memory bandwidth, however, contributes to the high frame rates at 1440p and 4K, allowing the GPU to stream textures efficiently without stuttering.

Q: What does the combo’s rank of 788 out of 3712 tested combos mean?

A: This rank places the Core Ultra X9 388H + RTX 5090 Mobile in the top 21% of all tested combinations in Doom. It indicates that while this is a strong performer, there are 787 other combos that achieve higher average FPS, likely featuring higher-clocked desktop CPUs or more powerful desktop GPUs.

CPU Role

The Intel Core Ultra X9 388H is a 16-core, 16-thread processor based on the Panther Lake architecture, manufactured on a 3 nm process. Its base clock is 2.10 GHz, but the boost clock reaches 5.10 GHz, which is critical for gaming. In Doom, the CPU’s role is most apparent at 1080p, where the average FPS at Low settings (330) and High settings (243) are so high that the GPU cannot be the limiting factor. The 18 MB of shared L3 cache and 3 MB per-core L2 cache help reduce memory latency, which is beneficial for the game’s draw call submission.

The processor’s benchmark scores reinforce its capability. In Cinebench R23, it scores 18911 multi-core and 2200.5 single-core. The single-core score is particularly relevant for Doom, as the game’s main thread often relies on high IPC and clock speed. The PassMark single-thread score of 4280 further confirms strong single-threaded performance. The CPU’s percentile vs all CPUs is 88, meaning it outperforms 88% of tested processors, which is a robust result for a mobile chip.

However, the CPU’s role diminishes as resolution increases. At 4K, the RTX 5090 Mobile becomes the bottleneck, and the CPU’s 16 threads are less stressed. The data shows that at 4K High, the average FPS is 85, which is only 35% of the 1080p High result. This scaling is typical of a GPU-bound scenario. The CPU’s 153.6 GB/s memory bandwidth for LPDDR5X is also sufficient to feed the GPU without causing stalls. In summary, the Core Ultra X9 388H provides ample headroom for Doom at lower resolutions, but its influence wanes at 4K where the GPU’s raw throughput takes over.

How This Combo Ranks

The combo of the Intel Core Ultra X9 388H and NVIDIA GeForce RTX 5090 Mobile ranks 788th out of 3712 tested combinations in Doom. This places it in the 79th percentile, meaning it outperforms roughly 79% of all tested combos. Given that this is a mobile CPU and GPU pairing, this rank is impressive, as many of the higher-ranked combos likely feature desktop components with higher power limits and cooling.

To contextualize this rank, consider the individual component benchmarks. The CPU’s average score of 44466 is within 0.5% of its nearest rivals, which include the AMD Ryzen 5 7500X3D and Intel Core i9-13950HX. The GPU’s average score of 45152 is similarly close to its rivals, such as the RTX 4070 Ti. Neither component is a standout outlier, but their combination yields a strong result. The rank of 788 suggests that the pairing is well-balanced, with no major bottleneck that would drag performance down.

The measured FPS data supports this. At 1440p High, the combo achieves 157 FPS, which is a high refresh rate gaming experience. At 1080p High, it hits 243 FPS, which is beyond what most 240Hz displays can show. Even at 4K High, the 85 FPS average is playable on many TVs and monitors. This consistency across resolutions indicates that the combo does not suffer from a severe CPU or GPU limitation, making it a versatile choice for Doom players.

Settings Recommendations

Based on the measured FPS rows, the optimal settings depend on your target resolution and refresh rate. For 1920x1080, the High preset at 243 FPS is the best balance of visual quality and performance. The Ultra preset drops to 198 FPS, which is still high, but the 45 FPS difference may not justify the visual gains, especially since High already looks excellent in Doom. If you have a 360Hz display, the Low preset at 330 FPS is an option, but the visual downgrade is significant.

For 2560x1440, the High preset at 157 FPS is the recommended choice. It provides smooth gameplay on 144Hz or 165Hz monitors. The Medium preset at 186 FPS offers more headroom, but the jump from Medium to High is worth the 29 FPS cost for improved textures and effects. The Ultra preset at 128 FPS is still playable, but it is close to the 144Hz refresh rate threshold, leaving less margin for dips.

For 3840x2160, the High preset at 85 FPS is the sweet spot. The Medium preset at 101 FPS is also viable if you prefer extra headroom, but the visual difference between Medium and High in Doom is noticeable. The Ultra preset at 70 FPS is borderline for a smooth experience, especially in fast-paced combat, so it is only recommended if you prioritize image quality over frame rate. The Low preset at 116 FPS is the best for 4K gaming on a 120Hz display, but it sacrifices too much detail for most players. Overall, High settings across all resolutions provide the best balance of fidelity and performance, with the understanding that 4K will require a 60-100Hz display to fully enjoy.

Measured FPS Breakdown

1920x1080 (1080p):

• Low: 330 FPS average
• Medium: 287 FPS average, with a minimum of 244 FPS and maximum of 331 FPS
• High: 243 FPS average
• Ultra: 198 FPS average

At 1080p, the combo is clearly CPU-bound, as even Ultra settings exceed 198 FPS. The Medium preset shows a tight frame time distribution, with the minimum still above 244 FPS, indicating no stutter.

2560x1440 (1440p):

• Low: 214 FPS average
• Medium: 186 FPS average, with a minimum of 158 FPS and maximum of 214 FPS
• High: 157 FPS average
• Ultra: 128 FPS average

The 1440p results show a more balanced load. The Medium preset’s minimum of 158 FPS is still above 144Hz, making it a safe choice for high refresh rate displays. The gap between Low and Ultra is 86 FPS, reflecting the GPU’s growing influence.

3840x2160 (4K):

• Low: 116 FPS average
• Medium: 101 FPS average, with a minimum of 86 FPS and maximum of 116 FPS
• High: 85 FPS average
• Ultra: 70 FPS average

At 4K, the GPU is the clear bottleneck. The Medium preset’s minimum of 86 FPS is above 60 FPS, ensuring smooth gameplay on standard 60Hz displays. The Ultra preset’s 70 FPS average is playable but may dip below 60 FPS in intense scenes, given the lack of a reported minimum. The scaling from Low to Ultra is 46 FPS, which is the smallest across all resolutions, confirming the GPU-bound nature.

These measured values are the definitive data points for this combo. The lack of min/max values for many rows means we cannot assess frame time consistency beyond the Medium presets, but the averages provide a reliable baseline for expectations. For a 2016 title like Doom, this mobile setup delivers outstanding performance, with the only compromise being at 4K Ultra where frame rates dip to 70 FPS.