Doom

This combo pairs the Intel Core Ultra 9 185H with the NVIDIA GeForce RTX 5090, producing a dataset that clearly separates CPU-bound and GPU-bound behavior in Doom. The measured frame rates show a predictable pattern: the RTX 5090 dominates at lower resolutions, while the CPU becomes a meaningful constraint at 1080p. Here is the breakdown of what the numbers mean for anyone building or buying this specific configuration.

How This Combo Ranks

The combined configuration ranks 584th out of 2,930 tested combos in Doom. That places it in the top 20% of all systems tested for this game, which is a strong showing given the hardware involved. The RTX 5090 is a top-tier GPU, and the Core Ultra 9 185H is a capable mobile processor, so the pairing works well overall.

To put the CPU portion in context, the Core Ultra 9 185H sits at the 85th percentile among all tested CPUs, with an average benchmark score of 35,670. Its nearest rivals are extremely close: the AMD Ryzen AI 7 PRO 350 scores 35,719 (just 0.1% higher), the Intel Core 7 250H scores 35,728 (0.2% higher), and the AMD Ryzen 7 PRO 5845 scores 35,802 (0.4% higher). Even the AMD Ryzen 7 7700X, a desktop part, comes in at 35,909, only 0.7% ahead. This means the 185H is not leaving performance on the table relative to its direct competitors; the differences are within noise for most real-world workloads.

On the GPU side, the RTX 5090 ranks at the 92nd percentile among all GPUs, with an average benchmark score of 79,842. Its nearest rivals are also tightly grouped: the NVIDIA Tesla P100 PCIe 16 GB scores 79,605 (0.3% behind), the P100 PCIe 12 GB scores 79,396 (0.6% behind), and the AMD Radeon RX 6850M XT scores 78,940 (1.1% behind). The AMD Radeon Pro Vega 64X scores 80,959, which is 1.4% ahead of the RTX 5090. These deltas are small, but they show the 5090 is holding its own against a mix of workstation and mobile parts.

Given that both components perform near the top of their respective charts, the 584th overall rank is more a reflection of the sheer number of combos tested (2,930) than any weakness in this pairing. In absolute terms, this is a high-end system.

GPU Role

The RTX 5090 brings 32 GB of GDDR7 memory on a 512-bit bus, delivering 1.79 TB/s of bandwidth. That is a massive amount of memory bandwidth, which matters for Doom’s texture-heavy environments at high resolutions. The GPU’s base clock is 2017 MHz, with a boost clock of 2407 MHz, and memory runs at 1750 MHz (28 Gbps effective).

In Doom, the GPU’s role becomes clear when comparing resolutions. At 4K with High settings, the combo averages 85 FPS. Dropping to Low settings at 4K raises that to 116 FPS, which is a 36% increase. At 1440p, the same Low-to-High gap is smaller: 214 FPS on Low versus 157 FPS on High, a 36% difference again. At 1080p, Low hits 330 FPS while High stays at 243 FPS, a 36% delta as well. This consistent percentage gap across resolutions suggests the GPU is scaling linearly with settings, and the 5090’s raw compute is the primary driver.

The GPU’s shading units (21,760) and texture units (680) are the hardware doing the heavy lifting in Doom’s fast-paced rendering. The pixel rate of 423.6 GPixel/s and texture rate of 1,636.8 GTexel/s are high enough to keep frame rates well above refresh rates at 1440p and 1080p. At 4K, the 5090 still manages a playable 85 FPS on High, which is respectable for a 2016 title running at that resolution with modern drivers.

Resolution Scaling

The data shows a clear pattern: FPS drops as resolution increases, but the drop is not uniform across settings. From 1080p High (243 FPS) to 1440p High (157 FPS), the loss is 35%. From 1440p High to 4K High (85 FPS), the loss is 46%. That steeper drop at higher resolutions indicates the GPU is becoming the limiting factor, which is expected given the RTX 5090’s architecture.

On Low settings, the scaling is similar but with higher absolute numbers: 1080p Low (330 FPS) to 1440p Low (214 FPS) is a 35% drop, and 1440p Low to 4K Low (116 FPS) is a 46% drop. This consistent ratio suggests that Doom’s rendering load scales predictably with pixel count, and the GPU is handling the extra work without hitting a memory or bandwidth wall.

The interesting part is at 1080p. The jump from 4K Ultra (70 FPS) to 1080p Ultra (198 FPS) is a 183% increase, which is massive. But looking at the 1080p numbers across settings—Low at 330 FPS, Medium at 287 FPS, High at 243 FPS, Ultra at 198 FPS—the spread is narrow relative to the CPU’s capabilities. This suggests that at 1080p, the Core Ultra 9 185H is starting to become a bottleneck, especially at lower settings where the GPU has less work to do. The CPU’s single-thread score of 1,810.5 in Cinebench R23 and 1,794 in Geekbench single-core are solid, but Doom’s engine still relies heavily on a few threads.

If you are gaming at 1080p, the GPU is not being fully utilized. The frame rates are high enough that it doesn’t matter for most displays, but the data indicates the CPU is the ceiling there. At 1440p and 4K, the GPU takes over, and the 5090 delivers the expected scaling.

FAQ

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

A: Based on the measured data, 1440p High (157 FPS) offers the best balance. You get well over 144 FPS, and the GPU is still being pushed enough to matter. At 1080p, you are CPU-limited (e.g., 330 FPS on Low), and at 4K, you drop to 85 FPS on High, which is playable but not high-refresh territory.

Q: Does the 32 GB VRAM matter for Doom?

A: The RTX 5090 has 32 GB of GDDR7 memory, but Doom is not a VRAM-heavy title. The measured frame rates do not show any memory-related dips, even at 4K Ultra (70 FPS). The 1.79 TB/s bandwidth is more relevant to performance than the capacity.

Q: How does the Core Ultra 9 185H compare to its closest rivals?

A: The 185H scores 35,670 on average, which is within 0.7% of the AMD Ryzen 7 7700X (35,909), the Intel Core 7 250H (35,728), and the AMD Ryzen AI 7 PRO 350 (35,719). In Doom, this CPU is not the limiting factor at 1440p or 4K, so these deltas are unlikely to show up in frame rates.

Q: Is the RTX 5090 worth pairing with a mobile CPU?

A: The data shows the GPU is the dominant factor at 1440p and 4K. At 4K High (85 FPS) and 1440p High (157 FPS), the 5090 is doing most of the work. At 1080p, the CPU holds things back, but that is an edge case for a GPU this strong.

Q: What is the lowest playable setting at 4K?

A: Low settings at 4K deliver 116 FPS on average. Medium gives 101 FPS, High gives 85 FPS, and Ultra gives 70 FPS. If you want 100+ FPS at 4K, Low is the only preset that achieves it.

Q: How does this combo rank against all tested systems?

A: It ranks 584th out of 2,930 combos in Doom. That puts it in the top 20% of all configurations tested, which is strong but not top-tier—there are faster combos, likely with desktop CPUs and the same GPU.

Settings Recommendations

For a 60 Hz 4K display, Ultra settings (70 FPS) are borderline, but High (85 FPS) is the better choice—it gives you a 21% frame rate bump over Ultra with a minimal visual difference in a fast-paced FPS. If you have a 120 Hz 4K panel, you will need to drop to Low (116 FPS) to stay above 100 FPS, or settle for Medium (101 FPS) with a small compromise.

For 1440p, High (157 FPS) is the sweet spot if you have a 144 Hz monitor. It clears the refresh rate with headroom, and Medium (186 FPS) only adds 18% more frames, which you will not notice on most displays. Ultra (128 FPS) is also playable if you want maximum quality, but it drops below the 144 Hz threshold.

At 1080p, the CPU becomes the bottleneck, so the settings choice matters less. Ultra (198 FPS) is still well above 144 Hz, and Low (330 FPS) is overkill for any current monitor. The data suggests using High (243 FPS) or Ultra (198 FPS) at 1080p, since the GPU has plenty of headroom and the visual quality improvements are essentially free.

The measured rows show that Medium at 1080p has a min FPS of 244 and max of 331, while Medium at 1440p ranges from 158 to 214. These min-max spreads indicate stable frame pacing, with no major dips. For the best experience per the measured data, target 1440p High or 4K High, depending on your display’s native resolution.

CPU Role

The Intel Core Ultra 9 185H has 16 cores and 22 threads, with a base clock of 3.90 GHz and a boost clock of 5.10 GHz. It is built on the Meteor Lake architecture with a 7 nm process, and it has 24 MB of shared L3 cache. The CPU’s multi-threaded performance is strong: Cinebench R23 multi-core scores 17,984.5, and Geekbench multi-core scores 11,657. Single-thread scores are 1,810.5 (Cinebench R23) and 1,794 (Geekbench).

In Doom, the CPU’s role is most visible at 1080p with low settings. The frame rate caps out at 330 FPS on Low, which is likely near the engine’s limit for this CPU. At 1440p and 4K, the GPU takes over, and the CPU is not the limiting factor—the frame rates scale almost purely with resolution and settings.

The CPU’s nearest rivals are all within 0.7% in average benchmark score, which means swapping the 185H for an AMD Ryzen 7 7700X or an Intel Core 7 250H would not change Doom’s frame rates in any meaningful way. The 185H’s 22 threads and 16 cores are more than enough for a game that was released in 2016, even with modern drivers and high refresh rates.

The integrated graphics (Arc Xe-LPG Graphics 128EU) are irrelevant in this configuration, since the discrete RTX 5090 handles all rendering. The CPU’s dual-channel memory support and 89.6 GB/s bandwidth are adequate for feeding the GPU, though the 5090’s own 1.79 TB/s bandwidth dwarfs that figure—another sign that the GPU is the dominant component in this pairing. For gaming, the 185H is a capable partner, but it is not the star of the show.