Doom

Doom (2016) paired with the AMD Ryzen 9 8945HX and NVIDIA GeForce RTX 4090 Mobile is a combination that turns a demanding fast-paced FPS into an almost trivial workload for a modern flagship laptop. The benchmark data below, drawn from measured in-game results across three resolutions and four quality presets, shows framerates that clear every practical refresh threshold — even at 4K Ultra. This page breaks down where the performance comes from, how the combo ranks against other tested hardware pairings in the database, and which settings deliver the best experience.

FAQ

Q: Can this combo run Doom at 4K with high settings?

A: Yes, comfortably. At 3840x2160 on the High preset, the measured average is 81 FPS. Even the Ultra preset at 4K holds a 67 FPS average, which is playable for a single-player FPS campaign.

Q: What is the highest framerate this combo records in Doom?

A: 316 FPS — the average at 1920x1080 on the Low preset. The Medium preset at 1080p is nearly as fast at 275 FPS, with a recorded maximum of 316 FPS.

Q: How does the Ryzen 9 8945HX compare to rival CPUs in the database?

A: It sits in the 95th percentile of all CPUs, with an average benchmark score of 76212. Its nearest rival, the Intel Core Ultra 9 285HX, scores 76155 — a gap of just 0.1%. The AMD EPYC Embedded 8224P and AMD Ryzen Threadripper PRO 9945WX are both 0.4% ahead, and the AMD Ryzen 9 9950X3D trails by 0.6%.

Q: How does the RTX 4090 Mobile compare to other GPUs?

A: It ranks in the 84th percentile of all GPUs with an average benchmark score of 43667. Closest rivals include the NVIDIA Quadro M6000 (0.8% behind), the NVIDIA GeForce RTX 5050 Mobile (0.9% behind), the NVIDIA Quadro M6000 24 GB (0.9% behind), and the NVIDIA RTX A6000 (0.9% ahead).

Q: Where does this CPU-plus-GPU pairing rank in Doom specifically?

A: It ranks 823rd out of 3712 tested combinations — solidly in the upper quarter of tested setups for this game.

Q: Does the game ever drop below 60 FPS at any tested setting?

A: No. The lowest recorded figure in the dataset is the 67 FPS average at 4K Ultra, and the only measured minimum frame rate — 82 FPS at 4K Medium — also stays well above 60.

GPU Role

The RTX 4090 Mobile is the reason Doom runs this well. Built on TSMC's 5 nm process, the AD103 chip packs 45,900 million transistors into a 379 mm² die — a density of 121.1 million transistors per square millimetre. The spec sheet reads like a desktop card: 9728 shading units, 304 TMUs, 112 ROPs, 76 RT cores and 304 tensor cores, driven by a 1335 MHz base clock that boosts to 1695 MHz.

Memory is where this GPU earns its 4K results. The 16 GB of GDDR6 sits on a 256-bit bus running at 2250 MHz (18 Gbps effective), producing 576.0 GB/s of bandwidth. Doom at 3840x2160 is texture- and bandwidth-heavy, and the measured results reflect that headroom: the step from Ultra (67 FPS) to High (81 FPS) at 4K is modest, suggesting the card is not choking on its frame buffer even at maximum detail. Raw throughput backs this up — 32.98 TFLOPS of FP32 compute, 189.8 GPixel/s of pixel fill rate and 515.3 GTexel/s of texture fill rate.

The card's synthetic scores contextualise its standing. A PassMark G3D score of 27212, a Geekbench OpenCL result of 180831 and a Geekbench Vulkan result of 170774 place it in the 84th percentile of all GPUs. Notably, Doom is a Vulkan title, and the strong Vulkan compute showing here aligns with the excellent in-game framerates. Against its nearest rivals, the picture is tight: the Quadro M6000 and Quadro M6000 24 GB both sit 0.8–0.9% behind, the GeForce RTX 5050 Mobile is 0.9% behind, and the workstation-class RTX A6000 is 0.9% ahead. In other words, the 4090 Mobile trades blows with hardware well outside its laptop form factor.

The 120 W TDP is worth noting as the constraint that separates this mobile part from its desktop namesake, yet the data shows it imposes no practical penalty in a 2016-release title. The GPU's DirectX 12 Ultimate (12_2) and Vulkan 1.4 support means the game runs on a fully modern API path.

How This Combo Ranks

Within Doom specifically, the Ryzen 9 8945HX plus RTX 4090 Mobile pairing ranks 823rd out of 3712 tested combinations. That placement in the upper quarter of the field is consistent with the component-level percentiles: the CPU sits in the 95th percentile of all processors, the GPU in the 84th percentile of all graphics cards.

The rank is best understood through the lens of diminishing returns. Doom is an older title — released in 2016 — and its engine scales efficiently across hardware tiers. A combo with a 95th-percentile CPU and 84th-percentile GPU is enormously overqualified for it, which means the 823rd rank reflects a field dense with equally excessive pairings at the top rather than any weakness in this configuration. The measured framerates tell the story: when even the worst-case scenario (4K Ultra, 67 FPS) is smooth, ranking differences near the top of the table are academic for actual play.

Component-level rival data reinforces how competitive this setup is. The 8945HX's average benchmark score of 76212 is within 1% of the Intel Core Ultra 9 285HX (76155), the AMD EPYC Embedded 8224P (76492), the AMD Ryzen Threadripper PRO 9945WX (76513) and the AMD Ryzen 9 9950X3D (75779). Swapping in any of those CPUs would move the Doom result negligibly.

Settings Recommendations

The data points to one clear answer per resolution:

• 1920x1080 — Medium. At 275 FPS average with a measured floor of 234 FPS, Medium is fast enough for any high-refresh display, and the Ultra preset's 190 FPS would squander headroom on a 240 Hz-class panel. Only drop to Low (316 FPS) if chasing extreme refresh rates.
• 2560x1440 — High. The 150 FPS average comfortably exceeds 144 Hz, while Ultra (123 FPS) falls below that threshold. High is the sweet spot where visual fidelity and refresh alignment meet.
• 3840x2160 — Medium or High. Medium averages 96 FPS with a measured minimum of 82 FPS — never dipping near 60. High averages 81 FPS, still above 60 at all times based on the Medium preset's floor of 82. Ultra at 67 FPS average is playable but leaves little margin; a demanding moment could push it toward the 60 line. High is the safer choice; Medium is the smoother one.

The pattern across the data is that Doom's presets cost relatively little performance on this hardware: at 4K, going from Ultra to Low only buys 44 additional frames (67 to 111 FPS). That flat scaling means image quality can be maximised without meaningful gameplay cost at 1080p and 1440p; only at 4K does the preset choice genuinely matter.

Measured FPS Breakdown

All figures are measured averages; min/max data is recorded where available.

3840x2160 (4K):

• Low: 111 FPS
• Medium: 96 FPS (min 82, max 111)
• High: 81 FPS
• Ultra: 67 FPS

2560x1440:

• Low: 204 FPS
• Medium: 178 FPS (min 151, max 205)
• High: 150 FPS
• Ultra: 123 FPS

1920x1080:

• Low: 316 FPS
• Medium: 275 FPS (min 234, max 316)
• High: 232 FPS
• Ultra: 190 FPS

The scaling tells a coherent story. From 1080p to 1440p, framerates drop by roughly a third at every preset — High goes from 232 to 150 FPS, Medium from 275 to 178. From 1440p to 4K, they drop by roughly another 45% — High falls from 150 to 81 FPS, Ultra from 123 to 67. This near-linear scaling with pixel count indicates a GPU-bound profile at higher resolutions, exactly what is expected from a fast CPU paired with a mobile flagship.

Notably, the Medium-preset maximums match the Low-preset averages at each resolution — 316 at 1080p, 205 versus 204 at 1440p, 111 at 4K — showing that Medium's best moments reach the same ceiling as running the game at its minimum detail. The frame-rate floors (234 at 1080p, 151 at 1440p, 82 at 4K Medium) sit remarkably close to their averages, indicating tight frame consistency rather than spiky delivery.

CPU Role

The Ryzen 9 8945HX is a 16-core, 32-thread Zen 4 processor from AMD's Dragon Range family, fabricated on TSMC's 5 nm node across two 71 mm² dies totalling 13,140 million transistors. It clocks from a 2.50 GHz base up to 5.40 GHz boost, carries 64 KB of L1 and 1 MB of L2 cache per core plus a 64 MB shared L3, and runs within a 55 W TDP on Socket FL1. Memory support is dual-channel DDR5 delivering 83.2 GB/s of bandwidth, with PCIe Gen 5 across 28 CPU lanes — more than the GPU's PCIe 4.0 x16 interface requires.

For Doom, single-threaded responsiveness matters more than core count, and the 8945HX delivers on both fronts. Its Cinebench R23 single-core score of 6030 (and R15 single-core of 607) reflects the strong per-core throughput that keeps a fast FPS engine fed, while the R23 multi-core score of 42713 and PassMark multithread score of 51405 show the aggregate throughput that prevents background load from intruding on gameplay. The PassMark single-thread score of 3907 rounds out a profile with no weak flank.

The database places this CPU in the 95th percentile of all processors, with an average benchmark score of 76212 — fractionally ahead of the Intel Core Ultra 9 285HX (0.1%) and the Ryzen 9 9950X3D (0.6% behind the 8945HX), and fractionally behind the EPYC Embedded 8224P and Threadripper PRO 9945WX (both 0.4% ahead). The multiplier is unlocked, and the integrated Radeon 610M graphics handle non-gaming display duties.

In Doom specifically, the CPU's contribution is invisible at 1440p and 4K — those results are GPU-limited — but evident at 1080p, where the 316 FPS Low and 275 FPS Medium figures represent the engine running at effectively full speed. A CPU in the 95th percentile guarantees that no frame rate in this dataset was left on the table by processor throughput. The 8945HX is, in short, exactly the kind of chip that makes a fast GPU look faster.