Doom

The Intel Core Ultra 5 125H is a 14-core, 18-thread mobile processor based on the Meteor Lake architecture, built on Intel's 7 nm process. It features a base clock of 3.60 GHz and a boost clock of 4.50 GHz, with a TDP of 28 W. The CPU's cache hierarchy includes 112 KB of L1 per core, 2 MB of L2 per core, and 18 MB of shared L3 cache. In synthetic benchmarks, the chip scores 12,804.5 in Cinebench R23 multi-core and 1,647.5 in single-core, placing it in the 79th percentile among all CPUs. Its average benchmark score of 27,507 is nearly identical to the AMD Ryzen 7 5800 (27,535, -0.1% delta) and the Intel Core i5-12600K (27,578, -0.3% delta), indicating that the 125H's processing power is competitive with those desktop parts despite its mobile form factor.

For Doom, a 2016 FPS title, the CPU's role is primarily to feed the GPU with draw calls and game logic. The measured frame rates across all resolutions and settings show that the CPU is not the bottleneck; instead, the integrated AMD Radeon 880M graphics determine performance. At 1080p Low, the combo achieves 90 FPS, which is the highest measured average. This suggests that even at lower graphical loads, the CPU can easily keep up with the GPU's output. The 125H's strong multi-threaded performance, as evidenced by its PassMark multi-thread score of 21,100, ensures that the game's engine has ample headroom for physics, AI, and other background tasks, even when the GPU is saturated. The CPU's 18 threads allow for efficient distribution of Doom's workload, which is known to scale well with multiple cores. However, because the GPU is the limiting factor, the CPU's exact clock speeds have a minimal impact on the final frame rate; the data shows a clear progression of FPS dropping as resolution and settings increase, which is a GPU-bound pattern.

FAQ

Q: What is the highest average FPS this combo achieves in Doom, and at what settings?

A: The highest average FPS is 90, recorded at 1920x1080 with Low settings. This is the only configuration in the measured data that reaches 90 FPS, with all other 1080p settings producing lower averages.

Q: How does the Intel Core Ultra 5 125H compare to its nearest CPU rivals in average benchmark score?

A: The 125H has an average benchmark score of 27,507. It is 0.1% behind the AMD Ryzen 7 5800 (27,535), 0.3% behind the Intel Core i5-12600K (27,578), and 0.3% behind the AMD Ryzen 7 5700X (27,578). It is 0.5% ahead of the AMD Ryzen 3 PRO 5355G (27,382).

Q: Does the combo's rank in Doom reflect CPU or GPU performance?

A: The combo ranks 2,858 out of 2,930 tested combinations. This low rank is heavily influenced by the AMD Radeon 880M's position in the 43rd percentile among all GPUs, whereas the CPU is in the 79th percentile. The GPU's integrated nature and modest performance relative to discrete options dominate the overall gaming result.

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

A: At 2560x1440, Ultra settings yield an average of 35 FPS, while Low settings produce 58 FPS. This represents a 23 FPS increase, or about 66% higher frame rate, when dropping from Ultra to Low.

Q: Is the AMD Radeon 880M's performance closer to any specific discrete GPU?

A: The Radeon 880M has an average benchmark score of 8,436. It is 0.1% ahead of the NVIDIA GeForce GTX 675MX (8,427), 0.3% behind the NVIDIA GeForce MX330 (8,458), and 0.3% behind the AMD Radeon HD 8870M (8,462). It is 1.3% ahead of the AMD Radeon R9 M375X (8,325).

Q: What is the frame rate drop from 1080p to 4K at High settings?

A: At High settings, the average FPS drops from 66 at 1920x1080 to 23 at 3840x2160. This is a 43 FPS reduction, meaning the 4K performance is roughly one-third of the 1080p performance.

Resolution Scaling

The measured FPS data reveals a steep performance decline as resolution increases, which is a classic indicator of GPU-bound rendering. At 1080p with High settings, the combo averages 66 FPS. Moving to 1440p High drops the average to 43 FPS, a 34.8% decrease. At 4K High, the average falls to 23 FPS, which is a 65.2% reduction from the 1080p baseline. This scaling pattern is consistent across all settings presets, confirming that the AMD Radeon 880M's pixel throughput is the primary constraint.

The Low settings preset shows the same trend but with higher absolute numbers. At 1080p Low, the combo hits 90 FPS. Dropping to 1440p Low yields 58 FPS, a 35.6% decline. At 4K Low, the average is 31 FPS, a 65.6% reduction from 1080p. The percentage drops are remarkably similar between High and Low presets, indicating that the resolution scaling is independent of the graphical complexity. This suggests that the GPU's fill rate and memory bandwidth are the limiting factors, rather than shader complexity or texture loading.

The Medium settings preset includes min and max FPS data, providing insight into frame time consistency. At 1080p Medium, the average is 78 FPS with a range of 66 to 90 FPS. At 1440p Medium, the average is 51 FPS with a range of 43 to 58 FPS. At 4K Medium, the average drops to 27 FPS with a range of 23 to 31 FPS. The consistent spread of roughly 8-12 FPS between min and max across resolutions indicates stable frame pacing, even as the average frame rate declines. The data shows that the limiting component is the GPU, as the CPU's performance would not degrade linearly with resolution in such a predictable manner.

How This Combo Ranks

The Intel Core Ultra 5 125H combined with the AMD Radeon 880M ranks 2,858 out of 2,930 tested combos in Doom. This places the combo in the bottom 2.5% of all tested configurations, reflecting the integrated GPU's limited gaming capability. The CPU itself is well-regarded, sitting in the 79th percentile of all CPUs with an average benchmark score of 27,507. However, the GPU's 43rd percentile standing and average score of 8,436 drags the overall gaming performance down significantly.

The rank disparity between the CPU and GPU components is stark. The CPU's nearest rivals include the AMD Ryzen 7 5800, Intel Core i5-12600K, and AMD Ryzen 7 5700X, all of which are desktop parts with similar average scores. Yet, in a gaming scenario like Doom, the GPU's role is far more critical. The GPU's nearest rivals are older discrete mobile parts like the NVIDIA GeForce GTX 675MX and AMD Radeon HD 8870M, which are also considered low-performance by modern standards. The combo's ranking suggests that for Doom, the GPU is the definitive bottleneck, and the CPU's strong performance cannot compensate for the GPU's limitations. This is why the combo ranks so low despite having a competent processor.

Settings Recommendations

Based on the measured FPS data, the optimal settings preset depends on the user's performance target. For 1080p, the Low preset delivers 90 FPS, which is the smoothest experience measured. The Medium preset at 1080p also provides a playable 78 FPS average, with a min of 66 FPS, which is acceptable for fast-paced action. High settings at 1080p drop to 66 FPS, which remains playable but with less headroom. Ultra at 1080p yields 54 FPS, which may be acceptable for those prioritizing visual fidelity over frame rate.

At 1440p, the Low preset is the only option that maintains a comfortable frame rate, averaging 58 FPS. Medium at 1440p averages 51 FPS, which is borderline playable, while High drops to 43 FPS and Ultra to 35 FPS. For 4K, no preset achieves a playable frame rate; the highest is Low at 31 FPS, which is below the typical 30 FPS minimum for smooth gameplay but may be tolerable for slower-paced interactions. The data shows that the best experience for this combo is 1080p with Medium or Low settings, balancing visual quality with frame rate. The Medium preset at 1080p offers a 78 FPS average with a narrow min-max range, indicating stable performance, making it the recommended choice for most users. For those who prioritize frame rate above all, Low at 1080p is the clear winner at 90 FPS.

Measured FPS Breakdown

At 3840x2160 (4K), the measured average FPS values are as follows: Low settings achieve 31 FPS, Medium settings achieve 27 FPS with a min of 23 and max of 31, High settings achieve 23 FPS, and Ultra settings achieve 19 FPS. None of these configurations reach a smooth 60 FPS, and even the best-case Low setting falls below the 30 FPS threshold that many consider the minimum for playable frame rates. The progression from Low to Ultra shows a 12 FPS drop, from 31 to 19, which is a 38.7% decrease in performance.

At 2560x1440 (1440p), the results improve but still fall short of ideal. Low settings average 58 FPS, Medium averages 51 FPS with a min of 43 and max of 58, High averages 43 FPS, and Ultra averages 35 FPS. The Low preset is the only one that approaches 60 FPS, while Ultra dips below 40 FPS. This resolution is playable at Low and Medium, but High and Ultra require compromises in frame smoothness.

At 1920x1080 (1080p), the combo shows its best performance. Low settings average 90 FPS, Medium averages 78 FPS with a min of 66 and max of 90, High averages 66 FPS, and Ultra averages 54 FPS. All presets except Ultra maintain an average above 60 FPS, and even Ultra is within striking distance. The data shows that 1080p is the only resolution where this combo can deliver a consistently smooth experience across multiple presets. The Medium preset's min of 66 FPS ensures that frame drops are minimal, while the Low preset's 90 FPS average provides a comfortable margin for competitive play.

GPU Role

The AMD Radeon 880M is an integrated graphics processor based on the RDNA 3.5 architecture, manufactured on TSMC's 4 nm process. It features 768 shading units, 48 texture mapping units, and 16 raster operation units, along with 12 ray tracing cores. The GPU has a base clock of 400 MHz and a boost clock of 2900 MHz, delivering a peak FP32 performance of 4.454 TFLOPS. Its memory is system-shared, meaning the bandwidth and capacity depend entirely on the host system's RAM configuration, which is a significant limitation for gaming.

In Doom, the GPU's role is overwhelmingly dominant in determining performance. The measured frame rates across all resolutions and settings show a consistent pattern of decline that aligns with the GPU's pixel throughput capabilities. At 1080p Low, the GPU produces 90 FPS, but at 4K High, it drops to 23 FPS. This scaling is directly attributable to the GPU's fill rate and memory bandwidth constraints, not the CPU. The GPU's benchmark scores reinforce this interpretation: it scores 7,615 in PassMark G3D and 4,454 TFLOPS in FP32, placing it in the 43rd percentile of all GPUs. Its nearest rivals include the NVIDIA GeForce GTX 675MX and AMD Radeon HD 8870M, both of which are older discrete parts, indicating that the 880M's performance is comparable to entry-level discrete GPUs from a decade ago but far below modern integrated or discrete solutions.

The GPU's 16 ROPs and 48 TMUs are modest numbers, and its system-shared memory architecture means that the game must share bandwidth with the CPU, which can cause stuttering in memory-intensive scenes. The boost clock of 2900 MHz is high for an iGPU, helping to mitigate some of the raw throughput limitations, but the 4.454 TFLOPS FP32 figure caps the overall computational ceiling. For Doom, the GPU is the clear bottleneck, as the CPU's 79th percentile performance is more than sufficient to handle the game's logic. The data shows that any attempts to improve frame rates in Doom would require reducing the GPU's workload, either by lowering resolution or settings, as the CPU has no headroom to spare in this configuration.