Doom

FAQ

Q: What is the combo's rank among all tested CPU/GPU combinations for Doom?

A: The Intel Core i5-13400F paired with the AMD Radeon RX 6650 XT ranks 1119th out of 1681 tested combos, placing it in the lower-middle portion of the database for this title.

Q: How does the CPU compare to its nearest rivals in average benchmark score?

A: The Core i5-13400F posts an average benchmark score of 25236, which is 0.1% above the Intel Core i7-13620H (25201) and 0.5% above the AMD EPYC 9474F (25103). It trails the AMD Ryzen 5 5600X3D by 0.5% (25365).

Q: What is the GPU's percentile ranking among all GPUs?

A: The Radeon RX 6650 XT sits at the 72nd percentile of all GPUs, with an average benchmark score of 29024. Its nearest rival, the AMD Radeon RX 6800M, scores 29011, a negligible 0% difference.

Q: What is the best 1080p result for this combo in Doom?

A: At 1920x1080 with Low settings, the combo achieves 198.4 average FPS, which is the highest measured result across all tested configurations. Ultra settings at the same resolution drop this to 119.7 FPS.

Q: Does the combo maintain playable frame rates at 4K?

A: At 3840x2160, average FPS ranges from 44.0 at Ultra to 69.7 at Low settings. Only the Ultra preset falls below the commonly cited 60 FPS threshold; Medium (61.1) and High (51.0) sit near or below it.

Q: How much does the CPU's single-thread performance factor into these results?

A: The CPU's 3DMark single-thread score is 960, while its 16-thread score reaches 7314. In a game like Doom, which relies heavily on per-core performance, the single-thread figure is a meaningful indicator, though the measured FPS data shows the GPU becomes the primary constraint at higher resolutions.

GPU Role

The AMD Radeon RX 6650 XT is built on the RDNA 2.0 architecture with a Navi 23 chip fabricated on a 7 nm process at TSMC. It carries 8 GB of GDDR6 memory on a 128-bit bus, yielding a bandwidth of 280.3 GB/s. The GPU's base clock is 2055 MHz, with a game clock of 2410 MHz and a boost clock of 2635 MHz. These clocks sit high enough that the card can push substantial pixel throughput — 168.6 GPixel/s — which directly benefits Doom's fast-paced rendering demands.

The GPU's 2048 shading units and 64 ROPs are the key drivers for fill-rate-limited scenes. In Doom, the measured results show that the GPU's memory subsystem and compute throughput become the limiting factor as resolution climbs. At 1920x1080 Low, the combo reaches 198.4 FPS, but this falls to 119.7 FPS at Ultra — a 39.7% reduction that aligns with the GPU's pixel-rate and texture-rate ceilings (337.3 GTexel/s). The card's 32 ray accelerators are present, but Doom's rasterization workload does not heavily exercise them, so the traditional shading units carry the load.

The GPU's 72nd percentile standing among all GPUs, with an average benchmark score of 29024, places it within a tight cluster: the RX 6800M scores 29011 (0% delta), the RX 470 scores 28996 (0.1% higher), and the Intel Arc A370M scores 29175 (0.5% lower). This indicates the RX 6650 XT delivers consistent performance relative to its peers, though the measured game data reveals that it cannot maintain 60 FPS at 4K Ultra — a clear sign of the GPU's architectural limits under heavy pixel shading loads.

How This Combo Ranks

The combo's rank of 1119 out of 1681 tested combinations places it in the 66.5th percentile overall — meaning roughly two-thirds of tested combos outperform it in Doom. This is a modest standing, driven primarily by the GPU rather than the CPU. The Core i5-13400F is a 10-core, 16-thread Raptor Lake-S part with a boost clock of 4.60 GHz and an 82nd percentile CPU ranking. Its average benchmark score of 25236 is nearly identical to the Intel Core i7-13620H (25201, 0.1% delta) and the AMD Ryzen 5 5600X3D (25365, -0.5% delta), indicating the CPU is not a weak link.

The bottleneck becomes evident when examining the measured FPS across resolutions. At 1080p Low, the combo delivers 198.4 FPS — a strong result that suggests the CPU can feed the GPU adequately. However, the GPU's 8 GB VRAM and 128-bit memory bus limit 4K performance, where the combo drops to 44 FPS at Ultra. This rank reflects a pairing where the CPU has headroom, but the GPU's bandwidth and compute resources cap the overall experience.

Compared to other combos in the database, the 1119th rank is not a reflection of the CPU's capability — the i5-13400F scores within 0.5% of its nearest rivals — but rather the RX 6650 XT's position as a mid-range card. The GPU's percentile (72) is lower than the CPU's (82), confirming that the graphics card is the primary constraint in this pairing.

Measured FPS Breakdown

At 1920x1080, the combo shows a clear scaling pattern across presets. Low settings yield 198.4 FPS, Medium drops to 173.7 FPS, High produces 144.4 FPS, and Ultra settles at 119.7 FPS. The step from Low to Medium is a 12.4% reduction, while the Medium-to-High step is a larger 16.9% drop. The High-to-Ultra transition is another 17.1% decrease. These numbers indicate that each preset tier adds meaningful shading and texture work, and the GPU responds with proportionally lower frame rates.

Moving to 2560x1440, the same pattern persists but with steeper declines. Low delivers 126.8 FPS, Medium 114.1 FPS, High 92.4 FPS, and Ultra 76.5 FPS. The gap between Low and Ultra at 1440p is 39.7%, compared to 39.7% at 1080p — a consistent percentage reduction, suggesting the GPU's compute scaling is linear across these settings. However, the absolute frame rates at 1440p are roughly 64% of their 1080p counterparts for each preset, indicating the resolution increase demands significantly more pixel throughput.

At 3840x2160, the combo struggles to maintain high refresh rates. Low produces 69.7 FPS, Medium 61.1 FPS, High 51.0 FPS, and Ultra 44.0 FPS. The Low-to-Ultra drop is 36.9%, which is slightly smaller than at lower resolutions — a sign that the GPU is becoming saturated and the additional settings have diminishing returns. Only Low and Medium exceed 60 FPS, and even those are marginal. The data shows that 4K gaming with this combo requires reduced settings to achieve smooth frame pacing.

Resolution Scaling

The FPS degradation from 1080p to 4K is steep and consistent. At Low settings, the transition from 1920x1080 (198.4 FPS) to 2560x1440 (126.8 FPS) is a 36.1% reduction, and further to 3840x2160 (69.7 FPS) is another 45.0% drop. This pattern is similar across all presets: Medium falls from 173.7 to 114.1 (34.3%) then to 61.1 (46.4%), High from 144.4 to 92.4 (36.0%) then to 51.0 (44.8%), and Ultra from 119.7 to 76.5 (36.1%) then to 44.0 (42.5%).

The consistent ~36% drop from 1080p to 1440p across all settings indicates the GPU's pixel-processing capacity is the limiting factor. The 1440p-to-4K step, which nearly doubles the pixel count, produces a further ~45% reduction, again pointing to the GPU's 280.3 GB/s memory bandwidth and 168.6 GPixel/s pixel rate as the ceiling. The CPU's role becomes less significant as resolution rises: at 1080p Low, the combo can exceed 190 FPS, but the GPU cannot sustain that throughput at higher resolutions.

The data also shows that the gap between Low and Ultra narrows as resolution increases. At 1080p, the difference is 78.7 FPS (198.4 vs 119.7); at 4K, it shrinks to 25.7 FPS (69.7 vs 44.0). This compression suggests that at 4K, the GPU is so heavily loaded that the difference between preset tiers has less impact on the final frame rate. For this combo, the limiting component is unambiguously the GPU — the CPU's 82nd percentile ranking and strong multithreaded scores cannot compensate for the RX 6650 XT's mid-range memory interface and compute resources.