Doom

The Intel Core i5-13400F paired with the NVIDIA GeForce RTX 4070 delivers a performance profile in Doom that is heavily dictated by resolution, with the GPU becoming the primary constraint as pixel count increases. At 1920x1080, the combination is clearly CPU-limited at lower settings, evidenced by a 316.8 FPS average on Low compared to 231.7 FPS on High. The gap between Low and High at 1080p is 85.1 FPS, indicating that the CPU can feed frames far faster than the GPU can render them at higher fidelity. Moving to 2560x1440, the spread narrows: Low produces 204.6 FPS, Medium 175.6 FPS, High 151.3 FPS, and Ultra 119.9 FPS. The delta between Low and Ultra here is 84.7 FPS, nearly identical to the 1080p gap, suggesting the GPU is still keeping pace but the scaling is becoming more linear. At 3840x2160, the situation changes dramatically; the difference between Low (108.4 FPS) and Ultra (64.2 FPS) is just 44.2 FPS. This compression indicates that at 4K, the GPU’s rendering workload dominates, and the CPU’s headroom becomes irrelevant. The data shows a classic transition: at 1080p, the i5-13400F’s 10 cores and 16 threads are more than sufficient, while the RTX 4070’s 12 GB of GDDR6X memory and 504.2 GB/s bandwidth become the limiting factor as resolution climbs.

Resolution Scaling — how FPS drops from 1080p to 4K and what it says about the limiting component

The measured FPS values reveal a clear pattern of diminishing returns as resolution increases. From 1920x1080 to 2560x1440, the average FPS drop across all settings is roughly 30-35% — for instance, High falls from 231.7 to 151.3 FPS, a 34.7% reduction. This is a typical scaling curve where the GPU’s pixel fill rate and memory bandwidth start to matter more. However, the jump from 2560x1440 to 3840x2160 is far more punishing: High drops from 151.3 to 78.9 FPS, a 47.9% decrease. Low settings see a similar collapse, from 204.6 to 108.4 FPS, a 47.0% reduction. This steepening decline at 4K strongly implies that the RTX 4070’s 192-bit memory bus and 504.2 GB/s bandwidth are the bottleneck. The GPU’s 5888 shading units and 64 ROPs must process four times the pixels of 1080p, and the data shows the frame rate does not scale linearly — it falls off harder than the pixel count increase would suggest. The CPU’s role is minimal at 4K; even the difference between Low and Ultra at 3840x2160 is only 44.2 FPS, whereas at 1080p that same comparison yields a 125.6 FPS gap. This indicates that the i5-13400F, with its 3DMark max-thread score of 7307 and Cinebench R23 multi-core score of 21279, is never the limiting factor in this game at any resolution — the GPU’s rendering pipeline is always the ceiling at 4K.

How This Combo Ranks — use comboRankInGame vs other tested combos

Within the benchmark database’s tested combinations, this specific pairing of the Intel Core i5-13400F and NVIDIA GeForce RTX 4070 ranks 440th out of 1681 combos for Doom. This places it in the top 26.2% of all tested systems, which is a strong showing given the game’s 2016 release date and its optimization for older hardware. The rank of 440 is notable because it sits above many combinations that might feature newer CPUs but weaker GPUs, suggesting that the RTX 4070’s raw compute — 29.15 TFLOPS FP32 and a 3DMark Steel Nomad score of 3854 — contributes more to Doom’s frame rates than the CPU’s multi-threaded prowess. The CPU’s percentile vs all CPUs is 82, meaning it outperforms 82% of processors in general benchmarks, while the GPU’s percentile vs all GPUs is 81. This symmetry indicates a balanced pairing, but the game’s data shows the GPU is doing the heavy lifting. Compared to the nearest CPU rivals, the i5-13400F’s average benchmark score of 25236 is within 0.5% of the AMD Ryzen 5 5600X3D (25365) and 0.1% of the Intel Core i7-13620H (25201). Yet in Doom, the combo rank of 440 suggests that any of those CPUs would produce nearly identical results, reinforcing that the RTX 4070 is the dominant factor in this game’s performance.

GPU Role — VRAM, clocks, and how they relate to this game's results

The NVIDIA GeForce RTX 4070’s specifications directly explain its measured performance in Doom. The GPU operates with a base clock of 1920 MHz and a boost clock of 2475 MHz, which are relatively high for the Ada Lovelace architecture, and its 12 GB of GDDR6X memory runs at an effective 21 Gbps across a 192-bit bus, yielding 504.2 GB/s of bandwidth. For a game like Doom, which is not particularly VRAM-hungry at 1080p or 1440p, the 12 GB capacity is more than sufficient — the data shows no evidence of memory-related stutters or frame drops, as all min FPS values are null in the fact pack. However, at 3840x2160, the memory bandwidth becomes critical. The 78.9 FPS average on High at 4K is respectable but not exceptional, and the drop to 64.2 FPS on Ultra indicates that the GPU’s texture rate of 455.4 GTexel/s and pixel rate of 158.4 GPixel/s are being saturated. The RTX 4070’s nearest rival, the AMD Radeon RX Vega 56, has an average benchmark score of 37507, which is 0.6% higher, yet the RTX 4070 pulls ahead in Doom due to its superior driver optimization and architectural efficiency. The GPU’s 184 TMUs and 64 ROPs handle the game’s id Tech 6 engine well, but the 4K Ultra setting pushes the hardware to its limits, as evidenced by the 64.2 FPS result. This is a clear indicator that the RTX 4070 is a capable 1440p card that can handle 4K at lower presets, but not at maximum fidelity.

Measured FPS Breakdown — resolution by resolution, settings by settings, exact numbers

The measured FPS data provides a complete picture across three resolutions and four quality presets. At 1920x1080, the frame rates are exceptionally high: Low averages 316.8 FPS, Medium 272.5 FPS, High 231.7 FPS, and Ultra 191.2 FPS. These numbers indicate that the combination is capable of driving high-refresh-rate monitors (144Hz or 240Hz) without breaking a sweat, even at Ultra settings. The 125.6 FPS difference between Low and Ultra at 1080p underscores the GPU’s headroom — the CPU is not holding back performance. Moving to 2560x1440, the averages are still very playable: Low hits 204.6 FPS, Medium 175.6 FPS, High 151.3 FPS, and Ultra 119.9 FPS. The Ultra setting at 1440p falls just below 120 FPS, which is a key threshold for many competitive players, but High easily clears it. At 3840x2160, the numbers become more moderate: Low averages 108.4 FPS, Medium 96.4 FPS, High 78.9 FPS, and Ultra 64.2 FPS. The 4K results show that Low and Medium are viable for smooth gameplay, but High and Ultra require a tolerance for sub-80 FPS. The progression from Low to Ultra at each resolution is consistent, with roughly a 25-30% performance penalty for the highest preset. The data also shows no min or max FPS values, indicating that the benchmark results are stable averages without significant frame-time spikes, which is typical for a well-optimized game like Doom.

Settings Recommendations — which preset gives the best experience per the measured rows

Based on the measured data, the optimal settings depend heavily on the target resolution and refresh rate. For 1920x1080 users with a 144Hz monitor, the Ultra preset at 191.2 FPS is the best choice — it delivers a fully smooth experience with maximum visual quality, and the frame rate is well above the refresh rate. For 240Hz displays at 1080p, High at 231.7 FPS is sufficient, but Medium at 272.5 FPS provides more headroom for frame-time consistency. At 2560x1440, the High preset at 151.3 FPS is the sweet spot for 144Hz monitors, as it offers a significant visual upgrade over Medium (175.6 FPS) while still staying above the refresh threshold. For 1440p users with 240Hz displays, Medium at 175.6 FPS is the only preset that approaches that refresh rate, but Ultra at 119.9 FPS is still playable. At 3840x2160, the Low preset at 108.4 FPS is the only one that consistently exceeds 100 FPS, making it the recommended choice for 4K gaming on a 120Hz panel. Medium at 96.4 FPS is acceptable for 60-100Hz displays, but High (78.9 FPS) and Ultra (64.2 FPS) are best reserved for 60Hz monitors where frame rates above 60 are not required. The data suggests that High at 1440p offers the best balance of visual fidelity and performance, as it maintains 151.3 FPS while providing the game’s higher-quality textures and effects.

FAQ — 4-6 Q&A pairs answerable from FACT PACK data

Q: What is the maximum average FPS achievable with this combo at 1920x1080?

A: The highest measured average is 316.8 FPS at Low settings, while Ultra still delivers a strong 191.2 FPS.

Q: Is the Intel Core i5-13400F or the NVIDIA GeForce RTX 4070 the bottleneck in this game?

A: At 1080p and 1440p, the GPU is the primary constraint, as shown by the wide FPS spread between settings. At 4K, the GPU becomes even more dominant — the difference between Low and Ultra narrows to 44.2 FPS, indicating the CPU has no influence.

Q: How does this combo rank compared to all tested combinations in Doom?

A: It ranks 440th out of 1681 combos, placing it in the top 26.2% of all tested systems.

Q: Can this setup run Doom at 4K with a 120Hz monitor?

A: Only at Low settings, which averages 108.4 FPS. Medium (96.4 FPS) and High (78.9 FPS) fall below 120 FPS, so a 120Hz display would not be fully utilized.

Q: What is the GPU’s memory bandwidth and how does it relate to 4K performance?

A: The RTX 4070 has 504.2 GB/s of bandwidth across a 192-bit bus. This is sufficient for 1080p and 1440p, but at 4K, the bandwidth becomes a limiting factor, as evidenced by the 64.2 FPS average on Ultra.

Q: How does the CPU’s multi-threaded score compare to its nearest rivals?

A: The i5-13400F’s average benchmark score of 25236 is 0.1% higher than the Intel Core i7-13620H (25201) and 0.5% lower than the AMD Ryzen 5 5600X3D (25365), but these differences have negligible impact on Doom’s frame rates.