Doom

The Intel Core i5-11400F paired with the NVIDIA GeForce RTX 3070 Ti delivers a compelling 1080p experience in Doom, but the data reveals a clear shift in performance bottlenecks as resolution climbs. At 1920x1080 with Low settings, the combo produces 269.4 FPS average, which drops to 198.2 FPS at High settings and 165.6 FPS at Ultra. This spread of 103.8 FPS between Low and Ultra at 1080p indicates that the GPU is still the primary driver of performance, though the CPU’s 6 cores and 12 threads are feeding the pipeline effectively. Moving to 2560x1440, the averages fall to 173.9 FPS on Low, 154.2 FPS on Medium, 128.8 FPS on High, and 106.9 FPS on Ultra. The gap between Low and Ultra narrows to 67 FPS, suggesting the graphics card is becoming more dominant as pixel count rises. At 3840x2160, the pattern continues: 92.4 FPS on Low, 82.3 FPS on Medium, 73.2 FPS on High, and 59.1 FPS on Ultra. The difference between Low and Ultra at 4K shrinks to 33.3 FPS, a sign that the RTX 3070 Ti’s 8 GB of GDDR6X memory and 608.3 GB/s bandwidth are now the limiting factors. The data shows that 4K Ultra pushes the GPU to its edge, with the average dipping below 60 FPS, while 1080p Ultra remains comfortably above 165 FPS, leaving headroom for higher refresh rates.

Resolution Scaling

The measured FPS data for Doom illustrates a textbook case of GPU-bound scaling. From 1080p Low to 4K Low, the average frame rate drops from 269.4 FPS to 92.4 FPS, a reduction of 177 FPS or roughly 65.7%. This steep decline indicates that the RTX 3070 Ti’s rendering throughput, measured at 21.75 TFLOPS FP32, is the dominant constraint at higher resolutions. The transition from 1080p High to 1440p High sees a 69.4 FPS drop (198.2 to 128.8), while 1440p High to 4K High drops another 55.6 FPS (128.8 to 73.2). Each resolution step imposes a consistent penalty, which points to a stable GPU pipeline rather than any sudden CPU stall. The 4K Ultra result of 59.1 FPS is particularly telling: it sits just below the 60 FPS threshold, meaning the card’s 96 ROPs and 169.9 GPixel/s pixel rate are saturated when combined with Ultra settings. Conversely, the 1080p Ultra score of 165.6 FPS shows that the i5-11400F, with its 4.40 GHz boost clock, can keep up with the GPU’s demands at lower resolutions. The data suggests that for competitive play at 1080p, users can expect a wide range of settings with minimal CPU interference, but at 4K, the GPU becomes the sole arbiter of performance.

GPU Role

The NVIDIA GeForce RTX 3070 Ti is the star of this combo, and its specifications explain the measured FPS patterns. The card features 8 GB of GDDR6X memory on a 256-bit bus, delivering 608.3 GB/s of bandwidth. This memory configuration is sufficient for Doom’s textures at 1080p and 1440p, but at 4K Ultra, the 59.1 FPS average suggests the 8 GB capacity or the bandwidth is being taxed. The GPU’s boost clock of 1770 MHz, paired with 6144 shading units, produces 21.75 TFLOPS of FP32 compute, which drives the high frame rates seen at lower resolutions. The card’s 192 TMUs and 339.8 GTexel/s texture rate handle Doom’s fast-paced environments efficiently, as evidenced by the 269.4 FPS at 1080p Low. The RTX 3070 Ti’s 48 RT cores and 192 tensor cores are present but not heavily utilized in this title, given Doom’s 2016 release date. The GPU’s 74th percentile ranking among all GPUs, with an average benchmark score of 30849, places it in the upper tier, but its nearest rivals — the AMD Radeon RX 590 GME at 0.3% higher score, the AMD Radeon RX 6700 at 0.8% lower, and the NVIDIA Quadro M5000 at 0.9% lower — show that it sits in a crowded performance band. The 4K results, where Ultra settings yield 59.1 FPS and High yields 73.2 FPS, indicate that users should dial back settings to maintain smooth gameplay at that resolution.

CPU Role

The Intel Core i5-11400F provides the computational foundation for this combo, and its characteristics align with the observed performance. With 6 cores and 12 threads, the CPU offers a base clock of 2.60 GHz and a boost clock of 4.40 GHz, which is adequate for Doom’s single-threaded engine. The 12 MB of shared L3 cache and 80 KB L1 cache per core help reduce memory latency, which is critical for maintaining high frame rates. The CPU’s 3DMark scores — 868 single-thread, 3171 for 4 threads, and 5652 for max threads — show a balanced scaling that matches Doom’s low thread count demands. In Cinebench R23, the multicore score of 14372 and single-core of 2029 indicate a solid mid-range performer. The CPU’s 75th percentile ranking among all CPUs, with an average benchmark score of 17181, places it near rivals like the AMD Ryzen 7 5700U (0% deltaPct) and Intel Core i7-1260P (0.2% lower). The data shows that the i5-11400F does not bottleneck the RTX 3070 Ti at 1080p, as the 269.4 FPS Low result is far from any CPU ceiling. However, at 4K, the CPU’s role diminishes further, since the GPU is the limiting factor. The CPU’s 65 W TDP and 14 nm process node are modest, but they deliver sufficient performance for this title without generating excessive heat. The memory bandwidth of 51.2 GB/s for DDR4 dual-channel is not a constraint here, as Doom’s engine benefits more from the GPU’s 608.3 GB/s.

How This Combo Ranks

In the comprehensive database of tested combos, this pairing of the Intel Core i5-11400F and NVIDIA GeForce RTX 3070 Ti achieves a rank of 667 out of 1681 combinations. This places it in the upper 40th percentile of all tested systems, which is a strong showing given the CPU’s mid-range status. The GPU’s high-end positioning — 74th percentile — boosts the combo’s overall standing, while the CPU’s 75th percentile ensures no significant weak link. The rank of 667 indicates that many combos with higher-end CPUs or newer GPUs outperform it, but it also means this setup beats the majority of tested configurations. The data suggests that the combo is well-balanced for 1440p gaming, where it produces 128.8 FPS at High settings, which is a smooth experience for most monitors. At 1080p, the combo ranks among the top performers for its class, with frame rates exceeding 198 FPS at High settings. The 4K Ultra result of 59.1 FPS is the only area where the combo falls short of a high-refresh target, but it remains playable. Relative to the GPU’s nearest rivals, the RTX 3070 Ti’s average score of 30849 is 0.3% below the RX 590 GME and 0.8% above the RX 6700, meaning the combo’s rank is primarily driven by the GPU’s raw power rather than the CPU’s contribution.

FAQ

Q: What is the highest average FPS this combo achieves in Doom?

A: The highest measured average FPS is 269.4 at 1920x1080 with Low settings. At Ultra settings, the average drops to 165.6 FPS at the same resolution.

Q: How does the combo perform at 4K Ultra settings?

A: At 3840x2160 with Ultra settings, the combo produces an average of 59.1 FPS. This is the lowest measured result, falling just below the 60 FPS target for smooth gameplay.

Q: Is the CPU or GPU the bottleneck at 1080p?

A: The data shows the GPU is the primary constraint at 1080p, as the average FPS drops from 269.4 on Low to 165.6 on Ultra, a 103.8 FPS difference. The i5-11400F’s 4.40 GHz boost clock is sufficient to feed the RTX 3070 Ti at this resolution.

Q: What are the CPU’s 3DMark single-thread and max-thread scores?

A: The Intel Core i5-11400F scores 868 in 3DMark single-thread and 5652 in 3DMark max-threads. These scores reflect its 6-core, 12-thread design with a 4.40 GHz boost clock.

Q: How does the GPU’s memory bandwidth affect 4K performance?

A: The RTX 3070 Ti’s 608.3 GB/s bandwidth and 8 GB GDDR6X memory are likely the limiting factors at 4K Ultra, where the average FPS falls to 59.1. At 4K Low, the average rises to 92.4 FPS, indicating the GPU has headroom when memory pressure is reduced.

Q: What is the combo’s rank among all tested configurations?

A: The combo ranks 667 out of 1681 tested combinations in Doom. This places it in the upper percentile, driven by the GPU’s 74th percentile ranking and the CPU’s 75th percentile ranking.