Doom

The Intel Core i5-14600KF paired with the NVIDIA GeForce RTX 3080 Ti delivers a high-refresh-rate experience in Doom, with measured average frame rates ranging from 312.6 FPS at 1080p Low to 64.8 FPS at 4K Ultra. The combination ranks 434th out of 1,681 tested combos, reflecting a strong balance of CPU and GPU capabilities. Benchmark data shows that this pairing sustains triple-digit frame rates at 1440p across most settings, while 4K performance remains playable even at Ultra quality.

CPU Role

The Intel Core i5-14600KF is a 14-core, 20-thread processor based on the Raptor Lake architecture, with a base clock of 3.50 GHz and a boost clock of 5.30 GHz. It features 24 MB of shared L3 cache and supports DDR4 and DDR5 memory. In synthetic benchmarks, the CPU achieves a Cinebench R23 multi-core score of 32,889 and a single-core score of 4,643, placing it in the 93rd percentile of all CPUs. Its average benchmark score of 49,367 is 0.4% higher than the Intel Core i5-14600K, 0.5% lower than the AMD EPYC 4345P, and 0.6% higher than the AMD Ryzen 9 5950X. The CPU’s launch MSRP is $294.

In Doom, the CPU’s high single-thread performance is critical for maintaining high frame rates, especially at lower resolutions where the GPU is not fully saturated. At 1080p Low, the combo reaches 312.6 FPS, indicating that the CPU can feed the GPU well beyond typical display refresh rates. Even at 1080p Ultra, the average FPS is 187.9, which still exceeds 144 Hz. The CPU’s 14 cores and 20 threads provide ample headroom for background tasks and modern game engines, though Doom’s workload is primarily single-threaded. The data shows that the i5-14600KF does not become a bottleneck at any tested resolution or setting, as the frame rate scaling from 1080p to 4K follows a pattern consistent with GPU limitation rather than CPU limitation.

GPU Role

The NVIDIA GeForce RTX 3080 Ti is built on the Ampere architecture with a GA102 chip, featuring 12 GB of GDDR6X memory on a 384-bit bus, delivering 912.4 GB/s of bandwidth. Its base clock is 1365 MHz, with a boost clock of 1665 MHz, and memory runs at 19 Gbps effective. The GPU’s benchmark scores include a 3DMark Steel Nomad DX12 result of 5,077, a Geekbench OpenCL score of 191,309, and a Passmark G3D score of 26,896. It sits in the 83rd percentile of all GPUs, with an average benchmark score of 41,224. Compared to its nearest rivals, the RTX 3080 Ti trails the RTX 3090 by 0.5%, the AMD Radeon Pro 5300 by 0.9%, and the RTX 5070 by 1.1%, while leading the Tesla M40 by 1.6%. The GPU’s launch MSRP is $1,199.

In Doom, the RTX 3080 Ti’s memory bandwidth and 12 GB VRAM are more than sufficient for the game’s textures and geometry. At 4K Ultra, the combo averages 64.8 FPS, which is smooth for a single-player FPS. The GPU’s performance scales predictably with resolution: at 1440p Ultra, the average is 124.9 FPS, and at 1080p Ultra, it reaches 187.9 FPS. The GPU’s high pixel rate (186.5 GPixel/s) and texture rate (532.8 GTexel/s) contribute to its ability to handle high resolutions without significant frame drops. The data indicates that the RTX 3080 Ti is the primary driver of frame rate differences across settings, as the CPU maintains consistent performance.

Resolution Scaling

The measured FPS data shows a clear drop as resolution increases from 1080p to 4K, across all quality settings. At Low settings, the average FPS falls from 312.6 at 1080p to 206.0 at 1440p, and further to 109.4 at 4K. At Medium, the values are 272.2, 176.6, and 93.6 respectively. High settings yield 234.1, 151.4, and 79.5. Ultra settings produce 187.9, 124.9, and 64.8. The relative drop from 1080p to 4K is substantial in every case, with the largest absolute decline occurring at Low settings (a reduction of 203.2 FPS) and the smallest at Ultra (a reduction of 123.1 FPS). This pattern indicates that the GPU becomes the limiting component as resolution increases, because the CPU’s frame generation capability remains constant while the GPU’s workload grows with pixel count.

The scaling also reveals that the combo is not CPU-bound at any resolution. If the CPU were the bottleneck, the FPS would remain similar across resolutions, but the data shows a consistent decline. For example, at High settings, the FPS drops by 82.7 from 1080p to 1440p, and by another 71.9 from 1440p to 4K. This monotonic decrease is characteristic of a GPU-limited scenario. The fact that the FPS at 4K Low (109.4) is still higher than the FPS at 1080p Ultra (187.9) is expected, as lower settings reduce GPU load. Overall, the resolution scaling confirms that the RTX 3080 Ti is the performance limiter at 4K, while the i5-14600KF provides ample headroom for high refresh rates at 1080p and 1440p.

How This Combo Ranks

The combo ranks 434th out of 1,681 tested combinations in Doom, placing it in the upper portion of the database. This rank is consistent with the individual component percentiles: the CPU is in the 93rd percentile and the GPU is in the 83rd percentile. The combination’s rank suggests that it outperforms the majority of tested systems, though it is not among the top-tier configurations. The CPU’s strong single-thread performance and the GPU’s high memory bandwidth likely contribute to the combo’s ability to maintain high frame rates across resolutions. The rank also reflects the balance between the two components; neither is severely mismatched, as evidenced by the smooth scaling from 1080p to 4K.

Compared to other combos, the i5-14600KF + RTX 3080 Ti sits above the median, but it is not in the top 100. The data shows that the combo’s performance is limited primarily by the GPU at higher resolutions, so systems with more powerful GPUs (such as those with higher average benchmark scores) would rank higher. Conversely, the CPU’s high percentile ensures that the combo does not suffer from CPU bottlenecks, which is a common issue in lower-end pairings. The rank of 434 out of 1,681 indicates that this configuration is well-suited for high-refresh-rate gaming at 1440p and solid 4K performance, but it is not designed for extreme 4K ultra settings with ray tracing or other demanding features.

FAQ

Q: What is the average FPS at 1080p Ultra for this combo?

A: The measured average FPS at 1080p Ultra is 187.9.

Q: How does the Intel Core i5-14600KF compare to the Intel Core i5-14600K in average benchmark score?

A: The i5-14600KF has an average benchmark score of 49,367, which is 0.4% higher than the i5-14600K’s score of 49,166.

Q: What is the memory bandwidth of the NVIDIA GeForce RTX 3080 Ti?

A: The RTX 3080 Ti has a memory bandwidth of 912.4 GB/s.

Q: What is the combo’s rank in Doom?

A: The combo ranks 434th out of 1,681 tested combinations.

Q: What is the average FPS at 4K Low settings?

A: The average FPS at 4K Low is 109.4.

Q: What is the boost clock of the Intel Core i5-14600KF?

A: The boost clock is 5.30 GHz.