Intel Core i5-14400F vs Intel Core i9-11900 Comparison

The Intel Core i5-14400F and Intel Core i9-11900 are two desktop processors separated by three generations of Intel architecture, yet their average benchmark scores are nearly identical. The i5-14400F posts an average benchmark score of 32279, while the i9-11900 scores 32226, a difference of just 0.2%. This near-parity in overall performance masks a clear split in workload-specific strengths: the newer i5-14400F dominates in 15 of the 17 head-to-head comparisons, while the older i9-11900 wins only in integer math and random string sorting. The data suggests a generational shift where architectural efficiency and core count overcome raw clock speed advantages.

Where Each One Wins

The Intel Core i5-14400F establishes its dominance across nearly every benchmark category, with its largest advantages appearing in physics simulation and prime number finding. The i5-14400F scores 1523 in PassMark physics, a 55.9% lead over the i9-11900’s 977, and it finds prime numbers 36.5% faster with scores of 86 versus 63. These results indicate the i5-14400F’s hybrid architecture—combining performance and efficiency cores—excels in workloads that benefit from parallel execution and rapid integer operations.

The Core i9-11900’s wins are narrow but telling. It edges out the i5-14400F in PassMark integer math with a score of 83893 versus 81524, a 2.8% margin, and in random string sorting with 33054 versus 32680, a 1.1% margin. These are single-threaded or lightly-threaded tasks where the i9-11900’s higher boost clock of 5.20 GHz provides a tangible advantage. However, these two victories represent a small fraction of the overall benchmark suite, and in most productivity and content-creation tasks, the i5-14400F is clearly superior.

Architecture Differences

The two processors represent distinct design philosophies. The i5-14400F is built on Intel’s 10 nm process node with the Raptor Lake architecture, while the i9-11900 uses the older 14 nm process with Rocket Lake. This process difference is reflected in die size: the i5-14400F measures 215 mm², compared to 276 mm² for the i9-11900, meaning the newer chip packs more functionality into a smaller physical area.

Core configuration is a major differentiator. The i5-14400F has 10 cores and 16 threads, while the i9-11900 has 8 cores and 16 threads. The i5-14400F’s extra two cores come with a larger cache hierarchy: 80 KB of L1 per core, 1.25 MB of L2 per core, and 20 MB of shared L3 cache. The i9-11900 offers 64 KB of L1 per core, 512 KB of L2 per core, and 16 MB of shared L3. Despite having fewer cores, the i9-11900 achieves a higher boost clock of 5.20 GHz versus 4.70 GHz for the i5-14400F, and both share the same 65 W TDP.

Memory support also diverges. The i5-14400F supports both DDR4 and DDR5 memory in a dual-channel configuration, while the i9-11900 is limited to DDR4. The i9-11900 does list a memory bandwidth of 51.2 GB/s, whereas the i5-14400F’s bandwidth is not specified. The i5-14400F also supports ECC memory, a feature absent from the i9-11900. PCIe connectivity favors the i9-11900 with 20 Gen 4 lanes, while the i5-14400F offers 16 Gen 5 lanes. The i9-11900 includes integrated UHD Graphics 750, while the i5-14400F has no integrated graphics. The i5-14400F uses Socket 1700, while the i9-11900 uses Socket 1200, and the i9-11900 is marked as end-of-life while the i5-14400F remains active.

Head-to-Head Benchmarks

The Cinebench results show consistent 14% leads for the i5-14400F across multiple render tests. In Cinebench R15 multicore, the i5-14400F scores 2181 versus 1913, and in single-core it scores 307 versus 270. The pattern holds in Cinebench R20 (9090 vs 7973 multicore, 1283 vs 1125 single-core) and Cinebench R23 (21645 vs 18985 multicore, 3055 vs 2680 single-core). This uniformity suggests the i5-14400F’s architectural improvements benefit both multi-threaded and single-threaded rendering workloads equally.

PassMark results paint a more varied picture. The i5-14400F wins data compression by 10.6% (315521 vs 285159) and data encryption by 21.6% (16949 vs 13942). Floating-point math shows a 25.3% advantage for the i5-14400F (61319 vs 48948), while extended instructions are nearly tied at 1.4% (19937 vs 19654). The multithread score favors the i5-14400F by 13.4% (25470 vs 22456), and single-thread performance shows a 9.7% lead (3701 vs 3373). The i9-11900’s wins in integer math and random string sorting are modest at 2.8% and 1.1% respectively, indicating these are isolated strengths rather than a systemic advantage.

The Verdict

The data clearly favors the Intel Core i5-14400F for nearly all use cases. Its 14% advantage in every Cinebench test suggests superior rendering performance for content creation, while its 55.9% lead in physics and 36.5% lead in prime number finding indicate strong computational throughput. The i5-14400F’s support for both DDR4 and DDR5 memory, ECC capability, and smaller die size make it a more versatile and future-proof option.

The Intel Core i9-11900 retains relevance only for specific workloads that reward its 5.20 GHz boost clock, such as integer math and random string sorting, where it holds narrow leads. Its higher launch MSRP of $439 compared to the i5-14400F’s $196 launch MSRP further underscores the generational efficiency gain. Users building new systems should favor the i5-14400F unless their workloads exclusively prioritize the i9-11900’s niche strengths. The i9-11900’s end-of-life status and older 14 nm process also suggest limited long-term viability.

FAQ

Q: Which processor has more cores?

A: The Intel Core i5-14400F has 10 cores and 16 threads, while the Intel Core i9-11900 has 8 cores and 16 threads.

Q: How do the processors compare in single-core performance?

A: The i5-14400F leads in single-core performance across all tested benchmarks, with a 9.7% advantage in PassMark single-thread (3701 vs 3373) and a 14% lead in Cinebench R23 single-core (3055 vs 2680).

Q: Does the i9-11900 win any benchmarks?

A: Yes, the i9-11900 wins two benchmarks: PassMark integer math (83893 vs 81524, a 2.8% lead) and PassMark random string sorting (33054 vs 32680, a 1.1% lead).

Q: What are the memory support differences?

A: The i5-14400F supports both DDR4 and DDR5 memory, while the i9-11900 is limited to DDR4. Both use dual-channel memory buses, and only the i5-14400F supports ECC memory.

Q: Which processor has a higher boost clock?

A: The i9-11900 has a higher boost clock of 5.20 GHz, compared to 4.70 GHz for the i5-14400F. Both have the same base clock of 2.50 GHz.

Q: Are these processors comparable in overall performance?

A: Yes, their average benchmark scores are nearly identical, with the i5-14400F at 32279 and the i9-11900 at 32226, a difference of only 0.2%. However, the i5-14400F wins 15 of 17 individual benchmarks.

Specification Differences

| Specification | Intel Core i5-14400F | Intel Core i9-11900 |

|----------------|----------------------|----------------------|

| Cores | 10 | 8 |

| Threads | 16 | 16 |

| Boost Clock | 4.70 GHz | 5.20 GHz |

| TDP | 65 W | 65 W |

| Socket | Intel Socket 1700 | Intel Socket 1200 |

| Architecture | Raptor Lake | Rocket Lake |

| Process Node | 10 nm | 14 nm |

| Die Size | 215 mm² | 276 mm² |

| L1 Cache | 80 KB (per core) | 64 KB (per core) |

| L2 Cache | 1.25 MB (per core) | 512 KB (per core) |

| L3 Cache | 20 MB (shared) | 16 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR4 |

| Memory Bandwidth | Not specified | 51.2 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 5, 16 Lanes | Gen 4, 20 Lanes |

| Integrated Graphics | N/A | UHD Graphics 750 |

| Production Status | Active | End-of-life |

| Launch MSRP | $196 | $439 |