Intel Core i5-14401E vs Intel Core Ultra 7 366H Comparison

# Where Each One Wins

The benchmark comparison between the Intel Core i5-14401E and the Intel Core Ultra 7 366H produces a decisive outcome. Across all six head-to-head Cinebench tests, the Core Ultra 7 366H records the higher score. The i5-14401E does not secure a single win in any recorded benchmark category. The database shows zero wins for the desktop part and six wins for the mobile part in the direct comparison.

The Core Ultra 7 366H dominates in both multi-core and single-core workloads. In Cinebench R23 multi-core, it scores 28477 against 18161 for the i5-14401E, a margin of 36.2 percent. The single-core R23 test shows a similar pattern: 4020 versus 2564, also 36.2 percent behind. The consistency of the gap across every Cinebench iteration, from R15 through R23, suggests a fundamental performance advantage rather than a workload-specific quirk.

The i5-14401E holds an advantage only in market positioning and platform characteristics. It is a desktop processor with a 65 watt thermal design power, while the Core Ultra 7 366H is a mobile processor rated at 25 watts. The desktop chip uses the Intel Socket 1700 platform, whereas the mobile chip is soldered to Intel BGA 2540. These differences matter for system builders, but they do not translate into a single benchmark victory for the desktop part.

The percentile data reinforces the gap. The Core Ultra 7 366H ranks in the 87th percentile among all CPUs in the database. The i5-14401E sits in the 60th percentile. The average benchmark score for the mobile part is 41263, while the desktop part averages 5253. That large difference in average score reflects the additional Passmark tests recorded for the Core Ultra 7 366H, which include data compression, encryption, extended instructions, prime number finding, floating point math, integer math, multithread, physics, random string sorting, and single thread tests. The i5-14401E has no Passmark entries in the database.

Architecture Differences

The two processors come from different Intel design eras. The i5-14401E uses the Raptor Lake architecture, specifically the Raptor Lake-R refresh, built on Intel's 10 nm process. It belongs to the Core 14th Gen family, with the generation labeled as Core i5 (Raptor Lake Refresh). The die size is 215 mm².

The Core Ultra 7 366H uses the Panther Lake architecture, built on a 3 nm process, and belongs to the Core Ultra Series 3 family, with the generation labeled as Ultra 7 (Panther Lake-H). The die size is not recorded in the database.

Core counts differ substantially. The i5-14401E has 6 cores and 12 threads, indicating hyper-threading support. The Core Ultra 7 366H has 16 cores and 16 threads, meaning it does not use simultaneous multithreading. Despite having fewer threads than physical cores, the mobile part still outperforms the desktop part in every threaded benchmark.

Cache hierarchies also differ. The i5-14401E has 80 KB of L1 cache per core, 1.25 MB of L2 cache per core, and 20 MB of shared L3 cache. The Core Ultra 7 366H has 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache. The mobile part has larger per-core caches but a smaller shared L3 pool.

The integrated graphics differ as well. The desktop chip uses UHD Graphics 730. The mobile chip uses Intel Xe3 Graphics. Neither part has a recorded graphics benchmark in the database, so the comparison rests on CPU compute results only.

Memory support diverges. The i5-14401E supports DDR4 and DDR5 memory over a dual-channel bus and includes ECC memory support. The Core Ultra 7 366H supports DDR5 and LPDDR5X memory over a dual-channel bus with a recorded memory bandwidth of 115.2 GB/s, but it does not support ECC memory. The desktop part has no recorded memory bandwidth figure.

PCIe connectivity also differs. The i5-14401E provides Gen 5 with 16 lanes from the CPU. The Core Ultra 7 366H provides Gen 5 with 12 lanes from the CPU.

Release timing separates the parts. The i5-14401E has a release date of June 30, 2024. The Core Ultra 7 366H has a release date of January 4, 2026. Neither part has a recorded launch MSRP in the database.

Head-to-Head Benchmarks

The direct comparison covers six Cinebench tests, and the Core Ultra 7 366H wins all six. The margins are remarkably uniform, which makes the analysis straightforward.

In Cinebench R15 multi-core, the Core Ultra 7 366H scores 2870 against 1830 for the i5-14401E. The desktop part trails by 36.2 percent. In R15 single-core, the mobile part scores 405 against 258, again a 36.3 percent deficit for the desktop part.

Cinebench R20 repeats the pattern. Multi-core results show 11960 for the Core Ultra 7 366H and 7627 for the i5-14401E, a 36.2 percent difference. Single-core shows 1688 versus 1076, a 36.3 percent difference.

Cinebench R23 delivers the largest absolute gaps. Multi-core scores are 28477 for the mobile part and 18161 for the desktop part, a 36.2 percent margin. Single-core scores are 4020 versus 2564, a 36.2 percent margin.

The consistency of the deltas, all falling between 36.2 and 36.3 percent, indicates that the performance advantage scales evenly across both single-threaded and multi-threaded workloads. The Core Ultra 7 366H is not merely stronger in parallel tasks; it also delivers a substantial single-core lead. That combination is unusual, as many processors trade off single-core efficiency for multi-core throughput.

The nearest rival data provides additional context. The i5-14401E has an average benchmark score of 5253, placing it near the Intel Xeon E5-2699A v4, which averages 5259 with a delta of negative 0.1 percent. It also sits close to the Intel Core i7-11700B at 5241 with a delta of 0.2 percent, the Intel Core i9-10850K at 5240 with a delta of 0.2 percent, and the Intel Core i5-13400T at 5210 with a delta of 0.8 percent. These rivals are all within one percent of the i5-14401E, confirming that it performs in line with older high-end desktop parts.

The Core Ultra 7 366H has an average benchmark score of 41263, placing it near the Intel Core Ultra 7 356H at 41215 with a delta of 0.1 percent, the AMD Ryzen AI 5 PRO 440 at 41208 with a delta of 0.1 percent, and the Intel Core Ultra X7 358H at 40967 with a delta of 0.7 percent. One rival, the AMD Ryzen 9 5900X, averages 41376 and edges the Core Ultra 7 366H by 0.3 percent. The mobile part thus competes at the level of a desktop Ryzen 9 from the prior generation.

Specification Differences

The specification table shows clear separation between the two parts in nearly every field.

Core count: 6 for the i5-14401E, 16 for the Core Ultra 7 366H. Thread count: 12 versus 16. The desktop part relies on two threads per core, while the mobile part uses one thread per core.

Base clock: 2.50 GHz for the desktop part, 2.00 GHz for the mobile part. Boost clock: 4.70 GHz for the desktop part, 4.80 GHz for the mobile part. The mobile part boosts 0.10 GHz higher despite the lower base clock.

Thermal design power: 65 watts for the desktop part, 25 watts for the mobile part. The mobile part delivers higher benchmark scores while consuming less than half the thermal envelope.

Socket: Intel Socket 1700 for the i5-14401E, Intel BGA 2540 for the Core Ultra 7 366H. The former is a socketed desktop platform; the latter is a ball grid array mobile platform.

Process node: 10 nm for the desktop part, 3 nm for the mobile part. The manufacturing process difference explains much of the efficiency gap.

L1 cache: 80 KB per core for the desktop part, 192 KB per core for the mobile part. L2 cache: 1.25 MB per core versus 2.5 MB per core. L3 cache: 20 MB shared for the desktop part, 18 MB shared for the mobile part.

Memory support: DDR4 and DDR5 for the desktop part; DDR5 and LPDDR5X for the mobile part. ECC memory: supported on the desktop part, not supported on the mobile part. Memory bandwidth: not recorded for the desktop part, 115.2 GB/s for the mobile part.

PCIe: Gen 5 with 16 lanes for the desktop part, Gen 5 with 12 lanes for the mobile part.

Integrated graphics: UHD Graphics 730 for the desktop part, Intel Xe3 Graphics for the mobile part.

Market segment: Desktop for the i5-14401E, Mobile for the Core Ultra 7 366H.

Release date: June 30, 2024 for the desktop part, January 4, 2026 for the mobile part.

Both parts are listed as Active in production status. Neither has an unlocked multiplier. Neither has a recorded launch MSRP.

FAQ

Q: Which processor wins in multi-core performance?

A: The Intel Core Ultra 7 366H wins every multi-core Cinebench test. In Cinebench R23 multi-core, it scores 28477 against 18161 for the i5-14401E, a 36.2 percent advantage.

Q: Which processor wins in single-core performance?

A: The Intel Core Ultra 7 366H also wins every single-core test. In Cinebench R23 single-core, it scores 4020 against 2564, a 36.2 percent margin.

Q: How do the core and thread counts compare?

A: The i5-14401E has 6 cores and 12 threads. The Core Ultra 7 366H has 16 cores and 16 threads. The mobile part has more physical cores but no hyper-threading.

Q: What are the thermal design power ratings?

A: The i5-14401E has a 65 watt TDP. The Core Ultra 7 366H has a 25 watt TDP. The mobile part delivers higher scores at a lower thermal envelope.

Q: Do the processors support the same memory types?

A: No. The i5-14401E supports DDR4 and DDR5. The Core Ultra 7 366H supports DDR5 and LPDDR5X. Only the desktop part supports ECC memory.

Q: How do the processors rank among all CPUs?

A: The i5-14401E sits in the 60th percentile. The Core Ultra 7 366H sits in the 87th percentile.

The Verdict

The recorded data supports a clear conclusion. The Intel Core Ultra 7 366H outperforms the Intel Core i5-14401E in every measured benchmark. The six head-to-head Cinebench tests all favor the mobile part, with uniform margins of roughly 36 percent. The single-core advantage is as pronounced as the multi-core advantage, which indicates a superior architecture rather than a simple core count benefit.

The i5-14401E retains relevance only in specific platform contexts. It is a desktop processor with a socketed Intel Socket 1700 interface, ECC memory support, DDR4 compatibility, and 16 PCIe Gen 5 lanes. System builders who require ECC memory or prefer a socketed desktop platform will find these features meaningful. The 65 watt TDP also fits traditional desktop cooling approaches.

The Core Ultra 7 366H delivers more performance in a mobile form factor. Its 3 nm process, 16 cores, 4.80 GHz boost clock, and 115.2 GB/s memory bandwidth combine to produce benchmark results that rival desktop processors such as the AMD Ryzen 9 5900X, which trails by only 0.3 percent in average score. The 25 watt TDP makes it suitable for thin-and-light systems that still require high compute throughput.

For users selecting a processor purely on benchmark performance, the data points exclusively to the Core Ultra 7 366H. For users constrained to the desktop platform, the i5-14401E offers a competitive position among its nearest rivals, all of which sit within one percent of its average score. The database does not record a single test where the desktop part wins.