Intel Core i3-14100F vs Intel Core Ultra 7 366H Comparison

Head-to-Head Benchmarks

The benchmark data delivers a decisive outcome: the Intel Core Ultra 7 366H wins all 17 recorded head-to-head comparisons against the Intel Core i3-14100F. The gap is consistent and often dramatic, with the smallest margin appearing in single-threaded workloads and the largest in prime number calculation.

In Cinebench testing, the Ultra 7 366H posts 2870 points in R15 multi-core against 1318 for the i3-14100F, a 54.1% advantage. The R15 single-core result tells the same story: 405 points versus 186, again a 54.1% gap. Moving to R20, the Ultra 7 scores 11960 multi-core and 1688 single-core, while the i3-14100F manages 5495 and 775 respectively. The R23 results show the widest multi-core separation in the Cinebench suite: 28477 for the Ultra 7 versus 13084 for the i3-14100F. Single-core R23 also favors the Ultra 7 by a wide margin, 4020 to 1847.

PassMark workloads reinforce the pattern. The Ultra 7 366H delivers 327455 in data compression against 176106 for the i3-14100F, a 46.2% lead. Data encryption shows a 65.5% gap, with the Ultra 7 scoring 25845 and the i3-14100F scoring 8922. Extended instructions favor the Ultra 7 by 55.5%, 26901 to 11984. Floating point math is another strong win for the Ultra 7: 103615 versus 35370, a 65.9% difference. Integer math shows a narrower but still substantial 45.8% gap, 83695 to 45357.

The largest single delta appears in the find prime numbers test, where the Ultra 7 scores 326 against just 61 for the i3-14100F, an 81.3% difference. This workload is heavily dependent on core count and memory throughput, and the Ultra 7's 16 cores against the i3-14100F's 4 cores explains the magnitude. Multithread performance follows suit: 33429 for the Ultra 7 versus 15420 for the i3-14100F, a 53.9% gap. Physics simulation also goes to the Ultra 7 by 62.6%, 2880 to 1077. Random string sorting favors the Ultra 7 by 55.8%, 39814 to 17596.

The closest contest is PassMark single-thread performance. The Ultra 7 scores 4043, the i3-14100F scores 3778, a 6.6% gap. This is the only benchmark where the i3-14100F comes within single digits, yet it still loses. The i3-14100F's higher base clock of 3.50 GHz helps narrow the single-core gap, but the Ultra 7's 4.80 GHz boost clock and newer architecture keep it ahead.

The average benchmark score confirms the hierarchy: the Ultra 7 366H averages 41263 across all recorded tests, while the i3-14100F averages 18519. The Ultra 7 sits at the 87th percentile of all CPUs in the database, compared to the 72nd percentile for the i3-14100F. The i3-14100F's nearest rivals include the Intel Core i5-13420H with an average score of 18511 (0% delta) and the AMD Ryzen 3 PRO 8300GE at 18505 (0.1% delta). The Ultra 7's nearest rivals include the Intel Core Ultra 7 356H at 41215 (0.1% delta) and the AMD Ryzen 9 5900X at 41376 (-0.3% delta, meaning the 5900X is slightly ahead).

The Verdict

The data points to one conclusion: the Intel Core Ultra 7 366H is the stronger processor in every measured category. None of the 17 head-to-head benchmarks favor the i3-14100F. The Ultra 7 holds a 54.1% advantage across all Cinebench tests, and its PassMark wins range from 6.6% to 81.3%.

The i3-14100F is a desktop part with 4 cores and 8 threads, launched in January 2024 with a launch MSRP of $109. The Ultra 7 366H is a mobile processor with 16 cores and 16 threads, released in January 2026. The Ultra 7 also includes integrated Intel Xe3 Graphics, while the i3-14100F has no integrated graphics. For any workload represented in the database, the Ultra 7 366H delivers more performance. The only scenario where the i3-14100F looks competitive is single-threaded PassMark, where the 6.6% gap reflects the i3-14100F's high base clock rather than any architectural superiority.

Architecture Differences

The two processors come from different Intel design generations. The i3-14100F uses Raptor Lake architecture, specifically the Raptor Lake-R refresh, built on Intel's 10 nm process. The Ultra 7 366H uses Panther Lake architecture, built on a 3 nm process. The process node difference is substantial: 10 nm versus 3 nm, which explains part of the Ultra 7's efficiency and performance advantages.

Core counts differ sharply. The i3-14100F has 4 cores and 8 threads, while the Ultra 7 366H has 16 cores and 16 threads. The Ultra 7 does not use simultaneous multithreading, so its thread count equals its core count. The i3-14100F relies on hyperthreading to reach 8 threads from 4 physical cores.

Cache hierarchies also differ. The i3-14100F has 80 KB of L1 cache per core, 1.25 MB of L2 per core, and 12 MB of shared L3 cache. The Ultra 7 366H has 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3 cache. The Ultra 7's larger per-core caches and bigger L3 pool contribute to its single-thread advantage.

The i3-14100F supports ECC memory; the Ultra 7 does not. The i3-14100F supports DDR4 and DDR5 memory in dual-channel configuration. The Ultra 7 supports DDR5 and LPDDR5X in dual-channel configuration, with a recorded memory bandwidth of 115.2 GB/s. The i3-14100F's memory bandwidth is not recorded in the database.

PCIe support differs as well. The i3-14100F provides Gen 5 with 16 lanes (CPU only). The Ultra 7 provides Gen 5 with 12 lanes (CPU only). The i3-14100F has no integrated graphics, while the Ultra 7 includes Intel Xe3 Graphics. The i3-14100F uses Intel Socket 1700; the Ultra 7 uses Intel BGA 2540, a soldered mobile package.

Specification Differences

The recorded specifications show clear separation between the two parts. The i3-14100F has a base clock of 3.50 GHz and a boost clock of 4.70 GHz. The Ultra 7 366H has a base clock of 2.00 GHz and a boost clock of 4.80 GHz. The i3-14100F's higher base clock helps in lightly threaded tasks, but the Ultra 7's higher boost clock and newer architecture win the single-thread tests anyway.

Thermal design power differs significantly. The i3-14100F has a TDP of 58 watts. The Ultra 7 366H has a TDP of 25 watts. The Ultra 7 delivers substantially higher performance at a lower rated power draw, which reflects the 3 nm process advantage.

The i3-14100F has a die size of 163 mm²; the Ultra 7's die size is not recorded. Transistor counts are not recorded for either part. The i3-14100F is a desktop segment product; the Ultra 7 is a mobile segment product. Both are listed as active production status, and neither has an unlocked multiplier.

The i3-14100F was released on January 7, 2024, with a launch MSRP of $109. The Ultra 7 366H was released on January 4, 2026, with no launch MSRP recorded. The i3-14100F carries part number SRMX2; the Ultra 7 carries part number SA4R9Q9EL.

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 7 366H has 16 cores and 16 threads, while the Intel Core i3-14100F has 4 cores and 8 threads.

Q: Does the i3-14100F have integrated graphics?

A: No. The i3-14100F lists integrated graphics as N/A. The Ultra 7 366H includes Intel Xe3 Graphics.

Q: How large is the single-thread performance gap?

A: In PassMark single-thread testing, the Ultra 7 366H scores 4043 against 3778 for the i3-14100F, a 6.6% advantage. This is the smallest gap of any recorded benchmark between the two.

Q: Which processor supports ECC memory?

A: The i3-14100F supports ECC memory. The Ultra 7 366H does not.

Q: What is the largest benchmark difference between the two?

A: The largest gap is in PassMark find prime numbers, where the Ultra 7 366H scores 326 and the i3-14100F scores 61, an 81.3% difference.

Q: How do their average benchmark scores compare?

A: The Ultra 7 366H has an average benchmark score of 41263, while the i3-14100F averages 18519. The Ultra 7 ranks at the 87th percentile of all CPUs, the i3-14100F at the 72nd.

Where Each One Wins

The Ultra 7 366H wins every recorded benchmark, so the practical question is where the i3-14100F comes closest. Single-threaded PassMark tests show the smallest gap at 6.6%, meaning the i3-14100F is least disadvantaged in lightly threaded desktop tasks such as basic responsiveness or older applications that rely on high clock speed. Its 3.50 GHz base clock and 4.70 GHz boost clock keep it within reach of the Ultra 7 in single-core work.

The i3-14100F also supports ECC memory, which the Ultra 7 does not. For systems requiring error-correcting memory, the i3-14100F is the only one of the two that fits. It uses Intel Socket 1700, a desktop platform, and has a launch MSRP of $109. The Ultra 7 uses a soldered BGA 2540 package, so it is not a drop-in replacement for desktop builds.

For every multi-threaded workload, the Ultra 7 366H is the clear choice. Its 16 cores deliver 54.1% to 81.3% advantages across Cinebench and PassMark multi-core tests. Data compression, encryption, integer math, floating point math, physics simulation, and random string sorting all favor the Ultra 7 by margins from 45.8% to 65.9%. The Ultra 7 also brings integrated graphics, a 3 nm process, and a lower 25 watt TDP, making it suitable for mobile platforms where power efficiency matters.

The i3-14100F remains relevant only in narrow scenarios: ECC memory support, desktop socket compatibility, and the smallest single-thread deficit. The data does not show any benchmark where the i3-14100F takes the lead.