Intel Core i9-14900 vs Intel Core Ultra 7 366H Comparison

The Intel Core i9-14900 and the Intel Core Ultra 7 366H represent two distinct approaches to processor design from the same manufacturer. The i9-14900 is a desktop-class Raptor Lake part with 24 cores and 32 threads, while the Ultra 7 366H is a mobile Panther Lake processor with 16 cores and 16 threads. The benchmark data shows a clear split: the desktop chip wins 13 of the 17 recorded head-to-head tests, while the mobile chip takes 4. The average benchmark score for the i9-14900 is 58115, placing it in the 92nd percentile of all CPUs, whereas the Ultra 7 366H averages 41263, good for the 87th percentile. These numbers alone suggest different intended workloads, but the specific test results reveal a more nuanced picture.

Where Each One Wins

The Intel Core i9-14900 dominates in heavily multithreaded and data-intensive workloads. Its largest victory comes in PassMark integer math, where it scores 175010 against 83695 for the Ultra 7 366H, a margin of 109.1 percent. Data compression shows a similar story: 550271 for the i9-14900 versus 327455 for the Ultra 7, a 68 percent gap. These results indicate that the i9-14900 is the stronger choice for tasks that scale with core count and raw throughput, such as content creation, software compilation, and scientific computing.

The i9-14900 also wins in Cinebench R23 multicore with 31070 points against 28477, a 9.1 percent advantage. The gap widens in Cinebench R20 multicore where the i9-14900 scores 15910 and the Ultra 7 scores 11960, a 33 percent difference. In Cinebench R15 multicore, the i9-14900 scores 4793 versus 2870, a 67 percent lead. The pattern is consistent: more cores and threads translate directly into higher scores in rendering workloads.

The Ultra 7 366H, by contrast, wins in specific single-thread and physics-oriented tests. Its most striking victory is in Cinebench R23 single-core, where it scores 4020 against 2212 for the i9-14900, a 45 percent advantage. It also wins Cinebench R15 single-core with 405 points versus 315, a 22.2 percent gap. The mobile chip takes PassMark find prime numbers with 326 against 188, a 42.3 percent lead, and PassMark physics with 2880 versus 2486, a 13.7 percent margin.

These wins point to the Ultra 7 366H being better at workloads that depend on single-core efficiency and certain mathematical operations. The find prime numbers test and physics simulation both rely on per-core performance rather than raw thread count. The i9-14900 still takes PassMark single-thread with 4323 points against 4043, a 6.9 percent margin, so the mobile chip's single-core advantage is not universal across all benchmarks.

The Verdict

The data supports different buyers for each processor. The Intel Core i9-14900 is the pick for users running multithreaded desktop workloads where core count matters. Its 24 cores and 32 threads, combined with 36 MB of shared L3 cache, give it a decisive edge in rendering, data compression, and integer math. The 92nd percentile ranking and an average benchmark score of 58115 place it among the top processors in the database, slightly behind the Intel Xeon Platinum 8260M with an average score of 58323 and a delta of -0.4 percent.

The Intel Core Ultra 7 366H suits mobile users who need strong single-core performance and energy efficiency. Its 16 cores and 16 threads run at a base clock of 2.00 GHz with a boost of 4.80 GHz, and its 25 W TDP is less than half the 65 W TDP of the i9-14900. The mobile chip wins in Cinebench R23 single-core and Cinebench R15 single-core, making it attractive for applications that are not fully multithreaded. Its average benchmark score of 41263 places it close to the AMD Ryzen 9 5900X, which averages 41376 with a delta of -0.3 percent.

Users who prioritize battery life and portability should choose the Ultra 7 366H. Users who need maximum desktop throughput should choose the i9-14900. The i9-14900 has a launch MSRP of $549, while the Ultra 7 366H has no recorded launch MSRP in the database.

Head-to-Head Benchmarks

The largest single victory for the i9-14900 is in PassMark integer math, where it scores 175010 against 83695 for the Ultra 7 366H, a 109.1 percent difference. This test measures raw integer arithmetic throughput, and the desktop chip's 24 cores and 32 threads provide more than double the execution resources of the mobile chip's 16 cores and 16 threads.

Cinebench R15 multicore shows a 67 percent gap, with the i9-14900 scoring 4793 and the Ultra 7 scoring 2870. Cinebench R20 multicore narrows the gap to 33 percent, with scores of 15910 and 11960 respectively. Cinebench R23 multicore shows the smallest multicore margin at 9.1 percent, with the i9-14900 at 31070 and the Ultra 7 at 28477. The shrinking gap across Cinebench versions suggests the newer test better reflects the mobile chip's architectural strengths, though the desktop part still wins.

PassMark data compression favors the i9-14900 by 68 percent, with scores of 550271 and 327455. PassMark random string sorting favors the desktop chip by 53.4 percent, with scores of 61060 and 39814. PassMark multithread shows a 33.4 percent gap, with the i9-14900 at 44578 and the Ultra 7 at 33429. PassMark data encryption gives the i9-14900 a 29.8 percent edge, with scores of 33540 and 25845.

The Ultra 7 366H wins its tests by smaller margins. Cinebench R23 single-core is its best result, scoring 4020 against 2212, a 45 percent lead. Cinebench R15 single-core gives the mobile chip a 22.2 percent win with scores of 405 and 315. PassMark find prime numbers favors the Ultra 7 by 42.3 percent, with scores of 326 and 188. PassMark physics gives the mobile chip a 13.7 percent win, with scores of 2880 and 2486.

The i9-14900 also wins the remaining tests. PassMark floating point math gives it a 16.1 percent edge, with scores of 120262 and 103615. PassMark extended instructions favors the desktop chip by 13.8 percent, with scores of 30624 and 26901. PassMark single-thread gives the i9-14900 a 6.9 percent win with scores of 4323 and 4043.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core i9-14900 has an average benchmark score of 58115, while the Intel Core Ultra 7 366H averages 41263.

Q: How do the two processors compare in Cinebench R23 multicore?

A: The i9-14900 scores 31070 against 28477 for the Ultra 7 366H, a 9.1 percent advantage for the desktop chip.

Q: Which processor wins in Cinebench R23 single-core?

A: The Ultra 7 366H wins with a score of 4020 against 2212 for the i9-14900, a 45 percent margin.

Q: What are the core and thread counts for each processor?

A: The i9-14900 has 24 cores and 32 threads. The Ultra 7 366H has 16 cores and 16 threads.

Q: How does the i9-14900 compare to its nearest rival, the AMD Ryzen 7 9850X3D?

A: The i9-14900 has an average score of 58115, while the AMD Ryzen 7 9850X3D averages 58386, giving the rival a 0.5 percent advantage.

Q: What is the TDP difference between the two processors?

A: The i9-14900 has a TDP of 65 W, while the Ultra 7 366H has a TDP of 25 W.

Q: Which processor supports ECC memory?

A: The i9-14900 supports ECC memory. The Ultra 7 366H does not support ECC memory.

Architecture Differences

The i9-14900 uses the Raptor Lake architecture on a 10 nm process node from Intel. It has 24 cores and 32 threads, with an L1 cache of 80 KB per core, an L2 cache of 2 MB per core, and 36 MB of shared L3 cache. The die size is 257 mm². It supports DDR4 and DDR5 memory in a dual-channel configuration. The processor uses Intel Socket 1700 and provides PCIe Gen 5 with 16 lanes from the CPU. Integrated graphics come from UHD Graphics 770. The base clock is 2.00 GHz and the boost clock is 5.80 GHz.

The Ultra 7 366H uses the Panther Lake architecture on a 3 nm process node, also from Intel. It has 16 cores and 16 threads, with an L1 cache of 192 KB per core, an L2 cache of 2.5 MB per core, and 18 MB of shared L3 cache. It supports DDR5 and LPDDR5X memory in a dual-channel configuration with a memory bandwidth of 115.2 GB/s. The processor uses Intel BGA 2540 and provides PCIe Gen 5 with 12 lanes from the CPU. Integrated graphics come from Intel Xe3 Graphics. The base clock is 2.00 GHz and the boost clock is 4.80 GHz.

The process node difference is significant. The 3 nm node of the Ultra 7 366H allows for a 25 W TDP, compared to the 65 W TDP of the i9-14900 on 10 nm. The smaller process also enables a higher single-core clock efficiency, as shown by the Cinebench R23 single-core result. The i9-14900 compensates with more cores, more threads, and a larger shared L3 cache, which drives its multicore wins.

The memory support differs in generation. The i9-14900 supports DDR4 and DDR5, while the Ultra 7 366H supports DDR5 and LPDDR5X. The Ultra 7 366H has a recorded memory bandwidth of 115.2 GB/s, while the i9-14900 has no recorded memory bandwidth in the database. The i9-14900 supports ECC memory, and the Ultra 7 366H does not. PCIe lane counts also differ: 16 lanes for the i9-14900 and 12 lanes for the Ultra 7 366H.

The release dates place the i9-14900 in early 2024 and the Ultra 7 366H in early 2026. Both processors are listed as active in production. The i9-14900 has a launch MSRP of $549, while the Ultra 7 366H has no recorded launch MSRP. Both processors have locked multipliers, and neither supports unlocked overclocking.