Intel Core i5-14600 vs Intel Core Ultra X9 378H Comparison

The Intel Core i5-14600 and Intel Core Ultra X9 378H represent two distinct approaches to processing power, one aimed at desktop systems and the other at mobile platforms. The data shows a clear split in workload performance, with the desktop chip dominating in specific integer and memory tasks, while the mobile processor takes the lead in most other benchmarks. Both processors sit at the 89th percentile in the database, indicating comparable overall standing among all tested CPUs.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core Ultra X9 378H has 16 cores and 16 threads, while the Intel Core i5-14600 has 14 cores and 20 threads. The desktop chip uses hyper-threading, which gives it more threads than physical cores, whereas the mobile chip has a 1:1 core-to-thread ratio.

Q: How do their average benchmark scores compare?

A: The Intel Core Ultra X9 378H records an average benchmark score of 47468, placing it 5.7% ahead of the Intel Core i5-14600, which has an average score of 44889. The mobile chip's nearest rival, the AMD Ryzen 9 PRO 5945, scores 47527, a delta of -0.1%, while the desktop chip's closest competitor, the Intel Core i9-12900KS, scores 45094, a delta of -0.5%.

Q: What is the biggest single benchmark win for each processor?

A: The Intel Core i5-14600's largest victory is in Passmark integer math, scoring 117078 against 92603, a delta of 26.4% in its favor. The Intel Core Ultra X9 378H's largest win is in Passmark find prime numbers, scoring 357 against 155, a delta of -56.6% from the perspective of the desktop chip.

Q: Which processor has a higher boost clock?

A: The Intel Core i5-14600 has a boost clock of 5.20 GHz, which is higher than the 5.00 GHz boost clock of the Intel Core Ultra X9 378H. Despite this, the mobile chip wins all single-core Cinebench tests.

Q: Do both processors support ECC memory?

A: No. The Intel Core i5-14600 supports ECC memory, while the Intel Core Ultra X9 378H does not. The desktop chip also supports DDR4 and DDR5 memory, whereas the mobile chip is limited to LPDDR5X.

Q: What are the process nodes for these two CPUs?

A: The Intel Core i5-14600 is built on a 10 nm process node, while the Intel Core Ultra X9 378H uses a 3 nm process node, both manufactured by Intel. The smaller node for the mobile chip likely contributes to its lower 25 W TDP compared to the desktop chip's 65 W TDP.

The Verdict

The benchmark data paints a clear picture for different use cases. The Intel Core i5-14600, with its desktop socket and higher thread count, is the pick for workloads that favor integer math and data compression. Its 26.4% lead in Passmark integer math and 12.4% lead in data compression indicate a strong fit for general productivity and database-style operations.

The Intel Core Ultra X9 378H, on the other hand, dominates in most other categories. Its 31.6% advantage in Passmark physics and 25.1% lead in floating point math suggest superior performance in simulation and scientific computing. The mobile chip also wins every Cinebench test, from R15 to R23, in both single-core and multi-core variants, making it the choice for rendering tasks.

The desktop processor holds a slight edge in random string sorting with a 7.6% delta, while the mobile chip wins data encryption by 15.9% and extended instructions by 18%. For users running a mix of workloads, the Intel Core Ultra X9 378H offers the higher average benchmark score at 47468, putting it closer to high-end desktop parts like the Intel Core i7-13700KF, which scores 47330. The Intel Core i5-14600, with an average score of 44889, trails slightly but remains competitive with the AMD Ryzen 5 7500X3D at 44573.

Head-to-Head Benchmarks

The Intel Core Ultra X9 378H wins 14 of the 17 recorded head-to-head benchmarks, establishing a broad performance advantage. The most consistent margin appears in Cinebench tests, where the mobile chip leads by exactly 6.4% in R15 multicore, R20 multicore, R20 singlecore, R23 multicore, and R23 singlecore. The R15 singlecore result shows a 6.3% lead for the Ultra X9, while Passmark multithread and Passmark singlethread both show a 6.4% edge. These consistent deltas suggest a fundamental per-core efficiency advantage for the Panther Lake architecture.

The floating point math benchmark delivers a decisive win for the mobile chip. The Intel Core Ultra X9 378H scores 114500 versus 85759 for the desktop chip, a 25.1% difference. This margin indicates a significantly stronger FPU design, which also shows up in the physics test where the mobile chip scores 3404 against 2330, a 31.6% advantage. The find prime numbers test shows an even larger gap, with the Ultra X9 scoring 357 versus 155, a 56.6% difference, pointing to a major advantage in integer-heavy iterative workloads.

The Intel Core i5-14600 secures three wins, all in Passmark tests. The integer math result is the standout, with the desktop chip scoring 117078 against 92603, a 26.4% margin. Data compression also favors the desktop chip, scoring 434620 versus 386591, a 12.4% lead. Random string sorting completes the set, with the i5-14600 scoring 48043 against 44648, a 7.6% advantage. These wins show that the desktop chip retains a strong edge in memory-bound and integer-logic operations, even though it loses the overall benchmark count.

Specification Differences

The two processors differ fundamentally in platform and power profile. The Intel Core i5-14600 uses an Intel Socket 1700, designed for desktop systems, while the Intel Core Ultra X9 378H uses an Intel BGA 2540, indicating a soldered mobile package. The TDP figures reflect this split: the desktop chip draws 65 W, while the mobile chip is rated at 25 W, a 40 W difference that makes the Ultra X9 far more suitable for thin-and-light laptops.

Memory support diverges sharply. The i5-14600 supports both DDR4 and DDR5 in a dual-channel configuration, while the Ultra X9 supports only LPDDR5X. The mobile chip compensates with a rated memory bandwidth of 153.6 GB/s, a figure not provided for the desktop part. ECC memory is available on the i5-14600 but not on the Ultra X9, a key distinction for workstation reliability.

PCIe lanes also differ. The desktop chip offers Gen 5 with 16 lanes (CPU only), while the mobile chip provides Gen 5 with 4 lanes (CPU only). This 12-lane difference directly impacts expandability for GPUs and NVMe drives. The integrated graphics differ as well, with the i5-14600 using UHD Graphics 770 and the Ultra X9 using Arc B390.

Architecture Differences

The architectural split is substantial. The Intel Core i5-14600 is based on Raptor Lake, with the codename Raptor Lake-R, and belongs to the Core 14th Gen series. The Intel Core Ultra X9 378H uses the Panther Lake codename, part of the Core Ultra Series 3, and is listed as Ultra X9 (Panther Lake-H). The desktop chip is built on a 10 nm process, while the mobile chip uses a 3 nm process, both from Intel's foundry.

Cache hierarchies differ notably. The i5-14600 has 80 KB of L1 cache per core, 2 MB of L2 per core, and 24 MB of shared L3 cache. The Ultra X9 has 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3 cache. While the mobile chip has more L1 and L2 per core, the desktop chip has 6 MB more L3 cache overall.

The core counts and thread counts reveal a different design philosophy. The i5-14600 uses 14 cores and 20 threads, leveraging hyper-threading for higher thread density. The Ultra X9 uses 16 physical cores and 16 threads, with no hyper-threading. This configuration, combined with the 3 nm node, likely explains the mobile chip's efficiency. Both chips have locked multipliers and are currently in active production. The i5-14600 was released on January 7, 2024, with a launch MSRP of $255, while the Ultra X9 was released on April 3, 2026, with no launch MSRP recorded.