Intel Core i9-14900F vs Intel Core Ultra X7 358H Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive overall win for the Intel Core i9-14900F, which takes 15 of the 17 direct comparisons. The largest margin appears in Cinebench R23 multi-core, where the i9-14900F scores 39,551 against the Core Ultra X7 358H's 18,747, a difference of 111%. That is the single biggest gap in the entire head-to-head set. The single-core variant of the same test shows an even larger relative advantage in percentage terms: 5,583 versus 2,080, which is 168.4% ahead. These two results establish the fundamental pattern: the desktop part dominates in sustained throughput and in lightly threaded workloads.

The Cinebench R15 and R20 tests reinforce the same trend but with smaller margins. In R15 multi-core, the i9-14900F posts 3,986 against 3,027, a 31.7% lead. In R20 multi-core, the scores are 16,611 and 12,011, respectively, for a 38.3% delta. Single-core results in R15 show a 86.4% advantage (562 versus 301.5), while R20 single-core matches the multi-core delta at 38.3% (2,344 versus 1,695). The consistency across Cinebench versions suggests the performance gap is not an artifact of one particular workload.

PassMark tests tell a similar story in most categories. Data compression favors the i9-14900F by 69.7% (564,207 versus 332,508). Integer math shows a 113% advantage (177,066 versus 83,147). Random string sorting is 57.9% ahead (63,728 versus 40,357). Multi-thread performance in PassMark is 37.7% higher (46,532 versus 33,802). Data encryption shows a 33% lead (34,644 versus 26,046). Floating point math and extended instructions are closer, with the i9-14900F ahead by 15.1% and 14%, respectively. Single-thread PassMark results narrow further: 4,506 versus 4,124, a 9.3% margin.

The Core Ultra X7 358H wins only two tests, and both are narrow. In PassMark find prime numbers, it scores 337 against 209, which means the i9-14900F is actually 38% behind. In PassMark physics, the Ultra X7 posts 3,021 versus 2,899, a 4% edge. These two wins indicate specific strengths in prime-number computation and physics simulation, but they do not offset the broad defeats elsewhere.

Architecture Differences

The two processors come from different Intel design lineages. The i9-14900F uses Raptor Lake, specifically the Raptor Lake-R refresh, built on a 10 nm process. The Core Ultra X7 358H uses Panther Lake, a newer architecture on a 3 nm node. The process shrink gives the mobile part a density advantage, but the desktop part compensates with a much larger silicon footprint: the i9-14900F has a die size of 257 mm², while the Ultra X7 has no recorded die size.

Core and thread counts differ substantially. The i9-14900F provides 24 cores and 32 threads, while the Ultra X7 offers 16 cores and 16 threads. The desktop chip therefore has 8 more cores and 16 more threads. Cache hierarchies also diverge. The i9-14900F uses 80 KB of L1 per core and 2 MB of L2 per core, with 36 MB of shared L3. The Ultra X7 uses larger per-core caches: 192 KB L1 per core and 3 MB L2 per core, but its shared L3 is only 18 MB. The Ultra X7's per-core cache is larger, but the i9-14900F's total L3 is double.

Clock speeds favor the desktop part. The i9-14900F has a 2.00 GHz base clock and a 5.80 GHz boost clock. The Ultra X7 has a 1.90 GHz base and a 4.80 GHz boost. The boost difference of 1.00 GHz is notable for single-thread workloads. The i9-14900F also has a much higher TDP rating at 65 watts versus 25 watts, reflecting its desktop power envelope.

Memory support differs as well. The i9-14900F supports both DDR4 and DDR5, while the Ultra X7 supports only LPDDR5X. Both use dual-channel memory buses. The Ultra X7 records a memory bandwidth of 153.6 GB/s, while the i9-14900F has no listed bandwidth figure. ECC memory is supported on the i9-14900F but not on the Ultra X7.

Integrated graphics separate the two clearly. The i9-14900F has no integrated GPU (listed as N/A), while the Ultra X7 includes Arc B390 graphics. PCIe lanes also differ: the i9-14900F provides Gen 5 with 16 CPU lanes, while the Ultra X7 provides Gen 5 with only 4 CPU lanes. The sockets are incompatible: Intel Socket 1700 for the desktop part, Intel BGA 2540 for the mobile part. The i9-14900F launched on 2024-01-07 with a launch MSRP of $524; the Ultra X7 has a later release date of 2026-01-04 and no recorded MSRP.

FAQ

Q: Which processor has the higher boost clock?

A: The Intel Core i9-14900F boosts to 5.80 GHz, while the Intel Core Ultra X7 358H boosts to 4.80 GHz. The desktop part is 1.00 GHz higher.

Q: How much larger is the L3 cache on the i9-14900F?

A: The i9-14900F has 36 MB of shared L3 cache, exactly double the 18 MB found on the Core Ultra X7 358H.

Q: Does the Core Ultra X7 358H have integrated graphics?

A: Yes. The Ultra X7 includes Arc B390 integrated graphics. The i9-14900F has no integrated graphics, listed as N/A.

Q: What is the average benchmark score difference between the two?

A: The i9-14900F has an average benchmark score of 60,008, while the Ultra X7 scores 40,967. The i9-14900F also ranks at the 92nd percentile among all CPUs, compared to the 87th percentile for the Ultra X7.

Q: Which part supports ECC memory?

A: The i9-14900F supports ECC memory. The Core Ultra X7 358H does not.

Q: In which benchmark does the Core Ultra X7 358H show its largest win?

A: The Ultra X7 wins PassMark find prime numbers by 38%, scoring 337 against 209. Its other win is PassMark physics, where it leads by 4%.

The Verdict

The data points to a clear separation of roles. The Intel Core i9-14900F is the stronger processor in nearly every measured category. Its 15 wins out of 17 head-to-head tests include all Cinebench versions, all PassMark tests except two, and both single-thread and multi-thread metrics. The average benchmark score of 60,008 versus 40,967 places it 46.5% higher overall. Its percentile rank of 92 versus 87 confirms that it sits higher in the global distribution of CPU performance.

The Core Ultra X7 358H does not compete on raw throughput. Its wins in find prime numbers and physics are real but narrow. Its strengths lie elsewhere: a smaller 25-watt TDP, a 3 nm process node, larger per-core L1 and L2 caches, integrated Arc B390 graphics, and LPDDR5X memory support with a recorded bandwidth of 153.6 GB/s. These features fit a mobile context, where power efficiency and integration matter more than absolute compute.

The nearest rival data reinforces the positioning. The i9-14900F's closest competitors are high-end desktop and mobile HX parts, including the AMD Ryzen 9 7945HX with a delta of -0.2% and the Intel Xeon Gold 6338T at -0.9%. The Ultra X7's nearest rivals are lower-power mobile chips like the AMD Ryzen AI 5 PRO 440 and the Intel Core Ultra 7 356H, both at -0.6%. The i9-14900F competes in a higher performance tier.

Specification Differences

The two processors differ in every major specification category. Core count: 24 versus 16. Thread count: 32 versus 16. Base clock: 2.00 GHz versus 1.90 GHz. Boost clock: 5.80 GHz versus 4.80 GHz. TDP: 65 watts versus 25 watts. Socket: Intel Socket 1700 versus Intel BGA 2540. Process node: 10 nm versus 3 nm. Die size: 257 mm² versus no recorded value. L1 cache: 80 KB per core versus 192 KB per core. L2 cache: 2 MB per core versus 3 MB per core. L3 cache: 36 MB shared versus 18 MB shared. Memory support: DDR4 and DDR5 versus LPDDR5X only. Memory bus: both dual-channel. Memory bandwidth: not listed for the i9-14900F, 153.6 GB/s for the Ultra X7. ECC: supported versus not supported. PCIe: Gen 5 16 lanes versus Gen 5 4 lanes. Integrated graphics: N/A versus Arc B390. Market segment: Desktop versus Mobile. Release date: 2024-01-07 versus 2026-01-04. Launch MSRP: $524 versus no recorded value. Part number: SRN3W versus SA4RAQ9ET.

Where Each One Wins

The Intel Core i9-14900F wins in all Cinebench tests, all PassMark tests except two, and all single-thread and multi-thread comparisons. Its largest margins come in Cinebench R23 multi-core (111%), PassMark integer math (113%), and Cinebench R23 single-core (168.4%). These results indicate a processor built for heavy multi-threaded rendering, data compression, encryption, and integer-heavy workloads. The 24 cores and 32 threads, combined with the 5.80 GHz boost clock, make it the choice for desktop tasks where power draw is not a constraint.

The Intel Core Ultra X7 358H wins only in PassMark find prime numbers (38% ahead) and PassMark physics (4% ahead). These wins suggest a strength in specific algorithmic patterns, particularly prime-number detection and physics calculations. The larger per-core L1 and L2 caches may contribute to these results. Its integrated Arc B390 graphics, 3 nm process, and LPDDR5X memory support with 153.6 GB/s bandwidth make it suitable for mobile systems where the CPU and GPU share a package and where a 25-watt TDP is a practical limit. The 16 cores and 16 threads are lower, but the architecture targets efficiency rather than absolute peak performance.