Intel Core i9-14901E vs Intel Core Ultra 7 356H Comparison

The Intel Core i9-14901E and the Intel Core Ultra 7 356H represent two distinct design philosophies from the same manufacturer. The i9-14901E is a desktop part built on the Raptor Lake architecture, while the Ultra 7 356H is a mobile processor using the newer Panther Lake architecture. The benchmark data shows a clear split in their capabilities, with each processor dominating in different types of workloads.

Where Each One Wins

The Intel Core i9-14901E is the clear winner in single-threaded performance and classic integer-heavy tasks. The data shows it winning 7 of the 17 recorded head-to-head benchmarks. Its most decisive victories come in Cinebench R23 single-core, where it scores 3635 against the Ultra 7's 2040, a 78.2% advantage. It also leads in Cinebench R23 multi-core with a score of 25753 versus 18395, a 40% margin. The i9-14901E also excels in PassMark integer math, scoring 112736 compared to the Ultra 7's 83111, a 35.6% lead. This suggests the desktop chip is better suited for tasks that rely heavily on high clock speeds and raw instruction throughput per core.

The Intel Core Ultra 7 356H counters with dominance in a broader range of workloads, winning 10 benchmarks. Its strengths lie in data compression, encryption, and floating-point mathematics. It scores 336177 in PassMark data compression versus 288777 for the i9, a 14.1% lead. In data encryption, the Ultra 7 scores 26345 against 18571, a 29.5% advantage. The most extreme difference is in extended instructions, where the Ultra 7 scores 27898 versus 17249, a 38.2% lead. These results indicate the mobile chip has a more modern instruction handling capability and better throughput for parallel data operations, despite having a lower boost clock.

FAQ

Q: Which processor has the higher boost clock speed?

A: The Intel Core i9-14901E has a boost clock of 5.60 GHz, while the Intel Core Ultra 7 356H has a boost clock of 4.70 GHz.

Q: How do the two processors compare in Cinebench R23 multi-core performance?

A: The Intel Core i9-14901E scores 25753, which is 40% higher than the Intel Core Ultra 7 356H's score of 18395.

Q: Which processor has more cores and threads?

A: The Intel Core Ultra 7 356H has 16 cores and 16 threads. The Intel Core i9-14901E has 8 cores and 16 threads.

Q: What are the thermal design power (TDP) ratings for these processors?

A: The Intel Core i9-14901E has a TDP of 65 watts, while the Intel Core Ultra 7 356H has a TDP of 25 watts.

Q: How does the i9-14901E perform in PassMark single-thread tests?

A: The Intel Core i9-14901E scores 4354, which is 6.9% higher than the Ultra 7 356H's score of 4072.

Q: Which processor uses a newer manufacturing process?

A: The Intel Core Ultra 7 356H uses a 3 nm process, while the Intel Core i9-14901E uses a 10 nm process.

Head-to-Head Benchmarks

The Cinebench R23 multi-core test reveals a major divergence. The i9-14901E scores 25753, while the Ultra 7 356H scores 18395, giving the desktop part a 40% win. This is surprising because the Ultra 7 has 16 cores against the i9's 8 cores. The i9's higher 5.60 GHz boost clock and larger 36 MB shared L3 cache likely compensate for the core count deficit in this workload. The result suggests that the i9's Raptor Lake architecture sustains high multi-core throughput more effectively than the Panther Lake chip in this specific render test.

Single-core performance shows an even larger gap. The i9-14901E scores 3635 in Cinebench R23 single-core against 2040 for the Ultra 7 356H, a 78.2% delta. This massive difference highlights the i9's clock speed advantage and its more mature single-thread execution pipeline. The Ultra 7's lower 1.90 GHz base clock and 4.70 GHz boost clock cannot match the i9's raw speed. This makes the i9 the better choice for lightly threaded applications that depend on one or two cores.

The Ultra 7 356H strikes back in Cinebench R20, where it scores 12153 multi-core versus 10816 for the i9, an 11% lead. It also wins the single-core R20 test with 1715 versus 1526, an 11% advantage. This reversal is notable because the i9 wins R23 by a wide margin but loses R20. The workload differences between R20 and R23 can shift the balance, and the Ultra 7's newer Panther Lake architecture may handle the R20 instruction mix more efficiently.

PassMark results reinforce the split. The Ultra 7 wins data compression (336177 vs 288777), data encryption (26345 vs 18571), extended instructions (27898 vs 17249), find prime numbers (327 vs 189), floating-point math (103128 vs 81089), and multithread (33978 vs 30298). The i9 wins integer math (112736 vs 83111), physics (3041 vs 2895), and single-thread (4354 vs 4072). These results show the Ultra 7 excels at data-intensive parallel tasks, while the i9 retains a lead in integer arithmetic and single-thread responsiveness.

Specification Differences

The core and thread counts differ significantly. The i9-14901E has 8 cores and 16 threads, while the Ultra 7 356H has 16 cores and 16 threads. Both support the same number of threads, but the Ultra 7 distributes them across twice as many physical cores. Clock speeds also diverge, with the i9 running at a 2.80 GHz base and 5.60 GHz boost, while the Ultra 7 runs at a 1.90 GHz base and 4.70 GHz boost. The TDP ratings reflect their different market segments, with the i9 at 65 watts and the Ultra 7 at 25 watts.

Memory support differs as well. The i9 supports both DDR4 and DDR5, while the Ultra 7 supports DDR5 and LPDDR5X. The Ultra 7 lists a memory bandwidth of 115.2 GB/s, while the i9 does not have a recorded bandwidth figure. ECC memory is supported on the i9 but not on the Ultra 7. PCIe lane counts also differ, with the i9 offering Gen 5 with 16 lanes and the Ultra 7 offering Gen 5 with 12 lanes. The sockets are incompatible, as the i9 uses Intel Socket 1700 and the Ultra 7 uses Intel BGA 2540. The integrated graphics differ, with the i9 using UHD Graphics 770 and the Ultra 7 using Intel Xe3 Graphics.

Architecture Differences

The two processors come from different architectural generations. The i9-14901E uses the Raptor Lake architecture with the Raptor Lake-R codename, part of the Raptor Lake Refresh. The Ultra 7 356H uses the Panther Lake architecture with the Panther Lake codename, part of the Panther Lake-H generation. The manufacturing process nodes differ substantially, with the i9 built on a 10 nm process and the Ultra 7 built on a 3 nm process. Both are fabricated by Intel, but the 3 nm node allows the Ultra 7 to pack more transistors into a smaller area, which contributes to its lower 25 watt TDP.

Cache configurations are also distinct. The i9 has 80 KB of L1 cache per core and 2 MB of L2 cache per core, with a 36 MB shared L3 cache. The Ultra 7 has 192 KB of L1 cache per core and 2.5 MB of L2 cache per core, but only 18 MB of shared L3 cache. The die size for the i9 is 257 mm², while the Ultra 7 has no recorded die size. The Ultra 7's larger per-core cache hierarchy and smaller L3 pool suggest a design optimized for high bandwidth per core, while the i9's larger shared L3 benefits multi-core workloads that reuse a common dataset.

The Verdict

The data indicates that the Intel Core i9-14901E is the better choice for single-threaded and high-clock-speed workloads. Its 78.2% lead in Cinebench R23 single-core and 6.9% lead in PassMark single-thread make it the superior option for applications that depend on one core's speed. Its 40% lead in Cinebench R23 multi-core also makes it attractive for rendering tasks that scale with clock frequency and large shared cache. The i9 also supports ECC memory, which may matter for certain workstation environments.

The Intel Core Ultra 7 356H is the better option for modern parallel workloads and power-sensitive mobile systems. It wins data compression, encryption, extended instructions, and floating-point math by margins ranging from 14.1% to 38.2%. Its 16 physical cores handle multi-threaded parallel data tasks more efficiently, and its 3 nm process enables a 25 watt TDP, making it suitable for compact or battery-powered systems. The 115.2 GB/s memory bandwidth and faster per-core L1 and L2 caches support its data processing strengths.

The choice depends on the workload. Users prioritizing raw single-core speed and classic integer performance should consider the i9-14901E. Users prioritizing modern instruction throughput, data encryption, and power efficiency should consider the Ultra 7 356H. The benchmark data does not show a universal winner; it shows two processors tuned for different priorities.