Intel Core i7-14701E vs Intel Core Ultra 7 356H Comparison

The Intel Core i7-14701E and the Intel Core Ultra 7 356H represent two distinct design philosophies from the same manufacturer. The 14701E is a desktop part built on the mature Raptor Lake architecture, while the 356H is a mobile processor utilizing the newer Panther Lake architecture. The benchmark data reveals a clear split in their capabilities, with the 356H dominating in multi-threaded and compute-heavy workloads, while the 14701E holds a significant advantage in specific single-threaded tests.

Where Each One Wins

The data shows a clear division of labor. The Intel Core Ultra 7 356H wins 12 of the 17 head-to-head benchmark comparisons. Its most substantial victories come in the PassMark compute suite, where it outperforms the 14701E by large margins. In floating point math, the 356H scores 103128 against 61873, a 40% advantage. The gap is even wider in data encryption, where the 356H leads with 26345 versus 14862, a 43.6% difference. The 356H also wins in prime number finding, scoring 327 versus 176, a 46.2% lead. These results indicate the 356H is significantly more capable in workloads that stress raw computational throughput and cryptography.

The 356H also wins all three Cinebench multi-core tests. In Cinebench R15 multi-core, it scores 3055 against 2237, a 26.8% lead. In Cinebench R20 multi-core, it leads with 12153 versus 9321, a 23.3% margin. The PassMark multithread score follows the same pattern, with the 356H at 33978 versus 26112, a 23.2% advantage. The data suggests the 356H is the superior choice for rendering, video encoding, and any workload that scales across many threads.

The Intel Core i7-14701E wins the remaining 5 benchmarks, and its victories are concentrated in specific areas. The most striking is Cinebench R23 single-core, where the 14701E scores 3133 versus 2040, a massive 53.6% lead. It also wins Cinebench R15 single-core with a narrower 4% margin, scoring 315 versus 303. The PassMark single-thread test shows a 5.7% advantage for the 14701E, with scores of 4305 and 4072. The 14701E also wins Cinebench R23 multi-core, scoring 22195 against 18395, a 20.7% lead. This suggests that while the 356H dominates in most multi-core scenarios, the 14701E has a significant edge in certain single-threaded and specific multi-core workloads.

Architecture Differences

The two processors are built on fundamentally different architectures. The Intel Core i7-14701E uses the Raptor Lake architecture, specifically the Raptor Lake-R variant, and is manufactured on a 10 nm process node. The Intel Core Ultra 7 356H uses the Panther Lake architecture and is built on a 3 nm process node. The die size for the 14701E is listed as 257 mm², while no die size is recorded for the 356H. The 14701E has 8 cores and 16 threads, while the 356H has 16 cores and 16 threads, indicating the 356H does not use simultaneous multithreading.

The cache hierarchies differ substantially. The 14701E has 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 33 MB of shared L3 cache. The 356H has 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache. This means the 14701E has significantly more L3 cache overall, while the 356H has a larger per-core L1 cache. The base clock of the 14701E is 2.60 GHz with a boost clock of 5.40 GHz, while the 356H has a base clock of 1.90 GHz and a boost clock of 4.70 GHz.

The platforms are also different. The 14701E uses Intel Socket 1700 and has a TDP of 65 watts, while the 356H uses Intel BGA 2540 and has a TDP of 25 watts. The 14701E supports both DDR4 and DDR5 memory, while the 356H supports DDR5 and LPDDR5X. The 356H has a recorded memory bandwidth of 115.2 GB/s, while no bandwidth figure is listed for the 14701E. The 14701E supports ECC memory, while the 356H does not. Both processors support PCIe Gen 5, but the 14701E has 16 lanes from the CPU, while the 356H has 12 lanes. The integrated graphics differ as well, with the 14701E featuring UHD Graphics 770 and the 356H featuring Intel Xe3 Graphics.

The Verdict

The benchmark data indicates that the Intel Core Ultra 7 356H is the more capable processor overall. Its average benchmark score is 41215, placing it in the 87th percentile of all CPUs. The Intel Core i7-14701E has an average score of 33206, placing it in the 83rd percentile. The 356H is the clear winner in 12 of 17 comparisons, including all major PassMark compute tests and most multi-core Cinebench tests. The 356H also sits at a higher performance tier, as its nearest rivals include the AMD Ryzen 9 5900X with a delta of -0.4%, while the 14701E is matched against the AMD Ryzen 9 PRO 6950H with a delta of 0%.

The Intel Core i7-14701E should be selected for specific single-threaded workloads where its clock speed advantage matters. Its 53.6% lead in Cinebench R23 single-core is substantial, and its 5.7% advantage in PassMark single-thread confirms this strength. The 14701E also wins Cinebench R23 multi-core by 20.7%, which is notable given that the 356H wins all other multi-core tests. This indicates the 14701E has superior performance in certain long-duration rendering tasks, despite the 356H winning Cinebench R15 and R20 multi-core tests.

The Intel Core Ultra 7 356H is the better choice for most users based on the data. It wins in data compression, encryption, extended instructions, prime number finding, floating point math, integer math, multithread, physics, and random string sorting. Its 46.2% lead in prime number finding and 43.6% lead in encryption are particularly large. The 25 watt TDP compared to 65 watts also suggests the 356H is more power-efficient, though the database does not record power consumption figures beyond TDP.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core Ultra 7 356H has an average benchmark score of 41215, which is higher than the Intel Core i7-14701E's average score of 33206.

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

A: The Intel Core i7-14701E wins this test with a score of 22195, which is 20.7% higher than the Intel Core Ultra 7 356H's score of 18395.

Q: What is the difference in process node between the two chips?

A: The Intel Core i7-14701E is manufactured on a 10 nm process node, while the Intel Core Ultra 7 356H is manufactured on a 3 nm process node.

Q: Which processor has more L3 cache?

A: The Intel Core i7-14701E has 33 MB of shared L3 cache, while the Intel Core Ultra 7 356H has 18 MB of shared L3 cache.

Q: Does the Intel Core Ultra 7 356H support ECC memory?

A: No, the database records that the Intel Core Ultra 7 356H does not support ECC memory, while the Intel Core i7-14701E does support ECC memory.

Q: Which processor wins the PassMark data encryption benchmark?

A: The Intel Core Ultra 7 356H wins with a score of 26345, which is 43.6% higher than the Intel Core i7-14701E's score of 14862.

Head-to-Head Benchmarks

The largest win for the Intel Core i7-14701E comes in Cinebench R23 single-core. The 14701E scores 3133, while the 356H scores 2040, giving the 14701E a 53.6% advantage. This is the biggest delta in either direction across all recorded benchmarks. The 14701E also wins Cinebench R23 multi-core by 20.7%, scoring 22195 versus 18395. The PassMark single-thread test shows a 5.7% win for the 14701E, with scores of 4305 and 4072. The Cinebench R15 single-core test is the closest result, with the 14701E winning by 4%, scoring 315 versus 303.

The Intel Core Ultra 7 356H has several large wins. The biggest is in PassMark find prime numbers, where the 356H scores 327 versus 176, a 46.2% lead. In data encryption, the 356H leads by 43.6%, scoring 26345 versus 14862. The floating point math test shows a 40% advantage for the 356H, with scores of 103128 and 61873. The extended instructions test has the 356H winning by 33.6%, scoring 27898 versus 18528. The random string sorting test shows a 28.9% lead for the 356H, with scores of 40990 and 29158.

The Cinebench R15 multi-core test shows the 356H winning by 26.8%, scoring 3055 versus 2237. The Cinebench R20 multi-core test has the 356H ahead by 23.3%, scoring 12153 versus 9321. The PassMark multithread test shows a 23.2% advantage for the 356H, with scores of 33978 and 26112. The Cinebench R20 single-core test also goes to the 356H by 23.3%, scoring 1715 versus 1315. The PassMark physics test shows the 356H winning by 17.1%, scoring 2895 versus 2399. The data compression test has the 356H ahead by 15.8%, scoring 336177 versus 282939. The smallest win for the 356H is in integer math, where it leads by 2.1%, scoring 83111 versus 81325.

Specification Differences

The Intel Core i7-14701E has 8 cores and 16 threads, while the Intel Core Ultra 7 356H has 16 cores and 16 threads. The base clock of the 14701E is 2.60 GHz, while the 356H has a base clock of 1.90 GHz. The boost clock of the 14701E is 5.40 GHz, while the 356H has a boost clock of 4.70 GHz. The TDP of the 14701E is 65 watts, while the 356H has a TDP of 25 watts.

The 14701E uses Intel Socket 1700, while the 356H uses Intel BGA 2540. The architecture differs, with the 14701E using Raptor Lake and the 356H using Panther Lake. The process node for the 14701E is 10 nm, while the 356H uses 3 nm. The die size of the 14701E is 257 mm², while no die size is recorded for the 356H.

The cache configuration differs significantly. The 14701E has 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 33 MB of shared L3 cache. The 356H has 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache. Memory support also differs, with the 14701E supporting DDR4 and DDR5, while the 356H supports DDR5 and LPDDR5X. The 356H has a recorded memory bandwidth of 115.2 GB/s, while no bandwidth is listed for the 14701E. ECC memory support is present on the 14701E but absent on the 356H. The PCIe lanes differ, with the 14701E offering 16 Gen 5 lanes from the CPU, while the 356H offers 12 Gen 5 lanes. The integrated graphics are different, with the 14701E featuring UHD Graphics 770 and the 356H featuring Intel Xe3 Graphics. The market segment differs as well, with the 14701E being a desktop processor and the 356H being a mobile processor.