Intel Core 3 100UL vs Intel Core Ultra 7 356H Comparison

FAQ

Q: How do the core counts differ between the Intel Core 3 100UL and the Intel Core Ultra 7 356H?

A: The Core 3 100UL has 6 cores and 8 threads, while the Core Ultra 7 356H has 16 cores and 16 threads. The Ultra 7 also runs a higher 1.90 GHz base clock and a 4.70 GHz boost clock versus 1.20 GHz and 4.50 GHz on the Core 3.

Q: Which processor uses a more advanced manufacturing process?

A: The Core Ultra 7 356H is built on a 3 nm process node from Intel, whereas the Core 3 100UL uses a 10 nm node. The smaller node contributes to the Ultra 7's higher transistor density and efficiency characteristics.

Q: What are the cache configurations for each chip?

A: The Core 3 100UL carries 80 KB of L1 per core, 1.25 MB of L2 per core, and 10 MB of shared L3. The Core Ultra 7 356H has 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3.

Q: How does memory support differ between the two processors?

A: The Core 3 100UL supports both DDR4 and DDR5 memory in a dual-channel configuration. The Core Ultra 7 356H supports DDR5 and LPDDR5X, also dual-channel, but adds a recorded memory bandwidth of 115.2 GB/s.

Q: What PCIe capabilities does each CPU offer?

A: The Core 3 100UL provides PCIe Gen 4 with 8 lanes (CPU only). The Core Ultra 7 356H provides PCIe Gen 5 with 12 lanes (CPU only), offering newer generations and more lanes.

Q: How do the two compare in overall benchmark standing?

A: The Core Ultra 7 356H holds an 87th percentile ranking among all CPUs and an average benchmark score of 41215. The Core 3 100UL has a 50th percentile ranking, with no recorded average benchmark score in the database.

Architecture Differences

The two processors represent distinct architectural generations from Intel. The Core 3 100UL is based on Raptor Lake, specifically the Raptor Lake-PS codename, and belongs to the Core 3 generation. It is a desktop-class part using the Intel Socket 1700. The Core Ultra 7 356H, in contrast, belongs to the Core Ultra Series 3, uses the Panther Lake architecture with the Panther Lake-H codename, and is a mobile processor on the Intel BGA 2540 socket.

The manufacturing process marks a major divergence. The Core 3 100UL uses a 10 nm node, while the Core Ultra 7 356H uses a 3 nm node. Both are fabricated by Intel, but the newer node on the Ultra 7 allows for a substantially larger core complex: 16 cores and 16 threads versus 6 cores and 8 threads on the Core 3.

Cache hierarchies differ significantly. The Core 3 has 80 KB of L1 per core, 1.25 MB of L2 per core, and a shared 10 MB L3. The Ultra 7 has more than double the L1 per core at 192 KB, 2.5 MB of L2 per core, and 18 MB of shared L3. The larger caches on the Ultra 7 align with its higher thread count and more demanding mobile workloads.

Memory support also separates the two. The Core 3 supports DDR4 and DDR5, while the Ultra 7 supports DDR5 and LPDDR5X with a measured memory bandwidth of 115.2 GB/s. The Core 3 does not have a memory bandwidth figure recorded in the database. Both run dual-channel memory buses.

PCIe connectivity favors the Ultra 7. It uses PCIe Gen 5 with 12 CPU lanes, while the Core 3 uses PCIe Gen 4 with 8 CPU lanes. This gives the Ultra 7 both a newer standard and more direct CPU-attached lanes.

Integrated graphics differ as well. The Core 3 uses UHD Graphics 64EU, while the Ultra 7 uses Intel Xe3 Graphics. The database does not compare their graphics performance directly.

The release dates show a generational gap. The Core 3 100UL launched on 2024-04-07, while the Core Ultra 7 356H launched on 2026-01-04. The Ultra 7 is the newer design by roughly a year and a half.

Thermal design power also differs: the Core 3 is rated at 15 W, while the Ultra 7 is rated at 25 W. The Ultra 7 uses a higher power envelope, consistent with its larger core count and higher boost clock.

Head-to-Head Benchmarks

The database records no direct head-to-head benchmark results between the Intel Core 3 100UL and the Intel Core Ultra 7 356H. However, the Core Ultra 7 356H has a full set of benchmark scores, and its nearest rivals provide context for its performance level.

In Cinebench R15, the Ultra 7 scores 3055 in multicore and 303 in singlecore. In Cinebench R20, it scores 12153 multicore and 1715 singlecore. In Cinebench R23, it scores 18395 multicore and 2040 singlecore. These results indicate strong scaling from its 16 cores and 16 threads.

PassMark results for the Ultra 7 show broad workload coverage. It scores 336177 in data compression, 26345 in data encryption, and 27898 in extended instructions. In prime number finding, it scores 327. Floating point math scores 103128, and integer math scores 83111. The multithread score is 33978, with physics at 2895 and random string sorting at 40990. Single-thread performance records 4072 in both PassMark single thread tests.

The Ultra 7's average benchmark score of 41215 places it in the 87th percentile of all CPUs. Its nearest rival, the AMD Ryzen AI 5 PRO 440, scores 41208, a delta of 0 percent, meaning the two are effectively tied. The Intel Core Ultra 7 366H scores 41263, a delta of -0.1 percent, so the 356H trails that chip by a negligible margin. The AMD Ryzen 9 5900X scores 41376, a delta of -0.4 percent, indicating the 356H is about 0.4 percent behind that desktop processor. The Intel Core Ultra X7 358H scores 40967, a delta of 0.6 percent, meaning the 356H is about 0.6 percent ahead of that part.

Since the Core 3 100UL has no recorded benchmark scores or nearest rivals, the database provides no direct performance comparison between the two. The Core 3's 50th percentile ranking, however, places it at the median of all CPUs, while the Ultra 7 sits well above at 87th.

The data shows that the Ultra 7 delivers strong multicore and singlecore results in Cinebench, with its R23 multicore score of 18395 reflecting the benefit of 16 cores. Its PassMark multithread score of 33978 further confirms heavy parallel workload capability. The single-thread score of 4072 indicates solid per-core performance despite the lower 1.90 GHz base clock, aided by the 4.70 GHz boost.

Without direct head-to-head results, the comparison relies on the Ultra 7's measured scores and the Core 3's absence of scores. The Core 3's 6 cores and 8 threads suggest it targets lighter workloads, while the Ultra 7's 16 threads and larger cache target more demanding applications.

The Verdict

The data indicates the Intel Core Ultra 7 356H is the significantly more capable processor for compute-intensive workloads. Its 16 cores, 16 threads, 18 MB of L3 cache, and 87th percentile ranking place it in a much higher performance tier than the Core 3 100UL, which sits at the 50th percentile with no recorded benchmark scores.

The Ultra 7's benchmark results confirm this. Its Cinebench R23 multicore score of 18395 and PassMark multithread score of 33978 reflect strong parallel performance. Its nearest rivals, including the AMD Ryzen 9 5900X and Intel Core Ultra 7 366H, sit within 0.4 percent, showing the 356H competes at a high level.

For users building a desktop system around the Intel Socket 1700, the Core 3 100UL offers a 6-core, 8-thread Raptor Lake part with DDR4 and DDR5 support. Its 15 W TDP suggests low-power operation, but its benchmark footprint is absent from the database.

For mobile users needing substantial compute capability, the Core Ultra 7 356H is the clear choice based on the recorded data. Its 3 nm process, 16 cores, PCIe Gen 5 support, and measured memory bandwidth of 115.2 GB/s give it advantages across architecture, connectivity, and performance.

The database does not support a case for the Core 3 100UL over the Ultra 7 in raw performance. The Ultra 7 wins on core count, cache size, process node, PCIe generation, memory bandwidth, and every recorded benchmark metric. The Core 3's only recorded advantages are a lower TDP of 15 W versus 25 W and support for DDR4 memory.

Specification Differences

| Specification | Intel Core 3 100UL | Intel Core Ultra 7 356H |

|----------------|--------------------|-------------------------|

| Architecture | Raptor Lake | Panther Lake |

| Codename | Raptor Lake-PS | Panther Lake |

| Generation | Core 3 (Raptor Lake-PS) | Ultra 7 (Panther Lake-H) |

| Process Node | 10 nm | 3 nm |

| Cores | 6 | 16 |

| Threads | 8 | 16 |

| Base Clock | 1.20 GHz | 1.90 GHz |

| Boost Clock | 4.50 GHz | 4.70 GHz |

| TDP | 15 W | 25 W |

| Socket | Intel Socket 1700 | Intel BGA 2540 |

| L1 Cache | 80 KB (per core) | 192 KB (per core) |

| L2 Cache | 1.25 MB (per core) | 2.5 MB (per core) |

| L3 Cache | 10 MB (shared) | 18 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR5, LPDDR5X |

| Memory Bandwidth | Not recorded | 115.2 GB/s |

| PCIe | Gen 4, 8 Lanes (CPU only) | Gen 5, 12 Lanes (CPU only) |

| Integrated Graphics | UHD Graphics 64EU | Intel Xe3 Graphics |

| Market Segment | Desktop | Mobile |

| Release Date | 2024-04-07 | 2026-01-04 |

| Part Number | unknown | SA4RGQ9EU |

| Percentile | 50 | 87 |

| Average Benchmark Score | 0 | 41215 |

The two processors differ in every major architectural field. The Ultra 7 uses a newer node, more cores, more cache, faster clocks, a higher TDP, a different socket, and newer PCIe and memory standards. The Core 3 is a desktop part with a lower power envelope and older memory support.

Where Each One Wins

The Intel Core Ultra 7 356H wins in all recorded performance categories. Its Cinebench R23 multicore score of 18395, R20 multicore of 12153, and R15 multicore of 3055 all demonstrate strong parallel processing. Its PassMark multithread score of 33978 and floating point math score of 103128 further confirm heavy compute capability. The single-thread score of 4072 in PassMark and 2040 in Cinebench R23 indicate competitive per-core performance as well.

The Ultra 7 also wins on architecture. Its 3 nm process node, 16 cores, 18 MB L3, PCIe Gen 5 with 12 lanes, and 115.2 GB/s memory bandwidth give it clear advantages for modern workloads. Its 87th percentile ranking and average score of 41215 place it near the AMD Ryzen AI 5 PRO 440 and AMD Ryzen 9 5900X, both within 0.4 percent.

The Core 3 100UL wins only in specific non-performance fields. Its 15 W TDP is lower than the Ultra 7's 25 W, suggesting a lower power draw. It supports DDR4 memory, which may be relevant for users reusing existing DDR4 modules. Its Intel Socket 1700 form factor targets desktop builds, whereas the Ultra 7 is a mobile BGA part. The Core 3's 50th percentile ranking indicates it sits at the median, but without benchmark scores, its workload-specific strengths cannot be quantified.

For workloads like data compression, where the Ultra 7 scores 336177, or integer math at 83111, the Ultra 7 is the only choice with recorded evidence. For random string sorting at 40990 and physics at 2895, the Ultra 7 again shows capability. The Core 3 has no corresponding measurements in the database.

The database shows a clear split: the Ultra 7 dominates all measurable compute metrics, while the Core 3 offers a lower-power desktop option with older memory support. Users needing maximum threaded performance should select the Ultra 7 based on its benchmark results and percentile standing. Users constrained to the Intel Socket 1700 platform or requiring DDR4 compatibility would select the Core 3, but the data provides no performance evidence to support that choice beyond its platform fit.