Intel Core Ultra 7 356H vs Intel Processor 300T Comparison

Intel Core Ultra 7 356H vs Intel Processor 300T

Where Each One Wins

The benchmark data available for these two processors is one-sided: the Intel Core Ultra 7 356H has a full set of recorded test scores, while the Intel Processor 300T has no benchmark entries in the database. This means every measured performance comparison falls to the Core Ultra 7 356H by default. In practical terms, the 356H is a mobile processor with 16 cores and 16 threads, while the 300T is a desktop part with 2 cores and 4 threads. For any workload that scales with core count or thread count, the 356H is the only contender with measured data.

The Core Ultra 7 356H sits at the 87th percentile among all CPUs in the database, which places it well above the midpoint. The Intel Processor 300T, by contrast, sits at the 50th percentile, meaning half of all recorded CPUs score above it and half below. The 356H also carries an average benchmark score of 41,215, while the 300T has no average benchmark score recorded. For single-threaded work, the 356H scores 4,072 in PassMark single-thread tests, which indicates strong per-core performance from a mobile chip. The 300T has no comparable recorded figure, so the data cannot confirm a win for it in any tested category.

The use-case split is clear from the specifications and the recorded data. The 356H is designed for mobile computing with a 25 W TDP, while the 300T is a desktop processor with a 35 W TDP. The 356H supports DDR5 and LPDDR5X memory, the 300T supports DDR4 and DDR5. The 356H includes Intel Xe3 Graphics, the 300T uses UHD Graphics 710. The 356H is built on a 3 nm process, the 300T on a 10 nm process. Every measured benchmark favors the 356H, and the architectural differences reinforce that pattern.

Architecture Differences

The two processors come from different Intel architectures and are built for different sockets. The Core Ultra 7 356H uses the Panther Lake architecture, specifically Panther Lake-H, with a codename of Panther Lake. It fits into Intel BGA 2540, a mobile socket. The Processor 300T uses Raptor Lake, specifically Raptor Lake-S, and fits into Intel Socket 1700, a desktop socket. The 356H is part of the Core Ultra Series 3 and belongs to the Ultra 7 generation. The 300T is simply labeled Intel Processor, with no series designation.

The process nodes differ substantially. The 356H is fabricated on a 3 nm process at Intel's foundry. The 300T is on a 10 nm process, also at Intel. The 356H has a die size that is not recorded in the database, while the 300T has a die size of 163 mm². The transistor counts for both are not listed.

Cache layouts are also different. 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. The 300T has 80 KB of L1 cache per core, 1.25 MB of L2 cache per core, and 6 MB of shared L3 cache. The 356H has more than triple the L3 cache of the 300T, and double the L2 cache per core.

Memory support diverges as well. The 356H supports DDR5 and LPDDR5X memory on a dual-channel bus, with a recorded memory bandwidth of 115.2 GB/s. The 300T supports DDR4 and DDR5 on a dual-channel bus, but no memory bandwidth figure is recorded for it. Neither processor supports ECC memory. PCIe connectivity differs: the 356H provides Gen 5 with 12 lanes from the CPU, while the 300T provides Gen 5 with 16 lanes from the CPU.

Clock speeds show a different design philosophy. The 356H has a base clock of 1.90 GHz and a boost clock of 4.70 GHz. The 300T has a base clock of 3.40 GHz and no boost clock recorded in the database. The higher base clock on the 300T suggests a simpler, fixed-speed design, while the 356H relies on boosting to reach higher frequencies.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark entries between these two processors. The wins count is 0 for both sides. However, the Core Ultra 7 356H has a complete set of individual benchmark scores, while the Intel Processor 300T has none. The measured data therefore shows the 356H as the only processor with verified performance numbers.

Looking at the 356H's recorded scores provides context for what it achieves. In Cinebench R15 multicore, it scores 3,055 points, and in single-core it scores 303 points. Cinebench R20 multicore yields 12,153 points, and single-core yields 1,715 points. Cinebench R23 multicore reaches 18,395 points, and single-core reaches 2,040 points. These numbers indicate strong multicore performance for a 25 W mobile processor.

PassMark results for the 356H cover a range of workloads. Data compression scores 336,177, data encryption scores 26,345, extended instructions score 27,898, and finding prime numbers scores 327. Floating-point math scores 103,128, integer math scores 83,111, and multithread performance scores 33,978. Physics scores 2,895, random string sorting scores 40,990, and single-thread performance scores 4,072.

The nearest rivals for the 356H provide reference points. The AMD Ryzen AI 5 PRO 440 has an average score of 41,208, which is essentially identical to the 356H's 41,215, a delta of 0 percent. The Intel Core Ultra 7 366H scores 41,263, putting the 356H 0.1 percent behind. The AMD Ryzen 9 5900X scores 41,376, putting the 356H 0.4 percent behind. The Intel Core Ultra X7 358H scores 40,967, putting the 356H 0.6 percent ahead. These deltas are small, indicating that the 356H sits in a tightly packed performance band.

The 356H's 87th percentile ranking among all CPUs confirms that its recorded scores place it in the upper tier of the database. The 300T's 50th percentile ranking, with no recorded benchmark scores, leaves its actual performance unverified. The data shows a clear gap in available evidence, and the architectural differences support the conclusion that the 356H is the stronger processor in every measured category.

The Verdict

The data supports a straightforward conclusion: the Intel Core Ultra 7 356H is the processor to pick for anyone needing measured performance, particularly in mobile systems. It has 16 cores, 16 threads, a boost clock of 4.70 GHz, and a full set of benchmark scores that place it at the 87th percentile. Its average benchmark score of 41,215 puts it in the same range as the AMD Ryzen 9 5900X, a desktop processor with a much higher TDP. The 356H achieves this with a 25 W TDP, which indicates strong efficiency from the 3 nm process.

The Intel Processor 300T is a desktop part with 2 cores and 4 threads, a base clock of 3.40 GHz, and no boost clock recorded. It has no benchmark scores in the database, so its performance cannot be verified against the 356H. Its 50th percentile ranking suggests it sits near the middle of all CPUs, but without recorded test data, that ranking carries limited analytical weight. Its 10 nm process and 35 W TDP indicate an older, simpler design.

For a laptop or mobile workstation, the 356H is the only choice with recorded data. For a low-cost desktop build, the 300T offers a dual-channel memory controller, DDR4 and DDR5 support, and 16 PCIe Gen 5 lanes, but the absence of benchmark scores means no measured proof of its capabilities. The 356H also includes Intel Xe3 Graphics, which is a newer integrated GPU than the 300T's UHD Graphics 710.

The launch MSRP for the 300T is $82. The 356H has no recorded launch MSRP. The 300T is a desktop processor on Socket 1700, while the 356H is mobile on BGA 2540, so they are not directly interchangeable in a system. The 356H is the processor with the recorded performance data, the higher core count, the larger cache, the newer architecture, and the higher percentile ranking. The 300T is the processor with the lower core count, the smaller cache, the older architecture, and no recorded benchmarks.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core Ultra 7 356H has 16 cores and 16 threads. The Intel Processor 300T has 2 cores and 4 threads.

Q: What is the difference in L3 cache capacity?

A: The Core Ultra 7 356H has 18 MB of shared L3 cache. The Processor 300T has 6 MB of shared L3 cache.

Q: Do both processors support DDR5 memory?

A: Yes, both support DDR5. The Core Ultra 7 356H also supports LPDDR5X, while the Processor 300T also supports DDR4.

Q: Which processor has a higher base clock?

A: The Intel Processor 300T has a base clock of 3.40 GHz, which is higher than the Core Ultra 7 356H's base clock of 1.90 GHz. The 356H has a boost clock of 4.70 GHz, while the 300T has no boost clock recorded.

Q: What are the process nodes for each processor?

A: The Core Ultra 7 356H is built on a 3 nm process. The Processor 300T is built on a 10 nm process.

Q: What is the 356H's average benchmark score?

A: The Core Ultra 7 356H has an average benchmark score of 41,215. The Processor 300T has no recorded average benchmark score.

Specification Differences

| Specification | Intel Core Ultra 7 356H | Intel Processor 300T |

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

| Cores | 16 | 2 |

| Threads | 16 | 4 |

| Base Clock | 1.90 GHz | 3.40 GHz |

| Boost Clock | 4.70 GHz | None recorded |

| TDP | 25 W | 35 W |

| Socket | Intel BGA 2540 | Intel Socket 1700 |

| Architecture | Panther Lake | Raptor Lake |

| Process Node | 3 nm | 10 nm |

| Die Size | Not recorded | 163 mm² |

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

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

| L3 Cache | 18 MB (shared) | 6 MB (shared) |

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

| Memory Bandwidth | 115.2 GB/s | None recorded |

| PCIe | Gen 5, 12 Lanes (CPU only) | Gen 5, 16 Lanes (CPU only) |

| Integrated Graphics | Intel Xe3 Graphics | UHD Graphics 710 |

| Market Segment | Mobile | Desktop |

| Production Status | Active | Active |

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

| Launch MSRP | None recorded | $82 |

| Multiplier Unlocked | No | No |

| Part Number | SA4RGQ9EU | SRN3K |