Intel Core Ultra 5 250K Plus vs Intel Processor 300T Comparison

Head-to-Head Benchmarks

The recorded data presents an unusual comparison challenge: the Intel Core Ultra 5 250K Plus has a complete set of benchmark scores, while the Intel Processor 300T has no recorded benchmark entries in the database. This means the head-to-head comparison relies entirely on the Ultra 5 250K Plus's absolute scores and its percentile ranking against all CPUs.

The Core Ultra 5 250K Plus delivers a Cinebench R23 multicore score of 30,867 and a single-core score of 2,261. In Cinebench R20, the multicore result is 18,442 with a single-core score of 2,603. The older Cinebench R15 test shows 4,640 multicore and 328 single-core. These results place the chip at the 93rd percentile among all CPUs in the database.

PassMark results reinforce the multicore strength. The multithread score sits at 51,596, while integer math reaches 125,091 and floating point math hits 162,692. Data compression scores 568,721, data encryption records 42,144, and extended instructions produce 44,565. Random string sorting achieves 69,090, and the find prime numbers test returns 486. Single-thread performance in PassMark is 4,757.

The database shows an average benchmark score of 66,855 for the Ultra 5 250K Plus. Its nearest rivals in the database include the AMD EPYC 4465P with an average score of 66,925, a delta of -0.1 percent relative to the Ultra 5, meaning the EPYC sits essentially at parity. The Intel Xeon 6515P scores 67,006, which is 0.2 percent higher. The Intel Core Ultra 9 275HX scores 67,469, 0.9 percent higher. The closest sibling, the Intel Core Ultra 5 250KF Plus, scores 66,159, which is 1.1 percent lower than the 250K Plus.

The Intel Processor 300T has no benchmark scores in the database, no average score, and no rival list. Its percentile ranking is 50, which is the median position. Without recorded measurements, the data cannot quantify its performance relative to the Core Ultra 5 250K Plus. The comparison is therefore asymmetrical: one chip has extensive measurements, the other has none.

Architecture Differences

The two processors come from different design generations and manufacturing approaches. The Intel Core Ultra 5 250K Plus belongs to the Core Ultra Series 2, uses the Arrow Lake Refresh codename, and is built on a 3 nm process at TSMC. The Intel Processor 300T uses the Raptor Lake architecture, specifically Raptor Lake-S, and is built on a 10 nm process at Intel's own foundry.

Core counts diverge sharply. The Ultra 5 250K Plus has 18 cores and 18 threads, indicating a design without hyperthreading. The Processor 300T has 2 cores and 4 threads, indicating hyperthreading is enabled. The cache hierarchy also differs. The Ultra 5 carries 192 KB of L1 per core, 3 MB of L2 per core, and 30 MB of shared L3 cache. The Processor 300T carries 80 KB of L1 per core, 1.25 MB of L2 per core, and 6 MB of shared L3.

Clock behavior differs as well. The Ultra 5 has a base clock of 4.20 GHz and a boost clock of 5.30 GHz. The Processor 300T has a base clock of 3.40 GHz and no recorded boost clock. Thermal design power reflects the scale difference: the Ultra 5 is rated at 125 W, while the Processor 300T is rated at 35 W.

The transistor counts tell a similar story. The Ultra 5 integrates 17,800 million transistors on a 243 mm² die. The Processor 300T has no recorded transistor count, but its die size is 163 mm². The process node difference, 3 nm versus 10 nm, explains how the Ultra 5 packs far more transistors into a larger die area.

Memory support also separates the two. The Ultra 5 supports DDR5 only, with dual-channel memory and a recorded bandwidth of 115.2 GB/s. The Processor 300T supports both DDR4 and DDR5, also dual-channel, but has no recorded memory bandwidth figure. ECC memory support is present on the Ultra 5 but absent on the Processor 300T.

PCIe connectivity shows another gap. The Ultra 5 provides Gen 5 with 20 lanes from the CPU. The Processor 300T provides Gen 5 with 16 lanes from the CPU. Integrated graphics differ as well: the Ultra 5 uses Arc Xe-LPG Graphics with 64 execution units, while the Processor 300T uses UHD Graphics 710.

Release timing and market positioning also differ. The Ultra 5 was released in March 2026 and has an unlocked multiplier. The Processor 300T was released in January 2024 and has a locked multiplier. Both target the desktop segment and remain in active production.

Where Each One Wins

The Core Ultra 5 250K Plus wins in every measurable category because it is the only one of the two with recorded benchmark data. Its multicore results are substantial: 30,867 in Cinebench R23, 18,442 in Cinebench R20, and 4,640 in Cinebench R15. The PassMark multithread score of 51,596 and the integer math score of 125,091 point to strong parallel workload performance. The data shows a CPU designed for heavy compute tasks.

Single-thread performance is also strong, though less dominant relative to its own multicore scores. The Cinebench R23 single-core result of 2,261 and the PassMark single-thread score of 4,757 indicate the chip does not sacrifice single-thread responsiveness for its multicore capability. The 93rd percentile ranking among all CPUs reinforces this position.

The Intel Processor 300T wins in power efficiency and platform flexibility, but only from specification data, not benchmark measurements. Its 35 W TDP is dramatically lower than the Ultra 5's 125 W rating. It supports both DDR4 and DDR5 memory, which could allow reuse of older memory modules. Its 2 cores and 4 threads are sufficient for lightweight workloads, and its smaller 163 mm² die suggests lower manufacturing cost per unit. The launch MSRP for the Processor 300T is $82, while the Ultra 5 has a launch MSRP of $199. However, the database contains no performance measurements for the Processor 300T, so its actual workload behavior cannot be assessed.

For users whose priorities align with the recorded data, the Ultra 5 250K Plus dominates every benchmark category. For users whose priorities align with low power draw and memory flexibility, the Processor 300T has specification-level advantages. The absence of benchmarks for the 300T means the database cannot confirm or deny its real-world performance.

The Verdict

The recorded data makes the choice clear for performance-oriented builds. The Intel Core Ultra 5 250K Plus has extensive benchmark results that place it at the 93rd percentile among all CPUs. Its average benchmark score of 66,855 puts it within 1 percent of several server-class processors, including the AMD EPYC 4465P at -0.1 percent delta and the Intel Xeon 6515P at -0.2 percent delta. The only rival with a larger positive delta is the Intel Core Ultra 9 275HX at -0.9 percent, meaning the Ultra 9 is only 0.9 percent faster on average. The Ultra 5 250K Plus is 1.1 percent faster than its direct sibling, the 250KF Plus.

The Intel Processor 300T cannot be evaluated on performance because it has no recorded benchmark scores. Its 50th percentile ranking is the median by default, not a measured position. Its specification profile, 2 cores, 4 threads, 3.40 GHz base clock, 6 MB L3 cache, and 35 W TDP, suggests a low-power entry-level desktop processor. The lack of a boost clock in the database further limits its performance characterization.

The Ultra 5 250K Plus is the appropriate choice for workloads that benefit from 18 cores, 30 MB of L3 cache, high memory bandwidth, and ECC support. The Processor 300T is the appropriate choice for builds that prioritize minimal power consumption, support for older DDR4 memory, and a lower launch MSRP of $82. The data does not support any performance-based recommendation for the 300T because no measurements exist.

FAQ

Q: What is the average benchmark score of the Intel Core Ultra 5 250K Plus?

A: The recorded average benchmark score is 66,855, which places it at the 93rd percentile among all CPUs in the database.

Q: Does the Intel Processor 300T have any benchmark scores in the database?

A: No. The database lists no benchmark entries for the Intel Processor 300T, and its average benchmark score is recorded as 0.

Q: How does the Core Ultra 5 250K Plus compare to its closest rival, the AMD EPYC 4465P?

A: The AMD EPYC 4465P has an average score of 66,925, which is 0.1 percent higher than the Core Ultra 5 250K Plus. The two are essentially at parity.

Q: What memory types does each processor support?

A: The Core Ultra 5 250K Plus supports DDR5 only. The Intel Processor 300T supports both DDR4 and DDR5.

Q: What are the core and thread counts for each processor?

A: The Core Ultra 5 250K Plus has 18 cores and 18 threads. The Intel Processor 300T has 2 cores and 4 threads.

Q: Does either processor support ECC memory?

A: The Core Ultra 5 250K Plus supports ECC memory. The Intel Processor 300T does not.

Specification Differences

| Field | Intel Core Ultra 5 250K Plus | Intel Processor 300T |

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

| Cores | 18 | 2 |

| Threads | 18 | 4 |

| Base Clock | 4.20 GHz | 3.40 GHz |

| Boost Clock | 5.30 GHz | None recorded |

| TDP | 125 W | 35 W |

| Socket | Intel Socket 1851 | Intel Socket 1700 |

| Codename | Arrow Lake Refresh | Raptor Lake-S |

| Process Node | 3 nm | 10 nm |

| Foundry | TSMC | Intel |

| Transistors | 17,800 million | None recorded |

| Die Size | 243 mm² | 163 mm² |

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

| L2 Cache | 3 MB per core | 1.25 MB per core |

| L3 Cache | 30 MB shared | 6 MB shared |

| Memory Support | DDR5 | DDR4, DDR5 |

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

| ECC Memory | Yes | No |

| PCIe | Gen 5, 20 Lanes | Gen 5, 16 Lanes |

| Integrated Graphics | Arc Xe-LPG Graphics 64EU | UHD Graphics 710 |

| Release Date | 2026-03-10 | 2024-01-07 |

| Launch MSRP | $199 | $82 |

| Multiplier Unlocked | Yes | No |

| Part Number | SA4UZ | SRN3K |

| Avg Benchmark Score | 66,855 | 0 |

| Percentile vs All CPUs | 93 | 50 |