Intel Core 9 273PE vs Intel Processor U300L Comparison

FAQ

Q: What are the core and thread counts of the Intel Core 9 273PE and the Intel Processor U300L?

A: The Intel Core 9 273PE has 12 cores and 24 threads, while the Intel Processor U300L has 5 cores and 6 threads.

Q: How do the clock speeds compare between the two processors?

A: The Intel Core 9 273PE has a base clock of 2.30 GHz and a boost clock of 5.70 GHz. The Intel Processor U300L has a base clock of 1.20 GHz and a boost clock of 4.40 GHz.

Q: What is the difference in L3 cache capacity?

A: The Intel Core 9 273PE features 36 MB of shared L3 cache, whereas the Intel Processor U300L has 8 MB of shared L3 cache.

Q: Do both processors support the same memory types?

A: Yes, both support DDR4 and DDR5 memory in a dual-channel configuration. The Intel Core 9 273PE supports ECC memory, while the Intel Processor U300L does not.

Q: What are the integrated graphics solutions?

A: The Intel Core 9 273PE uses UHD Graphics 730, while the Intel Processor U300L uses UHD Graphics 48EU.

Q: How do the processors compare in terms of PCIe support?

A: The Intel Core 9 273PE supports PCIe Gen 5 with 16 lanes (CPU only), while the Intel Processor U300L supports PCIe Gen 4 with 8 lanes (CPU only).

Architecture Differences

The Intel Core 9 273PE is built on the Bartlett Lake codename and belongs to the Core 9 generation, while the Intel Processor U300L is based on the Raptor Lake architecture with the Raptor Lake-PS codename. Both processors are manufactured by Intel on a 10 nm process node.

The Core 9 273PE is a desktop segment processor with a 65 W TDP, while the U300L is a mobile segment processor with a 15 W TDP. This substantial thermal design power difference frames their respective performance envelopes. The Core 9 273PE uses 12 cores with 24 threads, providing a high degree of parallel processing capability. The U300L, by contrast, uses 5 cores with 6 threads, indicating a hybrid configuration with fewer execution threads.

Cache hierarchy differs notably between the two. Both share an 80 KB L1 cache per core, but the L2 cache differs: the Core 9 273PE has 2 MB per core, while the U300L has 1.25 MB per core. The shared L3 cache is 36 MB on the Core 9 273PE versus 8 MB on the U300L, a 28 MB gap that significantly affects data-heavy workloads.

Memory support is similar with both supporting DDR4 and DDR5 in dual-channel mode. The Core 9 273PE has a memory bandwidth of 89.6 GB/s and supports ECC memory, while the U300L does not list a memory bandwidth figure and lacks ECC support. PCIe connectivity also diverges: the Core 9 273PE provides Gen 5 with 16 lanes, while the U300L provides Gen 4 with 8 lanes. The integrated graphics differ as well, with UHD Graphics 730 on the Core 9 273PE and UHD Graphics 48EU on the U300L.

Neither processor has an unlocked multiplier. The Core 9 273PE was released in March 2026, while the U300L was released in April 2024. The production status for both is listed as Active.

Head-to-Head Benchmarks

The benchmark database contains extensive measurements for the Intel Core 9 273PE, while the Intel Processor U300L has no recorded benchmark scores. Consequently, the head-to-head comparison relies on the Core 9 273PE's absolute scores and its standing against comparable processors in the database.

In Cinebench R15 multicore, the Core 9 273PE scores 3153, and in single core it scores 445. Cinebench R20 results show a multicore score of 13140 and a single core score of 1855. Cinebench R23 records a multicore score of 31288 and a single core score of 4417. These figures indicate strong multi-threaded performance driven by the 12-core, 24-thread configuration.

PassMark results further characterize the Core 9 273PE. Data compression scores 405885, data encryption scores 22719, and extended instructions score 24630. Find prime numbers scores 203, floating point math scores 107884, and integer math scores 139410. The multithread score is 36810, physics scores 3120, random string sorting scores 45098, and single thread scores 3650.

The Core 9 273PE holds a 90th percentile rank among all CPUs in the database, with an average benchmark score of 49845. Its nearest rivals provide context for this performance. The AMD Ryzen AI Max+ 388 has an average score of 49796, a delta of 0.1 percent relative to the Core 9 273PE, meaning they perform nearly identically. The Intel Core i5-14600KF scores 49394, which is 0.9 percent lower. The Intel Core i9-13980HX scores 50398, putting it 1.1 percent ahead. The AMD Ryzen AI 9 HX PRO 370 scores 50448, which is 1.2 percent ahead. These small deltas place the Core 9 273PE in a tightly contested performance band.

Since the U300L has no benchmark entries, no direct wins can be assigned to either processor. The data shows the Core 9 273PE as the only characterized part in this pairing, with a substantial average score of 49845 versus a zero average for the U300L. The U300L holds a 50th percentile rank among all CPUs, which indicates mid-pack positioning, but the absence of scores prevents a quantitative comparison.

The Verdict

The recorded data shows a clear performance hierarchy between these two processors. The Intel Core 9 273PE, with 12 cores, 24 threads, a 5.70 GHz boost clock, and 36 MB of L3 cache, delivers an average benchmark score of 49845 and ranks in the 90th percentile of all CPUs. Its nearest rivals, including the AMD Ryzen AI Max+ 388 and the Intel Core i5-14600KF, sit within 0.9 percent of its score, confirming that it competes at the high end of desktop performance.

The Intel Processor U300L, with 5 cores, 6 threads, a 4.40 GHz boost clock, and 8 MB of L3 cache, has no benchmark scores in the database and ranks in the 50th percentile. Its mobile segment designation and 15 W TDP indicate a lower-power design intended for different workloads than the desktop-oriented Core 9 273PE.

For users prioritizing multi-threaded compute, the Core 9 273PE is the only processor in this pairing with measured results, and those results are strong: a Cinebench R23 multicore score of 31288 and a PassMark multithread score of 36810. Its 24 threads and 36 MB of L3 cache position it for demanding applications. The U300L cannot be quantitatively compared due to missing data, but its fewer cores, threads, and cache, along with a lower boost clock, indicate a less capable part.

The choice between them depends on workload requirements. The Core 9 273PE suits scenarios requiring heavy parallel processing and high single-thread performance, as evidenced by its Cinebench R23 single core score of 4417 and PassMark single thread score of 3650. The U300L suits power-constrained environments, given its 15 W TDP, but its performance characteristics remain unmeasured in the database.

Specification Differences

| Specification | Intel Core 9 273PE | Intel Processor U300L |

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

| Cores | 12 | 5 |

| Threads | 24 | 6 |

| Base Clock | 2.30 GHz | 1.20 GHz |

| Boost Clock | 5.70 GHz | 4.40 GHz |

| TDP | 65 W | 15 W |

| Codename | Bartlett Lake | Raptor Lake-PS |

| Generation | Core 9 (Bartlett Lake) | Intel Processor (Raptor Lake) |

| Architecture | Not listed | Raptor Lake |

| L2 Cache | 2 MB (per core) | 1.25 MB (per core) |

| L3 Cache | 36 MB (shared) | 8 MB (shared) |

| Memory Bandwidth | 89.6 GB/s | Not listed |

| ECC Memory | Supported | Not supported |

| PCIe | Gen 5, 16 Lanes (CPU only) | Gen 4, 8 Lanes (CPU only) |

| Integrated Graphics | UHD Graphics 730 | UHD Graphics 48EU |

| Market Segment | Desktop | Mobile |

| Release Date | 2026-03-08 | 2024-04-07 |

| Launch MSRP | $549 | $107 |

| Part Number | SA4QD | SRPEKSRPEM |

Both processors use the Intel Socket 1700, are manufactured on a 10 nm process by Intel, support DDR4 and DDR5 memory in dual-channel mode, have 80 KB of L1 cache per core, are not multiplier unlocked, and have an Active production status. The Core 9 273PE has a launch MSRP of $549, and the U300L has a launch MSRP of $107.