Intel Core 9 273PTE vs Intel Core Ultra 5 245HX Comparison

Head-to-Head Benchmarks

The recorded data shows a decisive overall result: the Intel Core Ultra 5 245HX wins all 17 head-to-head benchmark comparisons against the Intel Core 9 273PTE. The largest advantage appears in prime number finding, where the Ultra 5 245HX scores 359 versus 142, a gap of 60.4%. Data encryption tells a similar story, with the Ultra 5 245HX at 30022 against 14253, a 52.5% lead. Floating point math favors the Ultra 5 245HX by 49.7% (120735 versus 60673), and extended instruction workloads show a 48.9% advantage (31212 versus 15952).

The Cinebench suite reinforces the pattern. In Cinebench R23 multi-core, the Ultra 5 245HX records 32358 against 20445 for the Core 9 273PTE, a 36.8% margin. Single-core R23 shows a similar 36.8% gap, with scores of 4568 and 2886. Cinebench R20 multi-core and single-core both repeat the 36.8% delta, at 13590 versus 8586 and 1918 versus 1212 respectively. Cinebench R15 multi-core and single-core follow the same 36.8% and 37% deltas, with the Ultra 5 245HX scoring 3261 and 460 against 2060 and 290.

PassMark multi-thread results place the Ultra 5 245HX at 38069 versus 24054, another 36.8% gap. Random string sorting shows a 39.2% advantage for the Ultra 5 245HX (47616 versus 28973), while data compression comes in at 393071 versus 258704, a 34.2% lead. The smallest margin in the entire comparison is in integer math, where the Ultra 5 245HX scores 92150 against 82411, a 10.6% edge. Physics testing shows a 24.1% gap (2526 versus 1917), and single-thread PassMark results give the Ultra 5 245HX a 23.4% lead (4481 versus 3433).

The Core 9 273PTE does not record a single winning benchmark in this data set. Its average benchmark score of 31143 places it in the 82nd percentile of all CPUs, while the Ultra 5 245HX averages 48287 and sits in the 90th percentile. The average score gap between the two parts is 55%, a substantial separation that appears across every measured workload category.

Architecture Differences

The two processors differ at nearly every architectural level. The Core 9 273PTE uses the Bartlett Lake codename on a 10 nm process fabricated by Intel. It presents 12 cores and 24 threads, with a base clock of 1.40 GHz and a boost clock of 5.50 GHz. The Ultra 5 245HX belongs to the Core Ultra Series 2, uses Arrow Lake-HX architecture, and moves to a 3 nm process fabricated by TSMC. It offers 14 cores but only 14 threads, with a base clock of 3.10 GHz and a boost clock of 5.10 GHz.

The thread count difference is notable: the Core 9 273PTE enables Hyper-Threading style parallelism with 24 threads from 12 cores, while the Ultra 5 245HX runs one thread per core. Despite fewer threads, the Ultra 5 245HX achieves higher raw performance in every recorded benchmark, indicating that its per-core efficiency and higher base clock compensate for the lack of simultaneous multithreading.

Cache configurations diverge sharply. The Core 9 273PTE provides 80 KB of L1 per core, 2 MB of L2 per core, and 36 MB of shared L3. The Ultra 5 245HX doubles the L1 to 192 KB per core, raises L2 to 3 MB per core, but reduces shared L3 to 24 MB. The larger per-core caches on the Ultra 5 245HX align with its higher single-thread scores, while the Core 9 273PTE relies on a larger L3 pool and more threads.

Memory support differs as well. The Core 9 273PTE accepts both DDR4 and DDR5 in a dual-channel configuration, with 89.6 GB/s of memory bandwidth and ECC support enabled. The Ultra 5 245HX supports DDR5 only, also dual-channel, but offers a higher memory bandwidth of 102.4 GB/s and no ECC. The higher memory bandwidth on the Ultra 5 245HX likely contributes to its strong showing in data compression and sorting workloads.

PCIe connectivity favors the Ultra 5 245HX, which provides Gen 5 with 20 CPU lanes, while the Core 9 273PTE offers Gen 5 with 16 CPU lanes. The integrated graphics also differ: the Core 9 273PTE uses UHD Graphics 730, while the Ultra 5 245HX carries Arc Xe-LPG Graphics with 48 execution units. The transistor count for the Ultra 5 245HX is listed at 17,800 million on a 243 mm² die, while the Core 9 273PTE does not have recorded transistor or die size data.

The Core 9 273PTE uses Intel Socket 1700 and targets the desktop market segment, with a locked multiplier. The Ultra 5 245HX uses Intel BGA 2114 and targets mobile, with an unlocked multiplier. The Core 9 273PTE launched in March 2026 with a launch MSRP of $549, while the Ultra 5 245HX launched in January 2025 and has no recorded launch MSRP. The Core 9 273PTE carries part number SA4QJ, and the Ultra 5 245HX uses SRVFM.

Where Each One Wins

Based on the recorded benchmarks, the Intel Core Ultra 5 245HX wins every workload category in this comparison. Its strongest relative edges appear in prime number finding (60.4% ahead), data encryption (52.5% ahead), floating point math (49.7% ahead), and extended instructions (48.9% ahead). These results point to workloads that stress arithmetic throughput and cryptographic operations, where the Ultra 5 245HX delivers the largest gains.

The Ultra 5 245HX also leads in rendering-style multi-core tasks. Cinebench R23 multi-core shows it at 32358 versus 20445, a 36.8% advantage that carries through all three Cinebench versions. Content creation workflows that rely on Cinebench-type rendering would see consistent improvement with the Ultra 5 245HX. Data compression trails slightly at 34.2% ahead, and random string sorting comes in at 39.2% ahead, both indicating strong memory and integer pipeline performance.

The Core 9 273PTE does not hold a winning position in any recorded benchmark. Its closest relative performance appears in integer math, where it trails by only 10.6% (82411 versus 92150). The physics test shows a 24.1% gap, and single-thread PassMark shows a 23.4% gap. In every other category, the deficit exceeds 34%. The data indicates that the Core 9 273PTE's 24 threads do not overcome the Ultra 5 245HX's architectural advantages in this test suite.

The percentile ranking reinforces this split. The Ultra 5 245HX sits in the 90th percentile of all CPUs, while the Core 9 273PTE sits in the 82nd percentile. The nearest rivals for the Core 9 273PTE include the Intel Core i7-12700F at 31081 (0.2% behind), the AMD Ryzen 9 8945HS at 31074 (0.2% behind), and the Intel Core i7-13700TE at 31028 (0.4% behind), while the Intel Core i7-12650HX leads it by 0.5% at 31290. The Ultra 5 245HX competes in a higher band, with the Intel Core Ultra 5 235A at 48201 (0.2% behind), the AMD Ryzen AI Max PRO 380 at 48171 (0.2% behind), and the AMD EPYC 4345P at 48470 (0.4% ahead), with the Intel Core i5-14600K at 48618 (0.7% ahead).

FAQ

Q: Which processor has more cores?

A: The Intel Core Ultra 5 245HX has 14 cores, while the Intel Core 9 273PTE has 12 cores.

Q: Which processor has more threads?

A: The Intel Core 9 273PTE has 24 threads, while the Intel Core Ultra 5 245HX has 14 threads. The Core 9 273PTE uses two threads per core, while the Ultra 5 245HX uses one thread per core.

Q: Which processor has a higher boost clock?

A: The Intel Core 9 273PTE boosts to 5.50 GHz, while the Intel Core Ultra 5 245HX boosts to 5.10 GHz.

Q: Which processor has the higher average benchmark score?

A: The Intel Core Ultra 5 245HX averages 48287, compared to 31143 for the Intel Core 9 273PTE. The Ultra 5 245HX also ranks in the 90th percentile versus the 82nd percentile for the Core 9 273PTE.

Q: Do both processors support ECC memory?

A: No. The Intel Core 9 273PTE supports ECC memory, while the Intel Core Ultra 5 245HX does not.

Q: Which processor uses a smaller process node?

A: The Intel Core Ultra 5 245HX uses a 3 nm process from TSMC, while the Intel Core 9 273PTE uses a 10 nm process from Intel.

Specification Differences

| Specification | Intel Core 9 273PTE | Intel Core Ultra 5 245HX |

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

| Cores | 12 | 14 |

| Threads | 24 | 14 |

| Base clock | 1.40 GHz | 3.10 GHz |

| Boost clock | 5.50 GHz | 5.10 GHz |

| TDP | 45 W | 55 W |

| Socket | Intel Socket 1700 | Intel BGA 2114 |

| Architecture | Bartlett Lake | Arrow Lake-HX |

| Process node | 10 nm (Intel) | 3 nm (TSMC) |

| Transistors | Not recorded | 17,800 million |

| Die size | Not recorded | 243 mm² |

| L1 cache | 80 KB per core | 192 KB per core |

| L2 cache | 2 MB per core | 3 MB per core |

| L3 cache | 36 MB shared | 24 MB shared |

| Memory support | DDR4, DDR5 | DDR5 |

| Memory bandwidth | 89.6 GB/s | 102.4 GB/s |

| ECC memory | Yes | No |

| PCIe lanes | Gen 5, 16 lanes | Gen 5, 20 lanes |

| Integrated graphics | UHD Graphics 730 | Arc Xe-LPG Graphics 48EU |

| Market segment | Desktop | Mobile |

| Multiplier unlocked | No | Yes |

| Launch MSRP | $549 | Not recorded |

| Release date | March 2026 | January 2025 |

| Part number | SA4QJ | SRVFM |