Intel Core Ultra 5 225T vs Intel Core Ultra 9 275HX Comparison

The Intel Core Ultra 5 225T and Intel Core Ultra 9 275HX are both Core Ultra Series 2 processors built on the Arrow Lake architecture, but the database separates them by market segment, socket, core count, and performance class. The Ultra 5 225T sits at the 82nd percentile of all CPUs with an average benchmark score of 30,468, while the Ultra 9 275HX reaches the 94th percentile with an average score of 67,469. In direct comparison, the Ultra 9 275HX wins 16 of the recorded head-to-head benchmark entries; the Ultra 5 225T wins one.

The Verdict

Benchmark data gives a clear split. The Ultra 9 275HX is the dominant processor across the PassMark suite and in Cinebench multi-thread tests, with an average score of 67,469 against 30,468 for the Ultra 5 225T. It also carries the higher 94th percentile ranking. The Ultra 5 225T is not without a highlight: in Cinebench R23 single-core it scores 3,101 against 2,204, a 40.7% advantage. That single result, however, does not offset the 275HX's 16 wins in the head-to-head table.

The 225T's average score places it in a tight cluster: 0.2% above the Intel Core i9-11980HK, 0.3% above the AMD Ryzen 5 7640HS, 0.3% above the AMD Ryzen 7 7736U, and 0.3% below the Intel Core i5-13600H. The 275HX's average score is 0.3% behind the Intel Xeon w5-3525, 0.5% behind the AMD EPYC 4484PX, 0.6% behind the AMD Ryzen Threadripper PRO 5955WX, and 0.7% ahead of the Intel Xeon 6515P. In short, the 275HX competes in workstation-class territory, while the 225T sits among high-end mobile processors from the nearest-rival group.

For a buyer choosing strictly on recorded scores, the 275HX is the performance pick for multi-threaded and most single-thread workloads. The 225T is the pick only for the specific Cinebench R23 single-core measurement, where it leads by 40.7%.

FAQ

Q: How do core counts and thread counts compare?

A: The Ultra 5 225T has 10 cores and 10 threads. The Ultra 9 275HX has 24 cores and 24 threads. The 275HX also has a larger shared L3 cache: 36 MB versus 20 MB.

Q: Which CPU is faster in single-core tests?

A: It depends on the benchmark. The Ultra 5 225T wins Cinebench R23 single-core by 40.7% with 3,101 versus 2,204. The Ultra 9 275HX wins PassMark single-thread by 7.7% with 4,713 versus 4,348 and Cinebench R15 single-core by 6.6% with 334 versus 312.

Q: Are both CPUs manufactured on the same process?

A: Yes. Both use a 3 nm TSMC process, 17,800 million transistors, and a 243 mm² die size. Both are Arrow Lake parts, with the 225T using Arrow Lake-S and the 275HX using Arrow Lake-HX.

Q: What are the memory and PCIe specifications?

A: Both support DDR5 on a dual-channel bus with 102.4 GB/s bandwidth and no ECC memory. Both provide PCIe Gen 5 with 20 CPU lanes. The integrated graphics differ: 16EU on the 225T versus 64EU on the 275HX.

Q: What do the sockets and market segments indicate?

A: The Ultra 5 225T is a desktop part on Intel Socket 1851. The Ultra 9 275HX is a mobile part on Intel BGA 2114. The 275HX has an unlocked multiplier, while the 225T does not.

Q: Which CPU has the higher clock speed?

A: The Ultra 9 275HX boosts to 5.40, compared with 4.90 for the Ultra 5 225T. Its base clock is also higher at 2.70 versus 2.50. The 225T has a higher TDP of 65, while the 275HX is rated at 55.

Architecture Differences

Both chips belong to Core Ultra Series 2 and use the same Arrow Lake design family, but their physical packages and target platforms split them. The 225T is Arrow Lake-S, a desktop part, while the 275HX is Arrow Lake-HX, a mobile part. The shared foundation is substantial: both are built on TSMC's 3 nm process with 17,800 million transistors and a 243 mm² die size. From there, the core layout diverges. The 225T uses 10 cores and 10 threads; the 275HX uses 24 cores and 24 threads. Cache organization follows the core count, with each core getting 192 KB of L1 and 3 MB of L2, while shared L3 rises from 20 MB on the 225T to 36 MB on the 275HX.

The integrated graphics block also differs: the 225T carries Arc Xe-LPG Graphics with 16EU, while the 275HX carries the same family with 64EU. The 275HX adds an unlocked multiplier, while the 225T is locked. The sockets reflect their segments: Intel Socket 1851 for the desktop 225T and Intel BGA 2114 for the mobile 275HX. The 275HX's part number is SRVFK, while the 225T's part number is listed as unknown.

Specification Differences

Where the two processors differ, the database records the following values:

| Specification | Core Ultra 5 225T | Core Ultra 9 275HX |

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

| Cores | 10 | 24 |

| Threads | 10 | 24 |

| Base clock | 2.50 | 2.70 |

| Boost clock | 4.90 | 5.40 |

| TDP | 65 | 55 |

| Socket | Intel Socket 1851 | Intel BGA 2114 |

| Codename | Arrow Lake-S | Arrow Lake-HX |

| Generation | Ultra 5 (Arrow Lake) | Ultra 9 (Arrow Lake-HX) |

| L3 cache | 20 MB shared | 36 MB shared |

| Integrated graphics | Arc Xe-LPG Graphics 16EU | Arc Xe-LPG Graphics 64EU |

| Market segment | Desktop | Mobile |

| Release date | 2024-12-31 | 2025-01-12 |

| Multiplier unlocked | No | Yes |

| Part number | unknown | SRVFK |

Head-to-Head Benchmarks

The head-to-head table records 16 wins for the Ultra 9 275HX and 1 win for the Ultra 5 225T. The 225T's sole win is Cinebench R23 single-core, where it scores 3,101 versus 2,204, a 40.7% margin. That is the largest single-core win in either direction in the comparison.

For multi-thread Cinebench, the 275HX leads by 60.6% in R15 with 5,619.5 versus 2,214, by 53.6% in R20 with 19,899 versus 9,227, and by 38.3% in R23 with 35,589 versus 21,971. The R23 gap is smaller than R15 or R20, but still substantial. Single-core Cinebench results are split: R15 favors the 275HX by 6.6% with 334 versus 312, R20 favors the 275HX by 53.6% with 2,809 versus 1,302, and R23 favors the 225T by 40.7% with 3,101 versus 2,204.

PassMark results widen the gap further. The 275HX leads by 61.6% in integer math with 155,218 versus 59,543, by 61.5% in data compression with 608,381 versus 233,998, by 61.3% in random string sorting with 74,320 versus 28,774, and by 61.2% in data encryption with 47,112 versus 18,289. It also leads by 57.3% in extended instructions with 47,016 versus 20,083, by 56.7% in floating point math with 191,186 versus 82,751, by 54.5% in multithread with 55,759 versus 25,358, by 38.5% in physics with 3,338 versus 2,053, and by 36.6% in find prime numbers with 448 versus 284.

Single-thread PassMark is closer: 4,713 versus 4,348, a 7.7% lead for the 275HX. The average benchmark scores reflect the overall shape: 67,469 for the 275HX versus 30,468 for the 225T, with percentile rankings of 94 versus 82. The 275HX dominates the benchmark table, and the 225T's one win is isolated to a single Cinebench R23 single-core result.