Intel Arc G3 vs Intel Core Ultra 7 265HX Comparison

The Intel Arc G3 and Intel Core Ultra 7 265HX are both mobile processors from Intel, but they sit in different parts of the database. The Arc G3 is a Panther Lake part with 14 cores, 14 threads, a 1.90 GHz base clock, a 4.60 GHz boost clock, and a TDP of 25. The Core Ultra 7 265HX is an Arrow Lake-HX part with 20 cores, 20 threads, a 2.60 GHz base clock, a 5.30 GHz boost clock, and a TDP of 55. The database records no head-to-head benchmark wins for either part in this pairing, and the Arc G3 has no recorded benchmark scores at all.

Where Each One Wins

No direct benchmark wins are recorded for either processor in this comparison. The Arc G3 has no benchmark entries, and the Core Ultra 7 265HX has no head-to-head results against it. The use-case split therefore comes from specification differences.

The Arc G3 leads in power envelope and memory bandwidth. Its TDP is 25 versus 55 for the 265HX, and its LPDDR5X memory path delivers 136.5 GB/s versus 102.4 GB/s. That makes it the part for power-constrained mobile designs where memory throughput matters more than raw core count.

The Core Ultra 7 265HX leads in core count, threads, clock speeds, cache, PCIe lane count, and multiplier flexibility. It has 20 cores and 20 threads versus 14 and 14, a 2.60 GHz base clock versus 1.90 GHz, a 5.30 GHz boost clock versus 4.60 GHz, 30 MB shared L3 cache versus 18 MB, 20 Gen 5 CPU lanes versus 4, and an unlocked multiplier versus a locked one. It also holds all of the recorded benchmark evidence in this pairing, with an average benchmark score of 63173.

Architecture Differences

Both processors are built on a 3 nm process, but they use different foundries: Intel for the Arc G3, TSMC for the Core Ultra 7 265HX. The Arc G3 belongs to the Panther Lake generation and has no separate architecture label in the database. The 265HX is explicitly listed as Arrow Lake with the codename Arrow Lake-HX and the series label Core Ultra Series 2.

The core layouts differ. The Arc G3 uses 14 cores and 14 threads, while the 265HX uses 20 cores and 20 threads. L1 cache is identical on both at 192 KB per core. L2 cache differs: 2.5 MB per core on the Arc G3, 3 MB per core on the 265HX. L3 cache is 18 MB shared on the Arc G3 and 30 MB shared on the 265HX.

Memory architecture also separates the two. The Arc G3 supports LPDDR5X, and the 265HX supports DDR5. Both use dual-channel memory, but the bandwidth is not the same: 136.5 GB/s on the Arc G3 and 102.4 GB/s on the 265HX.

PCIe connectivity uses Gen 5 on both parts, but the CPU lane counts are very different. The Arc G3 exposes 4 lanes, while the 265HX exposes 20 lanes. Integrated graphics differ as well: the Arc G3 lists Arc B370, and the 265HX lists Arc Xe-LPG Graphics 64EU.

The 265HX also records 17,800 million transistors on a 243 mm² die. The Arc G3 listing has no transistor count or die size data. The Arc G3 has a locked multiplier, while the 265HX is multiplier unlocked.

The Verdict

The recorded data favors the Core Ultra 7 265HX for any workload that relies on measured performance. It is the only part in this comparison with benchmark scores, and its average score of 63173 places it at the 93rd percentile of all CPUs in the database. The Arc G3, with no benchmark entries and a listed 50th percentile, cannot be assigned a performance ranking from direct measurements.

The 265HX offers 20 cores, 30 MB shared L3 cache, a 5.30 GHz boost clock, and an unlocked multiplier. That makes it the data-supported choice for multithreaded and high-frequency mobile workloads. The Arc G3 offers a lower TDP of 25, faster memory bandwidth at 136.5 GB/s, and a later release date of 2026-05-27 versus 2025-01-12. For power-constrained designs where memory throughput matters more than core count, the Arc G3 is the relevant part. For compute-heavy tasks, the 265HX is the only part with benchmark evidence.

FAQ

Q: Does the Arc G3 have any benchmark scores in the database?

A: No. The Arc G3 listing has no benchmark entries and an average benchmark score of 0. The Core Ultra 7 265HX has an average benchmark score of 63173.

Q: Which processor has more cores and threads?

A: The Core Ultra 7 265HX has 20 cores and 20 threads. The Intel Arc G3 has 14 cores and 14 threads.

Q: How do their clock speeds compare?

A: The Arc G3 has a 1.90 GHz base clock and a 4.60 GHz boost clock. The Core Ultra 7 265HX has a 2.60 GHz base clock and a 5.30 GHz boost clock.

Q: Which processor has higher memory bandwidth?

A: The Arc G3 supports LPDDR5X with 136.5 GB/s. The Core Ultra 7 265HX supports DDR5 with 102.4 GB/s. Both use dual-channel memory.

Q: Are both processors made on the same process node?

A: Both are listed as 3 nm. The Arc G3 is fabricated by Intel, while the Core Ultra 7 265HX is fabricated by TSMC.

Q: Which processor has an unlocked multiplier?

A: The Core Ultra 7 265HX has an unlocked multiplier. The Arc G3 has a locked multiplier.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries for the Arc G3 versus the Core Ultra 7 265HX. As a result, there are no direct win margins between these two parts. The Arc G3 has no scores to compare. The Core Ultra 7 265HX does have standalone scores, and they can be used to characterize its performance level.

| Test | Score |

|---|---|

| Cinebench R15 multicore | 4096 |

| Cinebench R15 singlecore | 578 |

| Cinebench R20 multicore | 17069 |

| Cinebench R20 singlecore | 2409 |

| Cinebench R23 multicore | 40642 |

| Cinebench R23 singlecore | 5737 |

| Passmark data compression | 511817 |

| Passmark data encryption | 39472 |

| Passmark extended instructions | 40741 |

| Passmark find prime numbers | 406 |

| Passmark floating point math | 161605 |

| Passmark integer math | 126954 |

| Passmark multithread | 47985 |

| Passmark physics | 2978 |

| Passmark random string sorting | 62458 |

| Passmark single thread | 4500 |

The 265HX's average benchmark score is 63173, placing it at the 93rd percentile of all CPUs. Its nearest rivals in the database are the Intel Core i7-13790F with an average score of 63080 and a delta of 0.1%, the AMD Ryzen AI 7 450G with 63331 and a delta of -0.2%, the AMD Ryzen AI Embedded P185 with 62839 and a delta of 0.5%, and the Intel Core Ultra 7 255HX with 62738 and a delta of 0.7%. The largest recorded positive delta is 0.7% over the Core Ultra 7 255HX. The only negative delta is 0.2% behind the Ryzen AI 7 450G.

Specification Differences

| Field | Intel Arc G3 | Intel Core Ultra 7 265HX |

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

| Series | Not listed | Core Ultra Series 2 |

| Cores | 14 | 20 |

| Threads | 14 | 20 |

| Base clock | 1.90 GHz | 2.60 GHz |

| Boost clock | 4.60 GHz | 5.30 GHz |

| TDP | 25 | 55 |

| Socket | Intel BGA 2540 | Intel BGA 2114 |

| Architecture | Not listed | Arrow Lake |

| Codename | Panther Lake | Arrow Lake-HX |

| Generation | Arc G3 (Panther Lake) | Ultra 7 (Arrow Lake-HX) |

| Foundry | Intel | TSMC |

| Transistors | Not listed | 17,800 million |

| Die size | Not listed | 243 mm² |

| L2 cache | 2.5 MB (per core) | 3 MB (per core) |

| L3 cache | 18 MB (shared) | 30 MB (shared) |

| Memory support | LPDDR5X | DDR5 |

| Memory bandwidth | 136.5 GB/s | 102.4 GB/s |

| PCIe | Gen 5, 4 Lanes (CPU only) | Gen 5, 20 Lanes (CPU only) |

| Integrated graphics | Arc B370 | Arc Xe-LPG Graphics 64EU |

| Release date | 2026-05-27 | 2025-01-12 |

| Multiplier unlocked | No | Yes |

| Part number | SA4QZ | SRVFH |

| Average benchmark score | 0 | 63173 |

| Percentile vs all CPUs | 50 | 93 |

| Recorded benchmarks | None | Cinebench and Passmark entries |