Intel Core Ultra 7 265K vs Intel Core Ultra X7 368H Comparison

The Verdict

The benchmark database clearly separates these two processors by market intent. The Intel Core Ultra 7 265K is a desktop part built for throughput, while the Intel Core Ultra X7 368H is a mobile processor optimized for efficiency. The data shows 16 benchmark wins for the 265K versus a single win for the 368H, making the desktop chip the dominant performer in almost every measured category.

The Core Ultra 7 265K delivers crushing advantages in multi-core workloads. Its Cinebench R23 multi-core score of 35850 exceeds the 368H's 28221 by 27%, and the gap widens dramatically in older Cinebench versions. The desktop chip leads by 76.5% in both Cinebench R15 and R20 multi-core tests. This pattern repeats across PassMark workloads: data compression shows a 112.7% lead, extended instructions 111.7%, and random string sorting 109.4%. The 265K is the clear choice for desktop users running heavy parallel tasks, content creation pipelines, or any workload that scales across cores.

The 368H claims one notable victory. In Cinebench R23 single-core, it scores 3984 versus 2020 for the 265K, a 49.3% advantage. This is a striking result, indicating the mobile chip's newer architecture delivers superior per-thread performance in that specific test. However, the 265K still wins the other single-core tests: Cinebench R15 single-core by 76.6%, Cinebench R20 single-core by 76.5%, and PassMark single-thread by 23%. The 368H's single-core win appears isolated to the R23 workload rather than a general trend.

The 368H fits a different role entirely. With a TDP of 25 watts versus 125 watts for the 265K, it targets thin-and-light laptops where battery life and thermals matter more than raw throughput. Its performance class, as indicated by the 87th percentile versus 94th for the desktop chip, still places it well above most CPUs. The 368H suits mobile users who need strong multi-core capability in a power-constrained chassis, accepting the performance gap in exchange for portability.

Architecture Differences

The two processors stem from different Intel design lineages. The Core Ultra 7 265K uses the Arrow Lake architecture with the Arrow Lake-S codename, part of Core Ultra Series 2. It employs a 3 nm process node fabricated by TSMC. The Core Ultra X7 368H uses the Panther Lake architecture with the Panther Lake codename, part of Core Ultra Series 3, also on a 3 nm node but fabricated by Intel's own foundry.

Core counts differ substantially. The 265K has 20 cores and 20 threads, all physical without hyperthreading. The 368H has 16 cores and 16 threads, also without hyperthreading. The desktop chip packs 17,800 million transistors on a 243 mm² die, while the mobile chip's transistor count and die size are not recorded in the database.

Cache hierarchies diverge as well. Both share 192 KB of L1 cache per core. The L2 cache differs: 3 MB per core on the 265K versus 2.5 MB per core on the 368H. The shared L3 cache is 30 MB on the desktop part versus 18 MB on the mobile part.

The integrated graphics units are distinct. The 265K uses Arc Xe-LPG Graphics with 64 execution units. The 368H uses Arc B390, a newer graphics implementation. Neither processor supports 3D V-Cache.

Clock speeds show the desktop chip's advantage. The 265K has a base clock of 3.90 GHz and a boost clock of 5.50 GHz. The 368H runs at 2.00 GHz base and 5.00 GHz boost. The desktop chip also has an unlocked multiplier, while the mobile chip is locked.

Memory support and platform features separate the two further. The 265K supports DDR5 memory with dual-channel configuration and 102.4 GB/s bandwidth, plus ECC memory support. The 368H uses LPDDR5X with dual-channel configuration and higher bandwidth at 153.6 GB/s, but no ECC support. PCIe lanes differ sharply: 20 Gen 5 lanes on the 265K versus 4 Gen 5 lanes on the 368H. The desktop chip uses Intel Socket 1851, while the mobile chip uses Intel BGA 2540, reflecting their fixed versus replaceable mounting.

FAQ

Q: Which processor has better multi-core performance?

A: The Core Ultra 7 265K wins every multi-core benchmark in the database. Its Cinebench R23 multi-core score of 35850 beats the 368H's 28221 by 27%, and the lead reaches 76.5% in Cinebench R15 and R20 multi-core tests. PassMark multithread shows a 77.8% advantage for the desktop chip.

Q: Is the mobile 368H ever faster than the desktop 265K?

A: Yes, in one specific test. The 368H scores 3984 in Cinebench R23 single-core versus 2020 for the 265K, a 49.3% advantage. The 265K wins all other single-core tests, including Cinebench R15 by 76.6%, Cinebench R20 by 76.5%, and PassMark single-thread by 23%.

Q: How do the power requirements compare?

A: The 265K has a TDP of 125 watts, while the 368H has a TDP of 25 watts. This fivefold difference reflects the desktop chip's higher core count and clock speeds versus the mobile chip's efficiency focus.

Q: What memory types do they support?

A: The 265K supports DDR5 memory with 102.4 GB/s bandwidth and ECC capability. The 368H supports LPDDR5X memory with 153.6 GB/s bandwidth but no ECC. Both use dual-channel memory buses.

Q: Which processor has more cache?

A: The 265K has more L2 and L3 cache. Its L2 is 3 MB per core versus 2.5 MB per core on the 368H, and its shared L3 is 30 MB versus 18 MB. Both have 192 KB of L1 cache per core.

Q: How does the 368H compare to its nearest rivals?

A: The 368H has an average benchmark score of 40518, sitting in the 87th percentile of all CPUs. It is essentially tied with the Intel Core 7 253PE at 40557 (0.1% behind) and the Intel Core 5 223PE at 40585 (0.2% behind), while edging the AMD Ryzen 9 7940H at 40431 by 0.2%.

Specification Differences

| Specification | Intel Core Ultra 7 265K | Intel Core Ultra X7 368H |

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

| Series | Core Ultra Series 2 | Core Ultra Series 3 |

| Cores | 20 | 16 |

| Threads | 20 | 16 |

| Base Clock | 3.90 GHz | 2.00 GHz |

| Boost Clock | 5.50 GHz | 5.00 GHz |

| TDP | 125 W | 25 W |

| Socket | Intel Socket 1851 | Intel BGA 2540 |

| Architecture | Arrow Lake | Panther Lake |

| Codename | Arrow Lake-S | Panther Lake |

| Process Node | 3 nm (TSMC) | 3 nm (Intel) |

| Transistors | 17,800 million | Not recorded |

| Die Size | 243 mm² | Not recorded |

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

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

| Memory Support | DDR5 | LPDDR5X |

| Memory Bandwidth | 102.4 GB/s | 153.6 GB/s |

| ECC Memory | Yes | No |

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

| Integrated Graphics | Arc Xe-LPG Graphics 64EU | Arc B390 |

| Market Segment | Desktop | Mobile |

| Release Date | 2024-10-23 | 2026-01-04 |

| Launch MSRP | $394 | Not recorded |

| Multiplier Unlocked | Yes | No |

| Part Number | SRQCW | SA4R7Q9EJ |

Head-to-Head Benchmarks

The Core Ultra 7 265K dominates the benchmark suite with 16 wins against the 368H's single victory. The largest margins appear in data-heavy workloads. PassMark data compression shows the 265K at 665554 versus 312927, a 112.7% lead. Extended instructions follow at 111.7% (54333 versus 25669), and random string sorting at 109.4% (79752 versus 38093). These are the three biggest gaps in the entire comparison.

The Cinebench family reveals a consistency in multi-core scaling. Cinebench R15 multi-core has the 265K at 5020 against 2844, a 76.5% margin. Cinebench R20 multi-core shows 20918 versus 11852, also 76.5%. The R23 multi-core gap narrows to 27% (35850 versus 28221), indicating the newer benchmark version favors the mobile chip's architecture more than its predecessors.

PassMark multithread confirms the pattern with 58594 versus 32956, a 77.8% advantage for the desktop part. Floating point math shows 189629 versus 105681, a 79.4% lead. Integer math delivers 143242 versus 88083, a 62.6% margin. Data encryption produces 48246 versus 25228, a 91.2% gap. Find prime numbers shows 491 versus 321, a 53% lead. Physics scores 3731 versus 2857, a 30.6% edge.

The 368H's lone win in Cinebench R23 single-core is substantial. Its score of 3984 beats the 265K's 2020 by 49.3%. This stands in contrast to the other single-core tests where the 265K wins decisively. Cinebench R15 single-core has the 265K at 708 versus 401, a 76.6% lead. Cinebench R20 single-core shows 2953 versus 1673, a 76.5% gap. PassMark single-thread records 4928 versus 4005, a 23% advantage for the desktop chip.

The average benchmark scores reinforce the hierarchy. The 265K averages 70879 across all tests, placing it in the 94th percentile of all CPUs. Its nearest rivals include the Intel Xeon 6511P at 71051 (0.2% ahead) and the Intel Core i7-14700KF at 70163 (1% behind). The 368H averages 40518, sitting in the 87th percentile, with the AMD Ryzen 9 7940H at 40431 as its closest competitor at 0.2% behind.

The overall picture shows a desktop processor with overwhelming multi-threaded superiority, a mobile processor with one notable single-thread achievement, and a clear separation in platform capabilities, power envelopes, and performance classes. The data supports the 265K for desktop workloads demanding maximum throughput, while the 368H serves mobile systems where its 25-watt TDP and higher memory bandwidth provide distinct advantages.