Intel Core Ultra 7 265H vs Intel Core Ultra 9 285 Comparison

The Intel Core Ultra 7 265H and the Intel Core Ultra 9 285 are both members of the Core Ultra Series 2, built on the Arrow Lake architecture, but they target entirely different market segments. The 265H is a mobile processor with 16 cores and a 28 W TDP, while the 285 is a desktop part with 24 cores and a 65 W TDP. Benchmark data shows a complete sweep for the 285 across all 17 recorded head-to-head tests, leaving no workload categories where the 265H takes a victory. The average benchmark score for the 285 is 75488, placing it in the 95th percentile of all CPUs, while the 265H averages 41621, sitting in the 88th percentile. The nearest rivals for the 285 include the AMD EPYC 8224P, which sits 0.1% behind, and the AMD Ryzen 7 PRO 9755, which is 0.3% ahead. The 265H’s closest competitor is the Intel Core i7-14650HX, which is 0.1% ahead, and the AMD Ryzen 9 5900X, which is 0.6% ahead.

The Verdict

The Intel Core Ultra 9 285 is the clear choice for anyone needing maximum multi-threaded throughput on a desktop platform. Its Cinebench R23 multi-core score of 48945 is 59.3% higher than the 265H’s 19940, and its PassMark multithread score of 56602 is 39.9% ahead of the mobile chip’s 34027. The 285 also delivers substantially higher single-thread performance, with a Cinebench R23 single-core score of 6909 versus 2080 for the 265H, a 69.9% advantage. This desktop processor is designed for sustained heavy workloads, as evidenced by its 65 W TDP and 24 cores, which provide a massive parallel processing capability.

The Intel Core Ultra 7 265H, on the other hand, is the appropriate pick for a laptop or compact mobile system where power efficiency is critical. Its 28 W TDP makes it suitable for thin-and-light designs, and it still delivers respectable performance, as shown by its 88th percentile ranking and an average score of 41621. While it loses every benchmark to the 285, its integrated Arc Graphics 140T and mobile BGA 2049 socket make it a integrated solution for portable devices. The data does not support choosing the 265H for raw performance, but its power envelope and mobile form factor are unique advantages that the desktop 285 cannot offer.

Where Each One Wins

The benchmark results are unambiguous: the Intel Core Ultra 9 285 wins every single one of the 17 head-to-head comparisons. There is no test category, whether it is Cinebench rendering, PassMark integer math, or data compression, where the 265H comes out ahead. The closest margin is in PassMark single-thread, where the 285 scores 4881 versus 4334 for the 265H, a gap of 11.2%. This indicates that even in lightly threaded tasks, the desktop chip’s higher boost clock of 5.60 GHz and larger thermal headroom give it a consistent edge over the mobile chip’s 5.30 GHz boost.

The largest wins for the 285 come in heavily threaded workloads. In Cinebench R23 multi-core, the 285 is 59.3% ahead, and in PassMark integer math it leads by 48.2%. The 285 also dominates in extended instruction workloads, scoring 45357 versus 26805, a 40.9% advantage, and in floating-point math with 194988 versus 109123, a 44% lead. The 265H does not win any category, so the use-case split is simple: the 285 is for desktop users who prioritize performance, and the 265H is for mobile users who prioritize portability and lower power draw.

Architecture Differences

Both processors share the Arrow Lake architecture and are fabricated on a 3 nm process by TSMC, but they diverge in several key design aspects. The 265H has 16 cores and 16 threads, while the 285 has 24 cores and 24 threads. Neither chip uses Hyper-Threading, so core count equals thread count for both. The 285’s transistor count is 17,800 million, and its die size is 243 mm², while the database does not list transistor or die size figures for the 265H. The L1 cache is identical at 192 KB per core, and the L2 cache is also the same at 3 MB per core. The L3 cache, however, differs significantly: the 285 has 36 MB shared L3, while the 265H has 24 MB shared L3.

The 285 is a desktop part on Intel Socket 1851, with a base clock of 2.50 GHz and a boost clock of 5.60 GHz. The 265H is a mobile part on Intel BGA 2049, with a base clock of 2.20 GHz and a boost clock of 5.30 GHz. The TDP also reflects their different segments: the 285 draws 65 W, while the 265H draws 28 W. Both support ECC memory and dual-channel memory buses with identical memory bandwidth of 102.4 GB/s, but the 265H supports both DDR5 and LPDDR5X, while the 285 only supports DDR5. The 285 has 20 PCIe Gen 5 lanes from the CPU, while the 265H has only 8 lanes. The integrated graphics also differ: the 265H uses Arc Graphics 140T, while the 285 uses Arc Xe-LPG Graphics 64EU.

FAQ

Q: Which processor has a higher core count?

A: The Intel Core Ultra 9 285 has 24 cores and 24 threads, while the Intel Core Ultra 7 265H has 16 cores and 16 threads.

Q: How much faster is the Core Ultra 9 285 in multi-core Cinebench R23?

A: The Core Ultra 9 285 scores 48945 in Cinebench R23 multi-core, which is 59.3% higher than the Core Ultra 7 265H’s score of 19940.

Q: Do both processors use the same process node?

A: Yes, both the Intel Core Ultra 7 265H and the Intel Core Ultra 9 285 are fabricated on a 3 nm process by TSMC, and both use the Arrow Lake architecture.

Q: Which processor supports LPDDR5X memory?

A: Only the Intel Core Ultra 7 265H supports LPDDR5X memory, in addition to DDR5. The Intel Core Ultra 9 285 supports only DDR5 memory.

Q: What is the TDP of each processor?

A: The Intel Core Ultra 7 265H has a TDP of 28 W, while the Intel Core Ultra 9 285 has a TDP of 65 W.

Q: Which processor has the larger L3 cache?

A: The Intel Core Ultra 9 285 has 36 MB of shared L3 cache, while the Intel Core Ultra 7 265H has 24 MB of shared L3 cache.

Head-to-Head Benchmarks

The most decisive victory for the Intel Core Ultra 9 285 comes in Cinebench R23 single-core, where it scores 6909 against the 265H’s 2080, a delta of 69.9% in favor of the desktop chip. This is a massive gap that reflects both the higher boost clock of 5.60 GHz and the larger power budget. In Cinebench R23 multi-core, the 285 scores 48945 versus 19940, a 59.3% advantage, which is consistent with the 24-core versus 16-core configuration. The Cinebench R15 tests show a similar pattern: the 285 leads by 39.4% in multi-core and 55.9% in single-core, with scores of 4933 and 696 respectively.

In the PassMark suite, the 285 continues its dominance. The data compression test shows 602121 for the 285 versus 334711 for the 265H, a 44.4% lead. Data encryption shows 46949 versus 26005, a 44.6% gap. Extended instructions favor the 285 by 40.9%, with scores of 45357 and 26805. The find prime numbers test is closer, with the 285 at 459 and the 265H at 335, a 27% difference. Floating-point math shows a 44% lead for the 285 (194988 versus 109123), and integer math shows a 48.2% lead (164869 versus 85479). The multithread test gives the 285 a 39.9% edge (56602 versus 34027), and the physics test shows a 30.6% advantage (3598 versus 2497). Random string sorting favors the 285 by 44.7% (73651 versus 40742). The single-thread tests are the closest, with the 285 at 4881 and the 265H at 4334, an 11.2% lead.

Specification Differences

The Intel Core Ultra 9 285 and Intel Core Ultra 7 265H differ across nearly every core specification, starting with core count: the 285 has 24 cores and 24 threads, while the 265H has 16 cores and 16 threads. The base clock of the 285 is 2.50 GHz versus 2.20 GHz for the 265H, and the boost clock is 5.60 GHz versus 5.30 GHz. The TDP is 65 W for the 285 and 28 W for the 265H. The socket type is also different: the 285 uses Intel Socket 1851, while the 265H uses Intel BGA 2049. The codenames reflect their market segments, with the 285 being Arrow Lake-S and the 265H being Arrow Lake-H.

The L3 cache is 36 MB on the 285 and 24 MB on the 265H, while L1 and L2 caches are identical at 192 KB and 3 MB per core respectively. Memory support differs, with the 265H supporting both DDR5 and LPDDR5X, while the 285 supports only DDR5. Both have dual-channel memory buses and 102.4 GB/s bandwidth, and both support ECC memory. The PCIe configuration is different: the 285 offers 20 Gen 5 lanes from the CPU, while the 265H offers 8 Gen 5 lanes. The integrated graphics are also different, with the 265H using Arc Graphics 140T and the 285 using Arc Xe-LPG Graphics 64EU. The release dates are close, with the 285 released on 2024-12-31 and the 265H on 2025-01-12. The 285 has a launch MSRP of $579. The market segment for the 285 is Desktop, while the 265H is classified as Mobile. Both processors are active in production and have locked multipliers.