Intel Core Ultra 9 285 vs Intel Core Ultra 9 386H Comparison

The Intel Core Ultra 9 285 and the Intel Core Ultra 9 386H occupy different corners of the Intel lineup, one a desktop part and the other a mobile processor. The database records a clear, one-sided performance relationship between them, with the desktop chip winning every single head-to-head benchmark. This analysis breaks down the magnitude of those wins, the architectural reasons behind them, and what the data implies for each processor’s intended role.

Head-to-Head Benchmarks

The data shows a dominant performance sweep for the Intel Core Ultra 9 285. Across 17 recorded benchmarks, it wins all 17. The margins, however, vary dramatically depending on the workload. The smallest advantage appears in the PassMark physics test, where the 285 scores 3598 against the 386H’s 3028, a delta of 18.8%. This suggests that in this particular metric, the mobile chip’s architecture is comparatively competitive. The single-thread PassMark scores tell a similar story of relative closeness: the 285 posts 4881 versus 4218 for the 386H, a 15.7% lead. This indicates that for basic single-threaded throughput, the gap is noticeable but not overwhelming.

The picture changes drastically when looking at Cinebench results. In Cinebench R23 multicore, the 285 delivers 48945 points, while the 386H manages 20547, resulting in a massive 138.2% advantage for the desktop part. The single-core Cinebench R23 result is even more lopsided, with the 285 scoring 6909 against the 386H’s 2071.5, a staggering 233.5% difference. This enormous single-core gap is curious, as it far exceeds the 15.7% difference seen in PassMark’s single-thread test. The discrepancy suggests that the Cinebench R23 single-core workload responds very differently to the architectural and clock-speed advantages of the 285.

Other PassMark sub-tests reinforce the 285’s dominance in compute-heavy tasks. In integer math, the 285 scores 164869 versus 87284, an 88.9% lead. Floating-point math shows a 79.7% advantage, with scores of 194988 and 108527 respectively. Data encryption favors the 285 by 72.9%, and random string sorting by 74.8%. The 285 also leads in data compression by 70.9% and in extended instructions by 55.7%. The 386H’s closest result, aside from physics and single-thread, is in the find prime numbers test, where the 285 leads by a comparatively modest 34.6%.

Where Each One Wins

The Intel Core Ultra 9 285 wins in every recorded category. There is no benchmark in the database where the 386H comes out ahead. This is a complete sweep. The 285’s largest wins are in CPU-intensive rendering and single-core Cinebench loads, indicating a strong advantage in workloads that rely on raw clock speed and sustained multicore performance. The 285’s Cinebench R23 multicore score of 48945 places it in the 95th percentile of all CPUs in the database, reinforcing its position as a high-end desktop processor.

The 386H, while losing every head-to-head matchup, still holds its own in the broader mobile landscape. Its average benchmark score of 43210 places it in the 88th percentile of all CPUs. Its nearest rivals include the AMD Ryzen AI Max PRO 385, which scores 43326, a delta of -0.3%, and the AMD Ryzen AI 9 465, which scores 43431, a delta of -0.5%. The 386H is also slightly ahead of the Intel Core i9-12900, which scores 42906, a delta of 0.7%. These figures show that the 386H is a highly capable mobile processor, even if it cannot match the desktop-class 285.

The 285’s nearest rivals are all server or high-end desktop parts, including the AMD EPYC 8224P, which scores 75582, a delta of -0.1%, and the AMD EPYC 4545P, which scores 75373, a delta of 0.2%. The 285’s average benchmark score is 75488. This places it in direct competition with enterprise-grade silicon, highlighting its strength in heavily threaded workloads.

FAQ

Q: How much faster is the Intel Core Ultra 9 285 in Cinebench R23 multicore?

A: The Intel Core Ultra 9 285 scores 48945, while the Intel Core Ultra 9 386H scores 20547, giving the 285 a 138.2% advantage.

Q: What is the single-core performance difference?

A: In Cinebench R23 single-core, the 285 scores 6909 and the 386H scores 2071.5, a 233.5% difference. The PassMark single-thread test shows a smaller gap, with the 285 scoring 4881 and the 386H scoring 4218, a 15.7% difference.

Q: Which processor has a higher clock speed?

A: The Intel Core Ultra 9 285 has a base clock of 2.50 GHz and a boost clock of 5.60 GHz. The Intel Core Ultra 9 386H has a base clock of 2.10 GHz and a boost clock of 4.90 GHz.

Q: Do both processors support ECC memory?

A: No. The Intel Core Ultra 9 285 supports ECC memory, while the Intel Core Ultra 9 386H does not.

Q: How do their average benchmark scores compare?

A: The Intel Core Ultra 9 285 has an average benchmark score of 75488, placing it in the 95th percentile. The Intel Core Ultra 9 386H has an average score of 43210, placing it in the 88th percentile.

Q: What is the memory bandwidth of each processor?

A: The Intel Core Ultra 9 285 has a memory bandwidth of 102.4 GB/s, while the Intel Core Ultra 9 386H has a memory bandwidth of 115.2 GB/s.

Specification Differences

The two processors differ across nearly every major specification. The Intel Core Ultra 9 285 has 24 cores and 24 threads, while the Intel Core Ultra 9 386H has 16 cores and 16 threads. The 285 has a base clock of 2.50 GHz and a boost clock of 5.60 GHz. The 386H has a base clock of 2.10 GHz and a boost clock of 4.90 GHz. The 285 has a TDP of 65 watts, while the 386H has a TDP of 25 watts.

The 285 uses Intel Socket 1851, while the 386H uses Intel BGA 2540. The 285 has 36 MB of shared L3 cache, while the 386H has 18 MB. The 285 has 3 MB of L2 cache per core, while the 386H has 2.5 MB per core. Both have 192 KB of L1 cache per core.

Memory support differs as well. The 285 supports DDR5 only, while the 386H supports DDR5 and LPDDR5X. The 285 has a memory bandwidth of 102.4 GB/s, while the 386H has 115.2 GB/s. The 285 supports ECC memory, the 386H does not. The 285 offers PCIe Gen 5 with 20 lanes, while the 386H offers Gen 5 with 12 lanes. The integrated graphics differ: the 285 uses Arc Xe-LPG Graphics with 64 EU, while the 386H uses Intel Xe3 Graphics.

Architecture Differences

The architectural split is significant. The Intel Core Ultra 9 285 is built on the Arrow Lake architecture, specifically Arrow Lake-S, and is part of the Core Ultra Series 2. It uses a 3 nm process node manufactured by TSMC. The 386H is built on the Panther Lake architecture, specifically Panther Lake-H, and is part of the Core Ultra Series 3. It also uses a 3 nm process node, but it is manufactured by Intel.

The 285 has 17,800 million transistors on a 243 mm² die. The 386H has no transistor or die size data recorded. The 285 is a desktop processor, while the 386H is a mobile processor. The 285 was released on 2024-12-31, while the 386H was released on 2026-01-04. The 285 has a launch MSRP of $579. The 386H has no recorded launch MSRP. Both processors have locked multipliers. The 285 has part number SRQD4, while the 386H has part number SA4R5Q9EH.

The Verdict

The data points to a straightforward conclusion for anyone choosing between these two. The Intel Core Ultra 9 285 is the superior processor in every benchmark recorded. It delivers a 138.2% higher Cinebench R23 multicore score and a 233.5% higher single-core score. It leads in all PassMark sub-tests, from integer math (88.9%) to data encryption (72.9%). Its average benchmark score of 75488 versus 43210 places it firmly in a higher performance tier.

The 386H, however, is not a weak processor. Its 88th percentile ranking and its competitive position against the AMD Ryzen AI Max PRO 385 and Ryzen AI 9 465 show that it is a strong mobile part. Its 25-watt TDP, compared to the 285’s 65 watts, indicates a focus on efficiency and portability. The 386H also has a higher memory bandwidth at 115.2 GB/s and supports LPDDR5X memory, which the 285 does not.

The choice comes down to the use case. The 285 is the pick for desktop workloads that demand maximum compute throughput, particularly in rendering and multithreaded applications. The 386H is the pick for mobile systems where power efficiency and the ability to use LPDDR5X memory are priorities. The data shows a clear performance hierarchy, but it also shows two processors designed for different segments of the market.