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

Head-to-Head Benchmarks

The recorded data shows a comprehensive sweep for the Intel Core Ultra 9 285 across every benchmark in the comparison set. The Intel Core Ultra 7 265HX does not register a single win in any of the 17 head-to-head tests. The performance gap is consistent, ranging from a modest 7.8% to a substantial 23%.

Starting with the Cinebench suite, the Ultra 9 285 wins all six tests by a uniform 17% margin. In Cinebench R23 multicore, the Ultra 9 285 scores 48945 against the Ultra 7 265HX's 40642. The single-core result in Cinebench R23 shows 6909 versus 5737, again a 17% advantage. This uniform delta across both single-threaded and multi-threaded Cinebench workloads suggests a broad architectural efficiency gain rather than a scenario-specific edge.

The PassMark results show a wider spread of deltas. The largest difference appears in PassMark integer math, where the Ultra 9 285 scores 164869 versus 126954, a 23% lead. Floating point math shows a 17.1% margin, with scores of 194988 and 161605 respectively. The physics workload, which often stresses scheduling and memory latency, shows a 17.2% delta favoring the Ultra 9 285 with 3598 points against 2978.

The narrowest gap in the entire dataset is in PassMark single-thread performance. Here the Ultra 9 285 scores 4881, while the Ultra 7 265HX manages 4500, a 7.8% difference. This is notably smaller than the 17% delta seen in Cinebench single-core tests, indicating that the two processors are closer in lightly threaded general workloads than in rendering-style single-core tasks.

Data compression favors the Ultra 9 285 by 15% (602121 versus 511817). Data encryption shows a 15.9% gap (46949 versus 39472). Random string sorting delivers a 15.2% lead for the Ultra 9 285 (73651 versus 62458). Extended instructions, a proxy for vectorized or specialized code paths, show a 10.2% advantage for the Ultra 9 285 (45357 versus 40741). Find prime numbers, a workload sensitive to integer throughput, shows an 11.5% gap (459 versus 406). The multithread aggregate score gives the Ultra 9 285 a 15.2% lead, 56602 versus 47985.

The average benchmark score confirms the overall positioning. The Ultra 9 285 sits at 75488, while the Ultra 7 265HX averages 63173. This places the Ultra 9 285 in the 95th percentile of all CPUs in the database, against the 93rd percentile for the Ultra 7 265HX. The nearest rival data for the Ultra 9 285 includes the AMD EPYC 8224P at 75582 (a 0.1% deficit) and the AMD EPYC 4545P at 75373 (a 0.2% lead). The Ultra 7 265HX sits near the Intel Core i7-13790F (63080, 0.1% ahead) and the AMD Ryzen AI 7 450G (63331, 0.2% behind).

The Verdict

The benchmark data is unambiguous. Every single recorded workload favors the Intel Core Ultra 9 285. The average benchmark score difference of approximately 19.5% (75488 versus 63173) places the two chips in different performance tiers, despite both belonging to the Core Ultra Series 2 family.

The Ultra 9 285 also holds a higher percentile ranking against all CPUs in the database at 95, versus 93 for the Ultra 7 265HX. The nearest rival comparisons reinforce this: the Ultra 9 285 trades blows with server-class AMD EPYC parts, while the Ultra 7 265HX competes with mid-range desktop and mobile parts from both Intel and AMD.

From the data alone, the Ultra 9 285 is the stronger processor in all measured categories. There is no workload category in the dataset where the Ultra 7 265HX pulls ahead. The only context where the Ultra 7 265HX appears competitive is in single-thread PassMark scoring, where the gap narrows to 7.8%, but even there the Ultra 9 285 remains ahead.

Where Each One Wins

The Intel Core Ultra 9 285 wins every benchmark category in the database. That makes a use-case split straightforward: any workload represented in these tests will favor the Ultra 9 285. The largest deltas appear in integer math (23%), physics (17.2%), floating point math (17.1%), and the full Cinebench suite (17% across all six tests). These are workloads that scale with core count, cache size, and sustained clock behavior, all of which favor the Ultra 9 285.

The Intel Core Ultra 7 265HX, despite losing every test, shows its closest relative performance in single-thread PassMark workloads at 7.8% behind. The extended instructions test also shows a relatively smaller gap at 10.2%. These two metrics suggest that in lightly threaded, branch-heavy, or scalar workloads, the Ultra 7 265HX is less disadvantaged than in heavily parallel integer or floating point tasks.

The market segments differ as well. The Ultra 7 265HX is a mobile processor on Intel BGA 2114, while the Ultra 9 285 is a desktop processor on Intel Socket 1851. The data shows the desktop part delivers higher performance across the board, which aligns with the different power envelopes recorded in the specifications (65 W for the Ultra 9 285 versus 55 W for the Ultra 7 265HX). The Ultra 9 285 also has a locked multiplier, while the Ultra 7 265HX has an unlocked multiplier, though no overclocking benchmarks appear in the dataset.

FAQ

Q: Which processor has a higher average benchmark score?

A: The Intel Core Ultra 9 285 has an average benchmark score of 75488, while the Intel Core Ultra 7 265HX averages 63173.

Q: How large is the performance gap in Cinebench R23 multicore?

A: The Ultra 9 285 scores 48945 in Cinebench R23 multicore, versus 40642 for the Ultra 7 265HX, a 17% advantage.

Q: Is the Ultra 7 265HX closer to the Ultra 9 285 in any benchmark?

A: Yes. The narrowest gap is in PassMark single-thread, where the Ultra 9 285 leads by 7.8% (4881 versus 4500).

Q: What is the largest performance gap between the two?

A: The largest delta is in PassMark integer math, where the Ultra 9 285 leads by 23% (164869 versus 126954).

Q: How do the two processors compare in percentile ranking?

A: The Ultra 9 285 sits in the 95th percentile of all CPUs in the database, while the Ultra 7 265HX sits in the 93rd percentile.

Q: Which processor supports ECC memory?

A: The Intel Core Ultra 9 285 has ECC memory support enabled, while the Intel Core Ultra 7 265HX does not support ECC memory.

Architecture Differences

Both processors share the Arrow Lake architecture, but they come from different variants. The Intel Core Ultra 7 265HX uses the Arrow Lake-HX codename, while the Intel Core Ultra 9 285 uses Arrow Lake-S. Both are built on a 3 nm process at TSMC, with the same transistor count of 17,800 million and the same die size of 243 mm².

The core counts differ. The Ultra 9 285 has 24 cores and 24 threads, while the Ultra 7 265HX has 20 cores and 20 threads. Neither processor uses hyperthreading, so thread counts equal core counts in both cases.

Cache configuration differs in the shared L3 cache. The Ultra 9 285 has 36 MB of shared L3, while the Ultra 7 265HX has 30 MB. The L1 and L2 caches are identical at 192 KB per core and 3 MB per core respectively.

The integrated graphics are the same on both: Arc Xe-LPG Graphics with 64 execution units. Memory support is also identical, with DDR5 on a dual-channel bus delivering 102.4 GB/s of bandwidth. PCIe configuration matches as well, with Gen 5 and 20 lanes from the CPU only.

The Ultra 9 285 supports ECC memory, while the Ultra 7 265HX does not. The Ultra 7 265HX has an unlocked multiplier, while the Ultra 9 285 is locked. Both processors are currently marked as Active in production status.

Specification Differences

The socket differs: the Ultra 7 265HX uses Intel BGA 2114, while the Ultra 9 285 uses Intel Socket 1851. This reflects their different market segments, mobile versus desktop.

Clock speeds differ. The Ultra 7 265HX has a base clock of 2.60 GHz and a boost clock of 5.30 GHz. The Ultra 9 285 has a lower base clock of 2.50 GHz but a higher boost clock of 5.60 GHz.

Thermal design power differs by 10 W. The Ultra 7 265HX is rated at 55 W, while the Ultra 9 285 is rated at 65 W.

Core and thread counts differ as noted: 20 cores and 20 threads for the Ultra 7 265HX, 24 cores and 24 threads for the Ultra 9 285.

The L3 cache differs: 30 MB shared for the Ultra 7 265HX, 36 MB shared for the Ultra 9 285.

ECC memory support is present only on the Ultra 9 285.

The multiplier is unlocked on the Ultra 7 265HX but locked on the Ultra 9 285.

The part numbers differ: SRVFH for the Ultra 7 265HX, SRQD4 for the Ultra 9 285.

The release dates differ. The Ultra 9 285 was released on 2024-12-31, while the Ultra 7 265HX followed on 2025-01-12. The Ultra 9 285 has a recorded launch MSRP of $579; the Ultra 7 265HX has no recorded launch MSRP in the database.

The generation labels differ as well. The Ultra 7 265HX is labeled Ultra 7 (Arrow Lake-HX), while the Ultra 9 285 is labeled Ultra 9 (Arrow Lake).