Intel Core Ultra 9 285 vs Intel Xeon Platinum 8270 Comparison

Head-to-Head Benchmarks

The benchmark comparison between the Intel Core Ultra 9 285 and the Intel Xeon Platinum 8270 produces a clear pattern: the Core Ultra 9 285 dominates in the vast majority of recorded tests, with the Xeon Platinum 8270 managing to secure wins in only three of seventeen head-to-head comparisons.

Looking at the Cinebench suite, the Core Ultra 9 285 wins all six tests, and every single one shows the same 71.4% advantage over the Xeon Platinum 8270. In Cinebench R23 multicore, the Core Ultra 9 285 scores 48,945 points against 28,561 for the Xeon Platinum 8270. The single-core result in the same test shows 6,909 versus 4,032. This consistent 71.4% delta across every Cinebench test, from R15 to R23, indicates that the performance gap scales uniformly regardless of workload generation or core count utilization.

The Passmark results paint a more varied picture. The most striking victory for the Core Ultra 9 285 comes in Passmark data encryption, where it scores 46,949 compared to just 8,798 for the Xeon Platinum 8270, a massive 433.6% advantage. Passmark find prime numbers shows a similar story, with the Core Ultra 9 285 scoring 459 against 84, a 446.4% lead. Passmark physics also heavily favors the Core Ultra 9 285, with a score of 3,598 versus 903, representing a 298.4% difference.

In floating point math, the Core Ultra 9 285 scores 194,988 against 99,432 for the Xeon Platinum 8270, a 96.1% advantage. Passmark multithread shows 56,602 versus 29,986, an 88.8% gap. Single-thread performance sees the Core Ultra 9 285 at 4,881 against 2,325, a 109.9% lead. These are not marginal differences, they represent fundamental architectural advantages that show up across both synthetic and application-style workloads.

The Xeon Platinum 8270's three wins are all in the Passmark suite. Data compression favors the Xeon by a 728,144 to 602,121 margin, a 17.3% advantage. Extended instructions show the Xeon ahead at 51,191 versus 45,357, an 11.4% lead. Random string sorting also goes to the Xeon, 80,208 to 73,651, an 8.2% edge. These wins are meaningful but narrow compared to the margins the Core Ultra 9 285 achieves in its victories.

The closest race of the entire comparison is Passmark integer math, where the Core Ultra 9 285 scores 164,869 against 160,322 for the Xeon Platinum 8270, a mere 2.8% difference. This near-tie suggests that in pure integer throughput, the two processors are essentially equivalent, with the Core Ultra 9 285 holding only a slight edge.

Overall, the Core Ultra 9 285 wins 14 of 17 benchmark comparisons, and its losses are all by single-digit or low-double-digit percentages. Its wins, by contrast, frequently exceed 100% and in two cases surpass 400%. The average benchmark score reflects this dominance: 75,488 for the Core Ultra 9 285 against 71,370 for the Xeon Platinum 8270.

Where Each One Wins

The Core Ultra 9 285 establishes its dominance in single-threaded and lightly threaded workloads. Every Cinebench single-core test goes to it by the same 71.4% margin, and Passmark single-thread shows a 109.9% lead. This makes it the clear choice for applications that rely on fast per-core execution, such as interactive workloads, compilation, and general desktop responsiveness.

The Core Ultra 9 285 also dominates in encryption and prime number finding, where its architectural advantages translate into 433.6% and 446.4% leads respectively. Physics simulation similarly favors it by 298.4%. These are workloads where newer instruction execution and higher clock speeds matter more than raw core count, and the data reflects that.

Floating point math is another strong area for the Core Ultra 9 285, with a 96.1% advantage. Multithreaded performance across the Passmark suite shows an 88.8% lead, meaning the Core Ultra 9 285 outperforms the Xeon even in scenarios that should theoretically favor the Xeon's higher thread count. Cinebench multicore results confirm this: despite having fewer threads, the Core Ultra 9 285 posts a 71.4% higher score across all three Cinebench versions.

The Xeon Platinum 8270 wins in three specific areas. Data compression is its strongest result, beating the Core Ultra 9 285 by 17.3%. Extended instructions show an 11.4% advantage, and random string sorting comes in at 8.2%. These wins suggest the Xeon retains some capability in memory-heavy, string-manipulation, and certain vectorized workloads, likely due to its 52 threads and larger thread-level parallelism for tasks that can effectively use them.

For integer math, the two processors are nearly identical, with the Core Ultra 9 285 ahead by only 2.8%. This near-parity indicates that for integer-heavy workloads, the choice between these two processors will not meaningfully affect performance, and other factors should drive the decision.

The use-case split is therefore clear. The Core Ultra 9 285 is the stronger processor for the vast majority of workloads, particularly those that value single-thread performance, encryption, physics, and floating point operations. The Xeon Platinum 8270 only makes sense for workloads specifically tuned to data compression, extended instruction sets, and random string sorting, where its larger thread count provides a measurable benefit.

Architecture Differences

The two processors come from entirely different eras and design philosophies. The Intel Core Ultra 9 285 uses the Arrow Lake architecture, built on a 3 nm process at TSMC. The Intel Xeon Platinum 8270 uses the Cascade Lake architecture, built on Intel's 14 nm process. This process gap of 11 nm is one of the largest architectural divides between any two processors in the database.

The Core Ultra 9 285 packs 17,800 million transistors into a 243 mm² die. The Xeon Platinum 8270 has 8,000 million transistors, and its die size is not recorded in the database. The Core Ultra 9 285 therefore has more than double the transistor count despite being a desktop processor, evidence of the density gains of the 3 nm node.

Core configurations differ significantly. The Core Ultra 9 285 has 24 cores and 24 threads, meaning no hyperthreading. The Xeon Platinum 8270 has 26 cores and 52 threads, with hyperthreading enabled. Despite the Xeon having 2 more cores and 28 more threads, the Core Ultra 9 285 still wins most multicore benchmarks, which shows that per-core performance differences overwhelm thread count advantages in these workloads.

Clock speeds tell a similar story. The Core Ultra 9 285 has a base clock of 2.50 GHz and a boost clock of 5.60 GHz. The Xeon Platinum 8270 has a base clock of 2.70 GHz and a boost clock of 4.00 GHz. The Xeon starts slightly higher at base, but the Core Ultra 9 285's boost clock is 1.6 GHz higher, and in practice boost behavior matters more for the workloads tested.

Cache hierarchies also diverge. The Core Ultra 9 285 has 192 KB of L1 cache per core, 3 MB of L2 cache per core, and 36 MB of shared L3 cache. The Xeon Platinum 8270 has 64 KB of L1 per core, 1 MB of L2 per core, and 35.75 MB of shared L3. The Core Ultra 9 285 has triple the L1 cache per core and triple the L2 cache per core, while shared L3 capacities are nearly identical at 36 MB versus 35.75 MB.

Memory support differs by generation. The Core Ultra 9 285 supports DDR5 memory with a dual-channel bus and a recorded memory bandwidth of 102.4 GB/s. The Xeon Platinum 8270 supports DDR4 memory, and its memory bus configuration and bandwidth are not recorded in the database. Both processors support ECC memory.

The Core Ultra 9 285 includes integrated graphics in the form of Arc Xe-LPG Graphics with 64 execution units. The Xeon Platinum 8270 has no integrated graphics recorded in the database. For systems that need a display output without a discrete GPU, this is a meaningful difference.

PCIe support also separates the two. The Core Ultra 9 285 offers PCIe Gen 5 with 20 lanes from the CPU. PCIe information for the Xeon Platinum 8270 is not recorded in the database. The Core Ultra 9 285 uses the Intel Socket 1851 platform, while the Xeon Platinum 285 uses Intel Socket 3647, reflecting their different market segments and platform generations.

The Core Ultra 9 285 is classified as a desktop processor with a production status of Active, released in late 2024 with a launch MSRP of $579. The Xeon Platinum 285 is a Server/Workstation processor, released in December 2018, and its production status is not recorded. The Core Ultra 9 285 has a recorded part number of SRQD4, while the Xeon Platinum 8270 lists a longer part number of SRF96CD8069504195201 in the database.

Neither processor has an unlocked multiplier, so neither supports multiplier overclocking in the traditional sense. The Core Ultra 9 285 sits at the 95th percentile of all CPUs in the database, just ahead of the Xeon Platinum 8270 at the 94th percentile.

The Verdict

The data supports a straightforward recommendation: the Intel Core Ultra 9 285 is the far superior processor for virtually every workload category recorded in the database. It wins 14 of 17 benchmark comparisons, with its losses limited to three narrow margins in data compression, extended instructions, and random string sorting. Its average benchmark score of 75,488 places it 5.8% ahead of the Xeon Platinum 8270's 71,370 average.

Users who need single-thread performance should pick the Core Ultra 9 285, as it posts a 109.9% advantage over the Xeon Platinum 8270 in Passmark single-thread tests. Its 71.4% lead in Cinebench R15, R20, and R23 single-core tests reinforces that this is not a close contest at low thread counts.

Users who run encryption-heavy workloads should also choose the Core Ultra 9 285, given its 433.6% lead in Passmark encryption and 446.4% lead in Passmark find prime numbers. Physics workloads similarly favor it by 298.4%, and floating point math by 96.1%. Even in multithreaded workloads, the Core Ultra 9 285 wins by 88.8% in Passmark multithread and 71.5% in all three Cinebench multicore tests, meaning users who primarily run heavily threaded applications would still get better results from the desktop chip.

The Xeon Platinum Platinum 8270 should only be selected by users whose workloads are specifically optimized for the three areas where it wins: data compression by 17.3%, extended instructions by 11.4%, and random string sorting by 8.2%. For these three scenarios, the Xeon's 52 threads provide a measurable benefit. However, even in these cases, the margins are modest, and the Xeon's advantage in no way offsets its massive losses elsewhere.

The Xeon Platinum 8270's three wins are all in Passmark tests only, no Cinebench test favors it in any version. This means server environments that predominantly run compression workloads would need to weigh an 8.2% to 17.3% benefit against the 71.4% to 446.4% deficits in nearly every other category. That trade-off is rarely worthwhile given the overall performance hierarchy, the Core Ultra 285 remains ahead in 14 out of the 17 recorded tests, with an average benchmark score 5.8% higher than the Xeon Platinum 8270's average of 71,370.

The 26-core, 52-thread Xeon Platinum 8270 was released in December 2018 on the Cascade Lake architecture with a 14 nm process. The Intel Core Ultra 9 285, released in late 2024 on the Arrow Lake architecture with a 3 nm process, TSMC, is the newer processor by roughly six years, and it shows in every measured category. The Core Ultra 285 has 24 cores, 24 threads, with no hyperthreading enabled.

FAQ

Q: Which CPU won more head-to-head benchmarks?

The Intel Core Ultra 9 285 won 14 of the 17 head-to-head benchmark comparisons, while the Intel Xeon Platinum 8270 won 3. The wins for the Core Ultra 285 came in all six Cinebench tests and 8 of the 11 Passmark tests. The Xeon Platinum 8270 won in Passmark data compression, Passmark extended instructions, and Passmark random string sorting. The Core Ultra 285 also won Passmark integer math by a narrow 2.8% margin.

Q: How does multicore performance compare?

The Core Ultra 9 285 scores 48,945 in Cinebench R23 multicore, 20,556 in Cinebench R20 multicore, and 4,933 in Cinebench R15 multicore, all three wins by 71.4%. In Passmark multithreaded tests, the Core Ultra 9 285 scores 56,602, an 88.8% lead. The Xeon Platinum 8270 scores 28,561 in Cinebench R23 multicore, 11,995 in Cinebench R20 multicore, and 2,878 in Cinebench R15 multicore, all by 71.3% less than the Core Ultra 285.

Q: Which CPU is better for single-threaded performance?

The Core Ultra 9 285 has a 109.9% lead in Passmark single-thread, scoring 4,881 against 2,325 for the Xeon Platinum 8270. Cinebench R23 single-core and R20 single-core show 6,909 and 2,901 for the Core Ultra 9 285, against 4,032 and 1,693 for the Xeon Platinum 8270, and 71.4% and 71.4% in R15 single-core. All six Cinebench single-core tests favored the Core Ultra 285 by 71.4% over the Xeon Platinum 8270, a consistent 71.4% advantage.

Q: How do the two compare in memory compression workloads?

The Xeon Platinum 8270 scores 728,144 in Passmark data compression, a 17.3% advantage over the Core Ultra 9 285, scoring 602,121. The Xeon Platinum 8270 also wins Passmark extended instructions by 11.4% with a score of 51,191 versus 45,357, and the Xeon wins Passmark random string sorting, 80,208 to 73,651, an 8.2% lead over the Core Ultra 285.

Q: Which CPU has a higher average benchmark score?

The Core Ultra 9 285 averages 75,488 across all recorded benchmarks. The Xeon Platinum 8270 averages 71,370. The Core Ultra 285 is 5.8% higher than the Xeon Platinum 8270's, and the Core Ultra 285, and the Xeon Platinum 8270 is 5.8% lower than the Core Ultra 285's average. The Core Ultra 285 percentile is 95th percentile in the database, the Xeon Platinum 8270 is in the 94th percentile.

Q: How do their architectures differ?

The Core Ultra 9 285 uses Arrow Lake architecture, built on a 3 nm process at TSMC, with 24 cores, 24 threads, a 2.50 GHz base clock, a 5.60 GHz boost clock, and 17,800 million transistors on a 243 mm² die. The Xeon Platinum 8270 uses Cascade Lake architecture, built on Intel's 14 nm process, with 26 cores, 52 threads, a 2.70 GHz base clock, a 4.00 GHz boost clock, and 8,000 million transistors. The Core Ultra 285 has 36 MB of L3 cache, triple the L2 cache per core, and triple the L1 cache per core compared to the Xeon Platinum 8270.