Intel® Core™ Ultra 9 285

The Intel Core Ultra 9 285 is a desktop processor with a hybrid 24-core layout (8 performance cores + 16 efficiency cores) and 24 threads, built on the Arrow Lake architecture (Compute Tile 's N3B process). It launched in Jan 2025. Clocks run from 2.5 GHz base to 5.6 GHz boost. A 36-MB L3 cache backs the cores (3.3 MB per core). It addresses DDR5 memory up to 256 GB across 2 channels. The chip drops into the FCLGA1851 socket and exposes PCIe 5.0 (24 lanes). Rated TDP is 65 W. Notable platform capabilities: Gaussian Neural Accelerator, Extended Page Tables (EPT), Control-flow Enforcement (CET).

The Intel Core Ultra 9 285 scores 4,907 in single-core performance and 57,556 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 16,806 for overall performance, 44,281 for productivity performance, 40,488 for creator performance, 73,384 for engineering performance and 29,110 for gaming performance. Its multi-core throughput works out to 2,398 per core, 2,398 per thread and 886 per watt. Its computed efficiency index is 2,085. Its performance index is 208, so its overall performance is 108% above the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the Intel Core Ultra 9 285 scores 164,469 in integer math, 197,388 in floating-point math, 620,404 in compression, 48,152 in cryptography, 3,487 in physics simulation, 47,471 in vector SIMD, 469 in the prime sieve and 75,785 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 179% above in integer math, 330% above in floating-point math, 172% above in compression, 319% above in cryptography, 220% above in physics simulation, 206% above in vector SIMD, 600% above in the prime sieve and 235% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The Intel Core Ultra 9 285 has 24 physical cores and runs 24 logical threads. It uses a hybrid layout of 8 performance cores and 16 efficiency cores. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 2.50 GHz and boosts up to 5.60 GHz.

The Intel Core Ultra 9 285 is a desktop processor, belongs to the Intel Core Ultra 9 family, uses the Arrow Lake architecture, carries the codename Arrow Lake and is manufactured on a Compute Tile 's N3B process. It launched in Jan 2025.

The Intel Core Ultra 9 285 has 2.38 MB of L1 cache, 40 MB of L2 cache and 36 MB of L3 cache. That adds up to about 78.4 MB of cache, or 3.27 MB per core.

The Intel Core Ultra 9 285 has a 3-level cache hierarchy: L1 at 2.4 MB, L2 at 40 MB and L3 at 36 MB. L2 is the largest level and makes up about 51% of the cache listed here.

The Intel Core Ultra 9 285 supports DDR5 memory, addresses up to 256 GB of memory and uses 2 memory channels. It does not support DDR4 and LPDDR memory. It supports ECC memory.

The Intel Core Ultra 9 285 includes integrated graphics (Intel Graphics) and clocks the graphics up to 2.00 GHz.

The Intel Core Ultra 9 285 uses the FCLGA1851 socket, supports PCI Express 5.0 and provides up to 24 PCIe lanes.

The Intel Core Ultra 9 285 has a rated TDP of 65 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

The Intel Core Ultra 9 285 is manufactured by TSMC. It launched at a price of $549.

The Intel Core Ultra 9 285 is also identified by the model number 285 and the processor number 285.

Feex has recorded 68% of the specifications it tracks for the Intel Core Ultra 9 285. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L2 Cache (per Core) and L4 Cache. Memory Support: Memory Bandwidth and Max Memory Speed. Graphics: Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size and Die Count. Naming & Aliases: SKU and Part Number.

Processors that use the same FCLGA1851 socket as the Intel Core Ultra 9 285 and have the closest multi-core scores in the Feex database include Intel Core Ultra 7 265KF, Intel Core Ultra 7 265K, Intel Core Ultra 5 250K Plus, Intel Core Ultra 5 250KF Plus and Intel Core Ultra 7 265.