Intel® Core™ Ultra 5 245K

The Intel Core Ultra 5 245K is a desktop processor with a hybrid 14-core layout (6 performance cores + 8 efficiency cores) and 14 threads, built on the Arrow Lake architecture (Compute Tile 's N3B process). It launched in Oct 2024. Clocks run from 4.2 GHz base to 5.2 GHz boost. A 24-MB L3 cache backs the cores (3.7 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 125 W. Notable platform capabilities: Gaussian Neural Accelerator, Extended Page Tables (EPT), Control-flow Enforcement (CET).

The Intel Core Ultra 5 245K scores 4,715 in single-core performance and 43,158 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 14,265 for overall performance, 34,654 for productivity performance, 32,224 for creator performance, 48,283 for engineering performance and 24,935 for gaming performance. Its multi-core throughput works out to 3,083 per core, 3,083 per thread and 345 per watt. Its computed efficiency index is 1,276. Its performance index is 177, so its overall performance is 77% 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 5 245K scores 98,546 in integer math, 130,726 in floating-point math, 459,201 in compression, 33,294 in cryptography, 3,087 in physics simulation, 37,666 in vector SIMD, 414 in the prime sieve and 55,146 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 67% above in integer math, 185% above in floating-point math, 101% above in compression, 190% above in cryptography, 183% above in physics simulation, 143% above in vector SIMD, 518% above in the prime sieve and 143% 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 5 245K has 14 physical cores and runs 14 logical threads. It uses a hybrid layout of 6 performance cores and 8 efficiency cores. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 4.20 GHz and boosts up to 5.20 GHz.

The Intel Core Ultra 5 245K is a desktop processor, belongs to the Intel Core Ultra 5 family, uses the Arrow Lake architecture, carries the codename Arrow Lake and is manufactured on a Compute Tile 's N3B process. It launched in Oct 2024.

The Intel Core Ultra 5 245K has 1.41 MB of L1 cache, 26 MB of L2 cache and 24 MB of L3 cache. That adds up to about 51.4 MB of cache, or 3.67 MB per core.

The Intel Core Ultra 5 245K has a 3-level cache hierarchy: L1 at 1.4 MB, L2 at 26 MB and L3 at 24 MB. L2 is the largest level and makes up about 51% of the cache listed here.

The Intel Core Ultra 5 245K 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 5 245K includes integrated graphics (Intel Graphics) and clocks the graphics up to 1.90 GHz.

The Intel Core Ultra 5 245K uses the FCLGA1851 socket, supports PCI Express 5.0 and provides up to 24 PCIe lanes.

The Intel Core Ultra 5 245K has a rated TDP of 125 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 5 245K is manufactured by TSMC. It launched at a price of $309.

The Intel Core Ultra 5 245K is also identified by the model number 245K and the processor number 245K.

Feex has recorded 68% of the specifications it tracks for the Intel Core Ultra 5 245K. 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 5 245K and have the closest multi-core scores in the Feex database include Intel Core Ultra 5 245KF, Intel Core Ultra 5 235, Intel Core Ultra 9 285T, Intel Core Ultra 5 245 and Intel Core Ultra 5 235A.