Intel® Core™ i7-1265U

The Intel Core i7-1265U is a laptop processor with a hybrid 10-core layout (2 performance cores + 8 efficiency cores) and 12 threads, built on the Alder Lake architecture (Intel 7 process). It launched in Jan 2022. Clocks run from 1.8 GHz base to 4.8 GHz boost. A 12-MB L3 cache backs the cores (1.9 MB per core). It addresses DDR5, DDR4, LPDDR5, LPDDR4X memory up to 64 GB across 2 channels. The chip drops into the FCBGA1744 socket and exposes PCIe 4.0 (20 lanes). Rated TDP is 15 W. Notable platform capabilities: Deep Learning Boost, AVX-VNNI, Extended Page Tables (EPT), AES-NI.

The Intel Core i7-1265U scores 3,105 in single-core performance and 13,022 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 6,359 for overall performance, 12,811 for productivity performance, 12,751 for creator performance, 13,754 for engineering performance and 12,571 for gaming performance. Its multi-core throughput works out to 1,302 per core, 1,085 per thread and 868 per watt. Its computed efficiency index is 1,642. Its performance index is 79, so its overall performance is 21% below 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 i7-1265U scores 48,632 in integer math, 32,282 in floating-point math, 144,411 in compression, 9,045 in cryptography, 795 in physics simulation, 8,077 in vector SIMD, 42 in the prime sieve and 16,811 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 17% below in integer math, 30% below in floating-point math, 37% below in compression, 21% below in cryptography, 27% below in physics simulation, 48% below in vector SIMD, 37% below in the prime sieve and 26% below 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 i7-1265U has 10 physical cores and runs 12 logical threads. It uses a hybrid layout of 2 performance cores and 8 efficiency cores. It runs at a base clock of 1.80 GHz and boosts up to 4.80 GHz.

The Intel Core i7-1265U is a laptop processor, belongs to the Intel Core i7 family, uses the Alder Lake architecture, carries the codename Alder Lake and is manufactured on a Intel 7 process. It launched in Jan 2022.

The Intel Core i7-1265U has 928 KB of L1 cache, 6.50 MB of L2 cache and 12 MB of L3 cache. That adds up to about 19.4 MB of cache, or 1.94 MB per core.

The Intel Core i7-1265U has a 3-level cache hierarchy: L1 at 928 KB, L2 at 6.5 MB and L3 at 12 MB. L3 is the largest level and makes up about 62% of the cache listed here.

The Intel Core i7-1265U supports DDR5, DDR4, LPDDR5, LPDDR4X memory, addresses up to 64 GB of memory, uses 2 memory channels and runs memory at up to 5,200 MT/s.

The Intel Core i7-1265U includes integrated graphics (Intel Iris Xe Graphics eligible) and clocks the graphics up to 1.25 GHz.

The Intel Core i7-1265U uses the FCBGA1744 socket, supports PCI Express 4.0 and provides up to 20 PCIe lanes.

The Intel Core i7-1265U has a rated TDP of 15 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 i7-1265U is also identified by the model number i7-1265U.

After an audit, 1 value was corrected on the Intel Core i7-1265U record. Each change is listed with its old value, new value, rule and sources.

• L2 cache (total): 1,280 KB → 6,656 KB. Rule: L2 cache was stored per core. stored equals the per-P-core size in PassMark "2 x 1280 KB". Sources: Vendor page (intel.com); PassMark: Intel Core i7-1265U; Wikipedia: List of Intel Core mobile processors (revision 1369925615).

The audit log is public: all changes for this CPU, the corrections overview and the method.

Feex has recorded 62% of the specifications it tracks for the Intel Core i7-1265U. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Threads per Core, 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 ECC Memory. Graphics: Graphics Base Clock, 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, Die Count, Foundry and Launch Price. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number.

Processors that use the same FCBGA1744 socket as the Intel Core i7-1265U and have the closest multi-core scores in the Feex database include Intel Core i5-1334U, Intel Core i7-1255U, Intel Core i5-1245U, Intel Core i5-1235U and Intel Core i7-1365U.