Intel® Core™ i7-1355U

The Intel Core i7-1355U is a laptop processor with a hybrid 10-core layout (2 performance cores + 8 efficiency cores) and 12 threads, built on the Raptor Lake architecture (Intel 7 process). It launched in 2023. Clocks run from 1.7 GHz base to 5.0 GHz boost. A 12-MB L3 cache backs the cores (1.9 MB per core). It addresses DDR5, DDR4, LPDDR5, LPDDR4X memory up to 96 GB across 2 channels. It uses the FCBGA1744 socket. Power envelope is 15 W sustained, with up to 55 W under turbo. Notable platform capabilities: Deep Learning Boost, AVX-VNNI, Extended Page Tables (EPT), AES-NI. Feex currently counts 1 machine in its hardware fleet with exactly this processor.

The Intel Core i7-1355U scores 3,390 in single-core performance and 13,957 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 6,879 for overall performance, 13,818 for productivity performance, 13,778 for creator performance, 14,742 for engineering performance and 13,659 for gaming performance. Its multi-core throughput works out to 1,396 per core, 1,163 per thread and 931 per watt. Its computed efficiency index is 1,776. Its performance index is 85, so its overall performance is 15% 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 i7-1355U scores 50,486 in integer math, 33,993 in floating-point math, 152,653 in compression, 9,589 in cryptography, 846 in physics simulation, 8,534 in vector SIMD, 48 in the prime sieve and 17,284 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 14% below in integer math, 26% below in floating-point math, 33% below in compression, 17% below in cryptography, 22% below in physics simulation, 45% below in vector SIMD, 28% below in the prime sieve and 24% 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 i7-1355U has 10 physical cores and runs 12 logical threads. It uses a hybrid layout of 2 performance cores and 8 efficiency cores. It runs 1.2 threads per core. It runs at a base clock of 1.70 GHz and boosts up to 5.00 GHz.

The Intel Core i7-1355U is a laptop processor, belongs to the Intel Core i7 family, uses the Raptor Lake architecture, carries the codename Raptor Lake and is manufactured on a Intel 7 process. It launched in 2023.

The Intel Core i7-1355U 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 i7-1355U 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 i7-1355U supports DDR5, DDR4, LPDDR5, LPDDR4X memory, addresses up to 96 GB of memory, uses 2 memory channels and runs memory at up to 6,400 MT/s. It does not support ECC memory.

The Intel Core i7-1355U includes integrated graphics (Intel® Iris® Xe Graphics eligible) and clocks the graphics up to 1.30 GHz.

The Intel Core i7-1355U uses the FCBGA1744 socket and provides up to 20 PCIe lanes.

The Intel Core i7-1355U has a rated TDP of 15 W and draws up to 55 W at maximum turbo power.

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 i7-1355U is built from 1 die and is manufactured by Intel. It launched at a price of $469.

The Intel Core i7-1355U is also identified by the part number SRMLY, the model number i7-1355U and the processor number i7-1355U.

After an audit, 2 values were corrected on the Intel Core i7-1355U 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 i7-1355U; Wikipedia: List of Intel Core mobile processors (revision 1369925615).
• PCIe revision: Gen 4 Chipset / PCH PCIe Revision Gen 3 Max # of PCI Express Lanes 20 Package Specifications Sockets Supported FCBGA1744 Max CPU Configur... cleared (now Not recorded). Rule: Cleanup pcie scraped page null. value is a scraped web page (physically invalid for a PCIe revision).

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

Feex has recorded 71% of the specifications it tracks for the Intel Core i7-1355U. 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. Graphics: Graphics Base Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size and Foundry. Naming & Aliases: SKU.

Processors that use the same FCBGA1744 socket as the Intel Core i7-1355U and have the closest multi-core scores in the Feex database include Intel Core i5-1345U, Intel Core 7 250U, Intel Core i5-1335U, Intel Core 5 220U and Intel Core i7-1365U.