Intel® Core™ i5-9400

The Intel Core i5-9400 is a desktop processor with 6 cores and 6 threads, built on the Coffee Lake architecture (14 nm process). It launched in Jan 2019. Clocks run from 2.9 GHz base to 4.1 GHz boost. A 9-MB L3 cache backs the cores (1.8 MB per core). It addresses DDR4 memory up to 128 GB across 2 channels. The chip drops into the FCLGA1151 socket and exposes PCIe 3.0 (16 lanes). Rated TDP is 65 W. Notable platform capabilities: Extended Page Tables (EPT). Feex currently counts 1 machine in its hardware fleet with exactly this processor.

The Intel Core i5-9400 scores 2,413 in single-core performance and 9,353 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 4,751 for overall performance, 9,458 for productivity performance, 9,488 for creator performance, 9,295 for engineering performance and 9,577 for gaming performance. Its multi-core throughput works out to 1,559 per core, 1,559 per thread and 144 per watt. Its computed efficiency index is 589. Its performance index is 59, so its overall performance is 41% 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 i5-9400 scores 26,258 in integer math, 22,630 in floating-point math, 131,695 in compression, 2,889 in cryptography, 618 in physics simulation, 11,665 in vector SIMD, 36 in the prime sieve and 16,245 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 55% below in integer math, 51% below in floating-point math, 42% below in compression, 75% below in cryptography, 43% below in physics simulation, 25% below in vector SIMD, 46% below in the prime sieve and 28% 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 i5-9400 has 6 physical cores and runs 6 logical threads. It does not support simultaneous multithreading, so its thread count equals its core count. It runs at a base clock of 2.90 GHz and boosts up to 4.10 GHz.

The Intel Core i5-9400 is a desktop processor, belongs to the Intel Core i5 family, uses the Coffee Lake architecture, carries the codename Coffee Lake and is manufactured on a 14 nm process. It launched in Jan 2019.

The Intel Core i5-9400 has 384 KB of L1 cache, 1.50 MB of L2 cache and 9 MB of L3 cache. That adds up to about 10.9 MB of cache, or 1.81 MB per core. Each core has 256 KB of private L2 cache.

The Intel Core i5-9400 has a 3-level cache hierarchy: L1 at 384 KB, L2 at 1.5 MB and L3 at 9 MB. L3 is the largest level and makes up about 83% of the cache listed here.

The Intel Core i5-9400 supports DDR4 memory, addresses up to 128 GB of memory and uses 2 memory channels. It does not support DDR5 and LPDDR memory.

The Intel Core i5-9400 includes integrated graphics (Intel UHD Graphics 630) and clocks the graphics up to 1.05 GHz.

The Intel Core i5-9400 uses the FCLGA1151 socket, supports PCI Express 3.0 and provides up to 16 PCIe lanes.

The Intel Core i5-9400 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 i5-9400 is manufactured by Intel. It launched at a price of $182.

The Intel Core i5-9400 is also identified by the model number i5-9400.

After an audit, 1 value was corrected and 1 empty field was filled on the Intel Core i5-9400 record. Each change is listed with its old value, new value, rule and sources.

• L2 cache (total): 256 KB → 1,536 KB. Rule: L2 cache was stored per core. stored equals the per-core size in PassMark "6 x 256 KB". Sources: Vendor page (intel.com); PassMark: Intel Core i5-9400 @ 2.90GHz; Wikipedia: List of Intel Core desktop processors (revision 1371607091).

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

Feex has recorded 63% of the specifications it tracks for the Intel Core i5-9400. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Bandwidth, ECC Memory 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, Die Count and Foundry. Naming & Aliases: Normalized Name, SKU, Processor Number and Part Number.

Processors that use the same FCLGA1151 socket as the Intel Core i5-9400 and have the closest multi-core scores in the Feex database include Intel Xeon E-2134, Intel Xeon E-2144G, Intel Core i5-9400F, Intel Core i5-8400 and Intel Core i5-8500.