The CPU core configuration for Intel’s future Core i5-14400 and i5-14400F desktop CPUs is supposedly 6P+4E. 6 performance cores (P-cores) and 4 efficiency cores (E-cores) are therefore present. One featured a 6P+4E configuration, and the other was thought to have a 6P+8E configuration, like the remainder of the 14th Gen Core i5 series. Two different engineering samples of the i5-14400 were seen in the wild. In addition to the core configuration, the engineering samples of the i5-14400 come in two different steppings, B0 and C0.

The particular dice that each of them is based on is what sets B0 apart from C0. The “Alder Lake-S” top-spec processor models were based on the “B0” die, which is the bigger “Raptor Lake-S” die, which physically has an 8P+8E configuration but has been drastically reduced to obtain the 6P+4E configuration. The Core i5-14400/F processors in B0 and C0 both have 6P+4E. The E-core clusters on both steppings, including B0, are given 2 MB of L2 cache apiece, 20 MB of shared L3 cache, and 65 W of processor base power. The P-cores on both steppings, including B0, are given 1.25 MB of dedicated L2 cache. The Core i5-14400 and i5-14400F are the latest in a long line of popular CPU designs from Intel that are priced at or below $200.