Intel Core i5-10400 vs Core i5-9400F performance comparison leaks

Intel Core i5-10400 tested

A leaker from Chiphell forums posted a preview of the Core i5-10400 performance compared to current-gen Core i5-9400F. There are some minor differences between the two processors. A Comet Lake-S model (10400) has hyperthreading enabled, unlike its predecessor. This means that the 10400 has 12 threads while 9400(F) has 6 threads.

They do share the same base clock of 2.9 GHz, but the newer model features a 4.3 GHz boost clock (meaning there’s a 200 MHz upgrade over the last generation). A more important change, however, is the socket compatibility, the i5-10400 requires LGA1200 motherboard (such as Z490/H470 or B460). Also worth noting that the L3 cache for 10400 has increased to 12MB from 9MB (Coffee Lake).

The leaker used MSI’s Z490 Tomahawk motherboard with DDR4-3200 memory, sadly no details on the LGA1151 testing platform were shared.

Core i5-10400 CPUZ (left) vs Core i5-9400F right (right)

Core i5-10400 Cinebnech R20 (left) vs Core i5-10400 Cinebnech R15 (right)

Core i5-10400 CPUZ V19 AVX2 (left) vs Core i5-10400 CPUZ V19 (right)

Core i5-10400 CPUZ V17 (left) vs Core i5-10400 AIDA FPU (right)

Core i5-10400 SuperPI (left) vs Core i5-10400 AIDA64 Cache (right)

The Core i5-10400 is 4.4 to 5.2% faster in single-threaded CPUZ software test, with 34 to 39% performance boost over 9400F in multi-threaded operations. In Cinebench R15 and R20 single-threaded performance is between 6.8 to 8.8% with a 42 to 45% increase in the multi-threaded test.

Thus, Core i5-10400 single-thread performance appears to reflect the frequency boost this SKU received since the 9th Gen Core series, while taking huge advantage from hyper-threading being enabled for the first time for this market segment.

Core i5-10400 Combined Results

Source: Chiphell via HXL