[Manuel Calavera]

Vidjet ćemo, ne zna se

The chip features 1.5 MB of L2 cache (6 x 256 KB) and 9 MB of L3 cache. Now the first thing someone will say is that how do we know this is an actual Coffee Lake processor? Well, it’s quite easy to tell. First, the chip we are looking at was running on a Kaby Lake-S client platform. Kaby Lake-S is the mainstream line which currently supports Skylake and Kaby Lake consumer processors. This is not the HEDT line which should have the Kaby Lake-X codename. Also, the high-end 6 core Broadwell-E parts feature up to 20 MB of L3 cache whereas this processor has less than halve of it.

The cache also tells us a lot about this processor. We know from previous Intel architectures that each core has 2 MB of L3 cache and the entire cache is shared across all cores. A 4 core, 8 thread Kaby Lake chip featured 8 MB of L3 cache. So this chip should have theoretically featured 12 MB of L3 cache that would be shared across all cores. But since this is a disabled chip since it doesn’t feature hyper-thread, the conclusion is that we are looking at a Core i5 series 6 core chip. Intel isn’t making big changes with Coffee Lake and since the design heirarchy is mostly similar to Kaby Lake, a Core i5 chip with disabled design should feature 9 MB of L3 cache. A disable Kaby Lake Core i5-7600K chip also featured less cache of 6 MB compared to 8 MB L3 cache on the Core i7-7700K chip.

EDIT

Intel X299 HEDT Platform With Kaby Lake X CPUs To Be Unveiled at PC Gaming Show on 12th June – First X299 Motherboards Teased by AIBs