Intel Core i7-8700K and Core i5-8400 Processor Review – Coffee Lake

Memory Bandwidth Benchmarks

SiSoftware Sandra 2016 SP3 Memory Bandwidth: link

SiSoftware Sandra 2016 is a utility, which includes remote analysis, benchmarking and diagnostic features for PCs, servers, mobile devices and networks. This test has been popular for CPU and memory benchmarks for well over a decade and it is one of the easiest benchmarks out there to run.

Memory Bandwidth Results Summary: The Intel Core i7-8700K processor with the Corsair Vengeance DDR4 3000MHz memory kit with CL15 timings gave us about 32.6 GB/s of memory bandwidth on Sandra. This is about 1 GB/s higher than we got with the same exact kit on the Intel Core i7-7700K processor, so we are happy with that. The issue we ran into was actually on the Intel Core i5-8400 processor. On the Gigabyte Z370 AORUS Gaming 7 motherboard with BIOS Version F4a we were unable to run anything higher than 2666MHz memory for some reason. We tried both sets of slots, manual and XMP settings and eventually five different memory kits from Corsair and G.Skill. We reached out to Gigabtye and other reviewers and found that some weren’t having issues and others were on this board and processor, so we’ll be looking into that closer after launch.