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Intel Core i7-7740X X-Series Kaby Lake-X CPU Review

By: Steven Bassiri | Intel CPUs in CPUs, Chipsets & SoCs | Posted: Jul 5, 2017 8:11 pm
TweakTown Rating: 91%Manufacturer: Intel










Synthetic Benchmarks in games show us that the CPU operates just like the 7700K. Performance levels are quite strong, even compared to a few of the higher core count CPUs. Oddly enough, in Unigine Heaven 4.0 at 720P, the 7740X performs better than all the CPUs, but at 1080P it performs worse. It's one of the oddest things I have seen and might be due to the platform.


The way that PCI-E lanes are routed on X299 differs greatly compared to other platforms. Allowing the x16 of lanes to operate on the same board as the 28 and 44 lane CPUs is no easy task. I had also heard rumors that the first x16 on Kaby Lake-X CPUs is routed to where the last lanes on the higher core count CPUs are. That would allow the bifurcation of the CPU's PCI-E lanes so that you could split the x16 lanes into x8/x4/x4.

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