CPU Reviews System

X299 Ultra-Light: Intel's Kaby Lake-X Core i7-7740X, Core i5-7640X and what to do

We want to precede today's test with a small episode that we experienced at a motherboard manufacturer when it came to Intel's request that kaby Lake-X still have a cheap board with only four memory banks. The Basin Falls X299 chipset The Kaby Lake-X processors sit in an LGA2066 socket (R4), powered by an X299 chipset with 6 watts of power consumption. The 14nm chiset supports an x4 DMI 3.0 connection, which provides a PCIe link between the ... What we noticed during testing We took a little more time to counter some of the anomalies we noticed when benchmarking the new Kaby Lake-X CPUs. To what extent the 3DMark is now really a reliable reference... Ashes of the Singularity: Escalation (DX12) Let's take the bow to the first game, which we have documented in as much detail as always. Purely in terms of computing power, there are no surprises and all CPUs are also fixed in time... Project Cars (DX12) This game demands the CPUs, but you don't actually need more than 4 real cores. Here, only clock counts and thus also the IPC. The Core i7-7740X can be overclocked and not overclocked. In... Introduction During the launch article of AMD's Ryzen 7 CPUs, we had already explained all workstation and HPC benchmarks in great detail and also questioned the background for many results in some cases even down to the last detail. En... Important preliminary remark As with Kaby Lake, Intel has no longer realized the contact between Die and Heatspreader by metallic solder at Kaby Lake-X, but is also available here on cheaper TIM (Thermal Interface material, i.e. neat heater... Cooling with the Chiller crowbar In order to achieve comparable results for the launch article of the Core i7-7900X, we use the Alphacool Ice Age Chiller 2000, as with all articles on AMD's Ryzen, which also has a load-independent, constank... Summary The bottom line is that the performance differences between Kaby Lake and Kaby Lake-X are rather marginal, but we haven't really found the meaning of this whole venture either. While the Vi...

Ashes of the Singularity: Escalation (DX12)

Let's take the bow to the first game, which we have documented in as much detail as always. Purely in terms of computing power, there are no surprises at all, and even tactically adjusted, all CPUs are there as you might have expected:

It gets interesting in the details of the Uneveness index. Here Kaby Lake and Kaby Lake-X move on the level of the smaller Ryzen 5 1600X, which can also be subjectively confirmed.

 

Civization VI (DX12)

As we already noticed with the launch article for the Core i9-7900X, the big Skylake-X is causing enormous problems here, for whatever reason. The Core i7-7400X behaves completely as expected to the Core i7-7700K, taking into board the clock difference.

But let's now look at the Frame Times and the Uneveness index! Although the variances do not report negative things, there are still major differences here, even in the subjective feeling, not to be discussed away:

 

Grand Theft Auto (DX11)

This classic has long been an Intel domain and will probably remain so for the time being. Nevertheless, the Ryzen CPUs have caught up and it remains playable with them. The overclocking results are then good for the B-note alone.

The bar chart with the Frame-Times is particularly interesting here:

 

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About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

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