Intel Skylake-X Core i9 CPUs teased

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The rumoured leak adds that Skylake-X chips will also support DDR4-2666MHz memory, which isn't much of a surprise given that we're in 2017. The most note-worthy model is the i9-7920X Skylake-X processor with 12/24 core variants. The Core i7-7640K surprisingly lacks HyperThreading, has 6MB of L3 cache and works at 4.0GHz base and 4.2GHz Turbo clocks. Base clocks start around 3GHz and Turbo below 4.0GHz.

The Core i9 CPU will also be available in other options, including 6 cores, 8 cores or 10 cores.

The 7900X processor reportedly has a base frequency of 3.3GHz, reaching 4.3GHz with Intel's Turbo 2.0 Boost Max technology for limited numbers of cores and 4.5GHz with Turbo 3.0 for single-threaded workloads. We expect the upcoming Coffee Lake CPUs will move the goalposts onward from Kaby Lake but nonetheless the extra clock speed of Skylake-X should make HEDT more appealing to gamers who want a high end PC.

It's already been a big year in the CPU market with the successful launch of AMD's Ryzen CPUs. First, there's the amount of L3 cache. This chip will come with 10 cores, 20 threads but on a new Skylake architecture, according to DSOG. It is curious to see how the appearance of an Intel Core i9 was raised no less than eight years ago.

The chip would feature a total of 13.75 MB cache, that's 1.375 MB per core.

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That, however, isn't stopping Intel to head back to the drawing board and the game of one-upmanship is well underway.

For the longest time, Intel has been the only name that matters when it comes to the processor inside your PC. Assuming that Intel and AMD both release full details there, these CPUs could be in computers shipping this summer. Increasing the L2 cache by 768KB doesn't automatically compensate for shrinking the L3 cache.

As per the leaked presentation, the i9 will be starting at hexacore/12 threaded i9-7800X, before going all the way up to a 12 core/24 threaded i9-7920X. Unless Intel plans to substantially slash prices, that would actually be a worse deal than at present.

It all seems rather plausible then... though having a non-HyperThreaded quad-core i7 using essentially the same numerical code as the Core i5 7600K seems a little weird. The company though is yet to acknowledge they have any ambitions beyond the Ryzen 7.

Finally, it's not clear why Intel would even bother releasing Core i7 CPUs with these specs. Base clock on this CPU is 3.3 GHz and it supports Turbo 2.0 and Turbo 3.0, taking performance to a maximum 4.5 GHz. The higher-end Core i7-7740K has two threads per core enabled, while the lower end i7-7640K has just one thread per core enabled.

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