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Intel's monstrous 18-core, 36-thread Core i9-7980XE CPU launches September 25 for a whopping $2,000, Intel announced today. It will be joined by the $1,700 16C/32T i9-7960X and the $1,400 14C/28T i9-7940X, while the 12C/12T i9-7920X launches a month earlier on August 28 for $1,200. UK prices are TBC, but the top-end chip will likely start at around £1,900, and then work its way down from there.

Alongside release dates, Intel also revealed TDPs and boost clock speeds—information that was curiously missing from the original X299 announcement back in May. The Core i9-7980XE features a 2.6GHz base clock, a Turbo Boost 2.0 clock of 4.2GHz, and a Turbo Boost 3.0 clock (up to two cores) of 4.4GHz. That's accompanied by 24.75MB of L3 cache, 44 PCIe lanes, and a 165W TDP (the 10-core i9-7900K has a 140W TDP).

Boost and turbo clocks for the remaining i9 chips are largely the same, with a mere 100MHz variance, although the i9-7940X sports a higher 3.1GHz base clock. PC Gamer dug up a more detailed look at stock clock speeds, which shows the variance depending on how many cores are under load. In the case of the i9-7980XE, clock speeds vary from 4.2GHz to 3.9GHz up to 12 cores, dropping to 3.4GHz when all 18 cores are active.

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