Rumor: Intel Planning 12-Core Core i9 CPUs to Problem AMD’s Ryzen

Because it launched in early March, AMD’s Ryzen 7 and Ryzen 5 households have blown holes in Intel’s midrange and high-end desktop product segments. It was solely a matter of time till Chipzilla retaliated, and a leaked slide from a German presentation means that Intel is stepping up its personal Skylake-X HEDT (Excessive Finish DeskTop) platforms.

In accordance with the leaked information, Intel will provide a top-end 12-core Core i9-7920X, with 24 threads and 16.5MB of L3 cache, with 44 PCIe three.zero lanes. Base clock and turbo frequencies are all TBD, however the chip supposedly has 16.5MB of L3 cache. The opposite chips are listed as follows:

intelskylakex

Unique discussion board put up by Sweepr, picture by dooon

Core i9-7900X: 10 cores, 20 threads, three.3GHz base, four.3GHz Turbo, four.5GHz Turbo Increase three.zero, 13.75MB of L3, 44 lanes of PCIe three.zero.

Core i9-7820X: eight cores, 16 threads, three.6GHz base, four.3GHz Turbo, four.5GHz Turbo Increase three.zero, 11MB L3, 28 lanes of PCIe three.zero

Core i9-7800X: 6 cores, 12 threads, three.5GHz base, 4GHz Turbo, no Turbo Increase three.zero, eight.25MB L3, 28 lanes of PCIe three.zero.

Core i7-7740Okay: four cores, eight threads, four.3GHz base, four.5GHz Turbo, no Turbo Increase three.zero, 8MB L3, 16 lanes of PCIe three.zero.

Core i7-7640Okay: four cores, four threads, 4GHz base, four.2GHz Turbo, no Turbo Increase three.zero, 6MB of L3 cache, 16 lanes of PCIe three.zero.

The 2 Core i7 chips can be Kaby Lake-derived whereas the remainder of the Core i9 household relies on Skylake-X.

No clear match with current Intel merchandise

I’m in no way sure these leaks replicate the chips Intel will announce at Computex. First, there’s the quantity of L3 cache. These new cores have far much less L3 cache than any present Intel HEDT chip — Intel’s 10-core 6950X, for instance, has 25MB of L3. For the final six years, all the best way again to the 3960X, Intel has supplied 2-2.5MB of L3 cache per CPU core within the HEDT household. These new chips slash that ratio to 1.375MB per core.

Sweepr, the Anandtech poster who leaked this data, claims that Intel has made up for the sharp L3 deficit by quadrupling the scale of its L2 cache. Whereas we’ve talked earlier than about how Intel may reply to AMD’s Ryzen, there’s no approach Intel might have probably made this transformation in response. Growing cache sizes with out negatively impacting cache latency is a big enterprise; Intel would have needed to do a elementary respin on Skylake to make this transformation. If these cache counts are correct, they replicate plans Intel made a yr or extra in the past, not any latest response to a renewed aggressive setting. And the way efficient (and the way massive) varied caches must be for optimum efficiency is partially a perform of the cache structure. Growing the L2 cache by 768KB doesn’t mechanically compensate for shrinking the L3 cache.

If this leaked roadmap is true–and that’s a giant if–it implies Intel received’t be fixing one of many synthetic segmentation obstacles that’s most irritated lovers: the lockout on PCI Specific lanes. If you wish to run two graphics playing cards at full x16, it’s a must to purchase a 10-core chip to do it. Except Intel plans to considerably slash costs, that may truly be a worse deal than at current. At present, the Core i7-6850Okay helps 40 PCI-Specific lanes with an MSRP of $617 – $628. Intel’s 10-core processor, the 6950X, is a $1,800 core. Except Intel plans a critical worth minimize at this core depend, lovers must pay high greenback for a 32-lane answer. Ryzen 7 doesn’t presently provide a 32-lane answer both, although there’s hypothesis that the corporate’s rumored HEDT aggressive answer will, when and if it’s launched.

Lastly, it’s not clear why Intel would even hassle releasing Core i7 CPUs with these specs. There’s the tiniest trace of an improve within the i7-7740Okay, with its four.3GHz base clock versus the four.2GHz base clock of the 7700Okay, however the Core i7-7640Okay isn’t an i7 in any respect. It’s nothing however an i5 with increased base clocks, and any four-core / eight-thread i7 from the previous few years will outperform it in any multi-threaded utility of be aware. Releasing an entry-level HEDT “Core i7” that may assuredly be outperformed by the Core i7-4790Okay, 6700Okay, or 7700Okay isn’t one of the simplest ways to encourage fanatic adoption and I’m taking these rumors with a good bit of salt.

Now learn: How L1 and L2 CPU caches work, and why they’re an essential part of modern chips

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