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.

Based on 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 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:


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 Enhance, 13.75MB of L3, 44 lanes of PCIe

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

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

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

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

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

No clear match with present Intel merchandise

I’m by no means 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 way in which 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 would possibly reply to AMD’s Ryzen, there’s no manner Intel might have presumably made this variation in response. Growing cache sizes with out negatively impacting cache latency is a big endeavor; Intel would have needed to do a elementary respin on Skylake to make this variation. 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 atmosphere. And the way efficient (and the way massive) varied caches should be for optimum efficiency is partially a perform of the cache structure. Growing the L2 cache by 768KB doesn’t routinely compensate for shrinking the L3 cache.

If this leaked roadmap is true–and that’s a giant if–it implies Intel gained’t be fixing one of many synthetic segmentation limitations that’s most irritated fans: the lockout on PCI Specific lanes. If you wish to run two graphics playing cards at full x16, you must purchase a 10-core chip to do it. Until Intel plans to considerably slash costs, that might really be a worse deal than at current. Presently, the Core i7-6850Ok helps 40 PCI-Specific lanes with an MSRP of $617 – $628. Intel’s 10-core processor, the 6950X, is a $1,800 core. Until Intel plans a severe worth minimize at this core rely, fans should pay prime greenback for a 32-lane answer. Ryzen 7 doesn’t at the moment 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 trouble releasing Core i7 CPUs with these specs. There’s the tiniest trace of an improve within the i7-7740Ok, with its four.3GHz base clock versus the four.2GHz base clock of the 7700Ok, however the Core i7-7640Ok isn’t an i7 in any respect. It’s nothing however an i5 with greater base clocks, and any four-core / eight-thread i7 from the previous few years will outperform it in any multi-threaded software of observe. Releasing an entry-level HEDT “Core i7” that might assuredly be outperformed by the Core i7-4790Ok, 6700Ok, or 7700Ok isn’t one of the best 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