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posted by martyb on Tuesday October 09 2018, @07:00AM   Printer-friendly
from the what-about-meltdown-and-spectre? dept.

Intel Announces 9th Gen Core CPUs: Core i9-9900K (8-Core), i7-9700K, & i5-9600K

Among many of Intel's announcements today, a key one for a lot of users will be the launch of Intel's 9th Generation Core desktop processors, offering up to 8-cores on Intel's mainstream consumer platform. These processors are drop-in compatible with current Coffee Lake and Z370 platforms, but are accompanied by a new Z390 chipset and associated motherboards as well. The highlights from this launch is the 8-core Core i9 parts, which include a 5.0 GHz turbo Core i9-9900K, rated at a 95W TDP.

[...] Leading from the top of the stack is the Core i9-9900K, Intel's new flagship mainstream processor. This part is eight full cores with hyperthreading, with a base frequency of 3.6 GHz at 95W TDP, and a turbo up to 5.0 GHz on two cores. Memory support is up to dual channel DDR4-2666. The Core i9-9900K builds upon the Core i7-8086K from the 8th Generation product line by adding two more cores, and increasing that 5.0 GHz turbo from one core to two cores. The all-core turbo is 4.7 GHz, so it will be interesting to see what the power consumption is when the processor is fully loaded. The Core i9 family will have the full 2MB of L3 cache per core.

[...] Also featuring 8-cores is the Core i7-9700K, but without the hyperthreading. This part will have a base frequency of 3.6 GHz as well for a given 95W TDP, but can turbo up to 4.9 GHz only on a single core. The i7-9700K is meant to be the direct upgrade over the Core i7-8700K, and although both chips have the same underlying Coffee Lake microarchitecture, the 9700K has two more cores and slightly better turbo performance, but less L3 cache per core at only 1.5MB per.

Intel also announced refreshed 8 to 18 core high-end desktop CPUs, and a new 28-core Xeon aimed at extreme workstation users.

Related:
Intel Teases 28 Core Chip, AMD Announces Threadripper 2 With Up to 32 Cores
AMD Threadripper 2 Available Starting on August 13


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  • (Score: 3, Informative) by takyon on Tuesday October 09 2018, @09:01PM (1 child)

    by takyon (881) <reversethis-{gro ... s} {ta} {noykat}> on Tuesday October 09 2018, @09:01PM (#746615) Journal

    Most phones have different cores for different purposes. For example, 4 performance cores and 4 lower power cores. Or 2 performance cores, 2-4 regular cores, and 4 lower power cores.

    DynamIQ is the successor to big.LITTLE [wikipedia.org] and can allow weirder configurations [anandtech.com]:

    Another big change is the ability to place up to 8 CPUs inside a single cluster (up from 4 for bL), with the total number of CPUs scaling up to 256 with 32 clusters, which can scale even further to 1000s of CPUs with multi-chip support provided via a CCIX interface. Within a cluster CPUs are divided into voltage/frequency domains, and within a domain each core is inside its own power domain. This allows each CPU to be individually powered down, although all CPUs in the same domain must operate at the same frequency, which is no different from bL; however, with DynamIQ each cluster can support up to 8 voltage/frequency domains, providing greater flexibility than bL’s single voltage/frequency domain per cluster. So, what does this mean? It means that, in theory, an SoC vendor could place each CPU into its own voltage domain so that voltage/frequency could be set independently for each of the 8 CPUs in the cluster. Each voltage/frequency domain requires its own voltage regulator, which adds cost and complexity, so we’ll most likely continue to see 2-4 CPUs per domain.

    ARM still sees 8-core configurations being used in mobile devices over the next few years. With bL, this would likely be a 4+4 pairing using 4 big cores and 4 little cores or 8 little cores spread across 2 clusters. With DynamIQ, all 8 cores can fit inside a single cluster and can be split into any combination (1+7, 2+6, 3+5, 4+4) of A75 and A55 cores. ARM sees the 1+7 configuration, where one A55 core is replaced by a big A75 core, as particularly appealing for the mid-range market, because it offers up to 2.41x better single-thread performance and 1.42x better multi-thread performance for only a 1.13x increase in die area compared to an octa-core A53 configuration (iso-process, iso-frequency).

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  • (Score: 3, Informative) by bob_super on Tuesday October 09 2018, @09:17PM

    by bob_super (1357) on Tuesday October 09 2018, @09:17PM (#746630)