The Core i5-8400 brings a powerful six-core design to the mid-range, offering class-leading gaming performance and competitive performance in heavier applications. More expensive models offer more performance in both categories, but the Core i5-8400 is easily the pound-for-pound gaming champion.
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The Core i5-8600K leverages its extra two cores to great effect in threaded workloads, offering a substantial boost over its predecessor while aggressive Turbo Boost bins ensure great performance in lightly-threaded workloads. An easy overclocking experience, paired with excellent gaming performance that rivals previous-generation Core i7 models, will make the Core i5 series a heavily sought after processor for enthusiasts.
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Intel finally expanded the core count of its mainstream processors, facilitating solid all-around performance from the Core i7-8700K. Aggressive Turbo Boost bins ensure great performance in lightly-threaded workloads, while six cores cut through demanding tasks much more adeptly than Core i7-7700K. Intel’s Core i7 line-up is still expensive, but you’ll pay a lot less per core than in prior generations.
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All these new processors are desktop parts, meaning they are socketed processors for use in appropriate motherboards featuring the Z370 chipset. Technically these processors use the LGA1151 socket, which is also used by the 6th Generation and 7th Generation processors with the Z170 and Z270 chipsets. However due to differences in the pin-layout of these two sets of processors, 8th Gen will only work in Z370 boards and there is no level of cross compatibility. We will discuss this later.
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The Core i9-7960X offers the best performance from a 16-core processor in both lightly-threaded and multi-threaded workloads. Expect to pay for the privilege of owning one, though. Moreover, thermal challenges dictate that expensive add-ons like custom water-cooling loops are a requirement, particularly if you’re hoping to overclock.
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The buzz since Intel announced it was bringing an 18-core CPU to the consumer market has been palpable: users are anticipating this to be Intel’s best performing processor, and want to see it up against the 16-core AMD Threadripper (even at twice the cost). Intel is the incumbent: it has the legacy, the deep claws in software optimization, and the R&D clout to crush the red rival.
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The Skylake-X-based Core i7-7820X offers strong multi-threaded performance and a lower price point than Intel’s Broadwell-E equivalent. But we did experience some performance regression in a few game titles and applications. Core i7-7820X delivers the highest possible multi-threaded performance from an eight-core processor, provided the application can utilize its resources effectively.
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Intel’s direction for the high-end desktop space has taken an interesting turn. After several years of iterative updates, slowly increasing core counts and increasing IPC, we have gotten used to being at least one generation of microarchitecture behind the mainstream consumer processor families. There are many reasons for this, including enterprise requirements for long support platforms as well as enterprise update cycles.
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The Core i7-7740X brings some of the best features of the Kaby Lake microarchitecture to the HEDT platform, but you lose the integrated GPU in the process. The restricted PCIe and memory features hamstring the X299 platform, but you still pay for features you cannot use. Until Kaby Lake-X-specific motherboards come to market, it’s best to either upgrade your GPU or take the full step up to a true HEDT processor.
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Intel dominates in the data center. And although AMD’s EPYC is on the horizon, for now, the company primarily competes with itself. Intel has to give its customers a reason to upgrade, and adding more cores typically helps. Unfortunately, the weight of legacy interconnects has slowed progress on that front. Clearly, architectural changes need to happen, even if there are growing pains to contend with.
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