Intel Core i5-10600K processor review

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An Introduction

Core i5 10600K processor review

More cores, more clock frequency, a stronger gaming processor.

We review the new Core i5-10600K processor from Intel. Priced at 262 USD, this processor based on Comet Lake-S architecture and tied to the Z490 platform comes with 6 cores and twelve threads. It has an all-core turbo to 4500 MHz and may boost to 4.8 GHz on two cores. Just what the doctor ordered in that mainstream gaming arena?

What a ride the past 12 months have already been. We've seen a plethora of many-core releases from AMD followed by Intel Cascade Lake-X series HEDT processors. With the more recent introduction of Ryzen 3000 and the announcement of Threadripper 3000 processors, the processor market and channel are once again turned upside-down (with a multitude of processors to choose from). And then everybody was waiting for that mainstream desktop processor release from Intel codenamed Comet Lake-S. Most of us expected this desktop series far earlier back in Q4 2019 already, but then COVID-19 struck the world, slowing any and all technology releases down.


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Starting today, it's here in many forms and product SKUs starting with the unlocked K series; the flagship desktop Core i9 10900K processor has a very significant 10 cores, which for Intel is a pretty staggering number as their primary processor business for the desktop consumer market had been releasing and refreshing quad-core processors for many years. That slowly changed thanks to pressure from AMD and, with the more recent Coffee Lake series, Intel has stepped up their game and we have seen some nice up-to 8-core parts in the 9900K series. The reality is simple, you cannot point your finger at Intel for that long quad-core strategy either, as there was too little competition - hence they had no rush and have been relaxed all the way. However, they've been perhaps a bit too comfortable in that position. And with AMD, a shift in that paradigm changed everything, rapidly. All of a sudden there were 6 and 8-core processors, nice and fast. But two to three years ago another dynamic changed as Intel got (more) hit by another problem, security weaknesses. With the industry and the world in general changing, everything online is attacked in some way or form. Yes, processor vulnerabilities started to really stack up for Intel, statistically significantly more than AMD. And albeit the vast majority of these vulnerabilities have been patched in software or firmware, it did have a tangible effect on performance, as well as Intel's long-lasting reputation. Current processors starting at Coffee and Comet Lake have been hardware hardened for the bigger part of Spectre and Meltdown like varieties as well as other vulnerabilities. To date, this, however, remains a sore spot and point for Intel. This entire paragraph was the perfect storm for the competition, in which they thrived. 

Today is all about CML, the 10th generation of Core desktop processors running up-to 10-cores. It requires a new platform as the processor socket has changed to 1200 pins, aka LGA1200. On April 30th of this year, 2020, Intel announced its tenth generation Core processors codenamed “Comet Lake-S”. Among the main features, we have HyperThreading through the entire line of Core products, so that's from Core i3 to Core i9, up to 10 cores and 20 threads and up to 5.3GHz for a single-core boost. As mentioned, these processors require a new motherboard, the 400 Series motherboards with an LGA 1200 socket. The new motherboards this round should last for Comet Lake-S (this gen) and Rocket Lake-S (next-gen). Much like generation 9 (Coffee Lake-S), Comet Lake-S and the following next-gen Rocket Lake-S are based on Intel's 14nm process and you could safely say are based on the underlying microarchitecture that is Skylake, but over time refined and advanced and scaled upwards. 


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That means the flagship desktop processor is the Core i9-10900K with ten cores + twenty threads hyperthreading (SMT), where a single core can go up to 5.3 GHz. A Core i7-10700K with eight cores and sixteen threads would clock in at 5.1 GHz on a single core. There are also unlocked Core i5 processors, the best being the Core i5 10600K which we'll review. The six cores and twelve threads will run a maximum of 4.8 GHz. You will notice the flagship processors have a Turbo Boost frequency listing of 5.3GHz thanks to what is called 'Intel Thermal Velocity Boost' technology. Basically, if the processor is kept cool enough, it can run a Turbo bin at that frequency.

On the next page, you can look closely at the processor prices and compare these back and forth, as Intel has roughly slashed prices in half. Most Comet Lake-S processors in the high-end segment are tagged with a 125W TDP. Priced at 262 USD, we'll be checking out that mainstream model Core i5-10600K in this specific review.

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