It's been almost eleven years since Intel released its first quad-core desktop CPU, the glued-together Core 2 Quad Q6600, and what a glorious processor it was. The 65nm quad-core chip operated at 2.4 GHz, but back then boost clocks weren't a thing and CPUs operated on a front side bus.
Since then we've seen eight major architectural updates and four die shrinks spanning a decade. Yet after all that time, Intel still only offers up to four cores on its mainstream processors, the latest of which was released in January as the $340 Kaby Lake Core i7-7700K.
Shortly after that, AMD did something we all hoped they'd do (even if we weren't convinced they could) by releasing a highly competitive CPU architecture. Ryzen certainly disrupted Intel's 'business as usual' type of attitude in the PC market and it’s been fireworks ever since.
AMD hit Intel the hardest by offering more cores for less money, which was kind of the strategy with Bulldozer, but this time the cores didn't completely suck. IPC performance is slightly below Intel's latest and greatest but Ryzen's efficiency is excellent, so AMD isn't giving anything up here. The biggest advantage Intel has right now is its superior clock speeds and this is something AMD hopes to address next year.
Before AMD can do that, Intel is hitting back with its eighth-generation Core series, which counters Ryzen with cores, lots of cores. Although Ryzen 7 will still have a core count advantage, Intel is now making six cores the standard for their higher-end parts. The new Core i5 and Core i7 processors now pack six cores and that's going to have a considerable impact.
On hand today we have a flagship part, the Core i7-8700K, which is based on Intel's new "Coffee Lake" architecture. We also have the Core i5-8400, but we'll be looking at that CPU separately in the coming days. We do not have the Core i5-8600K yet, but the plan is to get one of those shortly, too. For now, let's focus on the big guy and with six cores and 12 threads, the 8700K certainly means business.
Designed to operate no slower than 3.7 GHz, it will boost a single core as high as 4.7 GHz, and under full load should maintain an operating frequency of 4.3 GHz. Each of the six-core processors features a 256KB L2 cache while there is a much larger 12MB L3 cache. Intel has given the chip a 95 watt TDP rating and once again they are using the LGA 1151 socket, though this can be considered a second version that is in no way compatible with previous Kaby Lake or Skylake CPUs.
Pricing has been adjusted from the 7700K as the 8700K, a $20 price hike which comes in at a rather steep $360.
That also makes the 8700K $60 more expensive than AMD's Ryzen 7 1700, the company's cheapest and unlocked Ryzen 7 part. The 1700X is also priced at $360, but smart shoppers will opt for the cheaper non-X model and I've had just as much luck overclocking both to 4 GHz.
Unlike the high-end desktop Skylake-X parts on the LGA 2066 platform, the new Coffee Lake CPUs still use the ring bus and not the mesh inter-connect method of the higher core count parts. This is great news and it means the 8700K will maintain the 7700K's gaming prowess and should in fact be able to take things to the next level in this category. So without wasting any more time, let's see how this thing handles...