![]() It has a 3.7 GHz base frequency, which is a nice bump, but the boost frequency is just 4.7 GHz. The i7-8700K seems like a more modest upgrade over the i7-8700. That’s just a measurement task, so we’ll address that in our review and update here when the NDA expires on Oct 5. Intel’s Turbo Boost algorithms also increase performance at various rates based on the number of active cores, even if all of them are active, but unfortunately the company is no longer providing us with complete Turbo tables in advance of our testing. We’re looking at a 300-400 MHz increase in boost frequencies between generations, which promises snappier performance in lightly threaded applications. Intel offsets these lower base frequencies with much-improved boost frequencies, which means the processor will spin up to higher speeds when the additional cores aren’t needed. Even though the processor utilizes an improved 14nm++ process, the basic rules dictate that something has to give somewhere. The additional cores consume more power, which equates to heat. Interestingly enough, the Intel Core i7-8700 models feature a drop in base frequency compared to the Kaby Lake counterparts, but this is largely the result of packing more cores into the same package. The i7 series benefits from Hyper-Threading, so the six cores schedule 12 threads in parallel. The Coffee Lake lineup has been in development for years, and although the changes to the chips themselves seem designed to parry AMD’s thrust, the relatively early rollout is the only real indicator that Intel is feeling the heat of Ryzen.įor now, though, we want to compare Coffee Lake to Kaby Lake. We’ll find out if these CPUs reflect the company’s promises when we load them up on our test bench. ![]() Of course, that’s needed to fend off AMD’s core-laden assault, but the benefits make a splash in the form of 25% more FPS in games (according to Intel) and 45% better “mega-tasking” performance (again, per Intel’s claims). But adding 50% more cores to the i7 and i5 series and 100% more cores to the i3 lineup promises to unlock the most performance we’ve ever seen from mainstream Intel processors. Intel’s performance projections, which primarily focus on application-level performance as opposed to synthetic benchmarks that scale linearly, appear somewhat modest. The biggest improvement between Kaby Lake and Coffee Lake is the addition of two more cores to Intel’s mainstay Core i3, i5, and i7 families. In either case, connectivity options, such as the dual-channel memory support and 16 PCIe lanes from the processor, remain identical for the 300-series motherboards. (“H” and “B” motherboards are suitable for the locked models.) Expect to wait until early next year for the value-centric 300-Series H and B motherboards (for Coffee Lake), though. You will also need to account for the extra cost of a premium “Z” motherboard to overclock the unlocked “K” SKUs. ![]() They rely on the same microarchitecture, with Coffee Lake being effectively (ahem) caffeinated with a slightly refined manufacturing process (14nm++) over Kaby Lake (14nm+), as well as more cores and threads across the board, a different allocation of cache resources, and a few new overclocking knobs and levers.Įach of these chip generations requires a different chipset (100-Series or 200-Series for Kaby Lake, 300-Series for Coffee Lake ), and you need to factor that into your cost/benefit equation as well. Coffee Lake and Kaby Lake are similar in many ways.
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