With the launch of its Coffee Lake refresh, Intel finally switched to a solder-based thermal interface material (sTIM), improving heat transfer between its die and heat spreader. However, optimized mitigations could help deliver more of a performance uplift to enthusiasts migrating from much older platforms. Compared to the Core i5-8400, we didn't measure any significant speed-ups beyond what we expected. That impact is greatly reduced on newer processors. The overhead of software-based patches applied to older processors can reach as high as 10% in certain workloads. The Core i5-9400 models also include new baked-in silicon mitigations for the Meltdown vulnerability, along with a combination of hardware- and software-based mitigations for the Spectre and L1TF vulnerabilities. Relative to the Core 5-8400, Intel boosts the -9400/-9400F's base frequency and Turbo Boost clock rate by 100 MHz, which should yield slight performance benefits. As a result, we now have the F-series, which includes disabled graphics hardware, but is otherwise identical to the fully-featured Core processors we're more accustomed to. To boost supply, the chip-maker decided to start selling CPUs that it would have otherwise deemed defective due to nonfunctional graphics units. Intel's lingering lack of 14nm capacity reverberates through every facet of the industry. Intel Core i5-9400F (Intel Core i5) at Amazon for $141.25 (opens in new tab).These chips have now taken our Best CPUs list by storm, so be sure to head there for a list of the latest leading processors. You can also see how the chips stack up in our CPU Benchmark Hierarchy. It'll also wield the new Zen 2 microarchitecture, which is expected to boost performance while Intel remains mired in a derivative of the seven-year-old Skylake design. The updated Ryzen line-up employs a smaller 7nm process that should confer power and price benefits. (Image credit: Tom's Hardware)Īs Intel struggles to satisfy demand for its chips, AMD has launched its Ryzen 3000-series processors.
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