Reviews

Intel Core i5-8400: how good is the "small" i5 in practice?

Since Coffee Lake-S is becoming more and more a digital launch and the hardware is not really available in quantities, we could actually take our time. The new Intel Core i5-8400K, like the rest of the family, is also... In the AI test of Civilization IV, all CPUs again position themselves exactly as one might expect from the technical data. In the Time Spy CPU test, AMD's Ryzen 5 1600X is very positive, which is well ahead of the new C... At this benchmark, the Core i5-8400 is slightly behind the Ryzen 5 1600X, but ahead of the overclocked Ryzen 5 1500X. The Ryzen 5 1400 and the older Core i5, on the other hand, do not matter. Individual results of all maps Both Core i5 slate up to about 140 FPS, but are already scratching at the GPU limit. The (overclocked) Ryzen 5 1600X can still keep up, the rest then drops continuously. Individual results of all maps AMD is ahead with the Ryzen 5 1600X, rare enough, but even quite clear. The overclocked Ryzen 5 1500X can also be cleared. Individual results of all maps Clock is everything, at least for the Ryzen 5, because you can only hold the connection if the processor has been overclocked properly. But that's exactly what Ryzen 5 includes, you just have to do it. The Core i5 8400 is exceptionally fast... Intel ahead of AMD and only the overclocked Ryzen 5 can hold port. Without extra clock, however, nothing can be done. The Core i5-8400 cuts a good figure and the Ryzen 5 1400 is a total failure without overclocking. Individual results of all maps ... Intel again ahead of AMD, but the overclocked Ryzen 5 can hold port and place themselves in front of the older Core i5. The Ryzen 5 1400 is once again the clear final light without overclocking. Individual results of all maps Intel as usual before AMD, but this time much clearer. The overtaken Ryzen 5 can't hold on, but they're still ahead of the older Core i5. The Ryzen 5 15600X also makes it unbeatable in front of the older Core i5-7600K and the... Finally, Intel's Parade(at) game. AMD's Ryzen 5 must completely stroke the sails, the GTA scales extremely modestly with the number of possible threads. Even the older Core i5-7600K with the overclocked Ryzen 5 1600X can hold with you... Important preliminary remark on CPU selection and overclocking Contrary to our usual handling, not benchmarking the productive areas with overclocked CPUs, as it is also rather unlikely in reality, this time we have two of the R... 2D Performance In order to better understand some of the later results, we are putting forward a good old acquaintance. With our GDI/GDI+ benchmark, we are first testing two different output methods for 2D objects, how to... CPU Performance: Workstation Of course, in the production area, not only the 3D graphics performance is important in the production area for the just-set applications, because many things are calculated by the CPU in parallel within these applications (Simu... Power consumption in detail There are no really dramatic differences in the Idle. Nothing really dramatic and all the other CPUs are still within the limits of what we were able to measure before. The fact that the Ryzen 5 is partly Summary As with the slightly more expensive Core i5-8600K, the Same applies to the Core i5-8400: Two cores more for the middle class are a nice addition. But whether they will really be sufficient in the near future remains ...

Important preliminary remark on CPU selection and overclocking

Contrary to our usual handling, not benchmarking the productive areas with overclocked CPUs, as it is also rather unlikely in reality, this time we tested two of the Ryzen 5 CPUs both in factory condition and overclocked. Since you sell these CPUs with an open multiplier compared to Intel (and advertise them as well), we just want to test the free push input.

DTP and Presentation

With Adobe's Creative Cloud, we use an exemplary benchmark that can well represent both single and multi-core performance. This test of a production application makes more sense than synthetic benchmarks. After Effects CC is the classic parade horse for parallelizable work, where core numbers go beyond clock.

But no matter how we turn and turn it, as long as all the cores can't be used, Coffee Lake usually wins thanks to the slightly higher bar. With Adobe's InDesign CC, however, as almost always, the phenomenon occurs that the Core i5-8400 falls reproducibly behind the Core i5 7600K – for whatever reason.

 

3. Encoding and Multimedia

In our selected test with Handbrake, the new Core i4-8400 can keep up with the standard specifications in its class, but is on a par with the not overclocked Ryzen 5 1600X.

Only with the more elaborate high-quality setting does the whole thing look a little different. Here AMD's Ryzen 5 1600X can narrowly dominate the Core i5-8400 due to the larger core count and SMT, and if you overclock it properly, even the rest.

4th. Compression and decompression

The six cores of the Core i5-8600K, coupled with the high clock speed, give the CPU the class victory again, even if the more expensive Core i5-8600K performs a tick better.

Decompress also destroys anything that isnotonly on the trees at three. Only the Core i5-8600K is even faster.

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About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

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