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 ...
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 sometimes absorb significantly more is probably also due to their somewhat too high idle time. Despite the immense measuring period of 30 minutes, the measured differences in the range of one watt and less are still passed through as measurement tolerances.
The average value of a typical application with 2D and 3D load components then coincides with the actual measured performance values for the new Intel CPU. So there are no big surprises, even compared to the Core i5-8600K.
Gaming has a slightly more balanced but very similar picture. The Core i5-8400 is fully in the TDP class:
In the stress test with AVX, however, you quickly break this limit if you do not limit the power consumption on the motherboard in this particular use case. Without any limitation in the BIOS, the Core i5-8400 also achieves values that are significantly higher than the TDP class.
Temperatures
Despite the thermal paste, the smaller Core i5 can be kept in check comfortably and safely with air or an AiO compact water cooling system. This would be enough even in case of an emergency with AVX, so it doesn't always have to be the most expensive and expensive cooler.
The fact that such a result has hardly any significant advantages is again due to the high delta between Die and IHS, which results from the thermal conductive paste used. With a good air cooler you would still be below 90°C, which is still sufficient with almost double the power dissipation.
Intermediate conclusion
Again, it's amazing what it can swallow a small CPU if you just provoke it properly. Nevertheless, the Core i7-8400 is relatively easy to cool, even and especially with air.
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