• Architecture: Coffee Lake
  • Process: 14nm
  • Base Clock: 2.8GHz
  • Boost Clock: 4.0GHz
  • Cache: 9MB
  • TDP: 65W
  • Pros:
  • Performance
  • Value
  • Cons:
  • None
  • Benchmark Results
  • Cinebench: 950cb
  • PCMark 8 (Home): 4,366 points
  • PCMark 8 (Creative): 5,262 points
  • PCMark 8 (Work): 3,656 points

Have A Coffee By The Lake

The processor war has been hot with the release of AMD’s Ryzen processors, and nothing is better than competition as motivation to outdo each other. After much wait the new Coffee Lake processor from Intel has been launched this month, and we’re lucky enough to get our hands on the Intel Core i5-8400.

The launch of Coffee Lake is a pretty big deal for the fact that Coffee Lake has increased the core count across their i-Series processors. The i3 is now a quad-core processor from dual-core, while the i5 and i7 processors are now hexa-core processors. The Z370 chipset also uses a new LGA1151 socket, which is physically similar to the Z270 but doesn’t support older processors so it’s important to note that. As for this processor itself, the Intel i5-8400 is targeted for the average consumer.

Clocking in with a basic core clock of 2.8GHz, the 8400 can hit higher clock speeds of 4.0GHz when its turbo kicks in. It also supports DDR4-2666MHz memory natively. For its integrated graphics, it uses a UHD Graphics 630 that sports a 350MHz base clock and boost clock of 1.05GHz, as well as a 9MB L3 cache. When you add all of that, along with the fact that the TDP is just 65W, the Core i5-8400 becomes an excellent choice for building an office PC or HTPC.

Performance wise the 8400 definitely does it job, cranking in scores that we expected. With six true cores, consumers are able to get more core counts for lower prices and we might see developers start putting more effort into multi-core optimisation. Temperature wise the 8400 idles at 40°C but when stressed it could hit temps of up to 80°C. Fortunately, these numbers are based on Furmark torture tests and you’re more likely to see an average of 60-70°C on heavy loads and gaming.

If you’re getting the 8400 for gaming you won’t be bottlenecked when playing games like DotA2 and LoL, but if you’re aiming to play some triple A titles you might have to look at something with higher performance for the best experience. But just the 8400 alone without a dedicated graphics card is still suitable for watching movies or doing office work.

CHIP CONCLUDE: If you’re on a budget, the i5-8400 is a great choice with its true six cores, which used to be found only on higher end processors.

(previously published in issue November 2017)

Intel Core i5-8400