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A silver rectangular CPU with gold contacts on the underside and a green substrate visible around the edges

Intel

Intel Core i5-8400 SR3QT desktop processor

SKU CH-TP1A-XBZ7C

Six-core Coffee Lake desktop processor for LGA 1151 boards, running at 2.8 GHz with 9 MB cache and 65 W TDP

  • Processors TypeProcessor
  • CPU Socket TypeLGA 1151
  • Core NameCoffee Lake
  • # of Cores6-Core
  • # of Threads6-Threads
  • Operating Frequency2.8 GHz
  • Six cores handle parallel workloads efficiently
  • Base clock of 2.8 GHz provides steady compute performance
  • 9 MB L3 cache reduces data latency
  • 65 W thermal design keeps power draw moderate
  • Supports up to 128 GB of DDR4 memory

Six-core desktop processor for everyday workloads

The Intel Core i5-8400 delivers six cores and six threads at a base frequency of 2.8 GHz. It fits the LGA 1151 socket and supports dual-channel DDR4 2666 memory up to 128 GB. A 65 W thermal design power keeps cooling requirements modest for typical builds.

Sustained multi-threaded performance at fixed power

With six physical cores the chip handles parallel workloads such as compilation, rendering or virtualisation without relying on short burst speeds. The 9 MB L3 cache reduces latency when data sets exceed individual core caches. Thermal output remains steady at the rated 65 W during extended sessions.

LGA 1151 mounting and mainstream platform

The processor drops into existing LGA 1151 motherboards that support the Coffee Lake architecture. Dual memory channels and a maximum capacity of 128 GB give flexibility for memory-heavy applications. The 65 W envelope allows standard tower coolers to maintain low noise levels in daily use.

Pontos fortes

  • Six cores handle parallel workloads efficiently
  • Base clock of 2.8 GHz provides steady compute performance
  • 9 MB L3 cache reduces data latency
  • 65 W thermal design keeps power draw moderate
  • Supports up to 128 GB of DDR4 memory

Especificações

BrandIntel
Processors TypeProcessor
CPU Socket TypeLGA 1151
Core NameCoffee Lake
# of Cores6-Core
# of Threads6-Threads
Operating Frequency2.8 GHz
L3 Cache9MB
Memory TypesDDR4 2666
Memory Channel2
Max Memory Size128 GB
Thermal Design Power65W

Perguntas sobre este artigo

How loud and hot does the 65W i5-8400 get when it runs all day?

The processor has a 65W thermal design power, so a standard LGA 1151 cooler keeps temperatures and fan noise modest during continuous loads.

What motherboard and memory must I already own for this LGA 1151 CPU to work?

You need an LGA 1151 socket motherboard and DDR4 2666 modules; the controller supports two channels up to 128 GB total.

Will the i5-8400 run on my older LGA 1155 board alongside my existing parts?

No, the i5-8400 requires an LGA 1151 socket; it is physically and electrically incompatible with LGA 1155 motherboards.

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