Intel Core i5-8400

MSRP: $69.00

The Intel Core i5-8400 is a budget-class gaming processor with 6 cores and 6 threads, well matched to mainstream 1080p gaming. Strong per-core performance keeps the Intel Core i5-8400 feeding your graphics card without stutter. To get the most from it, pair it with a GeForce RTX 5060 or similar mid-range GPU, 32GB of DDR5 RAM and a Gen5 NVMe SSD.

Memory speed matters more than many gamers expect: running DDR5 in dual channel at the right speed can add real frames, especially in CPU-bound titles. A balanced build keeps the CPU and GPU within one performance tier of each other so neither bottlenecks the other — check the pairing with the free Bottleneck Calculator.

With a 65W TDP, the Intel Core i5-8400 needs adequate cooling — a quality air cooler or AIO keeps it at full boost clocks. A strong processor like this also underpins a VR-ready rig, feeding a Meta Quest 3 or Valve Index the steady frames they need. Find the right cooler with the Cooler Finder.