During the keynote address earlier this morning at the Worldwide Developers Conference in San Jose, Apple announced that its twelve-inch MacBook models are getting faster Intel chips and speedier flash storage. MacBooks now ship with Intel’s seventh-generation Intel Core CPU platform, code-named “Kaby Lake”, that was unveiled in March.

The clock frequency has been increased to 1.3 GHz, but Intel’s Turbo Boost technology can temporarily increase the CPU clock speed to up to 3.6 GHz during heavy workloads. Flash storage is now up to fifty percent faster and the notebooks now support up to twice the RAM than before, for up to 16GB of RAM.

Configure-to-order options available via Apple’s online store allow you to outfit your new 12-inch MacBook with up to a 1.4 GHz Core i7 processor with Turbo Boost up to 3.6 GHz.

The following stock configurations are available:

$1,299 MacBook

  • 12-inch 2304-by-1440 LED-backlit display with IPS technology and 16:10 aspect ratio
  • 1.2GHz dual-core Intel Core m3 processor with Turbo Boost up to 3.0GHz
  • 8GB 1866MHz LPDDR3 memory
  • 256GB SSD storage
  • Intel HD Graphics 615
  • Built-in keyboard with second-generation butterfly mechanism

$1,599 MacBook

  • 12-inch 2304-by-1440 LED-backlit display with IPS technology and 16:10 aspect ratio
  • 1.3GHz dual-core Intel Core i5 processor with Turbo Boost up to 3.2GHz
  • 8GB 1866MHz LPDDR3 memory
  • 512GB SSD storage
  • Intel HD Graphics 615
  • Built-in keyboard with second-generation butterfly mechanism

“Weighing just two pounds and measuring 13.1mm thin, MacBook is our thinnest and lightest notebook for all-day, on-the-go computing,” says the company. The refreshed MacBooks continue to be available in Apple’s standard Gold, Rose Gold, Silver and Space Gray color finishes.

The updated MacBook models—along with improved iMacs, specc’d up MacBook Pros and a slightly updated 13-inch MacBook Air with a faster 1.8GHz processor—are available to order today on Apple.com. You can buy them in Apple Stores starting on Wednesday, June 7.

For other tech specs, configure-to-order options and accessories, visit apple.com/mac.