The 3 B+ on the other hand, upgrades to the LAN7515 for Gigabit over USB 2.0 connectivity.
The older models will still be available: Raspberry Pi 1B+, Raspberry Pi 2B, and Raspberry Pi 3B will continue to sell for $25, $35, and $35.
The main improvements are to networking.
The computer is still very affordable, as the Raspberry Pi foundation has kept the price the same as the earlier Pi 3 Model B. The device is available right now from Raspberry Pi Foundation partners, including Amazon. Raspberry Pi opted for BCM2837B0, which is the same chip found in the original 3B but this time around, it's capable of reaching a higher clock speed of 1.4GHz. Furthermore, the magjack port hardware supports Power over Ethernet (PoE). For me, the only tests that failed to show off the board's capabilities measured wired and wireless connectivity-with the B+ not really distinguishing itself from the Raspberry Pi 3 despite its superior specs.
The Pi 3 Model B+ is faster, but also consumes more power and might overheat during resource intensive tasks.
Selling for just $35, the UK-made machine has become something of a phenomenon, selling close to 18 million boards since the first Pi was released in 2012.
The B+ model is the most powerful Pi product so far and it manages to combine the advantages of all the previous ones. "I think what we've ended up with is something which is a really good B+, a bit too good for a B+, but that would be not really anywhere near enough for a Raspberry Pi 4". This means the Pi qualifies as a single radio module under FCC regulations, which reduces the cost of conformance testing for IoT devices based on a Pi.
To date, over 19 million Raspberry Pi computers have been sold.
Finally, the Raspberry Pi 3 Model B+ now supports Power over Ethernet (PoE), with a PoE HAT capable of providing the necessary 5V of power set to arrive in the near future. The reason is that the Pi 3 B+ needs "substantially more power than its predecessor". Speaking to TechRepublic, Upton said, "It's not a Raspberry Pi 4".