thunderbolt Intel cans 3.4W TDP Cactus Ridge Thunderbolt chip

We're not sure if this is good news or bad news, but Intel has decided to cancel one of its planned Thunderbolt chipsets in the upcoming Cactus Ridge range of chips. The company has canned the 3.4W TDP part, also known as the L3510H in favour of the lower power L3510L.

We're not sure if this is good news or bad news, but Intel has decided to cancel one of its planned Thunderbolt chipsets in the upcoming Cactus Ridge range of chips. The company has canned the 3.4W TDP part, also known as the L3510H in favour of the lower power L3510L.

Technically there is no different between the 3.4W TDP L3510H and the 2.8W L3510L Cactus Ridge Thunderbolt chips, although we presume that Intel was planning on charging more for the lower power part as it would've been targeting the notebook market space with the 3.4W part going into desktops and powered devices.

The L3510 is a 4-channel Thunderbolt controller and it's set to replace the original Thunderbolt controller known as Light Ridge or 82523EF/EFL which launched towards the end of 2010. The L3510 is a smaller 12x12mm chip – compared to 15x15mm for Light Ridge – and with the changes it's also slightly more power efficient. Intel has also managed to implement additional features on-chip for Cactus Ridge, such as a DisplayPort redriver, a connection manager and a link controller which should help drive down the cost of implementing Thunderbolt as well as help to reduce the PCB space taken up by the components needed.

That said, Intel isn't expecting to have final samples for its customers until mid-April, or about four weeks late according to its earlier schedules. This is unlikely to have a huge effect on any actual products now with the new Ivy Bridge Ultrabooks not launching until June or even later in the year. In related news, Intel is planning a Thunderbolt developer lab in Taiwan later this month for its partners to give them additional training and advice as to how to best implement the technology in their products.