Moving Towards BGA Only?
The sky is falling. Does this mean that Chicken Little is panicking for no reason or is Chicken Little the Cassandra of our time? It has been widely reported that Intel will not be offering the next generation Broadwell architecture as a LGA based product. Broadwell is a 14 nm product that will integrate southbridge functions into the chip, making it essentially a SOC. It will be offered only as a BGA only product, which means that it will be soldered onto a motherboard with no chance of being able to be swapped out. Broadwell is the successor to the upcoming Haswell, itself a 22 nm product that features many architectural changes to both the CPU and graphics portion as compared to the current 22 nm Ivy Bridge.
Will Broadwell be the death of the desktop industry and enthusiasts? Will LGA become as scarce as chicken teeth? Will we ever see a product with a swappable CPU after 2014?
Broadwell is aimed at TDPs ranging from 10 watts to 57 watts. Current high end Ivy Bridge parts max out at 77 watts and do not feature any southbridge type functionality. So that means that another 5 to 7 watts are added in for the chipset when discussing basic system TDPs. So we are looking at around 87 watts for a top end product when including SATA and USB functionality. 30 watts is a pretty big deal in OEM circles. We see right off the bat that Intel is aiming this architecture at a slightly different market, or at least a changing marketplace.
The unease that we are seeing is essentially this; Intel appears to be trying to take more profits from this setup and pass more costs onto the motherboard industry. This is not necessarily new for Intel, as they did this when transitioning to the LGA socket. LGA sockets are more expensive and more troublesome for the motherboard manufacturers as compared to a more traditional pin based interface. AMD continues to use pin based chips as this lowers the cost that is incurred by the motherboard manufacturers, and it also lowers overall support issues. LGAs are pretty solid, but it is very easy to bend one or more of those contacts so that they in fact do not create a solid connection with the CPU. This is something that is uncommon with pin based CPUS, but the downside of pin based is that it is more expensive to produce the CPU in the first place as compared to a LGA chip which only features the pads on the substrate of the CPU.