
ARM roadmapa
Moderátoři: flanker, Eddward, Baneshee






AMD expects the two new design wins to bag a lifetime combined total revenue of approximately $1 billion over around a span of three years starting from 2016. It has already been revealed that both the new semi-custom chips would feature integrated Radeon graphics, and while one of them would be based on the company’s ARM architecture, the other one would feature x86 general-purpose cores. Recently, the chief financial officer of the American multinational semiconductor company revealed that one of these two semi-custom APUs is aimed at powering a “beyond gaming device”, which apparently means that the other one will power a device that falls under gaming category.





ARM claims that A72 on 16FF+ is 3.5x higher performance than an A15 on 28nm silicon in the same power budget. For the record they also claim an A57 at 20nm is 1.9x faster than the A15 for the same power, think almost 2x generationally. SemiAccurate asked ARM for a few more details here and they claimed that most of the gains were from architectural advances, less than half was from the process.
ARM’s new CCI-500 interconnect family
CCI on the other hand is aimed at mobile rather than high throughput comms usages so power and efficiency are the key goals. CCI is a crossbar instead of a ring and as of the -500 line, can scale to 4 ACE clusters, up two from CCI-400. That means you could see 16-core phones popping up with the A72 allowing user to have a full 14 cores idle instead of the current six in state of the art devices. If that isn’t progress, I can’t say what is. Think of the screen sizes this will enable!
CCI-500 is said to offer twice the bandwidth of the -400, 30% CPU memory performance increase, and do it all with less power. Some of this performance increase and scalability is due to support for four memory channels, up from two earlier. The problem there is with 16 cores and four memory channels, the bus gets a bit clogged. That is where the efficiency of CCI-500 comes in.
Next up is the new Mali-T880 GPU family, successor to last fall’s Mali-T860 GPU. The T880 is a claimed 1.8x faster than last generation’s T760 and 40% more efficient.












