AMD intends to actively explore the market for tablet computers and light notebooks, with single-chip system Temash and Kabini. These solutions consist of cores with Jaguar architecture.
This week at the conference Solid-State Circuits (ISSCC) AMD spoke again about microarchitecture Jaguar.
As you know, Jaguar is the direct successor of Bobcat architecture . Overall, the new computing cores AMD engineers were able to increase the number of executed instructions per clock cycle by 15%, improved by 10% their potential frequency and power efficiency . It is important to note that Jaguar-based solutions are modular and consist of blocks Compute Unit, containing 4 cores. The structure and APU Temash Kabini is just one CU, but the PlayStation 4 processor use two of them, .
Jaguar have added new instruction set, including streaming SIMD-extensions SSE 4.1 and SSE 4.2, instructions advanced encryption standard AES, AVX instruction set and other extensions - such a variety of typical, perhaps, a desktop processor. Physical address bus width is increased to 40 bits, the bus block floating point also increased to 128 bits. Completely redesigned cache in the second level: CU has four banks of L2 cache total 2 MB, and the computing cores access to the cache by the general for all bus.
The physical size of the core Jaguar is 3.1 square meters. mm, although the area of one CU will be equal to 26.2 square mm . Typical heat range will not exceed 5 watts, their older relatives - Kabini - will be characterized by a TDP up to 25W. This processor can run at a higher frequency at lower voltage compared to solutions based on Bobcat, which is expected, given the transition to 28-nanometer production technology.
Announcement of processors Kabini and Temash is scheduled for the current half year, probably in May or June.