chip design company SiFive, which is based on the open source RISC-V architecture, announced that it will launch new SiFive Performance series processors P670 and P470. The two new products can meet the needs of small size high performance and high efficiency for large-scale applications such as wearable devices, smart homes, industrial automation , AR/VR and other consumer devices.
SiFive says that the performance P670 and P470 products provide a combination of computing density, energy efficiency and powerful feature sets, which are very suitable for a variety of applications and markets. The main features include:
support virtualization, including a separate IOMMU for accelerating virtualization device IO.
Complete and disordered RISC-V vector implementation, based on the RISC-V Vector v1.0 specification.
is the first to launch the RISC-V vector encryption extension.
SiFive WorldGuard system security.
fully complies with the RISC-V RVA22 configuration file.
compliant with the new Advanced Interrupt Architecture (AIA) interrupt controller, better supports message signal interrupt (MSI) and virtualization.
enhances scalability through completely consistent multi-core and multi-cluster, and supports up to 16 cores.
Performance P670 provides a variety of features, including achieving maximum frequencies over 3.4GHz in 5nm; performance above 12 SpecINT2k6/GHz, providing optimal performance over a limited area and power range; providing higher single-threaded performance and twice the compute density compared to traditional solutions; including a 2x 128-bit vector ALU compliant with RISC-V Vector v1.0 specification.
Performance P470 is SiFive's first out-of-order, area-optimized vector processor that focuses on efficiency. It has been expanded on the basis of the past Performance P500 series. After optimization, it has first-class performance efficiency and area density, and the calculation density is four times that of its leading competitors. It can also be used as a supporting product for Performance P670, suitable for demanding applications that require sharing computing resources and optimizing power consumption. SiFive will also release the area-optimized version of Performance P470, which does not include vector units.
SiFive's Performance P600 series focuses on performance, and the predecessor of Performance P670, the P650, can be compared with the Arm Cortex-A77 in terms of performance. The Performance P470 is designed as a supporting chip for the Performance P670. Both can form a big.LITTLE configuration similar to Arm in smartphones and tablets.
