Science popularization: Broadcom dual core CPU+dual core VPU processor analysis | Iooku - 上海419贵族宝贝-上海后花园1314-上海品茶网-阿拉爱上海

With the outbreak of the domestic smartphone industry, many chip manufacturers have also started to launch chip products for smart phones to customers. For the domestic market, Qualcomm, MediaTek, nVIDIA and other manufacturers have released relevant chip solutions, which have become increasingly competitive and attract more and more attention in the market below 1000 yuan. Under this situation, the old manufacturer Broadcom recently launched a new concept of four core smart phone solution to further compete for the consumer market.

Broadcom, founded in 1991, is a major technology innovator and global leader in the field of wired and wireless communication semiconductors. Broadcom provides a wide range of on-chip systems and software solutions for manufacturers of computing and network devices, digital entertainment and broadband access products, and mobile devices. These solutions support the core task of Broadcom: Connecting everything.

The chip launched this time is called "four core" Broadcom BCM28155/28145. In fact, Broadcom BCM28155/28145 is not a true four core product, but a dual core A9 CPU+dual core VPU (vector processor) design. There is no need to say more about the concept of A9. Here is a brief introduction to VPU. VPU (Visual Processing Unit) is a concept proposed by ATI, which is different from the traditional GPU (Graph Process Unit, NVIDIA). In fact, both are display processing cores, and there is no difference in essence. The VPU equipped in the BCM28155/28145 has a main frequency of 250MHz, 16 instructions per clock cycle, and extremely low power consumption.

So, what are the advantages of this Broadcom BCM28155/28145? There are the following points:

1. Mainstream performance: The BCM28155/28145 run was scored at the mainstream level, the Antu run was scored at 6527, and the TAIJI run for dynamic video was scored at 33FPS.

2. Load distribution balancing: The VPU allocates and schedules GPU information, and processes GPU instructions. The VPU and CPU can evenly allocate tasks, further reducing the CPU burden, and the overall power consumption can be better controlled. Compared with the measured results of traditional quad core processors, the load of one CPU of the H264 1080P HD video quad core A9 processor reaches 70%, and the other three are unloaded, while the load of the two CPUs of the BCM28155 is only 7%, which is excellent.

3. High wireless integration: Benefiting from the leading advantages of Broadcom in wireless interconnection, Broadcom BCM28155/28145 will also integrate a series of functions such as Wi Fi, Bluetooth, GPS, NFC and wireless charging. In addition, HDMI and WiFi Display interfaces will be added to increase support for HSPA+, and the overall functions will be more complete.

4. Turnkey solution: Like the current service methods of MediaTek and Qualcomm, Broadcom provides turnkey solutions to provide customers with integrated services, reduce R&D investment and accelerate product cycle.

Nokia N8 and Nokia PureView 808

Before that, the processor products of Broadcom had been widely used. The most typical cases are Nokia N8 and Nokia PureView 808. These two mobile phones are equipped with Broadcom's BCM2727 and BCM2763 processors, ARM 11 architecture, Symbian ^ 3 and Belle operating systems. The high-quality cameras on the two models are impressive.

The BCM28155/28145 dual core CPU+dual core VPU scheme launched this time will help Broadcom to further seize the middle and low-end smartphone market. Although the market competition is fierce at present, the introduction of new products in a differentiated way is still quite interesting on the whole, and the specific performance can wait and see.

About the author