At present, the major manufacturers of chips used in domestic portable GPS navigators include SiRF, Telechips, MEDIATEK, and MStar. The GPS solutions developed with the chips of these manufacturers are also very rich in configuration. GPS equipment manufacturers will choose one or more solutions to launch their terminal products, that is, manufacturers of the same brand will also choose different chips according to different situations to launch products of different grades and different functions.
The various chips introduced by various chip manufacturers have different performance and characteristics, so it is of practical significance to quickly identify the processor equipped with the navigator for quickly selecting the car navigation product that suits your requirements. Here is a brief introduction to various mainstream processors, so that everyone has a concept when buying (part of the information comes from the Internet).
1. SiRF chip
The domestic navigators that use the SiRF company's series of chips can be said to occupy most of the market share. This is because the company's chips have always had good performance, and the domestic GPS solution providers have introduced the most solutions, so they occupy an important position.
Excluding the very successful SiRFStarIII processor of the previous generation, the SiRF chips currently equipped with the navigator on sale include AtlasIV, Prima and AtlasV. AtlasIV (500MHzARM) and Prima (600MHzARM) were launched two years earlier. Due to the high frequency and many support features, the performance is outstanding. The products using this chip have always been the representatives of multi-functional and high-performance navigators on the market.
AtlasV supports various peripheral devices, such as CMMB, video input and other functions, while Prima products also support 3D hard press circuits such as OPENGL, which is more powerful. As for the AtlasV (500-664MHzARM) processor, it was only recently launched on the market. Compared with the Prmia processor, the 3D and video parts have been weakened, but the cost has been reduced, and the chip size has been reduced. It is a good partner for cost-effective products.
The AtlasIV processor navigator of the SiRF series is mainly aimed at the mid-to-high-end market. It has been launched for a long time, and the product price has also been lowered to a certain extent. The price varies from 599 yuan to more than 2,000 yuan according to different configurations; Prima core products are mainly aimed at the high-end, and the price is relatively high. According to different configurations, from 899 yuan to more than 2,000 yuan; and the newly introduced AtlasV processor is aimed at the entry market, there are not many additional functions, the product price is relatively low, mainly concentrated between 499 yuan and 1,000 yuan.
2. Telechips
Telechips' processors have always performed well in multimedia performance. I believe you have heard on MP4 portable multimedia players. The navigator using the processor of this factory also has good multimedia performance, such as Tcc7901 (500MHzARM). The advantages of RM file playback, the latest Tcc8901 (600MHzARM) processor supports 1080P full HD video decompression function.
In addition to the high frequency of 600MHz, the most prominent feature of TCC8901 is the support for video hardware decoding. The encoding includes MJPEG, MPEG-1, MPEG-2, MPEG-4SP, MPEG-4ASP, MPEG-4AVC (H.264), DivX, H. 263, WMV9, VC-1, RV, with 2D / 3D graphics acceleration engine, and OverlayMixer, can output smooth 1080P full HD video images.
The navigator using Telechips' Tcc7901 processor is currently not much on the market, and the price is relatively cheap, under 1,000 yuan; the latest launch of the navigator using Tcc8901 chip, mostly equipped with HDMI full HD output function, according to different configurations, the final The retail price of the product in the market is around 1100 yuan to 1700 yuan, and the price is good.
3. MEDIATEK chip
MEDIATEK, which is commonly referred to as MTK's MT3351 (468MHz ARM) processor, is still quite successful. This is because the chip has too many performances and features not to lose to AtlasIV, but the chip price is relatively low. There is not much information about MT3351 on the Internet. From the current terminal products, the features supported by the processor are still quite a lot. For example, CMMB mobile TV, AV-IN video input, Bluetooth, etc. can also be equipped one by one according to needs.
Products that use the MT3351 navigator, because most of them advertise cost-effectiveness, the hardware configuration is not necessarily satisfactory, for example, some are equipped with 64MB cache, and some are equipped with 128MB cache, so when the navigation system is actually operated, the effect is still certain The difference, this needs attention.
MEDIATEK's chips have always been regarded as cost-effective. AtlasV processors introduced by SiRF seem to have a large part of them coming from MTK's MT3351. At present, the products using MT3351 chip on the market have prices between 399 yuan and 2,000 yuan, which are relatively cheap depending on the configuration.
Four, MStar chip
Mstar is also a well-known manufacturer of ARM processors, but currently only one MSB2501 (400MHz ARM) chip is used in the mainstream navigators still sold in China. Due to the relatively low frequency, there is not much competitiveness in terms of performance, so there are not many manufacturers and final products using this chip, mostly entry-level products, and the configuration of high-definition screens is rare or even unavailable.
The performance of the MstarMSB2501 is not outstanding. The overall performance of the navigation products resulting from this chip solution seems to be similar to the previous SiRF StarIII processor navigator, so it has a slight disadvantage in the latest round of product performance competition. However, because the price of its navigator is quite cheap, it is still in a certain market if it is maintained at 399-499 yuan or even lower.
V. Summary
The above price ranges are only collected from the current media mainstream product quotes, and may actually be different from the actual market price. According to the different additional function configurations given by the manufacturers to the navigator, even if the navigator with a lower cost chip is used , The actual selling price may also be higher than the navigation device of the higher price chip.
For example, the most popular CMMB mobile TV, real-time road conditions, mobile speed radar, Bluetooth, reversing wireless rearview and other configurations can also be used with different chip navigation devices, and the prices of their final products are also different.
Therefore, when choosing a navigator, in addition to recognizing the processor, it is necessary to comprehensively consider the brand value, function configuration, after-sales service and other aspects, and choose the product that best suits your requirements, so that you can use it comfortably and spend the money. . Here is not a list of tedious detailed hardware parameters, not exhaustive, but I hope that through this simple chip review, we can let everyone have a conceptual understanding. When facing the dazzling car navigation system, there is also a standard of judgment . For more information, please log in to the electronic enthusiast website (http: //)
Yuchai ≥1000KW Diesel Generator
Yuchai ≥1000Kw Diesel Generator,Yuchai Shanghai Genset,Yuchai Shanghai Power Generator,Yuchai Power Generator Set
Shanghai Kosta Electric Co., Ltd. , https://www.ksdpower.com