Coquettish Rebirth

On the other side, after Mr. Ni Guangnan gave a general report on computing performance and other performances, he will then conduct power consumption tests.In terms of the simplest test, what the old man did was really violent - because the interface of such a pu uses a 479 interface, which is the same as Intel's Celeron m and Pentium m processors that are now specially used on notebooks. The interface is the same.So the old man used a very awesome trick - he directly found a notebook motherboard, and then broke all the printed circuits on the motherboard that are responsible for power supply to the pu, and then soldered it on the first power supply line. Flying leads, that is, external wires are connected, and the power meter and battery are connected!

That's right, this old man actually connected the chargers of several mobile phones together in parallel and in series, so that the voltage rose from 3.7v to the voltage allowed by the pu line, and then added a power meter between the battery and the pu line. You can simply calculate how much power the pu uses!Is this awesome?Must be awesome!The calculated power is similar to what Wang Xuehong and his technical supervisors revealed before. When simply playing DVDs, the power consumption of the pu is about 4 or so.Then the old man compared two sets of similar battery power, one with the Pentium 4m pu and the other with the VIA 7-m. The final result is that the VIA 7-m can last twice as long as the Pentium 4m!The power consumption of this thing seems to be really suitable for placing on a tablet!The old man and the others play DVDs here, but they really use DVDs in the DVD drive to play them!Then the whole machine is powered by the power supply, just such a pu is powered by the battery!The pu power consumption calculated by this thing can be said to be the most accurate test result!And based on such a result, that is to say, if a tablet is used to play a DVD with a resolution of 720x480, this pu can actually support about 11 hours. If it uses 3 batteries to form a 12000 mAh With a battery pack, can such a pu watch video for 11 hours?And is it the resolution of a dvd?

What if the resolution of the video is not 480p?What if it's just 320p resolution?Even with the power consumption of the screen.In the end, maybe it can maintain a battery life of five or six hours, right?If there is such a battery life, it can be said that this tablet will have such a possibility to be made and sold on the market!Of course, this still does not count the consumption of graphics chips and so on.But this pu can play "World of Warcraft", do we need such a high frequency?Drop the frequency or something.If it is not done well, it will be able to make enough electricity for the graphics card chip, right?This is absolutely possible!So Jia Hongjian asked directly at this time, "Do you still have a PU with a lower frequency? The same technology? By the way, what frequency does your PU run when it is in standby?" There are many different frequencies, right?These are all 1.5g Hz, will there be any 1.2 or even 1g Hz?If there is, it would be great to use it, then the graphics card chip will be able to use the power consumption directly, right?And on the other hand, Jia Hongjian has used later generations of CPUs such as Core i3 and i5, and he knows that these later generations of PUs are not working.It will actively reduce the frequency!So will VIA have such a setting in such a year?Just after Jia Hongjian finished asking this question, the technical director of Wang Xuehong answered, "Report to Mr. Jia, our ultra-low voltage version has three versions: 1g, 1.2g and 1.5g. The usual power consumption is 3, 4, and 5 watts respectively, and the standby frequency of all three of them is 400mHz..."

How many? 400m Hz?Such a frequency is high enough!Moreover, all three versions maintain such a high standby frequency!No wonder the standby power of 1.5g is 2 watts!If Jia Hongjian remembers correctly, the standby frequency of this Xiaomi mobile phone seems to be less than 300mhz when it is n-core in later generations!Why does such a pu have such a high standby frequency?You must know that the PU standby frequency of mobile phones is high, especially because of the high standby frequency of various Android mobile phones, and it is mainly due to various mistakes in Android design!Because various backgrounds cannot be killed at all, there is always software running in the background of this mobile phone.So isn't it causing the standby frequency to keep coming down?Because according to the analogy of a car, when the pu is in standby, it should be the same as when the car is in neutral and the engine enters the idling state.At this time, the engine should only be kept on the lowest running state.If there is a "demand" at such a time that leads to constant stepping on the accelerator, the car cannot go out because it is in neutral, and as a result stepping on the accelerator causes the engine speed to continue to rise, and then the fuel consumption will naturally consume a lot!

If our mobile phone is well optimized to reduce various demands, then the minimum operating speed of such a pu should be quite low in the end, right?After all, our new Android system is much simpler than computer systems like XP. It is impossible to run so many system basic services like the XP system, and there is no need for a minimum operating speed of 400mHz!Maybe the minimum operating speed of 200mhz is enough for the system to maintain itself and wait for it to be awakened!And will the standby time be longer in this way?After Jia Hongjian raised such a question.He quickly heard the technical director nod and replied: "Yes, Mr. Jia. We can reduce the minimum operating frequency of the pu... But how much the minimum should be reduced depends on the specific test..."

Heard here.Jia Hongjian suddenly thought of another question, so he hurriedly asked: "Then can you adjust the highest frequency? For example, lower the frequency of 1g Hz to 800mhz?" When the chip is perfect, it will try to block the content of a part of the chip, and frequency reduction can certainly be done..." The technical director replied.As soon as he heard this, Jia Hongjian knew there was something going on!Maybe it's possible to use this pu on a tablet after getting it down like this!Of course, the pu used here is definitely not a 1g pu after simply limiting the frequency, but a processor that encapsulates the pu and gpu set to 800mhz after reproduction!It can be said that Jia Hongjian wanted to semi-customize a processor!

"At the same time, our PU can be paired with our VIA all-in-one chipset, so we don't need to buy additional graphics chips. We have graphics chips with independent intellectual property rights..." The technical director hurriedly said at this time.Hearing this, Jia Hongjian was not surprised at all. VIA has been working on chipsets, and it is quite normal to make an onboard graphics chip by the way!If Jia Hongjian operated VIA, he would definitely let VIA make the onboard graphics chip. In this way, it would be equivalent to providing a complete solution for motherboard manufacturers, and the business would be much easier!However, Jia Hongjian doesn't seem to be using VIA's graphics chip at all, because this graphics chip is really... not so good!

Just like the s3-graphis-series onboard graphics card developed by VIA itself, it was developed by VIA two years ago, and Jia Hongjian seems to have played with it in history.As a result, the onboard graphics card is so weak that it is a complete mess. It is not certain whether it can match the discrete graphics card in 98, so it seems that the DVD hard solution is stuck!Not to mention playing games and the like!Maybe it will be a bit stuck when watching any online videos on the tablet in the future!The strength of this via in the field of graphics cards is actually not as good as that of Intel!When Intel released its own motherboard chipset, it also provided its own graphics card onboard chip!Although the performance is also weak, it is still stronger than via VIA's graphics chip!After all, what size company is Intel?Intel may not be able to catch up with professional graphics card manufacturers such as INVISTA in its non-professional graphics card field for a while, but it will be a matter of minutes to surpass a manufacturer like VIA that has also developed graphics chips for a few years!So why did Jia Hongjian still use VIA's own graphics card?Not to mention that Jia Hongjian himself controls INVISTA, and it's not like he doesn't have shares in the graphics card company!

As for Invista, in the past few years, it has really developed a lot of graphics chips for mobile platforms-in the past two years, companies like Nokia began to promote the concept of so-called smart phones.Huang Renxun is not stupid. He is sitting on a graphics card chip suitable for computers and notebooks. Why can't he develop more chips suitable for mobile phones for low-power platforms?After Huaxia Hi-Tech announced their mobile phone in 05, this old Huang even asked their company to step up the development of chips for mobile platforms, because INVISTA, even Huaxia Hi-Tech’s brother company, has such a relationship. dead?Jia Hongjian made a phone call, and Lao Huang directly led the team and flew to China with the graphics card chip they had just developed two days ago!

Coincidentally, this old Huang began to allocate funds last year to let the company specialize in the development of embedded graphics chips with Huaxia High-tech as a high-end target.If it hadn't been for Jia Hongjian to call, after a few days this old Huang found a TSMC chip, he would definitely come to Jia Hongjian to sell their new graphics chip!Hearing that the graphics card chip specially developed by Lao Huang for Huaxia Hi-Tech just happened to be a success, this immediately made Jia Hongjian full of expectations!How is the performance of this chip?How about power consumption?Can it achieve the level of 3 watts?If it can be done, we can actually prepare to start making such a tablet now!