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Dear Lenovo users, hello!
Hello, the configuration of T420 machine you listed is generally a second-hand machine, please pay attention to ask the seller for a formal invoice and warranty card. A brief introduction to the T series.
The E431 is one of the most cost-effective machines on the Thinkpad, but it's still slower than the T420 with a solid-state device. ThinkPad E Series Brief Introduction::
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In terms of series, the E series does not retain value, and it is also the lowest in the Think series, which can basically be regarded as the Lenovo home machine series, and it has nothing to do with Think. Just look for the e-series**. The T series is definitely much better in terms of workmanship.
This kind of book,It's not a game book originally.,So,It doesn't matter much about the configuration.。 The main thing is office. In terms of configuration, the 431 is definitely better.
I personally recommend you to buy the T420
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All three are the series names of notebooks,There are multiple models,Different models with different configurations,There is no saying that anyone is good and who is bad,Mainly according to actual needs and usage habits to choose,The main difference between these three is in the screen size and processor model:
Screen size: The E540 screen size is inches, while the E440 and E431 screen sizes are 14 inches.
Processor Model:
The processor models of the E431 are: i5 3230M, i5 3320M, i3 3110M, i5 3210M,
i7 3632QM, Celeron Dual-Core 1000M, i5 2520M, i3 3120M, i3 2348M, i5 3340M,
Intel Pentium dual-core G2030, i3 3130M.
The processor models of the E440 are: i5 4200M, i5 4210M, i3 4000M, i7 4712mq, and i7 4702mq.
The processor models of the E540 are: i5 4210M, i7 4712MQ, i3 4000M, Intel Celeron Dual Core 2950M, i5 4200M, i7 4710MQ, and i7 4702MQ.
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431 last generation, 440 540 last generation, best sell, 550 450 latest generation, better workmanship and better configuration, electronic products buy new not buy old.
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I'm going to buy it too. About 1500 yuan, pay attention to whether it is a refurbished machine, the refurbished screen will be yellow. The mainland is full of parallel goods, so the quality should be good. You can take a look at the specifics.
Huawei G330D, you go and try it, I like it.