The difference between thinkpad t480 and t490

The beggar’s version of the T490 is very cost-effective, but it is not recommended to buy it because it has a pale TN screen unless you have the ability to change the screen yourself

The backlit keyboard and the The typing feel of the backlit keyboard is much worse (the low-end version does not have a backlit keyboard) (Recommended study: phpstorm)

The T490 integrated display configuration only has one heat pipe, and the independent display configuration is standard Equipped with dual heat pipes

T490 has an optional 2K high-definition IPS screen, and the color display coverage effect is also good. Compared with T480, this is a significant advantage

The design of T490 makes the battery built into the fuselage. It is lighter than the T480 design, but the battery life is weaker.

It is recommended to expand and upgrade the memory and hard disk by yourself, rather than buying it directly from the official The high-end configuration is much more cost-effective

The original factory configuration of T490 is i5 8g 256g. The official refurbished price of independent display 2K screen is 7600

If you choose one of T480/T490, you should obviously Choose T490, because the processor performance of T490 is slightly improved compared to T480

If you think about it outside the T series, in terms of computing performance alone, it is obviously 5, Gaming laptops with standard voltage processors in the 6K price range have better performance.

The low-voltage processor matched with the T490 is even an i7. It is also a low-voltage processor with a main frequency of only 1.8GHZ. It can be used by any The 8th generation standard i5 can beat it in seconds

MATLAB mainly depends on the main frequency and processor, choose one with a high main frequency

The positioning of the new generation T series has undergone relatively big changes. The T490 is more like the T480s of the past. I also considered T490 at first because the new screen seemed to be of good quality. However, the T490 has several significant weaknesses:

The battery capacity has shrunk to 50Wh (X1 Carbon, T490s and T480 are all 57Wh)

The heat dissipation of the non-discrete graphics version is very weak. It is basically difficult to suppress the i7 CPU: T480 has two 8mm heat pipes, while T490 only has one 6mm heat pipe.

Maintainability becomes worse. Only 1 RAM can be replaced, and the 2.5 hard drive port has been deleted.

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