If you are planning to buy a used MacBook Pro, then you need to take it seriously. Here are the parameters you need to pay attention to when buying.
YouTube channel expert “I don’t rummage!” in an issue on the Rozetked channel, reviewed a used 2014 MacBook Pro 15′ concurrently for $700 and listed the features that you should pay attention to when buying such a model.
In general, the 2014 MacBook has a number of shortcomings. For example, a screen replacement will cost as much as a full laptop. In addition, the display has an anti-reflective coating, which often peels off.
Another important point is the processor and video card. MacBook 2014 can spontaneously turn off, both under load and without it. This problem can be solved in service centers.
When checking the laptop, it turned out that it had problems with the power adapter. This is due to the fact that the adapter is not “native”, but Chinese. That is, this charger will have to be changed to the original.
Sound and screen are fine. You can see the test results in benchmarks below.

The specialist also checked the operation of Bluetooth, Wi-Fi, ports, keyboard, SSD and battery status. However, when you connect headphones to the MacBook, the speakers disappear in the sound settings, because the laptop thinks that a device is connected to it via mini-Toslink (this is an optical output designed to transmit sound in good quality).
This is due to the fact that this mini-Toslink is built into the headphone jack, and the switch between them gets stuck from time to time. In order to fix this, you have to carry the laptop to the workshop and change the connector.
You can play CS:GO on the MacBook Pro 15′ version at medium settings with a resolution of 1680 x 1050, while the average frame rate will be 40 fps with drawdowns up to 20 fps. At 1200 x 800 with very low shadow quality, the average FPS will be over 100 fps.