If you want to save money without sacrificing too much image quality, you can try AMD Ryzen 3 or i3 processor with GTX 1650 or RX 570 graphics card.This combination may need to slightly reduce some special effect settings to ensure a stable frame number, which can barely cope with the 6000 budget
Another option is Intel i5-9400F with GTX 1660 Super, plus 1TB HDD and 16GB memory.Although it is not as smooth as high-end configuration, it is more than enough to play Infernal Affairs, and the price is controlled at around 5700
You can consider a desktop computer with a mid tier configuration, such as the AMD Ryzen 5 3600 with RTX 2060, plus 8GB DDR4 memory and 240GB SSD, so the budget is about 5500 yuan.Choose a 1080P high brush display. The overall game experience is good