Lenovo thinkbook 14 g4 aba amd ryzen 7 July 8, 2019 16 32 64 128 Lenovo thinkbook 14 ryzen Lenovo thinkbook 13s g4 arb amd ryzen 7 6800u Lenovo thinkbook 15 g2 ryzen 7 4700u Thinkbook ryzen 7 Thinkbook 15 gen 4 amd
