Technically, the former is called cash exchange rate and the latter is called spot exchange rate. Cash exchange rate refers to the exchange rate at which you sell foreign currency banknotes (banknotes and coins) to banks and convert them into RMB; Spot exchange rate refers to the exchange rate at which you sell money or foreign exchange checks in your bank account to the bank and convert them into RMB.

Generally speaking, cash is not as valuable as cash, because it also involves expenses such as storage and transportation.