First up is the Ryzen 7 2700U, this APU features the Radeon Vega 10 Mobile integrated graphics processor. If the readings are accurate, this version has 8 CUs with a total of 512 stream processors.
Next we have the Ryzen 5 2500U, this model has Radeon Vega 8 Mobile graphics and the odd thing is the listing claims this part has 11 CUs with a total of 704 stream processors. Perhaps the readout isn't entirely accurate.