What are the major differences between the Audi R8 V8 and V10 engines?

I'm considering buying an Audi R8, but I'm not sure if the performance increase is worth the price jump from the V8 to the V10 engine. Looking for a breakdown of the key differences between the two options.

The Audi R8 V8 is equipped with a 4.2L naturally aspirated V8 engine, providing 430 horsepower and 317 lb-ft of torque. The V10, on the other hand, has a 5.2L naturally aspirated V10 engine with 540 horsepower and 398 lb-ft of torque. The V10 offers a significant increase in power and acceleration, making it the ideal choice for enthusiasts seeking the ultimate driving experience.