AWS Lambda Memory Vs CPU configuration

In AWS lambda environment we can specify only the memory configuration. Is there any documentation as to what the CPU config will be for a given memory configuration?

For example,

  ApiLambda:
    Type: AWS::Serverless::Function
    Properties:
      Description: "This function handles the example"
      CodeUri: "./app/"
      Handler: "app.handle_request"
      MemorySize: 128
      Timeout: 60
      Runtime: python3.7

I am trying to find the minimum MemorySize for a particular number of cores. Is there any way to know the boundaries of MemorySize where the #Cores changes without bruteforcing MemorySize?

Ref:

https://aws.amazon.com/about-aws/whats-new/2020/12/aws-lambda-supports-10gb-memory-6-vcpu-cores-lambda-functions/ https://docs.aws.amazon.com/lambda/latest/dg/configuration-memory.html