1. Pricing and Cost: One of the major differences between AWS Certificate Manager and GoDaddy is the pricing structure. ACM provides free SSL/TLS certificates for use with AWS services, while GoDaddy charges a fee for each certificate. This can significantly affect the overall cost for users, especially for those who require multiple certificates.

2. Integration with AWS Services: AWS Certificate Manager is designed to seamlessly integrate with various AWS services, such as Elastic Load Balancer, CloudFront, and API Gateway. This integration allows for easier management and automatic renewal of SSL/TLS certificates within the AWS ecosystem. On the other hand, GoDaddy certificates can be used with any hosting provider or service, but may require additional configuration and manual management.

3. Ease of Use and Deployment: ACM offers a simplified and streamlined certificate management experience, specifically tailored for AWS users. The process of requesting, provisioning, and deploying SSL/TLS certificates is automated and can be done directly from the AWS Management Console or through the AWS CLI. GoDaddy, on the other hand, requires users to manually generate a certificate signing request (CSR) and go through a more traditional certificate issuance process.

4. Certificate Types and Validation: AWS Certificate Manager primarily offers domain-validated (DV) certificates, which require the certificate requester to prove ownership of the domain. GoDaddy, in addition to DV certificates, also provides organization-validated (OV) certificates that require more extensive validation, including verifying the legal existence of the organization. The choice between these certificate types may depend on the level of assurance and trust required for specific use cases.

5. Certificate Renewal: ACM simplifies the certificate renewal process by automatically handling certificate renewal and deployment for AWS services integrated with ACM. This eliminates the need for manual renewal and potential certificate expiration issues. GoDaddy, on the other hand, requires users to manually renew their certificates before their expiration date, which can be a manual and error-prone process if not managed properly.

6. Support and Customer Service: AWS provides support for AWS Certificate Manager through their official support channels, such as documentation, forums, and customer support. GoDaddy, being a dedicated certificate authority, offers more extensive customer support options, including live chat, phone support, and email support. The level of support required may vary depending on the user's needs and preferences.

In Summary, AWS Certificate Manager (ACM) provides free SSL/TLS certificates for use with AWS services, integrates seamlessly with AWS services, offers simplified certificate management, primarily offers domain-validated certificates, automatically handles certificate renewal, and has support provided by AWS. In contrast, GoDaddy charges a fee for certificates, can be used with any hosting provider or service, requires manual certificate management, offers both domain-validated and organization-validated certificates, requires manual certificate renewal, and provides more extensive customer support options.