Difference between an app generated with active record and an app without active record

gistfile1.sh

diff -r app-with-ar/Gemfile app-without-ar/Gemfile
6,7d5
< # Use sqlite3 as the database for Active Record
< gem 'sqlite3'
diff -r app-with-ar/Gemfile.lock app-without-ar/Gemfile.lock
97d96
<     sqlite3 (1.3.9)
123d121
<   sqlite3
diff -r app-with-ar/config/application.rb app-without-ar/config/application.rb
3c3,10
< require 'rails/all'
---
> # Pick the frameworks you want:
> require "active_model/railtie"
> # require "active_record/railtie"
> require "action_controller/railtie"
> require "action_mailer/railtie"
> require "action_view/railtie"
> require "sprockets/railtie"
> require "rails/test_unit/railtie"
9c16
< module AppWithAr
---
> module AppWithoutAr
Only in app-with-ar/config: database.yml
diff -r app-with-ar/config/environments/development.rb app-without-ar/config/environments/development.rb
22,24d21
<   # Raise an error on page load if there are pending migrations.
<   config.active_record.migration_error = :page_load
< 
diff -r app-with-ar/config/environments/production.rb app-without-ar/config/environments/production.rb
80,82d79
< 
<   # Do not dump schema after migrations.
<   config.active_record.dump_schema_after_migration = false
diff -r app-with-ar/config/initializers/wrap_parameters.rb app-without-ar/config/initializers/wrap_parameters.rb
10,14d9
< 
< # To enable root element in JSON for ActiveRecord objects.
< # ActiveSupport.on_load(:active_record) do
< #  self.include_root_in_json = true
< # end
diff -r app-with-ar/test/test_helper.rb app-without-ar/test/test_helper.rb
6,11d5
<   # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
<   #
<   # Note: You'll currently still have to declare fixtures explicitly in integration tests
<   # -- they do not yet inherit this setting
<   fixtures :all
< 

The differences are relatively minor. The important ones are in config/application.rb and config/environments/*.rb.

Note: I snipped out some absolutely irrelevant diffs - app/views/layouts/application.html.erb, etc.