iMac

 

 

 

 

iMac 21.5-inch: 2.7GHz | 2.9GHz
iMac 27-inch: 2.9GHz | 3.2GHz
2.7GHz or 2.9GHz quad-core Intel Core i5 
8GB of 1600MHz DDR3 memory, supports up to 16GB 
1TB 5400-rpm hard drive 
NVIDIA GeForce GT640M graphics processor or NVIDIA GeForce GT 650M graphics processor with 512MB of GDDR5 memory
2.9GHz or 3.2 GHz quad-core Intel Core i5 
8GB of 1600MHz DDR3 memory
Supports up to 16GB or 32GB 
1TB 7200-rpm hard drive 
NVIDIA GeForce GTX 660M graphics processor with 512MB of GDDR5 memory or NVIDIA GeForce GTX 675MX graphics processor with 1GB of GDDR5 memory