The first MacBook Pro was released in January, 2006. The Original (Model IDs 1,1 and 2,1) came with DDR2 667 RAM for MacBook Pro. There are two basic sizes, the 15.4" LCD display or the 17" display. Apple offered a 1.83 GHz, 2.0 GHz, and 2.16 GHz Intel Core processor, and a 512 MB and a 1GB memory option. It used the ATI Mobility Radeon X1600 graphics card. You could find 80 GB, 100 GB, and 120 GB Serial ATA hard drives.
• MacBook Pro Model IDs 2,1 and 2,2: These machines came out in late 2006, and were available in the 15.4" and 17" variety. They had 2.16 GHz and 2.33 GHz Intel Core processors, and 1 GB or 2 GB of memory. They had the same ATI Mobility Radeon X1600 graphics card as the earlier models. You could find 120 GB, 160 GB, or 200 GB Serial ATA hard drive options with the computers.
• MacBook Pro Model ID 3,1: This machine was available in 2007, and featured LED backlighting for the 15.4" or 17" screens. They offered 2.2 GHz or 2.4 GHz Intel Core 2 Duo Merom processors, 2 GB of memory, and hard drives that were 120 GB or 160 GB.
• MacBook Pro Model ID 4,1: Out in 2008, this machine was relisted in the later part of the year. It was available in the same sizes of 15.4" or 17". Originally it had only an LCD screen, but eventually had the LED backlighting. Initially, it was available with a 2.4 GHz Intel Core 2 Duo Penryn processor, and later with a 2.5 GHz processor. It first had 2 GB of memory, while the later issue had 4 GB of memory. The machine had a 200 GB or 250 GB Serial ATA hard drive.
• MacBook Pro Model IDs 5,1 through 5,5: This family of machines was released in late 2008 and early to mid 2009. These MacBook Pros featured 15" displays as well as 17" displays. The computers offered a number of different processors including a 2.26 GHz, 2.53 GHz, 2.66 GHz, or 2.8 GHz Intel Core Duo Penryn. Memory varied from 2 GB to 4 GB. It also offered 160 GB, 250 GB, 320 GB and 500 GB hard drive options.
• MacBook Pro Model ID 6,1, 6,2, and 7,1: These came out in mid-2010 and again featured the 15.4" and 17" displays. They had 2.4 GHz or 2.6 GHz Intel Core Duo Penryn processors. They had 4 GB of memory in two slots with a 2 GB card in each slot. They had 250 GB, 320 GB, or 500 GB hard drives.
• MacBook Pro Model IDs 8,1 to 8,3: Released in 2011, these came in 13", 15.4" and 17" displays and included FaceTime. These had 2.3 GHz or 2.7 GHz processors for the 15.4" models and 2.4 GHz or 2.8G GHz processors for the 17". They had 4 GB of memory. The 13" had a 320 GB hard drive, while the others had a 500 GB or 750 GB Serial ATA hard drive.
• MacBook Pro 9,1 and 9,2: Released in 2012, they are available in 13" and 15" displays. They have 2.5 GHz, Intel Core i5 processors and 2.9 GHz Intel Core i7 processors. These computers came with 4 GB or 8 GB of memory, upgradable to 16 GB. Hard drives of 500 GB and 750 GB Serial ATA are available.
• MacBook Pro Model ID 10,1: In the middle of 2012 came this computer, which had a 15.4" display, a 2.3 GHz quad core or2.6 GHz quad core Intel Core i7 processor. This also features 8 GB of RAM that is not user upgradeable. Available with a 256 GB, 512 GB or 768 GB SSD hard drive.
• MacBook Pro Model ID 10,2 and 10,3: These latest models, coming out in late 2012 and early 2013, have 2.5 GHz or 2.6 GHz i5 processors, as well as models with 2.4 GHz or 2.7 GHz I7 processors. The Retina Display computers have 8 GB or 16 GB of built in RAM on board, and you are not able to upgrade this. For this reason, it is important to purchase your MacBook Pro with your desired total amount of RAM. You will also find a number of different hard drives. They have 128 GB, 256 GB, 512 GB drives and 768 SSD.
These last two models, the 10,2 and the 10,3, are the only ones that are still available from Apple today. As with so many other computers, the earlier models are all discontinued. The Retina Display models that you can find in the stores now are high quality and have all the great features that one would expect from an Apple product.