| T400 | T410 | T420 | T430 | T440 | T500 | T510 | T520 | T530 | |
| Year | 2008 | 2010 | 2011 | 2012 | 2013 | 2008 | 2010 | 2011 | 2012 |
| CPU Gen | Penryn | Arrandale | Sandy Bridge | Ivy Bridge | Haswell | Penryn | Arrandale | Sandy Bridge | Ivy Bridge |
| Max RAM | 8GB 2xDDR3 | 8GB 2xDDR3 | 16GB 2xDDR3 | 16GB 2xDDR3 | 8GB+4GB 1xDDR3 | 8GB 2xDDR3 | 8GB 2xDDR3 | 16GB 2xDDR3 | 16GB 2xDDR3 |
| Optimus | NO | NO | YES | YES | YES | NO | NO | YES | YES |
| Display Res | 1280x800 1440x900 |
1280x800 1440x900 |
1366x768 1600x900 |
1366x768 1600x900 |
1366x768 1600x900 +touch v |
1280x800 1680x1050 1920x1200 |
1366x768 1600x900 1920x1080 |
1366x768 1600x900 1920x1080 |
1366x768 1600x900 1920x1080 |
| Display Size | 14.1" 16:10 | 14.1" 16:10 | 14.1" 16:9 | 14.1" 16:9 | 14.1" 16:9 | 15.6" 16:10 | 15.6" 16:9 | 15.6" 16:9 | 15.6" 16:9 |
| Keyboard | Original | Original | Original | Chiclet | Chiclet + Flat TP | Original | Original | Original | Chiclet |
| Weight (lbs) | 4.7-5.6 | 5 | 4.9 | 4.77 | 3.7 | 6.45 | 5.89 | 5.74 | 5.56 |
| Avg Price (Used) | $100- $130 | $200 | $330- $350 | $450- $550 | $750+ | $120- $150 | $200- $250 | $400- $700 | $570- $800+ |
