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X220
Intel® Core™ i5-2540M Dual-Core Processor (2.60 GHz, up to 3.30 GHz / 3M Cache)
Windows® 7 Home Premium 64-bit (TC/ENG)
1 x 4GB DDR3 1333MHz / 1 Free Slot
320GB SATA HDD (7200rpm)
12.5" HD Anti-Glare / LED-Backlit (1366x768)
Intel® HD Graphics 3000 in processor
Li-Ion 6-cell Battery / Up to 7.5 hours
3-year Carry-in International Warranty / 1-year Warranty for Battery / 1-year Lenovo Protection Service
X1
Intel® Core™ i7-2620M Dual-Core Processor (2.7GHz, up to 3.4Ghz / 4M Cache)
Windows® 7 Home Premium 64-bit (TC/ENG)
1 x 4GB DDR3 1333MHz / No Free Slots
320GB SATA HDD (7200rpm)
13.3" HD Anti-glare display with glossy infinity Corning® Gorilla® Glass / LED-Backlit (1366x768)
Intel® HD Graphics 3000 in processor
Integrated Li-Ion 4-cell RapidCharge Battery / Up to 4.5 hours
3-year Carry-in International Warranty / 1-year Warranty for Battery / 1-year Lenovo Protection Service
T420
Intel® Core™ i5-2520M Dual-Core Processor (2.5GHz, up to 3.2GHz / 3M Cache)
Windows® 7 Home Premium 64-bit (TC/ENG)
1 x 2GB DDR3 1333MHz / 1 Free Slot
320GB SATA HDD (7200rpm)
14.0" HD Anti-Glare / LED-Backlit (1366x768)
NVIDIA® NVS™ 4200M (1GB Dedicated) / NVIDIA® Optimus™ technology
Li-Ion 6-cell Battery / Up to 7 hours
3-year Carry-in International Warranty / 1-year Warranty for Battery / 1-year Lenovo Protection Service
T420S
Intel® Core™ i7-2620M Dual-Core Processor (2.7 GHz, up to 3.4GHz / 4M Cache)
Windows® 7 Home Premium 64-bit (TC/ENG)
1 x 4GB DDR3 1333MHz / 1 Free Slot
320GB SATA HDD (7200rpm)
14.0" HD+ Anti-Glare / LED-Backlit (1600x900)
NVIDIA® NVS™ 4200M (1GB Dedicated) / NVIDIA® Optimus™ technology
Li-Ion 6-cell Battery / Up to 5 hours
3-year Carry-in International Warranty / 1-year Warranty for Battery / 1-year Lenovo Protection Service
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