Performance and Benchmarks
I have to thank the team at Lenovo for providing a review unit of the ThinkPad X1 with essentially the same configuration as our review unit of the ThinkPad X220. The 12.5-inch ThinkPad X220 isn’t much smaller than the new X1 and I suspect a few potential X1 buyers will also consider the purchase of the X220.
As with the X220, Part of the feature news in terms of specs is the use of the latest Intel “Sandy Bridge” processors. Our review unit came equipped with the Intel Core i5-2520M dual-core processor. This CPU has a standard clock speed of 2.5GHz and quickly steps up to a 3.2GHz turbo frequency whenever the notebook is performing a difficult task or running a complex application.
In fact, the only major differences between the hardware configuration of the X220 and the X1 are that the X1 didn’t come with a fancy IPS display and the X1 uses an integrated battery with a lower watt-hour rating. The synthetic benchmarks for the X220 and the X1 show that these two notebooks offer virtually identical performance while the difference in scores is easily attributable to the margin of error for the benchmarks and the fact that the X1 uses a few newer Windows drivers.
The 320GB Hitachi Travelstar Z7K320 hard drive in our review sample is extremely speedy for a 7mm HDD and is quick enough for average tasks. Lenovo also offers a number of optional solid state drives (SSDs) ranging in capacities of 80GB to 160GB.
wPrime processor comparison results (lower scores mean better performance):
PCMark05 measures overall system performance (higher scores mean better performance):
PCMark Vantage measures overall system performance (higher scores mean better performance):
3DMark06 measures overall graphics performance for gaming (higher scores mean better performance):
3DMark Vantage measures overall graphics performance for gaming (higher scores mean better performance):