Performance and Benchmarks
How does the performance of my T420s compare with the Dell E6410? On paper, the CPU speed is similar. The Core i5-2520M CPU has a nominal maximum speed of 2.5GHz with TurboBoost allowing up to 3.2GHz under certain conditions. The CPU can not only run two threads per core, but the integration of the memory controller and GPU within the CPU die has enabled faster memory access and graphics performance. All the benchmarks have been run using 2 x 2GB RAM and some benchmarks have been run with both the supplied 320GB 7200rpm HDD and an Intel 320 SSD in order to see the impact of the SSD on results.
PCMark05 is a relatively old benchmark which measures overall performance. I am including it here because it enables comparison with some tests on older notebooks. On this benchmark the T420s lies ahead of my other computers while the Intel 320SSD gives a further major boost to performance.
PCMark Vantage is a newer and more thorough benchmark that tests a range of typical usage patterns. The T420s with a HDD represents a modest improvement on the T410s (which had a slower 1.8-inch HDD) but addition of the Intel SSD provids a major performance boost.
3DMark06 is used to measure 3D graphics gaming performance. I have included the results here to show how the performance of the Intel integrated GPU has improved over the past few years. According to this benchmark the Intel HD graphics in my T420s is substantially faster than the Nvidia GPU in the T410s. It?s time to check if my Flight Simulator will run smoothly using integrated graphics!
The Cinebench benchmark provides a useful measure of graphics rendering and OpenGL performance. It can be seen that the T420s represents a significant improvement over the E6410, particularly with the OpenGL benchmark. The 64 bit version of this software also shows a significant improvement in speed relative to the 32 bit version running on the same hardware.
Cinebench 10 results for graphics rendering and OpenGL performance (higher is better):
The supplied hard disk is a 7200rpm 320GB Seagate Momentus Thin. This uses only one platter. This is the first time I have measured a transfer rate of over 100MB/s on a 2.5-inch HDD.
CrystalDiskMark and HD Tune storage drive performance results: