Although the T4500 has 3mb of cache vs 1mb of the p6100, the p6100 will score better in virtually everything due to the 0.3GHz clockspeed advantage. http://www.cpu-world.com/CPUs/Pentium_Dual-Core/Intel-Pentium%20Mobile%20P6100.html
http://www.cpu-world.com/CPUs/Pentium_Dual-Core/Intel-Pentium%20Dual-Core%20Mobile%20T4500%20AW80577GG0521MA.html