A Core 2 Duo IS a Centrino dual core. i7 is generally the best of that bunch, followed by the i5 and i3. The i3 will be better than a C2D at same clock speed due to the newer architecture The Intel Core 2 Duo P7450 is a dual core processor for laptops.It features 2.1 GHz and a shared level 2 cache of 3 MB. It is based on the 45nm Penryn core, but Trusted Execution and There are 2 types of Core processor, Solo and Duo. Core Solo means it has only one processor in its chipset, while Core Duo means it has 2 processors in one chipset similar to Pentium Dual Core and Centrino Dual core. The most sophisticated processor at the moment is the Core 2 Duo Extreme with up to 3.2GHz clock speed which uses the 64bit The Centrino 2 is old and a different socket than any i5. You COULD probably change the ram, but that too would be useless, since 8gb of ram on a Centrino 2 is like putting a spoiler on a broken car, no offense. The range of scores (95th - 5th percentile) for the Intel Core2 Duo T6500 is just 17.6%. This is a relatively narrow range which indicates that the Intel Core2 Duo T6500 performs reasonably consistently under varying real world conditions. Sounds like an apples and oranges comparison. Core 2 Duo is a type of CPU chipset, of various models. Centrino is a package of chipset (apparantly could be a duo, or a cheap @ss pentium, or another dual core intel) along with the wireless system. In other words - a marketing gimmick. Price and performance details for the Intel Core2 Duo P9600 @ 2.53GHz can be found below. This is made using thousands of PerformanceTest benchmark results and is updated daily. The first graph shows the relative performance of the CPU compared to the 10 other common (single) CPUs in terms of PassMark CPU Mark. Intel Core Duo T2450 @ 2.00GHz (33%) 411 NA; Qualcomm Technologies, Inc QCM2150 (33%) 409 NA; Intel Core Duo T2500 @ 2.00GHz (33%) 408 $119.99* ARM Cortex-A53 4 Core Intel Core Duo T2300 @ 1.66GHz. This chart comparing CPU benchmarks is made using thousands of PerformanceTest benchmark results and is updated daily. The CPU you selected has been found and highlighted from amongst the high, medium and low end CPU charts. If you would like to select a different CPU type please return to the CPU List. G.SKILL Trident Z DDR4 3200 C14 4x16GB $364. SanDisk Ultra Fit 32GB $16. Based on 60,820 user benchmarks for the Intel Celeron N2840 and the Core2 Duo E7500, we rank them both on effective speed and value for money against the best 1,429 CPUs. hD6l.