Intel Core 2 Duo Processors have a whopping 4 mb L2 cache memory while the Turion 64 X2 has only 1 mb L2 cache. The bigger the cache memory, the better processing and multi-tasking power the computer can do.
Here's the deal why I became an Intel fan. A year ago, I bought my very first laptop. It was an HP Pavilion DV9000 series laptop. 17" screen, built-in webcam, 2 gb of ram, geforce go 6100 graphics, very sleek design. It was powered by an AMD Turion 64 X2 processor though... At first, I was a big fan of AMD that's why I bought the laptop even if it was $1,300 USD. I did not doubt the power of the laptop and even skipped testing the demo unit from the store. When I got home, I then started testing its power by installing my tools for testing including 3DMark 2001 and 2003 plus some games. After installing all those softwares, I began testing and benchmarking my new laptop and to my surprise, this is the score I got from running 3DMark 2001, a very low 4577 points". Seeing my new laptop's score, the world stopped at that moment and I just froze. My previous desktop pc which was powered by an AMD Athlon XP 2400+ (2 ghz) and a ram of only 256 mb plus a geforce 5200 vga card had an 8000+ points. Fortunately, after a week, I was able to sell the laptop. It was easy to make that decision. Because of the need, I had to buy another laptop, with the same size of the screen, 17". During that time, all the branded and top-of-the-line laptops were sold out already. I saw some gateways and tested them. The one I bought was a 17" one with this time, an Intel Core 2 Duo Processor. It was worth buying it even if the graphics card was integrated. With the benchmarks i've done, it gave me 8000+ points on 3DMark 2001 and was quite fast on some 3d games like Warcraft 3, Generals, Max Payne 2 and other not-so-high-end games. It was working fine, but I wasn't still satisfied with it...
3 months ago when I was still in the U.S., I went to Costco to buy some stuff. Sometimes when you're not looking to buy something, that's when you find the stuff you're looking for... I wasn't really planning to buy a new laptop but when I saw this one, my eyes grew big and I started shaking... 17", Intel Core 2 Duo (2 ghz, T7300), 2 gb ram, GeForce Go 8600M GS with 256 mb dedicated graphics, 320 gb dual hard drives, Lightscribe DVDRW Drive and Windows Vista Home Premium, all these stuff for only $1,600 USD inclusive of tax was just awesome! 16000+ points on 3DMark 2001, 7000+ points on 3DMark 2003. Very fast on games like Tiberium Wars, Warhammer, Need for Speed, Transformers, Titan Quest, NBA Live, Harry Potter, Star Wars, Fable and more. It also supports playback of HD Videos.
Based on that experience, I can really say that Intel Processors rule right now although for sure, AMD will try and beat the crap out of them again like they did before... But who knows when??...
So there it is. I hope I was able to give you some useful infos.
'Nuff said.