AMD Athlon 64 X2 3800+ - 2 GHz Dual-Core (ADA3800IAA5CU) Processor

Unless you use software that has been specifically written for multi-core processors (like some newer adobe graphical applications) you are wasting your money as a single-core processor may well be faster than the multi-core processor that you have upgraded to! It is only newer and faster hard disk and graphics technology on a new system board that gives the impression of better performance when you use a dual or quad core processor. In my own case I upgraded from a AMD 3700+ (2.4 GHz) which has double the cache memory and a faster clock speed than diagnostics show on this particular multi-core processor. In fairness to these new processors, belated research indicates that you may get a benefit if you run multiple applications although I have not yet seen convincing evidence of this. In summary if you get hooked by the advertised added-up processing power of these new chips as I did, your game or single principle work application will not run faster until new software actually uses the additional (but frequently idle) processing power.

It is running very smoothly and fast. So far I have had no trouble at all. If i need i would buy simialar product again. You may be think the second of this item maybe not reliable but I totally disagree. I just installed it on new motherboard and it running very reliable.