CPUs > From 1.5 GHz to 2.0 GHz CPUs > LGA771 Socket

Advantages: Cheap upgrade with great cache memory
Disadvantages: not the fastest or best, most Core 2's are much better

This is an okay machine that fails to ignite or excite you with its performance. I am still amazed that a quad-core can be only 1.86 GHz in memory. I mean so many good Core 2 Duos pack over 2 Gigs its a wonder you get this minnow. The E5320 has good bus speed of 1066 MHz and large cache memory of 8mb, performing well when doing work-related activities. However if you are after an entertainment machine to watch movies, play games or download stuff ... Read review

Advantages: Good clock speed, good video decoding and overall reliabilty
Disadvantages: Only 2 MB cache

The Core 2 Duo e6400 has many good features: It uses a 1066 MHZ FSB (front side bus) for a fast link on the motherboard. It 2 cores running at 2.13 GHZ The Processor is very EASY to overclock; just be careful. It is energy effecient and runs cool, unless you over clock Not as good features: 2 MB cache low compared to others in the range I found this processor to be excellent; it was extremely fast. With this processor there is no worry of ... Read review

Advantages: fast
Disadvantages: hard to think of one

This intel dual core processor with 2.4Ghz speed (total speed of 4.8Ghz) with a 2MB Cache can handle an awful lot of demanding programs runnning at once and for the amazingly low price its a very good processor. This processor is also compatable with 64 bit computing. It has an LGA775 Socket which is compatable with most motherboards (up to you to check these things) if you are looking to upgrade or build your own pc. If you are looking to buy a ... Read review

Advantages: Dual-core performance for true multi-tasking
Disadvantages: Price a little bit more, but makes sense.

...in today's mainstream notebook PCs AMD Athlon 64 X2 6400+ / 3.2 GHz processor has given me a sigh of relief. So what's it bringing with itself? AMD64 technology brings your notebook PC to life with dual-core performance, superior graphics, and wireless technologies from AMD's technology partners. It's everything you need for an enhanced Windows Vista™* experience you can take with you anywhere and coming with a price that makes sense. # Key features ...
...and wireless capabilities from AMD technology partners ~AMD PowerNow!™ technology for performance on demand and extended system battery life ~Enhanced Virus Protection** (EVP) helps protect against certain viruses, worms, and other malicious attacks ~HyperTransport™ technology boosts overall system agility so applications are more responsive and deliver incredible performance # Compatibility wise: AMD Athlon 64 X2 dual-core processors for notebook ... Read review

Advantages: Very fast, cheap
Disadvantages: need to have IT expereince

This intel dual core processor with 2.33Ghz speed (total speed of 4.6Ghz) with a 4MB Cache can handle an awful lot of demanding programs runnning at once, obviously it has its limits, but for the price its a very good processor. This processor is also compatable with 64 bit computing. It has an LGA775 Socket which is compatable with most of the new motherboards if you are looking to upgrade or build your own pc. If you are looking to buy a processor ... Read review