CPUs > up to 100 GBP CPUs

Advantages: Incredibly cheap, reliable CPU
Disadvantages: FSB+Cache could be better

...life much easier when the AMD X2 prices come down in the future, if you are planning to upgrade. Although the FSB and cache aren't amazing, it wouldn't really be a cheap processor if they were, so I can't really complain about that. If you're looking for a cheap, reliable CPU. Wether you're on a budget, or want something until the X2 prices come down, a Sempron is a recommended buy. ... Read review

Advantages: Very cheap, extremely low power consuption, can be used with fanless cooler
Disadvantages: Poor performance compared with today multi core processors

Well what can I say, single core processor, I used to have something like this not so long ago, a good processor then but now a new era of processors had arrived, the dual core and quad core processors. Nevertheless the processor has it's own and unique advantages and disadvantages: The good stuff: Still not many multi thread aplications that the processor deals pretty well Magnificent power consumption, only 30-35 watt on full load, and 5-6 watt ...
...fan less cooler for a silent and energy efficient computer So cheap The not so good stuff: Modest performance in single threaded aplications Poor performance in multi threaded aplications Say goodbye to HD movies (although some video cards can decode HD movies, but why risk: ) and future applications Modest over clocking on low cost motherboards, only 300-500 Mhz Conclusion: recommended for silent and energy efficient office computers ... Read review

Advantages: Speed, Value for Money
Disadvantages: Stock Cooler

Being an AMD fan boy may not help with the decision of the upgrade. But for the price of the processor you will not be disappointed. I had a 3000+ 64Bit AMD I found it to be a pretty quick with music and videos. However I noticed problems with speed when loading games and video editing. Which is why I decided to upgrade to the AMD 64 Athlon X2 2600+. The 3600+ clocks at 2.0 GHz each, this allows the user to assign programmes with either processor ...
...to a certain processor. AMD have also brought out two drivers which can fix problems with games which are not developed to support dual cores. One of the games called soldiers does not support two processors and is knows to BSOD (Blue Screen of death) and also crashes the system. Another update is to allow programmes to switch between the processors or use both if that process is under stress. The new games on the market are now being developed ... 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