DDR3 does sound better and faster, because it's new.
Like most new computer products they currently cost lots more than the previous generation, for example when SATAII came out it was much more expensive than IDE and SATAI.
DDR3 is faster than DDR2. It runs at up to 2000MHz, compared to DDR2 at 1066MHz.
4GB of DDR3 2000Mhz dual channel RAM could set you back up to £300
4GB of DDR2 1066MHz dual channel RAM will only cost £45 (OCz Gold Edition)
The speeds of the RAM can only be utilized fully with a very fast computer. If you are spending over £1000 on a computer it could be worth getting DDR3 because the chances are the processor is a fast quad core.
Any less and lots of DDR2 will see much better performance advantages. 8GB of DDR2 800MHz costs a little more than 2GB of DDR3 1600MHz.
Twice the speed, a quarter of the size. Size will see much more benefit over speed.
Also, a DDR3 motherboard costs a lot more than a DDR2 one and there are still some compatability problems.
For the future, DDR3 will be good as it comes down in price but for now, unless you have a high budget, go with DDR2.
For upgrades, DDR2 RAM will not stop being sold for quite a while (you can still find DDR RAM on the market even though no new computers are sold with it)
All in all, I recommend 4GB of DDR2 RAM at 800MHz. It is the best value at the moment for a computer costing anything up to £700.
If you want to buy a DDR2 or DDR3 computer, contact me and I'll give you a quote. My favourite DDR2 4GB computer is £390 incl. VAT and Delivery and has AMD 6000+ Dual Core, Powercolor 4830 512mb PCI-E graphics, 250gb hard drive, 22x DVD-RW, 8 Channel Audio and a lovely looking red LED case with a side window.
DDR2 vs DDR3 RAM- Price and Performance
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15 February 2009
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