Ram question



whats diff between pc 4200 and 4300 ram

heres the board i am buying

http://www.fastekcomputers.co.uk/shop/gigabyte-gavm900m-motherboard-p-1147.html
albeit from amazon!

does the following ram fit this board?

http://www.amazon.co.uk/Corsair-VS1GB533D2-533MHz-non-ECC-unbuffered/dp/B0006ITZES/ref=sr_1_5?ie=UTF8&s=electronics&qid=1196218752&sr=8-5


and if so whats the difference in this


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