I have 4 gigs of ram. would adding 512 MB add ANY performance value?

I havent seen 256MB sticks in a while, they are quite likely much slower or totally incompatible with your system(probably DDR1), if you already have 4GB adding another 512MB isnt going to make a big difference and could potential hurt performance based on the performance of the 256MB sticks since it will set everything to the fastest shared settings.
 

kimyeang88

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Sep 17, 2010
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256 MB mostly is DDR1 and DDR2 400 MHz. Your 4GB ram is probably 800 MHZ if it is DDR2 or DDR3 1333 MHZ. IF you have DDR3, it won't match the slot of your old RAM 256 MB. However if you have DDR2 4 GB and you put that 256 MB in, it will decrease your RAM performance to 400 MHz.