Overclocking DDR3 RAM to 1600 Mhz

[Megasonic988]

I am planning to buy this RAM-

G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL7D-4GBRM - Retail
http://www.newegg.ca/Product/Product.aspx?Item=N82E16820231303

I am going to pair it with an AMD CPU, probably a:

Athlon II x2 240
http://www.memoryexpress.com/Products/PID-MX25424(ME).aspx

1. I am reading reviews and it seems all 1600MHz RAM is actually just 1333 Mhz passed with stable overclocking to 1600 Mhz. Is this true? When I put it in my computer, will it just show up as 1333 Mhz and I have to overclock myself to 1600 Mhz?

2. My processor only supports up to DDR3 1066 Mhz (PC3-8500). Does this mean I will have to stick with a slower RAM, or does this mean my RAM will just show up as 1066 Mhz until I overclock?

3. Is it worth it to get 1600 MHz RAM in the first place? Or is it better to get some 1333/1066 Mhz ram and get better timings?

4. Or is it better to ditch DDR3 altogether and stick with DDR2? I am hoping for future upgradeability though, and I don't want a new AMD CPU to be incompatible with a DDR2 board.

 

[blackjellognomes]

1. Some mobos will downclock RAM to 1333MHz for safety purposes. Clocking it up to 1600MHz wouldn't be considered overclocking.
2. What? As far as I know, an AII 240 will run fine with faster RAM. Bus limitations are based on the mobo.
3. CL7 is pretty tight timings.
4. Get DDR3.

Btw, get the 240 from Newegg. It's cheaper ($57), and Newegg is probably more reliable than that memoryexpress site.
This is kinda unbalanced though. You should spend more on the CPU if you wanna take advantage of the faster RAM.

 

[Megasonic988]

Best answer selected by Megasonic988.