DDR3 SDRAM

From what I vaguely understand, DDR3 technology basically allows twice as much information to be read during a single access round to the memory, thus technically providing twice as much bandwidth, compared with DDR2.

Technology aside, these are the objects of questions:
- Current: 2x 1024 MBs PC2-6400
- Target: 2x 2048 MBs PC3-10600

Questions are:
1/ Will the DDR3 set function 1.66x times as fast as my current set (if/when the memory load is high enough), given their theoretical maximums (1333 MT/s and 800 MT/s respectively), or am I missing something?

2/ Will DDR3 sticks work on a non-DDR3-supportive mainboard/system? Or will I not even be able to plug the sticks into the memory slots?

3/ Regarding buses, which ones should I attempt to keep in synchronicity? Memory bus + FSB? Anything else, AGP, PCI? And how do I do this?
It seems here that FSB's frequency is a range instead of a fixed number. Should I aim to synchronize the maximum values (333 MHz FSB + PC3-10600 memory)?
Would such information be listed in the CPU's specifications? Such as what I'm suspecting here.

http://en.wikipedia.org/wiki/DDR3_SDRAM should answer your 2nd question.

ref for Q1: Intel P35 Chipset: DDR2 Versus DDR3 Memory

http://en.wikipedia.org/wiki/DDR3_SDRAM should answer your 2nd question.

I suppose as long as it's 240 pins, it doesn't matter where that hole is.

EDIT: So basically, while the DDR3 reads/writes twice as much as the DDR2 per access to the memory, the time it takes to complete that access is also significantly higher (almost double the timings of DDR2), resulting in a similar throughput performance?

I thought DDR3 was already the standard atm, and DDR4 is what theyre working on now (system memory seems to be 1-2 generations behind video memory).


As for DDR3 working in a DDR2 system, I would say no, based on the DDR2 not working in DDR1 systems. Also, the chipsets need to work with the DDR3 as well.

You really have to check your MB manual to see if it supports both types of memory. Apparently some do e.g. MSI Unveils DDR2+DDR3 Combo Motherboard.