Assuming you're talking about computer memory and not Dance Dance Revolution, the 2 simply means the generation of RAM. There is also ddr1 ram and ddr3 ram, with ddr1 rarely used and ddr3 used only in high-end computers. More important than the type of RAM is the amount of it. That said, if you own a high end gaming computer and are into upgrades, have someone check compatibility with ddr3 ram.
A type of computer memory. http://en.wikipedia.org/wiki/DDR2
well...Depending on what you mean by powerful, that mean a lot of different things. I will assume you mean faster in this case. DDR1 and DDR2 are very similar when it comes down to it, but DDR2 transfers data at twice the speed compared to DDR1, assuming the clock speeds are the same. DDR2 has higher clock speeds most of the time, and therefore will be even faster than that.
No, it depends on the computer. DDR2 RAM is only for newer computers (Core 2, &tc.)
It is a form, speed and type of memory.
Yes, you can use DDR2 RAM with an Intel Core 2 Quad processor, provided that the motherboard supports DDR2 memory. Most Intel Core 2 Quad processors are compatible with motherboards that have DDR2 slots, so ensure that your motherboard specifications align with the RAM type. However, it's essential to check the specific motherboard documentation for compatible RAM speeds and configurations.
You cannot use DDR2-5300 RAM instead of DDR2-4200 RAM in a system that specifically requires DDR2-4200. While both are DDR2 types, they operate at different speeds, with DDR2-5300 having a higher bandwidth. However, if the motherboard supports DDR2-5300, the faster RAM will downclock to match the lower speed of DDR2-4200. Always check your motherboard specifications for compatibility.
A type of computer memory. http://en.wikipedia.org/wiki/DDR2
There are 240 pins on DDR2 and DDR3.
No, the slots for DDR2 RAM is different from the DDR RAM. You cannot use DDR RAM with DDR2 slot.
DDR. Technically, there is no "DDR1", only "DDR" and DDR2".
DDR2 PC2-4200,DDR2 PC2-5300,DDR2 PC2-6400 with a maximum of 1GB per slot (equals 4GB max total system memory)
Memory Type: DDR2 PC2-6400, DDR2 PC2-8500, DDR2 (non-ECC)Maximum Memory: 8GBSlots: 4Each memory slot can hold DDR2 PC2-6400, DDR2 PC2-8500 with a maximum of 2GB per slot.