The difference between DDR1 ram and DDR2 ram, is the advancement in technology. When you upgrade to DDR2, you are doubling the amount of flow information that can take place.
The type of memory used by the graphics card. DDR1 is slower, DDR2 is faster. They both plug into the same slot in your computer.
DDR. Technically, there is no "DDR1", only "DDR" and DDR2".
There are both the same thing, ddr2 ram, is faster that ddr1 ram but ddr3 ram is more modern and faster
DDR2 RAM is slightly smaller and has square chips. DDR1 RAM has rectangular chips.
In DDR1 the Chip is in Rectangle shape and DDR2 the Chip Shape is in Square and DDR2 is Chip smaller than DDR1.DDR1 is centre cutting 7.5cm.DDR2 is centre cutting 7cm.DDR1 pin 92. DD2 pin 122.DDR1 pin is larger than DDR2.
DDR has a 184-pin DIMM interface and DDR2 has 240. DDR2 runs cooler and has generally slower timings but is a lot faster than DDR in the end. DDR2 is capable of holding more ram on one DIMM.
There are 2 easy ways. No#1- Downlaod a 'system analysis' tool (e.g. CPU-Z) run the progamme and check its window. http://www.cpuid.com/cpuz.php No#2- Open the case, and look at the ram slots. DDR1 has 184 pins, DDR2 has 240 pins. The 'notch' in the ram stick is also in different places on DDR1 vs DDR2. After you have look at a few ram sticks, you can soon pick the difference between DDR1 amd DDR2, but in the beginning it is no so easy. There is quite often a sticker on the side of the ram telling you what type/speed it is to make things easier, but it can be hard to see inside the case. DDR1 also ranges from DDR-200 (PC-1600) to DDR-433 (PC-3500) and DDR2 ranges from DDR2-400 (PC2-3200) to over DDR2-1066 (PC2-8600)
No
ddr1 and ddr2
Yes. DDR2 memory has double the transfer rate of DDR memory.
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.