DDR. Technically, there is no "DDR1", only "DDR" and DDR2".
http://dhivacpt.blogspot.com/2007/10/difference-between-ddr1-and-ddr2.html
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.
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.
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.
DDR1 RAM typically has 184 pins and a notch located closer to the center. DDR2 RAM has 240 pins and a notch positioned more towards one side. You can also look at the labeling on the RAM module itself to identify whether it is DDR1 or DDR2.
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.
DDR1 operates at 2.5 volts, while DDR2 uses 1.8 volts. DDR3 further reduces the voltage to 1.5 volts, with some variants supporting a lower voltage of 1.35 volts. Each generation of DDR memory has been designed to consume less power while improving performance.