GDDR AND DDR
0
Fruid
Lurker of Threads
GDDR is used more for high-end graphics cards since some cards need higher RAM than what the normal motherboards come with.
edit: Found a more comprehensive explanation - google is your friend.
http://webcache.googleusercontent.com/search?q=cache:ADbqencljg4J:www.hardwaresecrets.com/article/168+gddr+and+ddr&cd=1&hl=en&ct=clnk&gl=us&client=firefox-a&source=www.google.com
edit: Found a more comprehensive explanation - google is your friend.
http://webcache.googleusercontent.com/search?q=cache:ADbqencljg4J:www.hardwaresecrets.com/article/168+gddr+and+ddr&cd=1&hl=en&ct=clnk&gl=us&client=firefox-a&source=www.google.com
0
Flaser
OCD Hentai Collector
Apples and oranges.
Graphic RAM (GDDRx) is optimized for maximum transfer rate, and tends to have pretty bad latency figures, as they don't need to be that responsive as usually they're just pumping data to the GPU as fast as possible.
Normal RAM (DDRx) on the other hand has to support multiple programs running in the memory where data is constantly shuffled, loaded, moved to swap, etc. so latency is a lot more important.
Read more about latency here:
http://www.hardwaresecrets.com/article/Everything-You-Need-To-Know-About-DDR-DDR2-and-DDR3-Memories/167/4
Graphic RAM (GDDRx) is optimized for maximum transfer rate, and tends to have pretty bad latency figures, as they don't need to be that responsive as usually they're just pumping data to the GPU as fast as possible.
Normal RAM (DDRx) on the other hand has to support multiple programs running in the memory where data is constantly shuffled, loaded, moved to swap, etc. so latency is a lot more important.
Read more about latency here:
http://www.hardwaresecrets.com/article/Everything-You-Need-To-Know-About-DDR-DDR2-and-DDR3-Memories/167/4
