DDR, GDDR2, GDDR3 what does it mean

Warmonger41 · 06-04-2006, 05:18 PM

I was just looking at vid cards at newegg and had wondered what the difference between DDR, GDDR2, GDDR3 were. Is it just a matter of compatibility or a matter of different speeds? help me out plz

Willz · 06-04-2006, 05:08 PM

well, DDR stands for double data range, i am not sure of the differences between the ram, well i dont think so anyway, but it seems like GDDR3 ram is capable of much much higher speeds than DDR ram same with GDDR 2 ram,, as you see the high end graphics cards with memory speeds of over 600mhz/1.2ghz, also DDR ram is quite bigger than GDDR ram.
also GDDR ram is just for graphics cards.

Addis · 06-04-2006, 06:08 PM

DDR is the standard memory used in most PCs and some graphics cards.

In a graphics card, the best type is GDDR3, GDDR2 and then DDR. GDDR is memory suited and optimized for graphics/matrix calculations. They also tend to run at higher speeds.

megamaced · 06-04-2006, 07:27 PM

Quote:

Originally Posted by Willz

well, DDR stands for double data range,

Double Date Rate

Exfoliate · 06-04-2006, 07:41 PM

The G in GDDR3 as far as I can tell just denotes 'graphics' as you can't buy GDDR3 ram for your PC. GDDR4 is on it's way and it's basically just another league of good as you won't notice much difference speedwise between a card with GDDR2 and GDDR3 if they're at the same clockspeeds. The main difference is GDDR3 is capable of higher speeds, which is always a plus.

Warmonger41 · 07-04-2006, 12:27 AM

Well i guess my question is: Do I have to have a certain RAM type in order to use a vid card with GDDR3? and if so what is it?

Addis · 07-04-2006, 07:29 AM

No the video card RAM is independent of the system RAM, so you can buy any type you want. As long as you buy an AGP card for an AGP motherboard and a PCI-E for a PCI-E motherboard.

Exfoliate · 07-04-2006, 11:03 AM

Just as a point of reference AGP cards usually don't use GDDR3 ram just as it's a new technology that most AGP cards didn't have time to adopt.

Matt555 · 07-04-2006, 11:59 AM

They do actually it just depends on how old the card is, I've got a 6600GT and it uses GDDR3 RAM - Got it running at 1200Mhz (stock speed = 1000MHZ)

Exfoliate · 07-04-2006, 03:42 PM

I didn't say they didn't, just most cards that support it fall into the PCIe category. But your totally right, 6600GT's, 6800GS's, and 7800GS's all support DDR3.

06-04-2006, 05:18 PM	#1 (permalink) Top
Warmonger41 Big Geek Join Date: Feb 2006 Age: 18 Male Posts: 247 Times Helpful: 3 My Mood: Cheerful Status: Offline My Computer	DDR, GDDR2, GDDR3 what does it mean I was just looking at vid cards at newegg and had wondered what the difference between DDR, GDDR2, GDDR3 were. Is it just a matter of compatibility or a matter of different speeds? help me out plz

06-04-2006, 05:08 PM	#2 (permalink) Top
Willz MiCrO$oFt $uK$ :D Join Date: Jun 2005 Age: 19 Male Posts: 4,234 Times Helpful: 150 My Mood: Lurking Status: Offline My Computer	well, DDR stands for double data range, i am not sure of the differences between the ram, well i dont think so anyway, but it seems like GDDR3 ram is capable of much much higher speeds than DDR ram same with GDDR 2 ram,, as you see the high end graphics cards with memory speeds of over 600mhz/1.2ghz, also DDR ram is quite bigger than GDDR ram. also GDDR ram is just for graphics cards. __________________

06-04-2006, 06:08 PM	#3 (permalink) Top
Addis The King Join Date: Jan 2004 Age: 18 Male Posts: 5,255 Times Helpful: 403 My Mood: Drunk Status: Offline My Computer	DDR is the standard memory used in most PCs and some graphics cards. In a graphics card, the best type is GDDR3, GDDR2 and then DDR. GDDR is memory suited and optimized for graphics/matrix calculations. They also tend to run at higher speeds. __________________ Never trust a program you don't have the source code for. My website \| Powerful Desktop Linux \| Linux for human beings \| Linux for power users \| Linux for ricers

06-04-2006, 07:41 PM	#5 (permalink) Top
Exfoliate Captain Dial-up Join Date: Jan 2005 Age: 19 Male Posts: 4,258 Times Helpful: 223 Status: Offline My Computer	The G in GDDR3 as far as I can tell just denotes 'graphics' as you can't buy GDDR3 ram for your PC. GDDR4 is on it's way and it's basically just another league of good as you won't notice much difference speedwise between a card with GDDR2 and GDDR3 if they're at the same clockspeeds. The main difference is GDDR3 is capable of higher speeds, which is always a plus. __________________

07-04-2006, 07:29 AM	#7 (permalink) Top
Addis The King Join Date: Jan 2004 Age: 18 Male Posts: 5,255 Times Helpful: 403 My Mood: Drunk Status: Offline My Computer	No the video card RAM is independent of the system RAM, so you can buy any type you want. As long as you buy an AGP card for an AGP motherboard and a PCI-E for a PCI-E motherboard. __________________ Never trust a program you don't have the source code for. My website \| Powerful Desktop Linux \| Linux for human beings \| Linux for power users \| Linux for ricers

07-04-2006, 12:27 AM	#6 (permalink) Top
Warmonger41 Big Geek Join Date: Feb 2006 Age: 18 Male Posts: 247 Times Helpful: 3 My Mood: Cheerful Status: Offline My Computer	Well i guess my question is: Do I have to have a certain RAM type in order to use a vid card with GDDR3? and if so what is it?

07-04-2006, 11:03 AM	#8 (permalink) Top
Exfoliate Captain Dial-up Join Date: Jan 2005 Age: 19 Male Posts: 4,258 Times Helpful: 223 Status: Offline My Computer	Just as a point of reference AGP cards usually don't use GDDR3 ram just as it's a new technology that most AGP cards didn't have time to adopt. __________________

07-04-2006, 11:59 AM	#9 (permalink) Top
Matt555 iMod Join Date: May 2005 Age: 21 Male Posts: 3,844 Times Helpful: 238 My Mood: Happy Status: Offline My Computer	They do actually it just depends on how old the card is, I've got a 6600GT and it uses GDDR3 RAM - Got it running at 1200Mhz (stock speed = 1000MHZ) __________________

07-04-2006, 03:42 PM	#10 (permalink) Top
Exfoliate Captain Dial-up Join Date: Jan 2005 Age: 19 Male Posts: 4,258 Times Helpful: 223 Status: Offline My Computer	I didn't say they didn't, just most cards that support it fall into the PCIe category. But your totally right, 6600GT's, 6800GS's, and 7800GS's all support DDR3. __________________

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