DDR and DDR

[Tahir2]

Guys that remember upgrading their VRAM or having the option to are far too old!!
Now the disturbing thing is that I posed the question so must have had some knowledge of it, hehe.
I deny everything and plead the fifth.

 

[RussSchultz]

Heh. I had a motherboard where you inserted separate DIP chips into for memory expansion.

 

[Nite_Hawk]

Hyp-X: dear god, I had a 8900C and pulled the chips off to put on *my* gravis ultrasound... Did you steal my memories?

Man, when I got my S3 864, and then later ATI mach32, I was in heaven compared to that 8900. 24bit color!

Nite_Hawk

 

[swaaye]

My first 486 had a Trident 8900C ISA. That card is a POS. I remember dropping in a new Diamond Speedstar Pro (Cirrus Logic 5426) and having it be like 2x faster. Sad.

I still have a 8900C lying around in case I mess up my BIOS and need a ISA vid card.

 

[Grall]

Oh, my god, those trident cards were mighty slow! Even their PCI cards were slow as hell, hehe.

I had a Tseng ET6000 in my first PC, that one was really snappy unless you pushed up the resolution and refresh rate near max, then things slowed down noticeably due to all the RAMDAC activity sucking memory b/w away from the blitter. It was a real demon for its time though, 96MHz 128-bit MDRAM, oh those were the days!


*G*

 

[OpenGL guy]

Heh. I had a motherboard where you inserted separate DIP chips into for memory expansion.

Not much different from my Amiga 3000 which took ZIPs.

 

[Hyp-X]

Oh, my god, those trident cards were mighty slow!

Well, it took 2 frames (1/35 sec) to clear the screen in 320x200/256...

My jaw dropped when I saw the first "copper" demo running with full rate (70Hz) on that card.

 

[gokickrocks]

Difference = latency? What? Lower, higher, be specific, people!

gddr actually has higher latency, the memory found on the 9700 pros and ti4600s have a CL of 5

 

[Xmas]

I guess it all depends on whether you measure latency in clock cycles or nanoseconds.

 

[arjan de lumens]

Not necessarily. AFAIK, the best system DDRs run at 200 MHz DDR with CL=2 cycles =10 ns, whereas if the RAM of 9700 Pro runs at CL=5 cycles @ 310 MHz DDR, you get a CL of about 16 ns.