Welcome, Guest. Please Login 3dfx Archive
 
 
  HomeHelpSearchLogin  
 
  3dfx Archive › 3dfx Section › Tech Talk › sgram
(Moderators: FalconFly, gdonovan, NitroX infinity)
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1
Send Topic Print
sgram (Read 136 times)
VDX
Ex Member
sgram
06.06.04 at 00:39:33  
Hello, i have a v3 3000 pci card with the sgram, i have a couple question's

1) whats the difference between the sgram and the sdram as far as performance if any

2) why did the use different kinds of ram?

ty
Back to top
 
 
IP Logged
 
FalconFly
YaBB Administrator
*****
Offline


3dfx Archivist

Posts: 2445
5335N 00745E
Gender: male
Re: sgram
Reply #1 - 06.06.04 at 09:13:50  
I think the SG-RAM (at best) offered better timings, and might be a better Overclocker for those interested.

But performance-wise, I've never heard of it being a real advantage at their stock speeds.

I have no Idea why they used SG-RAM, but the latest V3 Board's PCB layouts look very clean and orderly compared to the earlier SD-RAM layouts. I can only speculate that they could build it at lower cost (after all, other Cards became a serious competition versus the Voodoo3 series, with the V4 and V5 being delayed.)

Maybe it was a way of allowing 3dfx to continue making them profitable ?
Back to top
 
WWW  
IP Logged
 
gdonovan
YaBB Administrator
*****
Offline


Infernal Collector

Posts: 2361
Re: sgram
Reply #2 - 06.06.04 at 13:52:12  
Quote:
I think the SG-RAM (at best) offered better timings, and might be a better Overclocker for those interested.


Had better timing but was less tolerent of being operated outside rated spec. Overclocking with SGRAM usally is problematic. Testing I have done shows most of the time you can overclock only a few mhz over the rams rated spec. (at least on the two cards I was testing)

SDRAM on the other hand if you got a good batch would go way over it's rated spec- I have a V-2000 here with 6ms ram and it will clock to 195 mhz.

Cost was one reason for the SGRAM, the other reason was to do with the memory interface to the V3 and 8 meg cards.

Gary
Back to top
« Last Edit: 06.06.04 at 13:54:02 by gdonovan »  
Rampage is alive!
 
IP Logged
 
Page Index Toggle Pages: 1
Send Topic Print
‹ Previous Topic | Next Topic ›
  « Home ‹ Board Top of this page

3dfx Archive » Powered by YaBB 2.4!
YaBB © 2000-2009. All Rights Reserved.

Valid RSS Valid XHTML Valid CSS Powered by Perl Source Forge