Easy (I think) SLI Question
Posted: Wed May 16, 2012 5:36 am
Can I buy 2 relatively inexpensive cards and SLI them to get more memory? The 550Ti (1GB GDDR) is on sale today at newegg $89.99 after $30MIR. There are others too in the $100 range - times 2 = ~$200. To step up to 2GB GDDR (from the 1.2 I have now, GTX470) might be worth it to me.
Does GDDR scale up that way? The more memory the better for apps like (esp) Premiere Pro - 2 GB is a pretty nice bump from 1.2G.
Do I need to concern myself with the memory interface? The 550 Ti has a 192-bit interface, the card I'm running now, the GTX 470 has a 320-bit. So I'll increase the memory cache but the access be slower? I wonder if that trade-off is worth it.
Well thanks for reading and for sharing any thoughts you might have - I appreciate it!
EDIT: I think maybe I better worry about the number of CUDA cores instead? That's where all the work is done right? I didn't realize the difference between the 470 and the 550Ti was so huge - 448 to 192. Those 192 are newer cores so maybe the technology is improved but that's a lot less. Maybe I better wait till the 600-series is out in more price ranges. Thanks!
Does GDDR scale up that way? The more memory the better for apps like (esp) Premiere Pro - 2 GB is a pretty nice bump from 1.2G.
Do I need to concern myself with the memory interface? The 550 Ti has a 192-bit interface, the card I'm running now, the GTX 470 has a 320-bit. So I'll increase the memory cache but the access be slower? I wonder if that trade-off is worth it.
Well thanks for reading and for sharing any thoughts you might have - I appreciate it!
EDIT: I think maybe I better worry about the number of CUDA cores instead? That's where all the work is done right? I didn't realize the difference between the 470 and the 550Ti was so huge - 448 to 192. Those 192 are newer cores so maybe the technology is improved but that's a lot less. Maybe I better wait till the 600-series is out in more price ranges. Thanks!