Old 04-13-2017, 07:25 AM   #1
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Default South Bridge Bottlenecks

So as far as I understand, a typical South Bridge has a bottleneck of 4000 MB/s.

I was thinking that rather than have lots of RAM (I do sample libraries) I could use 3 Samsung 960s, which have 3500 MB/s read, however 2 of them reading at once will already saturate the SouthBridge, so... maybe I'll just get 1 plus a regular SSD.

However... is 4000 MB/s too slow? I mean, if I'm running an orchestral VSTi template [I know I'll get refered to VI control, but I feel Reaper folk have better hardware knowledge, and are more willing to think outside the box. Also I just like you ] with 50 or 100 VSTi... normally I'd need 64gb of ram...

But do I need to match RAM speed? If I have minimal RAM buffers (32gb of RAM), plus fast SSD read times (4000 MB/s) can I get away with it? Or do I really need 64gb (or 128 gb as many pro composers are using).
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Old 04-13-2017, 07:41 AM   #2
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I'd be impressed if you were able to get 7000 MB/s simultaneous.
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Old 04-13-2017, 08:35 AM   #3
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Quote:
Originally Posted by karbomusic View Post
I'd be impressed if you were able to get 7000 MB/s simultaneous.
Is 7000 MB/s the bottleneck? I guess it depends on chipset?

Are you telling me not to worry about it and buy 3 960s?
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Old 04-13-2017, 08:44 AM   #4
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Originally Posted by Mr. PC View Post
Is 7000 MB/s the bottleneck? I guess it depends on chipset?

Are you telling me not to worry about it and buy 3 960s?
I don't know actually, it was really a comment that real world almost never matches advertised. That doesn't mean it wouldn't still be smokin' fast though.
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Old 04-14-2017, 06:47 AM   #5
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Right, but what I need to know is, will 3 960s and a regular SSD plus 32gb of ram give me similar performance to 128gb of ram and 1 SSD (will I be able to load as many Kontakt VSTi).

Another way of looking at it, will the 960s read performance be bottlenecked by this motherboard?

http://asrock.pc.cdn.bitgravity.com/...-STX%20MXM.pdf
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Old 04-14-2017, 08:09 AM   #6
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in the meantime, while writing the question, you could have already waited for 100 vsti to load at a lower disk speed
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Old 04-14-2017, 01:51 PM   #7
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Quote:
Originally Posted by MrBongo View Post
in the meantime, while writing the question, you could have already waited for 100 vsti to load at a lower disk speed
Load into what? I don't have enough RAM to load that many instances. :P
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