Essentially they do.
SLI would have to be working perfectly to double the performance of a single GPU.
Quite often it doesn't work that well so you don't see double the performance.
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**GTX 690 NOW AVAILABLE AT OcUK!!**
- Thread starter Gibbo
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Essentially they do.
SLI would have to be working perfectly to double the performance of a single GPU.
Quite often it doesn't work that well so you don't see double the performance.
That wasn't the point he was posting against in the first place though... unless I misinterpreted it.
Edit here it is:
Which is why I was saying that a single GPU card generally clocks better than their dual GPU elder brother.
True but thats just because they lowered the base clock really isn't it?
He was responding to this:
I took the first post to mean that the GTX 690 had twice the performance of a GTX 680.
It obviously doesn't "clock twice a single 680".
I was trying to say why it doesn't have twice the performance.
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There's a good reason that they're shipped with lower clocks than the single GPU equivalents
. Anyway, it's fairly common looking back historically that two single GPU cards overclock better than a dual GPU equivalent. That was my point.
There's a good reason that they're shipped with lower clocks than the single GPU equivalents
Anyway, it's fairly common looking back historically that two single GPU cards overclock better than a dual GPU equivalent. That was my point.
Yeah I would guess that but... theres probably a "good" reason Intel ship their CPU's at 3.5Ghz when on stock volts they easily hit 4.3Ghz xD
If you believe that a 690 will overclock as high as two single 680's then fine, I'll let you believe that
.We're not talking huge differences but enough to point it out.
If you believe that a 690 will overclock as high as two single 680's then fine, I'll let you believe that
We're not talking huge differences but enough to point it out.
I think it could clock close enough that it would be doing better
boom
Why does SLI do better than a single card?
Single card with two GPU's is still SLI...
EDIT: Images below as you obviously still think you know better
As to why I believe it's because the GPU's aren't able to be clocked as high due to a shared power supply on a 690 (1 * 8pin + 8pin) for two GPU's compared to a dedicated power supply per GPU for each 680 card (1 * 6pin + 6pin).
Happy to be corrected on this if I'm wrong or it's more complicated
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I'll wait a year or two and pic it up for 60 quid in MM
Add a zero to that figure more like!
This, 590's still fetch £500ish quite easily.
