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EVGA GTX 570 1.2GB vs 2.5GB - Page 4

post #31 of 43
I was ready to jump on three 2.5gb but I changed my mind after researching what little info is out there. Most of the info on this card is available through the evga forums. Since they still use the same 4 phase vrm design as the reference and HD version (non-reference) and the higher vram power requirements, they don't oc that good. EVGA decided to add a better vrm design to the 570 Classified and not the 2.5gb which is a shame.

Btw, the EVGA 2.5gb is the same design as the 1.25gb HD version (non-reference), so the proposed ek full cover block for the HD model will fit the 2.5gb.

You really need high vram for triple monitor gaming tbh and yet you'll probably need at least two cards to achieve high settings on the most demanding games. I would recommend the EVGA or Zotac 580 with 3gb as they use the same pcb design as their reference counterparts only using double density vram chips. Hence why its double the vram. This is the same design for the 2.5gb as the 570 1.25gb HD non-reference. My biggest reserve to not jumping on the 580s 3gb is the high cost .

Alternatively, if you can put up with the so-so drivers, Amd's 6950s with 2gbs can perform quite well with high resolution.

Here's hoping Nvidia will launch the 6xx series with higher vram. Maybe:

GTX 690 6gbb
GTX 680 3gb
GTX 670 2.5gb
GTX 660 2gb
post #32 of 43
Don't hold your breath for a 6GB variant. The GTX 690 will be 2GB by all accounts.
post #33 of 43
Quote:
Originally Posted by vikingsteve View Post
Don't hold your breath for a 6GB variant. The GTX 690 will be 2GB by all accounts.
two 680 cores w/ 3gb each on one pcb = 690 6gb
post #34 of 43
Thread Starter 
I was REALLY considering a GTX 580, so the Classified version of the GTX 570 has a better VRM design which would mean better overclocking?

I don't mind taking the jump to the 580 but I'm just so skeptical.
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post #35 of 43
Quote:
Originally Posted by Necrodox View Post
I was REALLY considering a GTX 580, so the Classified version of the GTX 570 has a better VRM design which would mean better overclocking?

I don't mind taking the jump to the 580 but I'm just so skeptical.
Yes better overclocking and less chance of failing due to higher voltage. Currently I think there are two 570's that comes with the 6+1 VRM phase design, the Classified and TFIII.
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post #36 of 43
Thread Starter 
Alright so I guess the GTX580 would be a solid choice, given all the resistance against more VRAM I'll stick with the 1.5GB and scratch the 3GB.

Sounds good?
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post #37 of 43
Quote:
Originally Posted by Necrodox View Post
Alright so I guess the GTX580 would be a solid choice, given all the resistance against more VRAM I'll stick with the 1.5GB and scratch the 3GB.

Sounds good?
For your resolution needs, that's perfect
post #38 of 43
Quote:
Originally Posted by wermad View Post
two 680 cores w/ 3gb each on one pcb = 690 6gb
Pipe dream. And that's still only 3GB, the memory doesn't add up just because there are two cores on one card. That's a marketing ploy.
post #39 of 43
Quote:
Originally Posted by vikingsteve View Post
Pipe dream. And that's still only 3GB, the memory doesn't add up just because there are two cores on one card. That's a marketing ploy.
No, it doesn't 'add up', and I think 99% of OCN'ers understand how memory works in SLI (or multi-GPU single card) by now ... but it's still 3GB per core. Which is plenty of vram unless Kepler turns out to be ridiculously more powerful than Fermi. Which I personally doubt it will be.
    
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post #40 of 43
Quote:
Originally Posted by vikingsteve View Post
Pipe dream. And that's still only 3GB, the memory doesn't add up just because there are two cores on one card. That's a marketing ploy.
Quote:
Originally Posted by brettjv View Post
No, it doesn't 'add up', and I think 99% of OCN'ers understand how memory works in SLI (or multi-GPU single card) by now ... but it's still 3GB per core. Which is plenty of vram unless Kepler turns out to be ridiculously more powerful than Fermi. Which I personally doubt it will be.
This.

If we had it your way, the 6990 would be labeled as 2gb, because that is the effective vram. But, its marketed with its total vram at 4gb, as is the 590 at 3gb. My speculation is that Nvidia has learned a good lesson and will offer more vram and not let the card makers do it for them. Nvidia has always had an unorthodox vram count (ie 1.25gb, 1.5gb, 1.7gb, etc.). So it would make sense to go for a 6gb dual gpu setup (3gb per core again) since EVGA, Zotac, and Palit already sported 3gb 580s using double capacity ram chips.
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