Final Thoughts

If you’ve read our GPU reviews for any length of time then you’re probably familiar with our editorial stance on multi-GPU configurations: multi-GPU is nice to have, but only after you’ve exhausted single-GPU performance. Normally this is an easily defensible position, as dual-GPU cards are priced well above single-GPU cards and multi-GPU otherwise involves the hassle of dealing with multiple video cards.

EVGA’s GeForce GTX 560 Ti 2Win makes that a much harder position to defend. Technically speaking it’s pricier than a GTX 580, but not significantly so; it’s a GTX 580 competitor instead of something that comes after the GTX 580. Furthermore as we already know from the regular GTX 560 Ti SLI, a pair of GTX 560 Tis can beat a single GTX 580 by 30% if not more under the right circumstances. On a pure performance per dollar basis the 2Win is considerably faster than the GTX 580, and that’s a fact that’s very hard to argue with.

Ultimately the existence of the 2Win is a major vote of confidence in SLI by EVGA. If you believe as they do – that NVIDIA will continue to quickly add SLI support to games, that SLI scaling will always be strong, and that multi-GPU timing issues are easily overcome – then the 2Win makes the GeForce GTX 580 redundant at current pricing. It’s that simple.

On the other hand if you don’t share EVGA’s confidence in SLI, then very little has changed. If you believe that new games will have teething issues with SLI, that microstutter will continue to exist, and that not every game will scale well with SLI, then the 2Win is a poor choice in light of the more consistent performance of the GTX 580. Certainly the performance of the 2Win is phenomenal when SLI is working, but if SLI falters that means the performance of the 2Win is reduced to that of a $220 GTX 560 Ti. It’s not necessarily a deal breaker, but it’s a real concern that must be evaluated when buying any dual-GPU card, including the 2Win. We’re going to continue to be conservative and recommend the consistency of a single-GPU card over the performance of a dual-GPU card, but for the individual buyer the 2Win’s performance makes a very good argument to throw caution into the wind.

Moving beyond the scope of SLI it’s clear that the 2Win is a solid product. EVGA’s use of an open air cooler is definitely an interesting choice. It’s not the only card using this style of a cooler – a number of overclocking focused vendor custom cards do so – but it’s more surprising to see it on a multi-GPU card. The end result is that given a suitable case this cooler allows the 2Win to dissipate as much heat as it does for relatively little noise. It’s subjectively noisier than a GTX 580, but just barely.

Wrapping things up, the only aspect I feel that EVGA has left underdeveloped on an otherwise very strong card is VRAM. As a result of SLI 2Win is a $520 card with 1GB of effective VRAM. We’ve already seen 1GB of VRAM pose limitations in a couple of our tests, and going forward it’s only going to get worse.  Case in point: Battlefield 3, which we’re currently looking at. In a technical presentation DICE has stated that the combined memory consumption at 1920x1080 for the gbuffer, Z-buffer, and MSAA resolve data is 158MB; and this is before other buffers let alone textures. As a $200 card meant for 1920 and lower resolution, 1GB of VRAM makes sense for the GTX 560 Ti. But as a $500 dual-GPU card meant for higher performance, higher quality, and higher resolutions, 1GB of effective VRAM is the biggest bottleneck going forward for the 2Win. Realistically EVGA is in a hard place since using higher density GDDR5 would drive up the price of the card and make it even more expensive than the GTX 580, but at the end of the day I think the 2Win needs 2GB of effective VRAM to spread its wings through 2012.

DIRT 2, Mass Effect 2, Wolfenstein, & Compute Performance
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  • Tchamber - Monday, November 7, 2011 - link

    I never understood why they advertise 2GB, but the review says 1GB of useable memory. Can some one explain that to me?
  • Ryan Smith - Monday, November 7, 2011 - link

    With current multi-GPU technology (SLI and Crossfire), each GPU has its own copy of the working set of data and assets. Furthermore they can only work from their local VRAM, and they cannot (practically) work from the other GPU's VRAM.

    As a result you must duplicate the working set and assets across each GPU, which means you get half the effective VRAM.

    At the end of the day boardmakers can advertise having 2GB because it does in fact physically have 2GB, but logically it only has 1GB to work with.
  • Tchamber - Friday, November 11, 2011 - link

    Thanks for clearing that up Ryan. So in any multil-gpu setup, the vram does not increase, unless the card itself has more of its own. Interesting limitation, so only compute power and bandwidth increase?
  • AnnonymousCoward - Monday, November 7, 2011 - link

    It seems like it might make sense for nvidia to base their architecture on having 4, 8, or 16 GPU dies on every board. This would improve yield across the entire low/medium/high end due to smaller die sizes, and it would give a huge boost to the high end (assuming power limits are figured out). In today's age of supercomputers having 4000 chips per rack, it does not seem optimal to put just 1 or 2 per video card PCB.
  • Sabresiberian - Tuesday, November 8, 2011 - link

    Great job, as usual; I have to agree with the conclusions made under "Final Thoughts". The only reason I'd go this route is if I needed the connectivity in terms of monitors and only had a single PCIe x16 slot on my mainboard. That being said, a 30% performance increase in your particular favorite game is nothing to ignore.

    One of the things I've been hoping is that EVGA would send Anandtech or Tomshardware (preferably both) a Classified card so one of these sites could run thorough overclocking tests on it. I highly doubt that the Classified could make up the 30% difference on air, but how much better than stock it can reach will be good to know before I buy.

    (It would also be interesting to know when AMD is going to release their next-gen GPU and whether or not it's going to be worth waiting a month or so for, but their recent CPU release puts them in the "I'm not holding my breath" category.)

    ;)
  • Wakanabi - Monday, February 6, 2012 - link

    I went with this card and I'll tell you why

    TEMPERATURE!!!

    I had two 560Ti's when I first built my pc, and having the sli bridge and the cards close together on a board, one card would be up at 65 to 70celcius under full load, and the other would be at 85 to 92!

    Anytime you have multiple graphics cards, the fans from the top card are pulling hot air directly from the other card's pcb backside.

    I had sold one of my 560s a while back for full price ($250) so instead of buy another one now, I sold the other for $200 and bought the 2Win. Now I only get up to 78celcius total. And once I change my case next week to a higher air flow case it will be even better.

    This is the best card I've ever had, better than two 6870s, a single gtx580 or even the 6990 I was using for mining. I have mine overclocked to 900Mhz and get another 10-12% increase in performance. Unbeatable as far as single cards go, especially considering the 6990 is $700 and the 590 is around that too

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