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My thoughts on GTX 700 Series

post #1 of 44
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So first of all I am relatively new to this seen, so perhaps some of what I am going to say may be completely wrong. I am just looking at this from a logical perspective.

I currently have a 660 ti and always hear about its memory bus and bandwidth issues.That got me thinking about memory bandwidth. The 660 ti is basically a bandwidth limited 670. The further I push the memory bandwidth on my card the closer I come to 670 performance. I started looking at specs on bandwidth, the GTX 580 came in at 192.4 Gb while the GTX 680 comes in at 192.2 Gb. and AMD's 7970 is 264 Gb and the 7970 GHZ comes in at 288 Gb.
After looking through some of the Valley benchmark thread, it seems as though the higher the Nvidia card score the higher the memory overclock.

So that all leads me to think that if the 700 series is only going to bring a roughly %30 improvement over the 600 series. I think they could pull that off with minor revisions to the actual GPU core and up the memory bus and bandwidth.

I wonder what 670's or 680's could do with the same memory bandwidth as the 7970 GHZ.

Again I am new to this and I would like to hear everyone else's thoughts and opinions.

Is my idea plausible or completely off?
    
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post #2 of 44
Nvidia is a company that just cuts corners when it comes to Vram.
AMD is always generous, funny how much more Nvidia is.
The 7Series will also be with the same issue I bet.
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post #3 of 44
Quote:
Originally Posted by RussianC View Post

Nvidia is a company that just cuts corners when it comes to Vram.
AMD is always generous, funny how much more Nvidia is.
The 7Series will also be with the same issue I bet.

And this is based off?

Remember when 8800GTX was king?

Oh wait, it also sported more memory.

GTX 480 had 1.5GB vs 1GB.


Invalid post.
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post #4 of 44
Without going into details, it will be interesting to see how they will manage to position top 7xx card (780?), so it is better than 680 and yet not good enough to harm Titan. They have some precarious price/performance balancing to do. Maybe Titan like gaming performance with 3gb of memory and less computing perf? Or will this be rumoured Titan lite?
Edited by Tomalak - 3/28/13 at 8:21am
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post #5 of 44
Quote:
Originally Posted by Tomalak View Post

Without going into details, it will be interesting to see how they will manage to position top 7xx card (780?), so it is better than 680 and yet not good enough to harm Titan. They have some precarious price/performance balancing to do. Maybe Titan like gaming performance with 3gb of memory and less computing perf? Or will this be rumoured Titan lite?

oO they have a TON of wiggle room there. A titan is ~ 10% less performance than 2 good 680s OC'd to max and SUPER smooth.

I can't see how they could have an issue when they have essentially the entire gap from 1 - > 2 cards to fill in based on performance. The titan junior will come out with ~15% less than the titan in performance, and the 780 or whatever top will come in at 25-30% less performance and fit in perfectly in the fold.
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post #6 of 44
Quote:
Originally Posted by Avonosac View Post

oO they have a TON of wiggle room there. A titan is ~ 10% less performance than 2 good 680s OC'd to max and SUPER smooth.

I can't see how they could have an issue when they have essentially the entire gap from 1 - > 2 cards to fill in based on performance. The titan junior will come out with ~15% less than the titan in performance, and the 780 or whatever top will come in at 25-30% less performance and fit in perfectly in the fold.

Well, excellent then! smile.gif

I'm in the worst position right now - sitting on the money and waiting for new stuff.

Dat damn upgrade itch!
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post #7 of 44
Quote:
Originally Posted by Tomalak View Post

Well, excellent then! smile.gif

I'm in the worst position right now - sitting on the money and waiting for new stuff.

Dat damn upgrade itch!

I'm not sure how that is a bad position. You can safely assume a Titan will beat any single card in the next generation of cards, especially with all the new reveals of runt frames coming out from GCN to boost the frame counts. There is no way that titan purchase would be invalidated by the next generation of cards. This is the first time since the 8800GTX that a card is literally too good for the next generation.
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post #8 of 44
Quote:
Originally Posted by amd655 View Post

And this is based off?

Remember when 8800GTX was king?

Oh wait, it also sported more memory.

GTX 480 had 1.5GB vs 1GB.


Invalid post.

Invalid Post? How about the 580, or 560? Hell even the 680's with 2GB chips. Cmon now.
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post #9 of 44
To get back to the topic of the 7xx series.

I am hoping that the single GPU cards will have a large memory bus width, if possible 512-bits, with that bus width even 3 GB of DDR5 would be enough, I mean what's the point of having lots of memory to keep the information in if you can't pump it to my screen and lock the frame rate to 60. With the smaller printing process there should be enough room to push to the 2,000 Mhz mark for memory and core speeds.
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post #10 of 44
Quote:
Originally Posted by RussianC View Post

Invalid Post? How about the 580, or 560? Hell even the 680's with 2GB chips. Cmon now.

Come on now, for 99% of the 680 market that is sufficient. How many people use over 1080p? As much of a proponent I am for 1440+ single monitor or large multimonitor set ups.. those are not even close to the norm for most people. The fact is the extra 1GB on the 7970 is largely unused by most users in most scenarios. Putting 2 gb on the card is far more cost efficient for them, since A) they designed the chip to use 2gb, and B) the market isn't demanding any more VRAM on the cards, so why waste money?

Quote:
Originally Posted by perablenta View Post

To get back to the topic of the 7xx series.

I am hoping that the single GPU cards will have a large memory bus width, if possible 512-bits, with that bus width even 3 GB of DDR5 would be enough, I mean what's the point of having lots of memory to keep the information in if you can't pump it to my screen and lock the frame rate to 60. With the smaller printing process there should be enough room to push to the 2,000 Mhz mark for memory and core speeds.

That sounds like the land of hugely diminished returns. You need to have enough GPU power to utilize the bandwidth. The controller takes up some of the die space, so with the width of the bus growing, you lose some performance. There is a middle ground to be found where just adding to the bus size will net you no gain or cause a loss in performance. I had a 670 GTX 4GB and it simply did not have enough power to handle the extra memory, and the bandwidth was not the issue, it did not have the computational capacity to flood the standard channel.
Edited by Avonosac - 3/29/13 at 7:01am
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