Considering a 7990

[Smartazz]

If multi GPUs are as bad as people say, maybe a water cooled GTX 780 would be a good choice. Assuming that the GTX 780 is GK110.

 

[wand3r3r]

If multi GPUs are as bad as people say, maybe a water cooled GTX 780 would be a good choice. Assuming that the GTX 780 is GK110.

You may as well wait for the couple weeks and see if you're in no hurry?

The 780 may not be that great, or the price may simply slide up to continue the pillaging this generation.

The 7990 prototype looks good but who knows how far out it is (why'd they launch without it?).

Bitmining would be best started immediately, difficulty is increasing.

Not exactly a straightforward choice. If you can wait till the 23rd it should be clearer and maybe we'll hear about the prototype too if the 780 is indeed $800 or something ridiculous.

 

[3DVagabond]

If running V-Sync and limiting FPS at 59 with RivaTuner, is there any reason to run RadeonPro? Also, what is the purpose of turning on V-Sync if one is already limiting the FPS to the monitors refresh rate?

Thanks for any help/info. I've been mining with a 7970 crossfire setup for a while now and have decided I want to play a game or two.

He said V-sync is on, and limiting FPS to 59 with rivatuner.

Then he asked about simply capping frame rates.

 

[Smartazz]

Balla, I took your advice and bought another 7950. What motherboard should I get with two 8x PCI-e slots?

 

[BallaTheFeared]

Are you planning to stick with Sandy Bridge or were you going to upgrade to Haswell in another month?

How much are you looking to spend on the board?


*cough* You should use it in your x4 slot to mine while you wait for Haswell and a CF fix. *cough*

Otherwise grab a cheap z77 if you don't care.

http://www.newegg.com/Product/Product.aspx?Item=N82E16813157330

 

[Lepton87]

I 2nd a Titan. Overclock it and it will be like an SLI 680 but much smoother.

Titan is not as fast as 680 in SLI and you can't count on OC. Some don't OC almost at all like mine . I don't think it will be smoother then SLI680 considering that it delivers less fps. The biggest advantage is that you don't have to wait for drivers to support SLI in a given game.

 

[Smartazz]

Are you planning to stick with Sandy Bridge or were you going to upgrade to Haswell in another month?

How much are you looking to spend on the board?


*cough* You should use it in your x4 slot to mine while you wait for Haswell and a CF fix. *cough*

Otherwise grab a cheap z77 if you don't care.

http://www.newegg.com/Product/Produc...82E16813157330

If Microcenter has a good deal on a 4770K I'll probably go with Haswell. For a motherboard, $200 or less would be my budget. I'm planning to use it with my 4x slot mining and gaming for now.

 

[bystander36]

Titan is not as fast as 680 in SLI and you can't count on OC. Some don't OC almost at all like mine . I don't think it will be smoother then SLI680 considering that it delivers less fps. The biggest advantage is that you don't have to wait for drivers to support SLI in a given game.

Higher FPS isn't the only thing that determines smoothness as you can see from FCAT data from CrossfireX systems (including gamer side by side tests). I'm not sure what to believe on what looks smoothest between the two. On one hand, 680's have better FPS, on the other Titan has lower latency and consistent FPS, not that the 680's are bad. The question is which Pro's out way the Con's the most.

 

[BallaTheFeared]

They should have the same deals they did with SB and Ivy, that would be my guess (and hope).

If you're planning to go Haswell (assuming there are deals at MC, which is a good bet), I would recommend just using the second card in the x4 slot as a dedicated miner until you move.

I'm doing that until at least Haswell anyways (I have two 7950s mining 24/7 on a 1156 board), as AMD's CF drivers are in disarray with a fix already in the works and demoed with the 7990. Make a few bucks over this month while waiting for Haswell/CF fix, imo.

Otherwise used is a good option, at least it has been for me. I grabbed a WS Revolution in April 2012 for $125 off ebay.

 

[Smartazz]

How is Crossfire broken though

 

[wand3r3r]

Try it and see what you think.

 

[BallaTheFeared]

http://www.pcper.com/reviews/Graphi...ils-Capture-based-Graphics-Performance-Test-3

 

[wbynum]

To be honest I don't completely understand the whole dropped frames/runt concept, but playing FC3 Blood Dragon at 1440p did seem to have a noticeable improvement in "smoothness" when I turned on crossfire on my two 7970's as opposed to running a single 7970. I am limiting FPS to 59 and was running v-sync. I have since turned off v-sync though. Do get some tearing but it is minimal.

 

[Smoblikat]

My worry is that the second PCI-E slot on this motherboard is 4x so it would starve a second card. It might make tri fire out of the question too.

Edit: I saw that you updated your post. Is the 7990 that poorly priced? I mean, it's two 7970s with a great game bundle.

If you put the 7950 in the 4x slot it will have MORE than enough bandwith. Even if you are running PCI-e 2.0 x4 is plenty, even for dual GPU cards. Linus ran a 6990 at PCIe X1 speeds and say less than 5% performance decrease..............and thats a dual GPU card.

 

[Smartazz]

If you put the 7950 in the 4x slot it will have MORE than enough bandwith. Even if you are running PCI-e 2.0 x4 is plenty, even for dual GPU cards. Linus ran a 6990 at PCIe X1 speeds and say less than 5% performance decrease..............and thats a dual GPU card.

I'll have the system soon to see this firsthand.