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690 GTX Q-SLI vs 7990 Q-Fire vs TITAN Q-SLI - Page 5

post #41 of 45
Thread Starter 
Quote:
Originally Posted by sugarhell View Post

Actually ht helps a lot. If you want to go 3-way or quadfire then you need to move to x79 and 3930k. No point to have 3k gpu with 200 euro cpu.

Games hardly benefit from HT since most games don't even utilize more the 2 cores, let alone 4 and HT.

http://www.techpowerup.com/reviews/Intel/Core_i5_3570K_and_i7_3770K_Comparison/8.html

Don't claim otherwise, i actually tested this myself with my brothers 3770 vs my 3750. Clock for clock they run equal when gaming. Did multiple benchmarks on multiple games.

From the link.
Quote:
Nvidia itself only mentions SLI and 3-way SLI, and indicated that 4-way SLI would not be possible with the GTX Titan. However, the Nvidia-sponsored overclocker Kingpin has already posted 3DMark scores with four Titan cards on HWbot.org. We, of course, had to try our own 4-way SLI configuration, and we're happy to report that it's definitely possible.
That clearly indicates that the 4th card in this case is not optimized (yet) to run in Quad SLI since Nvidia itself tells us so.

and then a little lower
Quote:
Four cards perform poorly in the frametimes test. There's a reason why Nvidia talks about 3-way SLI but not 4-way. With Very High settings 3-way SLI scores almost the same as normal SLI, and 4-way SLI decreases performance.
However... then comes:
Quote:
With three Titans we achieved 42.1 fps and a frametime score of 50.4 ms. Better, but still not great. It turns out that adding a fourth Titan card did prove beneficial for this game, and the performance was increased to 53 fps with a frametime score of 32.2 ms.

Really vague report.. and even if it was valid about decreased scores with a fourth card, then i'd point at non optimized drivers straight away. And if that's not the issue that holds them back then this is definantly an exception!
Edited by unseen0 - 3/24/13 at 12:09am
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post #42 of 45
Holly cow according to that chart quadfire 7970 is faster then the titan 3-way sli? Wow man I wish I could afford either of those cards:D
     
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post #43 of 45
Thread Starter 
that's actually quite logical smile.gif
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post #44 of 45
Quote:
Originally Posted by shilka View Post

4 cards are going to be slower then 3 cards your CPU will be the bottleneck unless you have some insane monster overclock

You're not entirely wrong. It's true that you can bottle neck your system running 4 cards rather than 3. But that all depends on what cards you happen to be running and the variable of the other parts of your rig. If your processor is a Hexa core such as the Intel I7 3930K you probably would get a better performance out of the 4 cards than the 3 (Also depending on your motherboard's SLI capabilities) But given that your processor isn't as good to be compatible with such power in terms of video RAM, yes you would bottleneck your system.
post #45 of 45
Now I think it's very safe to say that overall, the AMD 7990 is defenitely the strongest card out as of the moment. But, I'm really questioning it's ability to outdo Titan's in 3 way SLI. I highly doubt that fact. Lets face it, a 7990 is the best card but when compared to a 690, it does win in most situations even temperature(Which is very weird) but, it doesn't win by quite enough for me to think that it can outdo Titans in 3 way SLI. I highly doubt that.
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