800 series.

[Ian Evey]

The average is still only 22% and not 30%, and you're comparing an overclocked 780 to a stock 770.

If you compare apples to apples, like with a GTX 770 Windforce then it's still only 15%. In fact in the case of the 770 Windforce, that's only 16% slower than a stock Titan at 1920x1080!

http://www.techpowerup.com/reviews/Gigabyte/GeForce_GTX_770_WindForce_OC/27.html

It's simple (and random matt has already decided to wait anyway), a GTX 780 is a terrible upgrade from a GTX 770. The only reason to do it is if you are very fortunate with the amount of disposable income you have.

Yet you said a 290 would be worth it

 

[systemerror]

The average is still only 22% and not 30%, and you're comparing an overclocked 780 to a stock 770.

If you compare apples to apples, like with a GTX 770 Windforce then it's still only 15%. In fact in the case of the 770 Windforce, that's only 16% slower than a stock Titan at 1920x1080!

http://www.techpowerup.com/reviews/Gigabyte/GeForce_GTX_770_WindForce_OC/27.html

It's simple (and random matt has already decided to wait anyway), a GTX 780 is a terrible upgrade from a GTX 770. The only reason to do it is if you are very fortunate with the amount of disposable income you have.

I think your calculations are incorrect as pointed out and in real performance there is hardly a difference between a 780 or 290 so not really understanding how you can say one is a decent upgrade and not the other.

 

[Rroff]

Hmm my 780 GHZ (granted pretty decent out the box boost) straight out the box shows the 680/770 easily 30% behind and theres more in the tank still clock wise.

 

[Yaayuh!]

There's always something newer and better around the corner.
The 780 is better than the 770 and overclocks better as well.
Sell the 770 now whilst you can still get some return on it, and get a non-ref 780 and enjoy.

MSI Lightning LE 780 @ £389.99 - http://www.overclockers.co.uk/showproduct.php?prodid=GX-234-MS&groupid=701&catid=1914&subcat=1341

Gigabyte GeForce GTX 780 WindForce 3x OC Rev2.0 @ £399.95 - http://www.overclockers.co.uk/showproduct.php?prodid=GX-114-GI&groupid=701&catid=1914&subcat=1341

 

[Kaapstad]

Fair enough, no worries




So you didn't look at the citation I provided?

Here it is again: http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_780_Ti/27.html

You are simply incorrect. The GTX 780 is 16.2% faster than a GTX 770 averaged across many games and all common resolutions, and its lead is reduced to 14.6% at the most common resolution of 1920x1080.

Using your link

Forget about the lower resolutions as they are CPU bottlenecked

Look at the 2560 x 1600 chart

GTX 770 = 69%

GTX 780 = 100%

Difference 31

31/69x100 = 44.93% difference

It is not even close, it is a total walk over for the GTX 780.

As to Mantle, at the moment it is a total can of worms. Even AMD warn people that there is still work to do. Whether this is to do with BF4 or Mantle I don't know but the bottom line is - Mantle has great promise but it is not working perfectly yet.

Even if I was using an AMD card, I would not have Mantle on the system until it is working right.