In short, the GeForce GTX 1070 will offer you a performance close to an overclocked GeForce GTX 980 Ti, while it consumes significantly less power and will retail for about $380.
Nvidia's latest offering is capable of delivering a 1440p/60fps performance. For more demanding 4K gaming, you’ll get about 30fps, under demanding quality settings, so adjusting them would be necessary in order to get up to 60fps.
If you solely have performance in mid, it's an easy call to upgrade from the 970 or even the 980 to the 1070, but things get a bit trickier if you own a 980 Ti or happen to have a Titan X. According to our tests, the 1070's performance sometimes matches those older cards, but is sometimes beaten by them as well.
Typically, you should expect a Titan X-class power and an almost 25 to 70 percent gain compared to the older GTX 970, depending on the game and the resolution setting. This performance gain becomes almost 20% compared to the GTX 980 and AMD's R9 Fury X. Compared to an overclocked GTX 980 Ti, the GTX 1070 could give 10-15% lower FPS.
However, it's the price tag of the GTX 1070 than could send you to your closest store to buy it. The card - even the $499 Founders Edition - invalidate any reason to buy the Titan X, and also any overclocked GTX 980 Ti custom card as well as AMD’s Fury lineup.
The GTX 1070 hits the streets on June 10. By then, AMD's team is expected to provide details on its new Radeon graphics cards based on its own 14nm FinFET Polaris GPUs, so stay tuned.