I am very disappointed.GTX1080 have 33% more SP than 1070 and 25% more memory bandwidth.Is this card really GTX1070 or some GTX1060Ultra or 1060TI?
It is most cutdown x70 card ever made.
It's much worse than that because you didn't account for the disparity in clocks
Shader performance
1080 vs. 1070 = (2560 CC x 1733mhz) / (1920 CC x 1600mhz) =
44.4% higher
Texture performance
1080 vs. 1070 = (160 TMU x 1733mhz) / (120 CC x 1600mhz) =
44.4% higher
Memory bandwidth
1080 vs. 1070 = 320GB/sec vs. 256GB/sec or 25% higher but GDDR5X will overclock to 370GB/sec, while it's highly doubtful 8Gbps GDDR5 will go much beyond 8500-8600mhz (275GB/sec). That means max overclocked, 1080's should have
30-35% higher memory bandwidth over max overclocked 1070's bandwidth.
This is NOT a x70 level card. It's NV taking a GTX660/660Ti and re-badging it as a GTX1070.
GTX680 was 27% faster than GTX660Ti
Since GTX660Ti was a $299 card, NV is effectively doing this:
Reference cards: $499 GTX680 -> $699 GTX1080
Reference cards: $299 GTX660Ti -> $449 GTX1070
The biggest marketing scam in the history of GPUs accompanied by a huge pricing increase as well from already inflated prices of 2012 GTX600 series. Since the masses do not buy AMD, AMD has no cash flow for sufficient R&D and to hire the best engineers to be able to do anything about this nonsense.
PC gamers voted for years buying NV over and over and over and now they got exactly what was coming to them --> Record margins from NV = Record prices of mid-range GPUs (masquerading as high-end via marketing re-branding strategies, bifurcating a generation into two halves), while AMD is left hopelessly trying to scramble for the remaining 20% market share while still losing $$$.
Don't forget, a stock GTX670 cost $399 and outperformed GTX580 (aka Titan X predecessor) by
20% on launch day.
There is no way a GTX1070 will beat the Titan X by 20% at 1440p/1600p, further proving it's not a real x70 series card but a x60Ti re-branded to x70 because there is no competition from AMD.
None of this will change until people stop buying NV and start buying AMD. As long NV gets $ from its loyal userbase, they will continue to raise prices. As long as AMD doens't get $, they have no $ to develop next generation GPUs. This in turn allows NV to neuter performance any way they like, while raising prices. Expect GP100/102 to cost even more than $699 780Ti or $649 980Ti did. It's only going to get worse actually because AMD doesn't have money for a price war and lack the human capital/R&D resources to keep up. That means Vega should also cost a lot too. All the bickering online defending NV for decades have finally resulted in one of the worst next generation line-up of all time (i.e., Record prices of next gen mid-range cards and the most neutered x70/x75 card
ever made).