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Max is not average nor is it 1% minimums. This was brought up on Anandtech threads before. There are benchmarks that show a 1080TI cannot maintain above 144fps regardless of processor platform on max settings at 1440p at all times. There is a difference between Max and minimum. They can vary by 100 or more depending on the game. Your average will be above 144fps, but your minimums will drop below 144 on occasion when things become intense.
Also I have a 1080 and that 179 max would be absolutely rare on ultra at 1440p or with 1440p increased set scaling on 1080 screen size. It would only occur in the least intensive areas. I also have 7700k , 32mb 3000mhz cl14 ram, and my 1080 defaults to 2000mhz(could get 100 more but do not care). I have a 960 pro as well. So Im close to Max Gaming Specs I listed above, but with 1080 vs 1080ti. Comparing my settings and my tests to 30% increase of 1080TI performance I can guarantee you even without benchmarks that you CANNOT maintain above 144FPS at max settings at ALL times. Average yes. Max definitely. 10% minimums...probably. 1% minimums no. 0.1% minimums definitely not.
This often comes up. Do not think you can do a quick FPS check in ai bot mode or training and expect that to be multiplayer reality. Your Max and average FPS will be sufficient. Common minimums would be sufficient. However, 1% minimums and the rare 0.1% minimums that are sometimes ignored by players will drop below 144fps at max settings at proper render scale at 1440p in OW with 1080Ti.
Now, the minimums should be close enough to 144fps(I listed the expected values in previous post) that you probably wouldn't care and you definitely would not notice with your eyes. If you have a Gsync monitor and you limit to 140FPS to prevent latency spike during on/off transition, call it good.
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http://www.techspot.com/review/1352-nvidia-geforce-gtx-1080-ti/page5.html This benchmark uses a 7700k set to 4.9 OC, and 32gb 3000mhz ram. Scroll down to Ultra quality OW setting. Compare 1080p and 1440p.
1440p on ULTRA SETTINGS reaches minimums of 126FPS. Thats not even EPIC SETTINGS. 1080p however is capable of reaching the numbers you are expecting.