775最强处理QX9770有多强，能i7比吗？

只能用来和第一代i7对比了。1156针i7-860比X9770强10%的样子。所以，和后面的i7基本不是同一个档次的产品。
Intel Core2 Extreme X9770 @ 3.20GHz + Compare Average CPU Mark
Socket: LGA775
Clockspeed: 3.2 GHz
No of Cores: 4
Typical TDP: 136 W

Other names: Intel(R) Core(TM)2 Extreme CPU X9770 @ 3.20GHz
CPU First Seen on Charts: Q4 2008
CPUmark/$Price: 2.89 Overall Rank: 592
Last Price Change: $1608.95 USD (2016-11-27)
性能测试得分 4647

Intel Core i7-860 @ 2.80GHz + Compare Average CPU Mark
Socket: LGA1156
Clockspeed: 2.8 GHz
Turbo Speed: 3.5 GHz
No of Cores: 4 (2 logical cores per physical)
Typical TDP: 95 W

Other names: Intel(R) Core(TM) i7 CPU 860 @ 2.80GHz
CPU First Seen on Charts: Q2 2009
CPUmark/$Price: 53.35 Overall Rank: 527
Last Price Change: $94.99 USD (2010-07-04)
性能测试得分5068

等于第一代的I5
I5 760
无法和现在的I5 和I7比