And if it works for you it ' s fine , FOR YOU . Your computer is not gonna perform worse than in 2010 when you bought it if your usage hasn ' t changed whatsoever . That said , while you can even do some light work , even superlight video editing , a professional wouldn ' t be able to use your machine . Why ? Because the 2010 doesn ' t support 4 K editing , your graphics simply doesn ' t support 4 K whatsoever . An Air does , even 2012 Airs do . If that doesn ' t convince you that you ' re wrong then I ' m out of ideas . What you fail to understand that it doesn ' t mean your computer is equal to a newer one . Your computer is old , there ' s no getting away from that , and any creative use will be vastly improved by buying into the Intel Core generation , while you happen to have the last year of the C 2 D generation of processors . There haven ' t been any major upgrades since 2011 so you saying that an MBA from that year would feel a performance gain in terms of processing power is plain wrong because since 2011 every processor refresh have been related architectures . Not the same ones , but the difference is miniscule in processing power and instead Intel ' s main focus has been making processors more powerefficient , not faster . The bigger performance difference is graphics processing which has increased by double digit % age every refresh . But unless you do anything graphics intensive you won ' t notice a difference whatsoever . The other big thing isn ' t processor related whatsoever , it ' s the prevalence of SSD storage that allows the computer to read files faster , and thus launch them quicker . The MBA from 2011 has one of these too , while your 2009 doesn ' t . and I thought I ' d mentioned this already but it may be on another chain , my machine is the 2010 model not 2009 so the difference is a little although not entirely less dramatic than the 2009 comparison . Not by a whole lot . Both 2009 and 2010 are Penryn architecture processors , and the processor in the 2010 only has a slightly higher clockspeed . With processors of the same architecture clockspeed will be close to linear in performance potential so the difference is 2 . 42 . 26 6 %. So hardly much of a performance upgrade in CPU processing , the big difference is the 320 M graphics in the 2010 over the 9400 M of the 2009 , where graphics perforance is almost twice faster . But it still isn ' t fast enough to support 4 K editing .