The link on the vendetta2 vs the xigmatek s1283 vs thermalright true is correct with one very key point listed,.... LOW RPM FAN
I can give you some other review sites to compare that specifically list the fans used,... basically the vendetta2 and xigmatek S1283 are very similar as teh vendetta 2 is a knockoff of the S1283, the main difference between the 3 will be fin spacing, fin thickness and fan used. The TRUE will slightly outperform the other 2 HSF with a HIGH CFM fan or 2 in push/pull configuration, due to its close fin configuration. With lower rpm fans the ones with greater fin spacing do better.
If you want a quiet yet good performing tower heatsink,... you go with greater fin spacing (look at the thermalright HR-01 plus for instance that is designed to work fanless
http://www.silentpcreview.com/article842-page4.html). If noise is not as much concern, but cooling is,... a high cfm fan with tighter spacing.
Xigmatek S1283 vs TRUE
http://www.silentpcreview.com/article842-page4.html
Xigmatek S1283 vs TRUE vs Vendetta 2
http://www.madshrimps.be/?acti...tpage=3615&articID=857
I have seen another somewhere with the zalman 9700 and it did fairly well,...
http://www.silentpcreview.com/article727-page3.html
http://www.anandtech.com/casec...howdoc.aspx?i=2932&p=5
keep in mind it is a different design than the towers,... it has the advantage of cooling some motherboard components as well by directing some air to the motherboard, but typically for max "cpu cooling" a tower with exhaust directed to rear case exhaust (with a shroud even) is generally going to do a little better. Also performance on all of these will vary slightly based on case cooling and such!
The towers might have some clearance issues with that side panel fan,... you can always go with a thinner fan on the side if need be (I am assuming you have the standard 25mm width side fan and you can find some that are 12.5mm that still pull air)
The best price/performance will be the Xigmatek typically AR/FS on newegg for around $27
The TRUE is the most expensive with no fan included (switch with side fan if getting a thinner side panel fan) running closer to $60+fan