Dominator Platinum vs Vengeance Pro

[rtchal]

What is the difference in specs between the Corsair Dominator Platinum and the Corsair Vengeance Pro RAM? Why should I pay $40 more for the Dominator Platinum?


CORSAIR Dominator Platinum 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1866 Desktop Memory Model CMD16GX3M2A1866C9
http://www.newegg.com/Product/Product.aspx?Item=N82E16820233287

CORSAIR Vengeance Pro 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1866 Desktop Memory Model CMY16GX3M2A1866C9 (Silver)
http://www.newegg.com/Product/Product.aspx?Item=N82E16820233539

[_I_]

both kits have the same specs
1600 cl9-10-9-27 1.5v

what are the main uses?
od you need 16g of ram?

here is a geil kit for less
GeIL EVO Veloce Series 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1866 $140 - 20% code STRWK617 = $112
1866 cl9-10-9-28 1.5v
http://www.newegg.com/Product/Product.aspx?Item=N82E16820144617

[LoTekRabbit]

Avoid high profile memory and get low profile sticks instead if you eventually plan to fill all slots and use an air cooler. You will have a tough time finding one that will have enough clearance over the heat spreaders.

[rtchal]

I don't need to worry about an air cooler, as I will be using a Corsair H80i liquid cooler. I'm going to be compiling plenty of stuff, hence the 16 GB.
I do have one more question, while I am talking about RAM. Is it better to use all for slots (4x4GB), or is it OK to use just two slots (2x8GB)?

[_I_]

if you have a 2x4g 1.5v kit, you can add a 2nd 2x4g kit
just make sure the speed, timings, and voltage are the same

but if you ran a 1.65v kt, it may kill the imc on the cpu, and it cannot run 3-4 dimms

if the board is dual channel, 2x8g or 4x4 will be the same result
if the board is tri channel (socket 1366), 3x4g would be best, 4x4g or 2x8g will be slightly slower
if the board has quad ch (socket 2011), a 4x4g kit would be best, 2x8 would be slower

[LoTekRabbit]

2x8GB.

Less stress on the memory controller and it won't potentially limit your overclocking capability.