Does brand matter?

I am building a computer that will be used for soldidworks and ProE (3D CAD) and gaming.

I currently have the following CPU, GPU, and Motherboard.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150632

http://www.amazon.com/Intel-i7-3770K-Quad-Core-Processor-Cache/dp/B007SZ0EOW/ref=sr_1_1?s=electronics&ie=UTF8&qid=1364108519&sr=1-1&keywords=intel+i7-3770k

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131837

I was thinking of getting 8gb (2x4gb) of memory. I was told that brand does matter, and that i should be looking at either Corsair vengeance or dominator.

Is this an appropriate quantity of memory and what should i be considering when comparing memory?

Why does,
http://www.newegg.com/Product/Product.aspx?Item=N82E16820233254 cost $25 less then http://www.newegg.com/Product/Product.aspx?Item=N82E16820233282 even though the CAS is 1 lower and the timing is the same?
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More about brand matter
  1. Brand DOES NOT MATTER (at least not much). I'd go for 2x8GB if using CAD tools, and CL9, DDR3-1600, 1.5V.
  2. Someone Somewhere said:
    Brand DOES NOT MATTER (at least not much). I'd go for 2x8GB if using CAD tools, and CL9, DDR3-1600, 1.5V.


    Please elaborate a little more. How is it that you know brand does not matter, and why do you suggest that quantity? I am looking for reasoning with the advice so that i can hopefully make an informed decision.
  3. All the brands use much the same manufacturers (very few are OEMs) - exactly who soldered them to the PCBs and who made the actual chips doesn't change much. The only real difference is binning, default rates, the heat spreaders, and branding.

    If using cad tools you may want 16GB - not certain, up to you.

    Getting any faster (lower number) than CAS Latency 9 (CL9) increases price significantly without doing much to the speed. Same for going above DDR3-1600.

    Using more than 1.5V RAM is dangerous to Intel's IMCs (Integrated Memory Controllers), and voids your warranty.

    I'd suggest this (8GB): http://pcpartpicker.com/part/corsair-memory-cmz8gx3m2a1600c9
    or this(16GB): http://pcpartpicker.com/part/crucial-memory-bls2kit8g3d1609ds1s00
    And I'd go for something other than an XFX for the GPU: http://pcpartpicker.com/part/sapphire-video-card-111971240g

    Just recommendations though.
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