Which processor for this rig?

I've pretty much decided on the following mobo, graphics card, and ram but I can't make up my mind about the cpu. I'm using the build for video encoding. I'm looking for the CPU that's won't create a bottleneck for the system and won't be overkill.

Open Box: MSI 870A-G54 AM3 AMD 870 SATA 6Gb/s USB 3.0 ATX AMD Motherboard

GIGABYTE GV-R485OC-1GH Radeon HD 4850 1GB 256-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card

G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-4GBRL

The three CPU's I'm interested in are

AMD Phenom II X6 1055T Thuban 2.8GHz 6 x 512KB L2 Cache 6MB L3 Cache Socket AM3 125W Six-Core Desktop Processor HDT55TFBGRBOX

AMD Phenom II X4 965 Black Edition Deneb 3.4GHz 4 x 512KB L2 Cache 6MB L3 Cache Socket AM3 125W Quad-Core Processor

AMD Athlon II X4 635 Propus 2.9GHz 4 x 512KB L2 Cache Socket AM3 95W Quad-Core Desktop Processor ADX635WFGIBOX
3 answers Last reply
More about which processor
  1. what is your budget?

    don't go with that mobo, it is open box and you never know if they work or not, they are also non refundable


    gigabyte mobo, 880G ..........109

    go with the 965

    why go for old vid card try this


    Sapphire Radeon 5770......150

    total: 439
  2. Be 100% sure that your encoding software/apps take advantage of GPU acceleration 1st. If they dun it's easy as pie :P

    1055T+ 880G/IGP chipset
  3. Thanks guys, you've both given me a lot to think on.

    I've got a case, psu, os, & hd already. I was hoping to spend $450 for the remaining bits.

    The encoding software I use now seems to use all 4 cores of my Q6600. I'm not sure about 6 cores tho.

    I'm building a new machine because my son needs a new computer. I'm gonna keep the new build for myself & give him my old machine.

    OK, you've talked me out of the open box mobo. I misunderstood the warranty policy.

    With the gigabyte 880 mobo & the sapphire video card, would the choke point be a 955 Phenom quad?

    I had kinds set an upper limit of $475. The 105ST will put me into the $530 range after rebates. However if the 955 is the choke point I can rationalize it to the spouse.
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