which quade core xeon processor would you pick

im sure a few of you out there are confused about the different model numbers ..im making a rug for computer animation.. need something very good for rendering

here are a few im looking at (Im buying 2 processors)

at the moment i have a skull trail board in the post and have already received 8 GB of crucial ECC FBDIMM 800 Mhz RAM

now would you rather get

Intel Xeon E5472 Harpertown Core, 3.00GHz, FSB 1600MHz, 12MB Cache, OEM----£559.35 Inc VAT


Intel Xeon X5460 Socket 771 x 4, Harpertown Core, 3.16GHz, FSB 1333MHz, 12MBCache, Retail---£764.17 Inc VAT

now the 3. 16 xeon has a 1333 FSB
while the 3 Ghz xeon has a 1600 FSB

also compare

Intel Xeon X5450A Quad Core 771, Harpertown Core, 3GHz, FSB 1333MHz, 12MBCache, Retail--£559.10 Inc VAT


Intel Xeon E5462 Harpertown Core, 2.80GHz, FSB 1600MHz, 12MB Cache, OEM--£508.27 Inc VAT

now the 3. 1Ghz xeon has a 1333 FSB
while the 2.8 Ghz xeon has a 1600 FSB

how much influnce does the FSB have.. bear in mind my motherboards max FSB is 1600 Mhz and i have ddr 2 6700 RAM.. which processor would perform better considering the slower ones have a faster FSB..

pls compare both pairs and then decided which one you would take overall

also -- if there are any performace difference is the extra cost worth it

im also considering

Intel Xeon E5440A Quad Core, Sok 771, Harpertown Core, 2.83GHz, FSB 1333MHz, 12MB Cache, Retail---£469.81 Inc VAT

(Compare this to your final choice )

thanks for any advice that can be given
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More about which quade core xeon processor pick
  1. Lower fsb and higher multiplier is better. This puts less stress on the motherboard and ram, allowing you to overclock it more. Pick a model with 1333mhz stock fsb instead of 1600mhz. FSB (calculate in sigle channel) x multiplier = cpu clock rate. They're in inverse ratio.
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