Opteron CPU - Big enough difference?

September 8, 2011 at 14:40:09
Specs: Windows 2003, AMD Phenom II X4 / 4GB RAM
I touched on this in the other thread, but I start a new one for this question since it is different. Since I now know I can run dual 8-core CPUs in Windows Server 2003 Enterprise, my final question before purchasing the hardware is this:

The decision is to go with either Opteron 6128 or Opteron 6134. The only difference I can see is the clock frequency and I wonder if the lower amount will hurt me in the end.

The Opteron 6128 is a 2.0GHz 8-core CPU
The Opteron 6134 is a 4.3GHz 8-core CPU

The difference is small but the price difference is $300 per CPU. If I go with the 6128, I'll save $600 which is very attractive, but will the power difference be noticeable? If the difference is noticeable, I have no difficulties spending the extra $600, but I have no interest in throwing that amount away if it wont make a difference in the end.

My current system runs a couple of Opteron 2220 2.8GHz and since the clock speed is much higher on these, will I actually decrease the performance by buying the new Opterons, even though I'll gain many more cores?

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September 8, 2011 at 16:44:00
You would want the 4ghz but you may wish to review a few things first before purchasing.

Start by finding a mainboard that support dual 8 core opterons.
Then check the OS compatibility list to make sure the board supports 2003 EE

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September 8, 2011 at 17:39:46
Run a performance log on the current system to decide which way to go.

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