Not Having Desired Performance with Xeon Build

[ZurokSlayer21]

My Build consists of the following:
CPUs = 2x Xeon x5687 3.66ghz Quad-Core 8-Thread
40 GBs of 1333mhz ECC Memory
Radeon R9 280x XFX DoubleD Graphics card
Supermicro X8DAH+-F Motherboard
While rendering is very good and fast, I am not getting a very good frame rate in Blender. When I run it in Cinbench, My system ranks even higher than the i7 4790k, but it starts lagging faster than my other system with an i5.

 

[Karsten75]

Is this an issue with Blender's use of the GPU? Since you have a single GPU, I suspect tht Blender might not be able to schedule sufficient work from the second processor in your rig?

 

[nikaldro]

With that much CPU grunt, it's possible that the issue is RAM speed or GPU grunt.

 

[Karsten75]

That brings another issue to mind. 40GB of RAM? What RAM configuration do you have in this rig? Seems unbalanced.

 

[ZurokSlayer21]

Each Processor has 20 GBs, or 5 x 4GB DIMMS, because I don't have enough DIMMS to fill all 18 slots just yet.
And the RAM is the fastest RAM frequency I could use in this motherboard.

My goal of this rig was to get a nice workstation that can render fast and for a long time, while being adequate for gaming and working with high-poly models.