MP 1,1-5,1 2 x 2.26 ghz quad-core intel xeon vs 2x3.06 ghz 6 core

[FPCreative]

I have an early 2009 that I upgraded to 5,1. It's a dual 2 x 2.26 GHz Quad-Core Intel Xeon and I'm thinking about upgrading the processors to 2 x 3.06 GHz 6 core Xeon X5675. Would that be an improvement in processor speed?

 

[mikas]

Yes it would be an improvement with single core (+42%) and multicore (+80%). Depending on your workflows you will either notice it clearly, or then again, maybe not. EveryMac and Geekbench scores below:

 

[KeesMacPro]

For the MP 4,1 DUAL you'll need delidded CPUs .

 

[FPCreative]

I have an early 2009 that I upgraded to 5,1. It's a dual 2 x 2.26 GHz Quad-Core Intel Xeon and I'm thinking about upgrading the processors to 2 x 3.06 GHz 6 core Xeon X5675. Would that be an improvement in processor speed?

Thanks and another quick queston, can I install ddr3-1333mhz memory with dual intel xeon x5675 cpus or do they need to be 1066mhz

 

[KeesMacPro]

Thanks and another quick queston, can I install ddr3-1333mhz memory with dual intel xeon x5675 cpus or do they need to be 1066mhz

Yes, I would install 1333MHz memory , but 1066MHz RAM sticks remain compatible.