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How much better performance is ultra SPARC IV+ 1.95GHz than 1.35GHz?

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Operating Systems Solaris How much better performance is ultra SPARC IV+ 1.95GHz than 1.35GHz?
# 1  
Old 06-12-2009
How much better performance is ultra SPARC IV+ 1.95GHz than 1.35GHz?
Dear Guru,

My boss has a plan to upgrade cpu of server so he needs to know how much better performance(percentage) is Ultra SPARC IV+ 1.95 GHz than Ultra SPARC IV 1.35 GHz?.

I am looking for documentation to reference but I didn't see anything close to my point. If who know, please share it or share your opinion.

Thank u
Last edited by unitipon; 06-12-2009 at 12:24 PM.. Reason: wrong typing
# 2  
Old 06-12-2009
I'm not aware of 1.35 Ghz UltraSPARC IV+.
If you mean UltraSPARC IV+ at 1.5 Mhz, I would expect a gain ranging from ~0% if the application isn't CPU bounded to ~30% if it is.
If the older CPU is actually an UltraSPARC IV at 1.35 Ghz, the gain might be larger than 45% as the newer CPU has several architecture enhancements including the support of a four level and larger internal cache.
# 3  
Old 06-12-2009
thank you for your reply so Do you have any document to reference?
# 4  
Old 06-12-2009
why not use the sun try&buy offer to do your own benchmark before you make any decisions?
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