2011-02-25 01:47:00     Performance gain with 54x compared to 53x

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2011-02-25 01:47:00     Performance gain with 54x compared to 53x

Mattias K (SWEDEN)

Message: 98404   

 

Hi,

 

Has anyone done any performance comparison between a device from the 53x series and a 54x series device they would like to share? We are currently thinking about an upgrade.

 

I'm specially interested if the comparison is on an algorithm in userspace.

 

regards,

 

Mattias

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2011-02-25 02:08:43     Re: Performance gain with 54x compared to 53x

Simon Brewer (AUSTRALIA)

Message: 98405   

 

Probably the biggest difference is the DDR memory interface; your cache line fills will be quicker.  The core is pretty much the same however as the 53x family, except for a double width memory infrastructure (32 bits).

 

As to how much faster that will make your code... well that depends exactly on what the code is doing.  If it requires a lot of access to DRAM, then it might be quicker.

 

Regards,

 

Simon

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