[ELDK] DDR vs SDR SDRAM speed
Wolfgang Denk
wd at denx.de
Mon Nov 17 00:59:31 CET 2008
Dear Chris,
In message <E192DE55D4494F82BE3507C22CD72D50 at kos> you wrote:
>
> Has anyone got an approximate improvement of DDR over SDR on the 5200?
> For example, something like a bogomips output.
Memory speed and bogomips have nothing to do with each other. Bogomips
is just a virtual CPU clocking number and can only be used to compare
CPUs of the same family (not even architecture).
As a ballpark number, you can expect some 50% better performance with
DDR on the 5200, compared to using SDRAM.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
How does a project get to be a year late? ... One day at a time.
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