Trying to figure out what outperforms the other E6850 c2d vs i5-520m

[chadsxe]

HI,

I have been doing a bit of research as to which one of these two processors out performs the other. Currently I have an E6850 c2d in my desktop and was wondering what mobile processors out perform it. For instance...

This site says...

the E6850 outperforms the i5-520m. But

This site tells a different story.

Not sure what I should be trusting. Any input would be great.

Thanks

Chad

 

[IntelUser2000]

The i5-520M mobile CPU should be better performing than desktop Core 2 E6850. I'd guess 15 percent in single thread and 25 percent in multi-threaded apps.

 

[chadsxe]

The first site is right. The i5-520M mobile CPU should be better performing than desktop Core 2 E6850. I'd guess 15% in single thread and 25% in multi-threaded apps.

Wait what? Does not the first site say the E6850 outperforms the 520m. Am I reading something wrong?

Thanks

Chad

 

[EarthwormJim]

Wait what? Does not the first site say the E6850 outperforms the 520m. Am I reading something wrong?

Thanks

Chad

That first site's ranking doesn't make sense. The i5 is as fast in the majority of the benchmarks, and significantly faster in Prime; like twice as fast. I think the fact that the e6850 is missing a few benchmark results, throws things off on their automated ranking.

The i5-520m should be pretty much equal in performance to the core 2 duo. It has a clock speed disadvantage even with turbo mode, but it's faster clock per clock.

 

[IntelUser2000]

Sorry about that, I edited the original post.

Turbo mode on i5-520M is 2.66GHz with 2 cores and 2.93GHz with 1 core. Obviously there's no way the Core 2 can outperform the i5-520M in any situation. The 1 core Turbo mode is almost irrelevant for most cases FYI.

 

[EarthwormJim]

Sorry about that, I edited the original post.

Turbo mode on i5-520M is 2.66GHz with 2 cores and 2.93GHz with 1 core. Obviously there's no way the Core 2 can outperform the i5-520M in any situation. The 1 core Turbo mode is almost irrelevant for most cases FYI.

Clarkdale is faster clock for clock, but the E6850 still has a clock speed advantage even with counting turbo mode. They're honestly pretty comparable processors with the i5 being more power efficient while offering similar, and in some cases, better performance.

 

[IntelUser2000]

There's a mere 2.3% advantage in clock with single thread and 12% with multi-thread.

http://www.anandtech.com/show/2902/3

i5-520M is completely out of Core 2's league.

 

[Arkaign]

Don't forget that it's really hard to compare desktops with notebooks, different hdd/memory/gpu/etc, usually in favor of a decent desktop.