i5 2500k (at 4ghz) vs i7 2600

[questforquiet]

This is probably a stupid question but i am running my i5 2500k at 4.ghz on stock volt. So far seems stable.

So got a nice quiet overclock that doesn't pull a lot of power. Therefore the 2500k at 4.ghz beats the
i7 2600 in video encoding even tho the 2600 has 8 threads correct?

thanks

 

[kmufc77]

no, even @4ghz the 2500k would still be behind a 2600 when video encoding as 8 threads beat 4 every day with video encoding.

 

[jbloggs]

This may give some idea...

 

[CAT-THE-FIFTH]

The Core i7 also has more L3 cache per core meaning it has improved IPC over a Core i5.

 

[questforquiet]

no, even @4ghz the 2500k would still be behind a 2600 when video encoding as 8 threads beat 4 every day with video encoding.

Oh right, many thanks!

 

[questforquiet]

This may give some idea...

Cheers, yep checked out that website before
It only compares a i5 2500K vs i7 2600k at stock

 

[DragonQ]

You can work out overclocked performance (roughly) by dividing by stock clock and multiplying by your current clock.

In x264 second pass, i5-2500K at stock scores 27.7. At 4 Ghz, it'd score ~33.6. The i7-2600K scores 36.3 at stock. These numbers also show that HyperThreading (and the extra L3 cache) give a ~25% clock-for-clock boost to video encoding.

Of course, you could also run the x264 benchmark yourself to compare.

 

[questforquiet]

You can work out overclocked performance (roughly) by dividing by stock clock and multiplying by your current clock.

In x264 second pass, i5-2500K at stock scores 27.7. At 4 Ghz, it'd score ~33.6. The i7-2600K scores 36.3 at stock. These numbers also show that HyperThreading (and the extra L3 cache) give a ~25% clock-for-clock boost to video encoding.

Of course, you could also run the x264 benchmark yourself to compare.

Cheers never knew this, thanks again