i7 920 @ stock - 775 equivalent ?

[cpatain-chaos]

Hi,


Just curious, now that 920's are in a lot of systems and are proving to be popular what would a 920 at stock 2.66 be considered and equivalent to ? in real world terms as opposed to synthetics and looking at the cpu's as a whole ?

Would it be a match for a Q6600 @ 3.2 or would we be looking at something like a Q9550 at 3.4 ? assuming that the 920 has HT enabled and turbo / speedstep disabled so that it retains the same clock speed throughout ?

Anyone know or able to take a well educated guess

 

[Tute]

It really depends.

From the first performance reviews I read, I believe Core i7 shows bigger gains in certain applications than others.

So in terms of what Core 2 CPU is comparable, well, I think in games you wouldn't see a huge jump over a stock Q9550/Q9650.

But in virtualisation, you're going to need a beefy overclock to get it up to i7 performance. Probably well over 3GHz but that's just a guess as I don't do that kinda thing myself.

 

[reflux]

Yup, as above - the i7s are faster than Core 2 but they only really shine in multithreaded apps.

To compete with a stock speed 920 you'd be needing a fast Yorkfield quaddie; 3.5ghz or so.

 

[mmj_uk]

It really depends on the application being run.

For encoding and other CPU intensive tasks the i7 seems to be around 20-30% faster clock for clock on average, so you'd probably need a 3.2-3.4Ghz C2Q to match it.

Whereas for gaming, CPU speed seems to be making very little difference once you reach a certain point.

The advantage to i7 of course is that most will reach 3.8GHz rather easily.