Intel Core i5 Performance

[Blauhung]

But why noone answers my question ... ? i5 is less expensive than i7, and still it performs better in the benchmarks we saw ... It simply, doesn't make sense ...

you must have missed my post at the bottom of the last page....

as a platform, i5 will be cheaper.

[George_o/c]

you must have missed my post at the bottom of the last page....

as a platform, i5 will be cheaper.

No I've read every post of this thead thoroughly ... every word maybe twice

I know it will be cheaper as a platform than i7 ... but why it's cheaper than i7 yet performs better than i7 ?

[Blauhung]

No I've read every post of this thead thoroughly ... every word maybe twice

I know it will be cheaper as a platform than i7 ... but why it's cheaper than i7 yet performs better than i7 ?

ah, sorry, It's late and I'm still stuck at work.

Most likely this is due to the fact that there's just less components to the platform. The i5 removes several unnecessary layers of hardware that just don't need to be there on a single socket board with the current arch.

Also, Core i7 is the server platform shoehorned into the single socket high end consumer market. Server platforms always tend to make sacrifices on performance to compromise and improve reliability and efficiency on specific work loads.

[Donnie27]

No I've read every post of this thead thoroughly ... every word maybe twice

I know it will be cheaper as a platform than i7 ... but why it's cheaper than i7 yet performs better than i7 ?

PCI-E controller is on die on the i5 and is NOT on the i7 but i7 has more PCI-E lanes.

It's how you use it maybe. i7 is made to do lots more of a server chip made for multi-tasking, Vitalization, connect to other chip (disable sections) and etc.... It also has more PCI-E lanes. Sure there are little or smaller gains to be seen now . It is just like comparing Dual core compared to Quad core about 18 months ago. As more and more threads are ran, bandwidth is chewed up or used. So sure one test at time might not show much difference, let's put it to work on more than one thing at time and see what happens?

[qurious63ss]

No I've read every post of this thead thoroughly ... every word maybe twice

I know it will be cheaper as a platform than i7 ... but why it's cheaper than i7 yet performs better than i7 ?

I would say that it depends on the application. i7 is a workstation so it will perform better on those apps. i5 is desktop so it will perform better on desktop apps. As far as price well it's cheaper to fab i5 i.e. die size? yields?

[savantu]

I would say that it depends on the application. i7 is a workstation so it will perform better on those apps. i5 is desktop so it will perform better on desktop apps. As far as price well it's cheaper to fab i5 i.e. die size? yields?

They are identical except I5 has PCI-E and lacks QPI , a small change to the uncore part.