It think there is a difference of 40qm ! Lol
Intel core i7-920
Nehalem is the name of the architecture. The Intel Core i7 is a chip based on that architecture.
The best CPU right now is the Intel Core i7
intel core i7
Intel core i7
Intel celeron is the lowest processor Intel offers. Below is the list from best to worst: Intel core i7 Intel core i5 Intel core 2 quad Intel core 2 duo Intel core 2 solo Intel pentium Intel celeron For laptops: Intel core i7 Intel core 2 extreme Intel core 2 quad Intel core 2 duo Intel centrino Intel pentium Intel celeron
No.
Well both of these are good proceesors. But the i7 has 8 cores unlike the quad which has 4. So if you have money I would prefer the Intel i7.
Yes. You can upgrade your Dell XPS 400 Intel Pentium D to Intel core i7.
The current lineup of Core processors includes the latest Intel Core i7, Intel Core i5, and Intel Core i3
The socket type that is required for the Intel Core i7 9xx desktop series is the LGA1366 socket.