Can I upgrade my dual core processor to i5?

The simple answer: No, you can’t. You’ll need a whole new computer. The complex answer (in Intel land; AMD is a bit different): A motherboard will not support a newer CPU without a firmware (BIOS/UEFI) update.

Can I upgrade dual core to i7?

Yes, You can. Keep in mind: 1. Processor Socket type and socket type supported by new Motherboard.

Can I replace a Core 2 Duo with an i7?

Because the slot types for a Core 2 Duo(LGA775) is different from a Core i7 (LGA1136/1366) slot, you cannot simply replace the CPU. You will have to replace the motherboard as will.

Can I upgrade my Intel Core 2 Duo to quad?

If they have the same socket type (i.e. Socket 775) then a Core 2 Quad should work in place of a Core 2 Duo. At worst it may be a bios upgrade is necessary but other than that it should just work. Search your motherboard’s site to verify that it will work.

Can I upgrade my dual core to i3?

It depends on the socket, chipset and motherboard BIOS compatibility. But generally speaking, if they’re from the same generation (or microarchitecture), an upgrade is possible. For example, a Skylake/Kabylake Pentium G series processor can be exchanged for an i3 because they’re essentially the same chip.

What is the fastest Core 2 Duo processor?

The fastest Core 2 processor is the X6800 Extreme, which is separated from the regular Core 2 Duos only by its 2.93GHz clock speed and a 10W higher TDP—oh, and by almost half a grand.
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Intel’s Core 2 Duo and Extreme processors.
Model Core 2 Duo E6700
Clock speed 2.67GHz
Bus speed 1066MHz
L2 cache 4MB
TDP 65 W
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Jul 14, 2006