Laptop i5 is only dual core!

[rumpleforeskin]

Whats with Intels naming scheme, I thought
i3= dual core - hyperthreading
i5= quadcore
i7= quadcore - hyperthreading

Now looking at laptops for my father and realise I dont know what the "i" number actually means.

 

[corkyg]

I = Intel

 

[whm1974]

Look here:
https://ark.intel.com/#@PanelLabel122139

 

[VirtualLarry]

Yes, laptop and desktop specifications differ, both the CPUs, and the GPUs. Thankfully, RAM is the same, a GB of RAM is the same between laptop and desktop. (Although, the form-factor is different too.)

 

[mikeymikec]

I haven't checked all of the latest Intel mobile line-up, but the rule of thumb I've used in the past is that any Intel ix-xxxxU type CPU is 2 core + 2 threads.

 

[jaydee]

I haven't checked all of the latest Intel mobile line-up, but the rule of thumb I've used in the past is that any Intel ix-xxxxU type CPU is 2 core + 2 threads.

The new i5-8xxxU series are now 4/8 (cores/threads)
i5-7xxxU and older were all 2/4 (cores/threads)

There may be a couple exceptions in there (Intel occasionally throws in a wrinkle).

 

[CluelessOne]

Core i laptop has always been dual core since Arrandale (ix-xxxM). Only recently (gen 8) has been bumped to quad core.

 

[ElFenix]

there were desktop i5s with only 2 cores (and hyperthreading and turbo) at one point.

basically the number next to the i tells you where the processor generally lies in the product stack relative to other processors with similar thermals. used to be, for mobile, you'd need a Q in the model to have a quad core.

 

[Seba]

They had even i7 (mobile versions) with only 2 cores.