Part Numbers for Computer

[LucaFire]

So, I was asking the Dell what CPU's would be compatible with my PC and they gave me these numbers:
Part numbers: RXHF8 and F3VXR and KR2TG

What are they and how do I find the CPU I'm looking for using those numbers? I've tried searching the Dell website with those numbers but nothing comes up?

 

[saywhut]

For what system is it for?

 

[DelroyMonjo]

F3VXR=Dell SVC PRC HSW I5-4440 3.1 95W
OPTIPLEX 9020 DOGFISH 9 CTO - RXHF8
Dell KR2TG= I5-4570 3.2 86W 4C

 

[LucaFire]

F3VXR=Dell SVC PRC HSW I5-4440 3.1 95W
OPTIPLEX 9020 DOGFISH 9 CTO - RXHF8
Dell KR2TG= I5-4570 3.2 86W 4C

How did you find these as the parts?

 

[ImranKhan1992]

Those are Names of SVC Kits( They mean Spare parts number)
SVC Kit 3W8GD : Processor, Haswell I5-4670, 3.4GHz, 86W, 4C - $326.976
SVC Kit 7KDR1 : Processor, 3.1 GHz, Haswell i5-4440, 95W, C0 - $280.576
SVC Kit KR2TG : Processor, Haswell I5-4570, 3.2GHz, 86W, 4C - $286.4

Search in this site : http://computer-spare-parts.info/catalog/