Looking to buy an 8087 confused about all the models

[pagefault]

Hi all,

I am looking at add a 8087 co-processor to my XT system. It currently has a NEC V20 in it running at 4.77mhz. I notice that there seems to be a huge variety of 8087's that were produced in various clock speeds and revisions. Is there like an ideal one to get for a system like this or it just doesn't matter they will all work similarly.

Thank you.

[PeterNC]

Does not matter. A 10MHZ 8087 will run in step with the CPU @ CPU speed. Also: unless you have software that utilizes the FPU it is just socket filler.

[Ole Juul]

Also: unless you have software that utilizes the FPU it is just socket filler.

I seem to recall there were only a few programs that actually used one of those.

[modem7]

I am looking at add a 8087 co-processor to my XT system.

The information at [here] may assist.

[BigAlUK]

I seem to recall there were only a few programs that actually used one of those.

Turbo Pascal 2.0 being one of them (from 1984 onward). It was a big thing for them back then!

[Stone]

I have a boxed 8087 with manual if that's of interest. It lists ~ 150 programs that can use this coprocessor.

[pagefault]

Thanks for the replies all. I relise not a lot of software will use it I just wanted to add one for the sake of being able to, they are inexpensive and would be a decent addition to the system.