Here is the main difference between the two:
R7 260X -> 896 STREAM PROCESSING UNITS (14 compute units)
R7 360 -> 768 STREAM PROCESSING UNITS (12 compute units)
Consider also what AMD officially proposes:
So, an R7 360 is a rebrand of an R7 260, with a small difference in clock and available video memory bandwidth.
The R7 260 is NOT crossfirex compatible with the R7 260x, according to AMD.
By doing the simple math, the safer answer would be: NO, you shouldn't crossfirex an R7 360 with an R7 260x.
Hope it helps.
bummer, shouldnt have bought the 360, so is the 360 crossfire compatible with any other cards ? and also in the chart i can see that the 260x can be crossfire with a 260, thanks for replying so fast man, appreciate it.
You should have gone for an R9 370 or R9 380, if the budget would allow and avoid crossfirex altogether. It's not worth the trouble in my opinion.
See how well battlefront (beta) performs on these cards:
If you are really going to crossfire the r7 360, get the same one. It is the safest route.
And no, the chart only shows an r7 260x being compatible with an r7 260x, just without a bridge connection.