It will probably be ok, however it is not a good PSU. HEC OEM, old old old model, not even 80+ certified. It probably won't murder your GPU or anything, but definitely don't try to load much else on it.
Well, I've got two of them, and had zero issues with them. One is running perfectly fine with two heavy power GPUs, as linked above. For the price I paid for mine, I think they're very hard to beat.
They're still a quality PSU, they're not like the crappy CIT or ACE things that are £20 for a 750W.