HD7750 Crossfire?

**IMNOPRO** · September 9th, 2016

So, my rig has started showing its age in the last year or two and I've been considering upgrading it. But my budget is super low right now and I'd like to salvage as much of my old parts as possible. With that in mind heres my current rig specs followed by the actual question:
Core i3 520 2.93 GHz on an intel dh55hc mobo
8 gigs of ddr3 ram (4+2 @ 1333MHz and an extra 2 at 1600Mhz) (I know

long story)
Sapphire HD7750 1Gb DDR5 GPU
450W PSU included with case
Now my question is how much performance can I get by crossfiring two HD 7750 GPU's. I heard they scale well together. Also where can I get a new mobo for my i3 cause I fried the onboard audio by using the wrong PSU.
I saw the pricing for GPU's right now. They are really cheap considering how much they used to cost. But I need to upgrade my whole system if I'm gonna get a new gpu to avoid bottlenecking and just in general as part of the upgrade and that will cost more than I can afford right now.

**furiousTaher** · September 9th, 2016

terrible idea...

for core i3 1st gen u can get r9 270 at... i dont know... maybe 9k or less? or maybe cheaper card like 660 at less than that.... or 7850. but core i3 first gen will bottleneck all these gpus... in some games slightly some games heavily.