multiple cards 4x 4x

[gamerdude1989]

Hi guys

The motherboard i have got, has 2x PCI-E 2.0 lanes.
1 at x16 and the second at x4..

What performance gain/loss would i get from crossfiring and running at 4x?

anyone got any benchmarks for me to see? so i can see for myself?

cheers

 

[biuro74]

If you want to set up multiGPU cards it can't be 2x GTXes 760 as simply it won't work (2 nVidias = SLI which is not supported by your motherboard). You need pair of Radeons to Crossfire.
It depends on Radeons (which models) how big impact you'll get. Because of your CPU I suspect the biggest impact will be with best Radeons (R9 290X) Otherwise - nothing significant as long as you play @ FullHD maximum:

P.S.
I suggest you've changed PSU as well PowerCool is not what your brand new graphic cards want. Look for SuperFlower, Seasonic, Antec, BeQuiet, Corsair, Enermax etc.

 

[gamerdude1989]

Whats wrong with powercool PSU's??
Ive used Powercool products ever since they have been available.
and never had a problem.

My friends i7 4770k pc is powered by a powercool x-viper psu, and his is seriously overclocked. CPU, GPU and RAM, powering lights, watercooling pumps etc. and he has never had a problem..

Heck, my last core 2 duo pc was eventually powered by a £20 street market "500w" psu, and that was core 2 duo overclocked, geforce 9800gx2 GPU overclocked, and 4gb of ram, aswell as a bunch of fans and 3 hard drives... I still have that pc to this day too, and it still has the "£20 cheap ass crap from the market PSU" in it, and works perfectly fine..

 

[bakes0310]

Me personally wouldn't want to have expensive products being powered by a cheap or low brand psu. I think the psu is the most important part when building a pc and I wont skimp on it either.

 

[Marine-RX179]

Whats wrong with powercool PSU's??
Ive used Powercool products ever since they have been available.
and never had a problem.

My friends i7 4770k pc is powered by a powercool x-viper psu, and his is seriously overclocked. CPU, GPU and RAM, powering lights, watercooling pumps etc. and he has never had a problem..

Heck, my last core 2 duo pc was eventually powered by a £20 street market "500w" psu, and that was core 2 duo overclocked, geforce 9800gx2 GPU overclocked, and 4gb of ram, aswell as a bunch of fans and 3 hard drives... I still have that pc to this day too, and it still has the "£20 cheap ass crap from the market PSU" in it, and works perfectly fine..

Because Powercool's PSU in general tends to have VERY low rated output on the 12v rail which the core components (i.e. CPU, graphic card) draw power from. Lots of time their 12v rail output is only around 50-60% of the "total" output (as oppose to 95-100% of the total output on the good brands). People that didn't know better don't read details such as 12v rail output can misleded into thinking their 500W PSU with only 300 rated output on the 12v rate can handle power consumption of 400W on the CPU plus graphic card and overload the PSU unit and making it go bang, thus taking some of the other components with it (have seen horror stories the Powercool PSU taking motherboards along with it to the grave).

Simply put, they are poor quality unit...unless budget is a huge issue, people should always pay the extra and get better brands' PSU. Also PSU performance would depreciate over time...while it might be able to run a PC fine with it's new, a year or two down the line it could die on you and kill your other components as well (due to corners being cut on protection part).