How does x16 + x4 run these days?

[arc@css]

Only a small a possibility atm, but I'm Just considering a two card set-up. Does x16 and x4 make it worthwhile, or is x8 x8 still the minimum?

Ta.

 

[Tonester0011]

Edit: I've been wondering this, and was going to do a comparison beetween 16x 8x and 4x with CF etc when my second card comes back.

 

[Gregster]

Good find Tones and shows how little the Bandwith affects from X16 down to X4

 

[arc@css]

Thanks, will give it a view now.

 

[oldestgregg]

Nice. A few of the boys on here have said before its not noticeable buts its always nice to have reference

 

[troops]

Would be even zero difference i suppose with pcie 3.0 cpu/board and cards.

 

[xTommy92]

I have the Z77-D3H aswell and have just posted a thread about getting a new board just to Crossfire two 7950's. This is quite interesting as many people said to me, don't get the Z77-D3H if you are thinking of Crossfiring.

Tom

 

[arc@css]

Interesting.

I'm most concerned about minimum and average fps (my gtx480 delivers more than enough fps at the high end). Although I'm normally inclined to consider and recommend for that matter, a single gpu, something like 7850 crossfire would seem excellent value for money. And, of course, then you have the added bonus of the overclocking headroom they offer.

 

[xTommy92]

Neat, I am just looking in the manual at the moment aswell and when using PCIEX4 slot, only PCIEX1_2/3 slots are unavailable meaning you can still use PCIEX1_1 as a slot for a Sound Card which I have only recently bought!

Tom

 

[arc@css]

That's good news about the sound card.

I'm using on-board sound atm, my sound card bit the dust a while back (or so it would seem).

 

[LtMatt]

I'd be interested in this. With PCI-E 3.0 i expect the performance decrease to be smaller. On PCI-E2.0 x16 x4 i found the performance impact was about 5-15% depending on the game/benchmark.

 

[arc@css]

5-15% on 2.0 is quite a lot less than I thought it would be, so that's good news. If you'd said 25%, I still would have been impressed.

 

[LtMatt]

5-15% on 2.0 is quite a lot less than I thought it would be, so that's good news. If you'd said 25%, I still would have been impressed.

If you check the unigine heaven thread, i posted my 6950 unlocked to 6970 xfire results @x16-x4.

 

[xTommy92]

So there would be no noticable difference in games. I was going to sell my current board and get a another specifically for crossfire but now I might stick to the Z77-D3H and crossfire 7950's. What would you recommend?

Tom

 

[LtMatt]

So there would be no noticable difference in games. I was going to sell my current board and get a another specifically for crossfire but now I might stick to the Z77-D3H and crossfire 7950's. What would you recommend?

Tom

I would get x8 x8 if it was me. X16 x4 is ok, but its not optimal.