doc. josh wrote:
Bertster7 wrote:
doc. josh wrote:
i need to save up another 600$ 2 but the mobo and 2 cupus then!!! IS INTELS QUAD CORE ALL ON ONE PROCESSER i could run quad sli with 8800GTX on this mobo but i will need a 3000 WATT PSU
That's so untrue. There is no way you'd need a 3000W PSU. You'd need about half that (1500, probably less), absolute max.
The Intel QX6700 Core 2 Quadro is all on one die. It smacks the FX-70 chips all over the place in the benchmarks.
Which motherboard is it that you're getting that will support Quad SLI with 8800GTXs? The 680i chipset does NOT support 3x PCIe 16x, it supports 2x PCIe 16x and 1x PCIe 8x. I haven't seen or heard of any motherboards that support 4x PCIe 16x. I'd be interested to see it, but I'm highly dubious. To my knowledge there are no systems that have a 64x PCIe bus and it seems unlikely to me that such a board exists yet, if such a board does exist I#d be interested to see it. Another point is that the 680i chipsets PCIe bus reaches saturation point at 32x, if you run 2x8800 GTXs in SLI there is no bandwidth remaining on the PCIe bus for the 3rd GPU.
there is 2x PCI-E ports and 2x 8x on the quad core mobo 4 amd so if 2 8800 in sli needs 1000WPSU 4 will need more but quad slis with 8800GTX but there is not 4 16x 4 the G80 but u can use 2 4 physics if u wanted could you amagin the framrates just wow any way i dont have 4000$ to spend on 3 more 8800 and a new mobo. i never said a 64x PCI-E slot i said 16x slot look at the dam link to the mobo below it has 4x pci-e slots they are 16x
http://www.newegg.com/Product/Product.a … 6813131146
Impressive looking board. Shame it's for the rubbish 4x4 series. I still doubt you can run 4 8800s on it. 4 GPUs, fine - but not 8800s, for that you really would need a 64x PCIe bus (4x16).
I suppose 1000W could be a power requirement for SLI 8800GTXs on a power hungry FX-74 CPU (which costs twice as much as the Intel equivalent, uses twice as much power (more than 400W) and runs significantly slower - that may change under Vista though (as it can identify between physical CPUs and CPU cores leading to more effiecient multi-threading)) you wouldn't double that for quad SLI, because a large proportion of power consumption is caused by the CPU.
In answer to one of your earlier points, you should get 4 sticks of memory if going for a setup like this. This is because each CPU has 2 DIMM slots dedicated to it. You will want to run your memory in dual channel mode on each CPU and that will improve your system performance - though still won't match the performance levels
you would get from a QX6700 for half the price (
http://www.tomshardware.co.uk/cpu/chart … ;chart=169).
I don't know much about the PCIe bus for the 680a chipset, but for the 680i it doesn't run fast enough to get any benefit from a 3rd card dedicated to physics if you are running 8800GTXs in SLI.
Last edited by Bertster7 (2007-01-07 12:30:38)