Originally Posted by Kinaesthetic
Agreed. It does suck that Nvidia skimps out on reference board designs compared to AMD. But if you look at it from a margins perspective, it makes sense for a business to do so. If you can create a design that delivers the specifications you had laid out. but with the minimum that you will need to reach those specifications, then you are increasing your margins on each product sold. AMD could very much not design such overkill and increase their margins. So from a business standpoint, I don't understand why they would go for overkill. But from a consumer standpoint, I do see your point.
Their profit is our loss in this case.
I'm not saying that every GPU needs to have a power delivery design comparable to an MSI Lightning or EVGA Classified, but I think that something comparable to what AMD offers would be desirable. It's possible to have good margins and design a solid PCB. It just leaves a bad taste in my mouth. It also makes using a third party PCB a must.
They have basically left no margin. In the case of the GTX 570, the Mosfets were known to blow at stock!
Originally Posted by mtcn77
What good is a 600A power framework on a 110 watt gpu? Is it compensatorially built-in for temperature gradation losses/wear-and-tear over time?
A power delivery with some margins for more power is a win. The VRMs run cooler and this can be good during the life of the GPU.
Imo, how MSI has designed their power delivery on GPUs is pretty solid.
Nowhere near the 75W, even on spikes.
I"d imagine that their other custom series boards like the Hawk are similar. I'm hoping to see a rx 480 Hawk (or a 480 refresh with 16 RBEs).Bottom line: Wait for custom AIB GPUs.
Originally Posted by ZealotKi11er
Just noticed that my MB has a OC-PEG connector. What is the use for it? Will this connector save my PCIE slots?
From Gigabyte's marketing:http://www.gigabyte.com/fileupload/microsite/304/images/oc-features.html
OC-PEG provides two onboard SATA power connectors that provide more stable PCIe power when using 3-way and 4-way graphics configurations. Each connector uses power from a different phase of the power supply, helping to provide a better, more stable graphics overclock. The independent power inputs for the PCIe slots helps to improve even single graphics card overclocking. For 4-way CrossFireX™, users must install OC-PEG to avoid over current in the 24pin ATX connector.
I assume that when there's more than 2 GPUs, that probably draws more current from the 24-pin connector on motherboards so the OC PEG provides some relief because it adds a second source of power.
Most high end boards have some similar feature - for mine it's molex, but same idea. Others are PCIe power connectors.