330W or 660W AC Adapter for 980M SLI

[Steven Mal]

I'm considering a Eurocom X8 with 980M SLI and the sales rep I'm talking to says I'll need a 660W AC adapter instead of a 330W adapter for 980M SLI. I understand that SLI consumes extra power but both the MSI GT80 and the Sager NP9377 from xoticpc.com come with 330W AC adapters, without an option for a 660W AC adapter. Is there any reason why? Should I spend the extra $245 for the 660W AC adapter or will the 330W AC adapter be sufficient for 980M SLI? Thanks.

 

[legoboye]

the 330 watt adapter might be enough but there wont be any headroom for power then. each 980m consumes 100 watts, and the processor consumes about 50 watt and the mobo needs about 30 watt maybe including hdd and ram. about 280 watts out of 330 watts. so its up to you, bust first I would try to see if the 330 watts adapter works and is stable for heavy workloads and uses. (max power draw) and if that isnt stable try to get a 660 wat adapter then.

 

[Steven Mal]

Ok, thank you. Right now I'm considering the Eurocom X8 configured with

120Hz display
CPU: i7-4710MQ OR i7-4810MQ
GPU: GTX 980M SLI
16 GB RAM
SSD: Micron/Crucial M500 480GB
HDD: 1TB 7200rpm

I've never overclocked before and I don't plan on it but I want to make use of my 980M SLI so do I NEED to spend the extra $245, if I'm not going to be overclocking? I've never used a dual AC adapter either. I'll probably end up getting the 660W but I just want to be sure.

TLDR: How would the system perform with a 330W AC adapter?

 

[legoboye]

Ok, thank you. Right now I'm considering the Eurocom X8 configured with

120Hz display
CPU: i7-4710MQ OR i7-4810MQ
GPU: GTX 980M SLI
16 GB RAM
SSD: Micron/Crucial M500 480GB
HDD: 1TB 7200rpm

I've never overclocked before and I don't plan on it but I want to make use of my 980M SLI so do I NEED to spend the extra $245, if I'm not going to be overclocking? I've never used a dual AC adapter either. I'll probably end up getting the 660W but I just want to be sure.

TLDR: How would the system perform with a 330W AC adapter?

Well you're never gonna overclock on a laptop, well that is what I recommend.

The system would perform good as long as the power draw isnt over 330 watts.