2GB vs 4GB GTX 680M

This may have been asked, but is there really a reason for the memory difference? I've only seen the 4GB option offered in Clevo models so far. No price difference, and no MX suffix like the 670/675 rehashes.

 

From what I understand, more video ram will allow you to game at higher resolutions with greater stability. Just an FYI, 2 GB is plenty for any game. BF3 running on ultra settings in 1080p does not even use all of it. I suppose if you have six monitors running at 2560 x 1920 you could use the extra video ram, otherwise, there is no difference in performance except in these extreme situations.

 

It looks good on the paper

 

Perhaps it could help slightly if you are running some massive high res texture mods for certain games, but for most games, I doubt you will see any difference between 2GB or 4GB VRAM.

If there is no price difference, however, go for the 4GB.

 

No way man, the 680m has 4GB GDDR5, 680mx has 2GB, the 680m is TWICE as powerful as the 680mx

 

Well said, it's not like mem Well said, it's not like mem chips are cheap.

 

The desktop GTX 680 card has 2gb memory stock (although a few versions come with 4gb). There have been many tests to see if the 2gb on the desktop model cripples the card. Even with a triple monitor setup, it is typically not a problem.

The GTX 680m has significantly less power and memory bandwidth making anything over 2gb unnecessary. The extra memory only costs more and adds more heat to your laptop. I would rather have the 2gb version personally.

 

I believe the OP is saying the price is the same for both options.

However, this is the first I heard that additional VRAM can add heat to your laptop - are you sure about that?

 

Doesn't the Dell GTX680M 2GB throttles when overclocked? Clevo's 4GB version doesn't throttle until 90C tho.

 

Clevo's throttles at 85C.

 

I guess it depends on the card, mine does that at 90C with MSI's 1V OV bios

 

Well, ok, it all depends on BIOS, effectively making it an MSI card.

 

HT, didn't you use saltius's 1.037v vBIOS which is based on the MSi?

 

Let me make it simple.

The higher the resolution, the more vRAM is needed.

 

I did but not any more.

 

What vBIOS are you on right now?

Still having doubts about buying a 680M

 

If I had to guess. He has the stock vBIOS.

Wait until the 680MX releases, then consider buying a 680M: due to 2 reasons: cheaper price and more possible doubt

 

LOL. Wait for 680MX and then 680M quality will likely be greatly improved.

Yes, back to stock, well stock with 900MHz GPU and 2200MHz vRAM.

 

But isn't the 680MX an all-in-one desktop part? Not for the laptop?
The discussion thread says that the laptop MXM slot can't give enough power to the card.

 

That's not 100% true.

 

Considering how high people have overclocked and overvolted their 680M's (myself included) the MXM slot will with out a doubt be able to run the 680MX at least at stock clocks without breaking a sweat. I haven't run into any power issues with my M17x R4. Maybe the Clevo models are different though.

 

Nah, they're no different. People just need to acknowledge that the 100W imitation doesn't exist.