Hi I'm trying to decide between the 6640 and the 6447 - what are the differences between these models?
1076304
Well, besides the slight differences in the model of processor and other internals, the main difference that would make The $100 difference is the second battery which comes with the 6640. It also has a very nice suede-like case, an external mouse, and a cat-5 dongle and an HDMI dongle. I don't know if the 6447 has any or all of those, but it does not have the 2nd external battery, which is GREAT....it fits on the back lower edge, raises the back about 3/4 inch and extends you battery life without being a bother. Both batteries charge with regular AC cord in one port, first the internal battery , then the external. The external has a light showing % of charge (or remaining amount) in 20% increments. I would pay the extra for the extra battery time. No battery ever lasts as long as the specs say. The laptop with the external battery fits nicely in the provided case (its more like a sleeve, very thin, not bulky...but elegant! Hope all that helps.
1449097
As I recall the 660LM is a slightly older model though the functionality is very similar if not the same. The case should be more water resistant though I cannot quote any specific tests. The retail price of both is the same so any differences must be based on local Amazon pricing.
2169833
I believe the digital display and the vent system of the 5270 is the difference. I have a 5270 and I love it!
1941200
I'm sure this is too late for the OP, but wanted to chime in if I may. From what I found/feel, the PA249Q is the true successor of the PA246Q. The most notable difference is that the 248 is not wide gamut, nor 10-bit capable. I'm sure the 248 is nice, as about everything from ASUS is. However to many professionals, this is likely a deal breaker.
477069
2597LMT has the all features, it looks like, selling for $149.99, brand new. The 2557LMT doesn't include BT. I would buy the most cheapest used. As long as it's in very good condition and has all accessories. This is pretty much what I've done and it works for me.
1665050
The size of the AO756-2641 is a little wider than the D250-1584. I prefer the keyboard from the D250-1584 over the AO756-2641 but other than that, I love them both equally. It all depends on what you use your laptop for and how often you use it. If you need certain memory, the 756 is comparable. If you like the size of the D250-1584, look for something similar to it.
1470618
H6400 = 2014 model, size 40" 48" 50" 55" and upF6400 = 2013 model, size 40" 46" 50" 55" and upBoth models are 3D and one of the main difference is H has Quad-Core compare to F has Dual-Core.Hope this will help your answer....
360003
Great minds think alike; I have also narrowed my search to these two systems and was hoping to find an answer on this board to help me make the decision. MB
2165855
8040's are awesome , that would be my pick over the two! Better wall mounting options.
950773
Pc5300 is DDR2 667 and Pc6400 is DDR2 800, they are 2 different speeds have to check with seller see if picture was posted wrong
833531
hello, no there is no Significant difference between those two. N660 TF will be only Slightly Cooler thats all.
784987
b640 is exclusive to bestbuy. there isnt a chin on the b640 and it also has charcoal-greyish touch of color instead of the red. also, the b640 has an ultraclear screen while the b630 has a semi-matte screen. matte is better for high amounts of light in a room while i think ultraclear provides better color and contrast. some think ultraclear has too much glare, others disagree so it really depends on you.
1514117
Sorry, but is it a 645 or not? I need that video card supports more than one display at same time without inconvenience. So, I saw on dell and nvidia website that 645 is good for it.
1537208
I think CNET might review these soon. In the mean time, you could check their reviews of the 606 and the 1018 as a starting point, as well as Amazon reviews of those products. You can also download manuals for the 607 and 1019 (probably) to compare features and specs.
1952983
I have been using my 6600D with Vista 64 for a year. When I upgraded to Vista Business from the Beta, I found no trouble with my Canon. Photos are extraordinary, and the speed is satisfactory. I prefer the pictures printed at the standard speed; the higher quality takes much longer with no apparent improvement in picture quality. I would upgrade to the 6700D but the 6600 is still working. The best thing about it is the ink tanks are affordable compared to Epson or HP. If you buy the ink at Staples at their online price, it is only $14.25 per tank. (In store prices are much higher, but they give you the online price without question).
261091
I really don't now the differents between the two. I read about the model #52244only and bought it. Sorry Iccan't help you.
788551
I was wondering the same thing so did some digging and found this in one of the reviews "The main difference of the MP640 over the MP560 is a larger 3" LCD, Ethernet connection and print speed."