Will this laptop suit my needs?

Question

Hi my current laptop is not powerful enough. It's a Toshiba Satellite P50-ABT2G22 http://www.pcworld.com/product/pg/1235609190/detail
*Intel® Core™ i7-4700MQ Processor (6M Cache, up to 3.40 GHz)   
*8GB DDR3L 1600MHz (4GB + 4GB)
*1.0TB (5400rpm); Hybrid 8G Serial ATA hard disk drive  
*2GB GDDR3 NVIDIA ® GeForce® GT 740M with Optimus™ Technology
I make 1080p music videos with a lot of animation and heavy effects, which are usually around 6 minutes long. With my current laptop when about 2-3 minutes of the video is completed, RAM previews and updates in the composition monitor when changing things slow down to the point that i can't really finish the video. Each frame takes like 3 seconds to load. So i guess i need a new laptop.I'm pretty sold on MSI's Dominator pro 888, I just wanted to get some approval. Do you guys think this will get the job done? My only concern is that the processors are very similar. But with 4x more RAM, much better GPU, and the SSD, I'm hoping I'll be able to make my 6 minute, effects heavy, videos extremely smoothly, with no lag. What do you guys think?
http://www.xoticpc.com/msi-gt70-dominatorpro888-p-6941.html?wconfigure=yes
4th Generation Intel® Haswell Core™ i7-4800MQ (2.7GHz - 3.7GHz, 6MB Intel® Smart Cache)
NVIDIA® GeForce™ GTX 880M (8.0GB) GDDR5 PCI-Express DX11 w/ Optimus™ Technology
32GB DDR3 1600MHz [SKU-844AP] (Dual Channel Memory (4x8GB SODIMMS))
1TB HDD + 384GB SSD

Answer 1

There is little way to forecast what will happen until someone tests it.  I just checked on this laptop and while I can overclock the GPU memory (GTX 765M) from 1000 MHz up to 1516 MHz and the results of our PPBM7 GPU assisted MPEG2.DVD test dropped from 78 seconds to to 57 seconds which is an appreciable improvement.  I think that on the GTX 880M they probably had to limit the power consumption for battery only usage to meet the laptop manufacturers specifications. 
With this in mind and knowing that any real editing has to be done with the AC power brick all you will have to do is overclock the memory clock on the GTX 880M and you can boost the memory bandwidth accordingly.  It is a very easy operation.  I use EVGA's Precision X and here is what it looks like.
Here is GPU-Z showing the operating memory clock now at 1516 MHz rather than the stock 1002 MHz and accordingly the new memory bandwidth is 97 GB/s rather than my normal specification of 64 GB/s.  If the GTX 880M has the same headroom for overclocking, you will be very happy with it.
But even so check with Eric at ADK on their 8600HW or 8600TB because they are real experts on video editing and they do include lifetime tech support and can really fine tune the configuration.