Issue
My requirements are:
1. High on graphics so that designs can be easily and comfortably viewed.
2.High processing speed. This is important requirement as once you install designing software, computer becomes drastically slow.
3.Should support designing software like ANSYS, CATIA, PRO-E etc. (at least PRO-E.. I am loving it 😀 )
For this, I guess DELL laptops are best (any other suggestions?)
1. This is tricky and make a huge difference to your budget. If you want a machine for designing stuff and require stuff like advance 3d rendering; computer modeling you might have to go for a laptop with high-end graphics card. But if you're buying a machine only to 'view' and create simple designs; you should do fine with any laptop with a 512 - 1 GB graphics card.
2. Processing power is highly overrated and I don't see any computer using even 50% of the processing power of today's laptops. I asked one of the laptop retailers how'd Intel I3 and I5 make a difference to my computing experience; he said I5 will make it faster. Actually any regular processor is more than enough for your regular computing. The difference is noticeable only when you run computer games on computers that don't have dedicated GPUs. If you're going for a laptop with GPU, I think any laptop will suffice your processing needs.
GPU's are designed to take off load from the CPUs for heavy graphics computing and they work parallel to each other. If you're going for GPU, I'd recommend not stressing too much on higher-end CPU. However, it all depends on your needs as I mentioned in #1 above.
3. You should pay attention to the software/hardware requirements of the software you want to install. You can get this information from official websites of these software. My best guess is you should do fine with: Min 4GB RAM, 512/1GB GPU, 500 GB HDD and any choice of processor that is compatible with the rest of configuration.
I'd recommend buying it from DELL Online because they let you configure your machine. If you're not a Dell Fanatic, go with a readymade configuration from #-Link-Snipped-#. I've always had a good experience of buying from them; except for 2 day delay in delivering a book. Otherwise FlipKart's service is quite good.