>I need to purchase or Upgrade my PC.Currently I have DUAL Core 1.86 GhZ and 1 GB RAM. an 80 GB Hard Disk and XP opertaion system
>with My requirement is:-
>
>1. currently I have a VFP application that takes around 2 Hours for Data processing (Makes Changes in text files) for around 80000 files.
>
>2 After the files are being changed, they are to be converted into other format using PS2PDF tools like, that takes another 4 Hours,
>
>Thus my total times comes around 6 to 6 HRS. I need to drastically cut it down. I am planning to buy i7 4770k Processor, 8 GB RAM, and 1 TB HDD, 2 GB Graphics card with windows 7 or 8,
>
>Kinldy Guide what would be best configration. Also Guide...
>
>1, Should I go for Laptop or Desktop ?
>2 Assembeled or Branded One ?
>3 If Brabded, which Brand and where to Buy online?
>4 Are there any Cheap and relaible sites from where I could directly purchase spares or compete Desktop or Laptop.
>5 What is the difference between BOX and Tray i7 4770k as there is a difference of rate in the two.

Before you get a new computer, watch Task Monitor while your app is running. If one or both of the CPU cores is running at 100% utilization you need a faster processor. If they are not, then you are limited by something else, most likely disk. As Denis points out a solid state disk (SSD) has much higher performance than a magnetic drive.

The above assumes you are processing on your local computer, and not processing files on another computer such as a server. In that case the limiting factor might be network speed and you might not see much improvement going to a new, faster computer.

1. Laptop vs. desktop - your choice. The great benefit of a laptop is mobility. Per unit of performance, laptops are more expensive. Typically the absolute fastest parts are only available in desktops e.g. the 4770K processor you mention. Also, if you are thinking about overclocking to get maximum performance, desktop is your only option. Ultrabook laptops can be very fast but they are expensive. If you get a laptop without an SSD then the hard drive is typically quite slow. Desktops can be upgraded more easily (more RAM, faster graphics etc.)

2. Assembled vs. branded - either, but get something local with a decent warranty. Assembled - you can specify the parts. Branded - sometimes use cheap parts internally

3. Branded purchase online - pick one that has a good warranty with warranty support in your region

4. There are thousands of sites, pick one that can deliver to your region. You will have to do your own research about reputation/reliability etc.

5. Processor tray price is bulk price per unit for bare processors when purchased in 1,000 unit lots ("trays") by computer builders. That price does not include heat sink, fan and thermal grease. A boxed processor is a single processor for retail sale, and typically includes the heat sink, fan and thermal grease.