i want to download the vga driver
Don't waste your time to find f**king HCL driver. Buy another laptop. It is worst company.
The meaning of the acronym C2D is generally Click to Download but it can also have other meanings. Some examples are Close 2 Death (in gaming), Concepts to Design (various organizations) or Core 2 Duo (processor from Intel).
Since the only difference in your detail - is the amount of memory (4GB against 2GB) - go for the 4GB machine. The extra memory will help Windows 7 run faster.
2d is incorrect
There's really not that much you can do. This laptop comes with a VERY poor quality graphics chipset.
The Intel C2D E8400 will be more than adequate for rendering under Bryce.
There are many desktops available that would be suitable for the business setting. Some of the best options are HP 8000 Elite Business SFF Desktop and the Dell Precision T3400 Tower C2D.
Core 2 Duo processor has 2, 3, 4 or even 6 MB Cache, depend on the product code. The cheapest C2D has 2 MB cache. Compare to Pentium Dual Core, which has 1 MB cache, you might think, C2D is a better choice. From various benchmark, having extra 1 MB cache might improve the performance of the CPU up to 10%, depend on application. However, C2D currently running on 800, 1066 and 1333MHz FSB. Compare to Pentium Dual Core, it is limited to FSB 800 only. This limitation is an advantage for Pentium Dual Core if you want to overclock it to 1333 MHz FSB without much problem, since most of current mobos run at 1333 MHz. For most users who do not care about overclocking, having faster FSB might improve their system responsiveness.
According to the website, C2D is not supported. http://www.intel.com/support/motherboards/desktop/d945gnt/sb/CS-026630.htm
Check with the motherboard processor compatibility sheet of the motherboard you have first. A BIOS update may be needed for your current motherboard.
This processor will play a big part in playing top end games yes but you will need a good graphics card also.
It depends on the configuration of the Laptop (and also the version of Adobe Photoshop) you are using. If the processor is Dual Core or C2D, with 2+ GB of RAM, then it should be fine to run Photoshop CS2. Anyway, Photoshop and other multimedia tools are processor & memory intensive programs, and also run a lot of background processes so the system should be a bit slower.