The most straight-forward answer to your question(although probably not what you wanted to know) is that in the case of graphics cards Radeon HD6990 and GeForce 590 share the throne, although they both cost very much and are very hard to obtain, the latter costs as much as a budget PC.
As for RAM, quad channel configuration for the new Sandy Bridge-E Intel processors(Core i7-3820 - Core i7-3960X) is the best right now.
It depends on what you're planning to do with that computer.
If watching 1080p HD movies is what going to stress the graphics card the most then some built-in graphics cards can handle that.
As for Ram you needn't worry, even 1GB(for win 7) should be sufficient.
If some gaming may be present then you should ask yourself, how much will you spend on the graphics card?
A mid-end 1GB graphics card and some 512MB card should handle most top games at mid-high quality.
And for RAM a Dual-channel 4GB(2X2GB) 1333Mhz configuration is both cheap and sufficient for all your needs.
Depends. If you have only 1GB RAM, the game will lag. If you have a lower end graphics card, it will hardly run or wont run at all. A better graphics card is best but more RAM will help.
You can not convert the RAM that is on the PC to RAM for your graphics card. The only way to get RAM for a graphics card is to buy one that already has RAM on it. The graphics cards that have their own RAM are normally higher end ones that cost about $50-$70 for the cheapest ones.
Only if you have an integrated graphics card that is built into your motherboard can it take advantage of your ram.
Radeon HD 6530d is the better one of the two. it is always better to have a independent video card then the onboard video chipset, because the onboard chipset uses the ram from the motherboard and a independent video card has its own ram to use and never uses the systems ram. so all in all, your computer will run games better with a independent video card then a onboard chipset.
no graphics cards have there own built in video ram The above answer is only partially correct. If a computer had onboard graphics, where there is no dedicated graphics card, then the graphics chip is on the motherboard itself. In this case, it will use the system RAM for memory. This can reduce the total amount available to the system. So if you have onboard graphics (no dedicated graphics card), then a dedicated GPU(graphics processing unit) could in fact increase available RAM. However, the difference is not likely to be large. RAM is cheap. Your best option is to buy more RAM for your system.
No, it's a type of RAM
You have insufficient RAM, even though you have a nice graphics card you need at least 1.0GB RAM or if you are running on Vista, you will need 2.0GB RAM.
Unless you are using onboard (Motherboard) graphics they are totally different
You cannot use normal computer RAM to be dedicated to graphics. The only way you would be able to get RAM that is completely dedicated to graphics would be to buy a video card that has RAM built into it.
Nope it doesn't matter what kind of ram you have in your graphics card as they are used for different things What does matter is what type of slots your computer has. Mine, for example, has slots only for PCI cards and I must buy PCI. You can find out what type of slots your computer has by calling TigerDirect. Start with what type of graphics card your computer can use.
Bring your PC to bestbuy and ask them to install more ram, a better processor, and a graphics card.
Why in gods name would you!!