Independence and the integrated graphics of the questions were

Users questions: The difference is clear to me, I would like to ask is: I met a lot of sets were computers, there are two situations, 1, such as memory 512, and some set of the machine was being eaten memory, also remaining 480 of the memory, that memory is crossed when the memory 32M. 2,512 card memory was later crossed out also Left 504M of memory, that card was eaten 8M. But after I found the use and testing, the second case the set was in much better performance than the first, even if the memory into the first 64M, not as a second performance. Was difficult to second set of solder on the motherboard has some memory? Also How the matter, I do not understand, hope master pointers.
Experts answer: I think is right upstairs, but needs to integrate what is truth. Some integrated graphics is independent of welding on the motherboard, and a number of memory such as sis, but their relatively poor performance. Most graphics cards are integrated in North Bridge chips. No Memory performance than the SIS, but many, such as NVAITINTEL strong, of course, the same chip industry manufacturers display new and advanced and the backward comparison so you may have a lot of access and water, bare comparison is meaningless even memory Comparison of graphics chips, of course, is a bit old before The integrated graphics called the memory capacity is fixed for example 3264, but later integrated graphics are dynamic call memory capacity of desktop applications in general, he called 8M enough (the actual 4M enough) but the big games when he runs the largest can call to 256M, of course this is depends on the actual period Deposit size, if he can call 256-1G 512 he usually calls if 128M
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