Why you ask?
Bill Gates once said, "Noone will ever need more than 640K." Keep that in mind.
I remember about a year ago, this very same debate was being wrangled about in the 64MB versus 128MB camp. The big issue then was the fact that most 128MB cards used slower memory than their 64MB counterparts. This is why I ended up buying the Gainward GF4Ti4600 - they used faster memory for their 128MB solution. However, this point is fairly moot these days.
Let me get on to the real issue here. I have developed some 3D applications and such, and while I may not be John Carmack or anything, I can tell you, the more memory the better, especially in light of higher resolutions, more AA, and, most importantly, complexity of current games. AGP did a nice thing for the 3D video industry, and gave a large pool of high-speed "virtual" memory to video subsystems. However, when compared to the memory directly on the video card, this AGP memory is slow. VERY slow (32-bit/66MHz as opposed to - Radeon 9800? 128-bit-~500MHz?). Now while the good game houses design their engines for the limitations of current cards, you'll be future-proof with 256meg. But make sure the cost isn't prohibitive.
And finally, just remember, games and graphics are going to get more and more compicated. Bigger more detailed textures, finer mesh detail, etc. All this goes into memory, and you'd prefer it to go in the video card's memory rather than AGP memory.
Just my opinion.
Bill Gates once said, "Noone will ever need more than 640K." Keep that in mind.
I remember about a year ago, this very same debate was being wrangled about in the 64MB versus 128MB camp. The big issue then was the fact that most 128MB cards used slower memory than their 64MB counterparts. This is why I ended up buying the Gainward GF4Ti4600 - they used faster memory for their 128MB solution. However, this point is fairly moot these days.
Let me get on to the real issue here. I have developed some 3D applications and such, and while I may not be John Carmack or anything, I can tell you, the more memory the better, especially in light of higher resolutions, more AA, and, most importantly, complexity of current games. AGP did a nice thing for the 3D video industry, and gave a large pool of high-speed "virtual" memory to video subsystems. However, when compared to the memory directly on the video card, this AGP memory is slow. VERY slow (32-bit/66MHz as opposed to - Radeon 9800? 128-bit-~500MHz?). Now while the good game houses design their engines for the limitations of current cards, you'll be future-proof with 256meg. But make sure the cost isn't prohibitive.
And finally, just remember, games and graphics are going to get more and more compicated. Bigger more detailed textures, finer mesh detail, etc. All this goes into memory, and you'd prefer it to go in the video card's memory rather than AGP memory.
Just my opinion.