That's merely the Service pack talking, it's not actually used. Well, so far as I've been told and learnt in any case. I'm not going to out and out deny the possibility, because I never designed Windows or anything like that. It might have something to do with the limit of 32 bit integers, no idea.Nutcase said:While it's true that 32-bit XP and 32-bit Vista are both limited in how much memory they can use, the limit is dependent on your hardware, not a fixed 3GB. As a rule of thumb, the amount of usable RAM is 4GB, minus the amount of VRAM you have, minus a small additional amount. My 32-bit Vista box with 512MB VRAM allows me to use 3.25GB. If you had a 1GB graphics card, you couldn't fully use 3GB of RAM; SLId 1GB graphics cards, you couldn't fully use 2GB.Aesthetical Quietus said:If you are talking specifically about 32 bit systems(and it sounds like you are), I'm going to have to debate you on that point. While it is true that Vista will recognise 4GB of RAM, it is limited just as XP is to 3 GB, 32 bit architecture can not use the 4th and final GB of RAM. Vista's recognition of 4GB of RAM was much hyped, but it was never to be, it handles that final RAM the same way XP does, it doesn't and allows it to passively speed your system up. [Sorry if I misinterpreted you]
The price of regular DDR2 memory is insignificant now, and I think there is a potential speed benefit for having symmetric memory modules (for dual channel mode)? Finally, you might switch to a 64-bit OS in the future. All things considered, I consider getting 3GB at this point in time to be nickle and diming. If a ready-made machine configuration with DDR2 has 3GB then I expect it to cut corners on other things as well and therefore not be worth buying.
Anyways, you are correct, there is a boost for having symmetrical models, and it's not so much a boost as it is a major slow down without it.[As in if you only have 1/2 or 3/4 slots filled. My point wasn't so much that you should aim for a laptop or whatever with 3 GB of RAM, or anything like that, my point is that you'd be better off to go with an 64 bit OS, tha with a 32 bit if you are running 4 GB's of RAM, because the afore mentioned restrictions on 32 bit OS's and RAM.