I've been running a Radeon 4850 512MB for some time now and see that it's still considered a good performer. Is it possibly to bump it up to 1GB of memory?
I've considered running it in crossfire, but wasn't sure if it would have to be another 512 or not. The memory is holding me back in some games. The other concern was heat, this sucker runs hot and the thought of two makes me sweat, even with great case ventilation.
well unfortunately, there is no way, that i know of at least to increase the memory, maybe there is some crazy mod out there. As for running in crossfire, you can use a 1gb card to crossfire it but it can only use up to 512 mb of memory on it.
In crossfire or sli both cards have the exact same date, in both cards memory, so the 1gb will only be able to use the 512mb.
So if you'd want to increase your memory, you'd have to buy a new card
That's the thing, in games like GTAIV it seems that 512 of video memory hold you back from better textures, so even in crossfire with my current card, I'm still held back in that way despite the extra grunt.
Yes ultimately it'll hold you back, at higher resolutions and more detail, the gpu core can still do the work,
unfortunately once you run of vram, it moves to system memory, which is several times slower, so if your running a pretty high resolution monitor, you may want to eventually invest in a 1gb or higher card, but i wouldn't do that unless you go to at least 5850 so at least you already see an increase in performance, if you go with something like the 1gb version of the 4870 you'll see additional detail/performance in a few titles
The vram doesn't add together but only mirror, this is due to DirectX and the need to share texture data. The old 3DFX did have vram doubling but not in full. So your best choice is get another 4850 512mb edition and forget about any thing else or purchase something much better like a 5830 or a 5850 but that is up to you to decide.