how much vram do I need
I'm about to buy a gpu and I don't know how much vram I should get. I want a 7850, and I would need to pay about 20 more pounds If I went for a the 2gb. I'll be playing on a single monitor, no more than 1920x1080.
deerhunter113 said:adimeister said:2gb is enough bro. You meant you'll pay more if you went for the the 4gb? You only need more vram when you game on multi monitor.
I meant that I would need to pay more if I went for the 2gb version instead of the 1gb version.
Your choice really. There are very few games that go above 1gb on vanilla files (no mods). Crysis 3 is a popular exception.
The 7850 with a little OC and 2GB of vram should be able to handle just about anything.
I think vram is not much of an issue, and is mostly marketing.
The amount at stock will be appropriate to the card.
- Best answer
I view the need for graphics vram much the way I view system ram.
You need enough to keep most of what you need in the vram or suffer the performance penalty of refreshing it.
In the case of system ram, a page fault requires a hard drive I/O access. That takes a relatively long time.
In the case of vram, needing something no in vram requires a transfer from system ram via the pcie interface.
The pcie interface, even the older 2.0 version is considerably faster than the sata interface for hard drives.
Thus, not having sufficient vram is a performance issue, but a very small one.
No doubt, more vram is better. But... how much will performance be improved, and at what price?
My take is to use the price difference towards a stronger graphics card in the first place.