Bit when buying a GPU

[Elseano14]

Hi! I really just got int the pc building thing, but my first build was a success. My father, a long-time gamer, has requested that i do a build for him. So of course, i'm looking into a nice gpu for him. One of my buddies mentioned 'bit' but didn't really know what it real is or if its important. so can someone tell me how bit affects gpu, specifically when it comes to gaming, and if its as important as its memory. I've only got one point of reference, my own GPU, which is a 384 bit-3gb card, so what i'm really asking for is perspective. 

[don_svetlio]

The memory bus aka 128-bit, 256-bit and such is the interface used by the GPU to address the memory. Not a major thing MOST of the times - only the 960 is gimped in that respect currently being a 128-bit card.

[ThatOneRussian]

Basically the higher the bits the better. Thik of it as a highway where the gpu power goes through. You bottleneck it if the bit is small and it cant go too fast. But a larger bit theres more room for the "power" to travel through

[manikyath]

The memory bus aka 128-bit, 256-bit and such is the interface used by the GPU to address the memory. Not a major thing MOST of the times - only the 960 is gimped in that respect currently being a 128-bit card.

also very game dependant at times.

 

mostly related to bad programming

[ZetZet]

Ignore it. Just look at benchmarks.

[don_svetlio]

Ideally you want 256-384-bit buses and 3-4GB of VRAM

[Elseano14]

Ideally you want 256-384-bit buses and 3-4GB of VRAM

Ok, so a 128 bit card would be a bad thing to go for for more modern titles? thank you very much. this site really is the best for this stuff.

[don_svetlio]

Ok, so a 128 bit card would be a bad thing to go for for more modern titles? thank you very much. this site really is the best for this stuff.

а 750 Тi is fine with a 128-bit bus

a 960 needs a 192-bit bus to not be bandwidth-starved.

380 is the example of how the 960 should have been.

[incarnate]

Ok, so a 128 bit card would be a bad thing to go for for more modern titles? thank you very much. this site really is the best for this stuff.

For the most part, yes, 128 but buses are woefully inadequate in this day and age. If the 960 had a 192 bit bus, it would have been an amazing 200.00 card.

With a 128 bit bus, it is merely good.