Memory bus size vs speed

[jjohnthedon1]

What's more beneficial for example

980ti having a bigger bus but only 7ghz speed vs 1080 having smaller bus but 10ghz speed ? 

What's the difference between bus size and the speed it runs at and how does it affect gaming please ? 

Edited September 26, 2016 by jjohnthedon1

[Guest]

 

In gaming 1080 will be better in every scenario possible.

[jjohnthedon1]

Just now, dexxterlab97 said:

 

In gaming 1080 will be better in every scenario possible.

Yes that's exaterly what I asked is the 1080 better than a 980ti

[Enderman]

More is better for both.

Bus width is the number of lanes on the highway while speed is how fast cars are moving.

 

If you increase the speed, you don't need a huge bus.

Also nvidia has improved their memory compression algorithms to reduce the need of huge bus width.

[jjohnthedon1]

2 minutes ago, Enderman said:

More is better for both.

Bus width is the number of lanes on the highway while speed is how fast cars are moving.

 

If you increase the speed, you don't need a huge bus.

Also nvidia has improved their memory compression algorithms to reduce the need of huge bus width.

So what would be more beneficial 10000 bit bus at 100mhz or 

100bit bus at 10000mhz

[Enderman]

1 minute ago, jjohnthedon1 said:

So what would be more beneficial 10000 bit bus at 100mhz or 

100bit bus at 10000mhz

Idk, I've never tested it, and there are no cards that exist with those specs to find out.

 

What you should be paying attention to is the performance benchmarks that reviewers post online. What number shows up in the specs list is irrelevant.

[Guest]

Just now, Enderman said:

Idk, I've never tested it, and there are no cards that exist with those specs to find out.

 

What you should be paying attention to is the performance benchmarks that reviewers post online. What number shows up in the specs list is irrelevant.

It's like when people say more clock speed on cpu is better or more core is better.

 

 

[Citadelen]

I'm pretty sure a factor of total bandwidth is actually the size of the bus its self. Thus two cards having similar bandwidth while having different bus sizes.

[jjohnthedon1]

Ok I'm not stupid I just want to know how they each indavidualy affect gaming

i no how to tell which card is better, and I'm not looking to buy a new card I just want to no how the bus and the speed affect gaming please

[jjohnthedon1]

Like for example 980ti 384bits X 8ghz(oc memory) = 3072

 

1080 256bit X11ghz(oc on memory) =2816 

 

is is it the 980ti better in memory bound situations excluding vram limitations 

[Hunter-97-G]

980 Ti has 336GB/s with its 384 bit bus and 7gbps G5 memory.

1080 has 320.3GB/s with its 256 bit bus and 10gbps G5X memory.

 

Pascal has additional bandwith build onto the architecture so I'd say they have around the same bandwith.

 

 

[Drak3]

Bus width and memory speed aren't inherently going to make a difference by themselves. They work together, and it's the subsequent teamwork that makes the difference. Changing the speed will make a difference in theory, but there is a limit to how much benefit there is before the GPU can't use the additional speed, and it does have to contend with the limit of capacity it has, such as AMD's Radeon Fury, Fury X, and Fury Nano's meager 4GB.