whenever there's a big new graphics card release there's always like a feeding
frenzy as Gamers try to get their hands on it so that they can blow away dudes
in crisper detail and at higher resolutions than ever before but while
the performance of the graphics processor or GPU itself is often the
most talked about aspect of a new card the amount of video memory or vram on a
card can have a big effect on just how high you can crank up your settings
but while gpus or Graphics processors have been updated and re-updated pretty
regularly over the last few years not much has happened with vram recently
we've had the same old gddr5 memory
hanging out on our cards for over seven years but the next big thing in vram is
finally here I'm talking of course about high bandwidth memory or hbm so what
exactly is it how is it better than older vram technology and most
importantly is it actually going to make a difference in your games well just
like any other type of vram hbm performs functions like keeping rendered frames
in storage in a frame buffer no not that kind holding textures to make everything
on screen look realistic and storing crucial information for lighting and
other effects in short it holds the information that your GPU needs to act
upon to push an image to your monitor but although hbm serves the same base
basic function as other types of vram the way that it's actually implemented
on your graphics card is very different for starters gddr5 and its predecessors
require dram chips attached to the PCB
spread out around the processor and the more memory you want and the higher
speeds you want the more chips you need to plunk on there which combined with
the traces for data and power to all those chips take up a lot of space on
the car hard and increased manufacturing complexity and therefore cost hbm solves
these problems two ways number one the vram is now directly attached to the GPU
package meaning that hbm requires no more space than what's already normally
taken up by the GPU two hbm uses 3D RAM
dieses that are stacked on top of each other and that communicate using tiny
interconnects called through silicon vas or tsvs which are called that since they
physically go through all the Stacked layers at once kind of like a toothpick
through a giant club sandwich and while you can't eat hbm like you would a Monte
Christo these changes have the potential to give you some positively delicious
results while gaming so the chips themselves have a much wider data
interface that combined with stacking the chips gives you these little well
Stacks that can move up to 256 gabt of
data per second which means that a graphics card with just four stacks of
hbm could have memory throughput of a full terabyte of data per second which
will become increasingly important in the future as more and more non-gaming
applications like Adobe Premiere for example start leveraging the graphics
card for compute and as the resolutions that typical Gamers want to run at
increase not to mention that there's things like multi 4k monitor setups that
are becoming cheaper and more popular
all of which will be easier with more memory bandwidth okay then lonus so how
do I hop on board this hype train well
hbn is only currently available on AMD's topend Radeon R9 Fury series but the
rumor mill figures that NVIDIA's upcoming Pascal graphics cards will
feature the technology and as we all know the high-end today is the
mainstream of tomorrow so within a couple years we should all be able to
have enough memory bandwidth to choke a horse speaking of choking horses or nope
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