GeForce GTX 970 Design Flaw Caps Video Memory Usage to 3.3 GB: Report

sixer9682

sixer9682

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Well, I guess the 970's not such a good deal after all. Check this out:

It may be the most popular performance-segment graphics card of the season, and offer unreal levels of performance for its $329.99 price, but the GeForce GTX 970 suffers from a design flaw, according to an investigation by power-users. GPU memory benchmarks run on GeForce GTX 970 show that the GPU is not able to address the last 700 MB of its 4 GB of memory.

The "GTX 970 memory bug," as it's now being called on tech forums, is being attributed to user-reports of micro-stutter noticed on GTX 970 setups, in VRAM-intensive gaming scenarios. The GeForce GTX 980, on the other hand, isn't showing signs of this bug, the card is able to address its entire 4 GB. When flooded with posts about the investigation on OCN, a forum moderator on the official NVIDIA forums responded: "we are still looking into this and will have an update as soon as possible."


http://www.techpowerup.com/209205/g...caps-video-memory-usage-to-3-3-gb-report.html
 
Who uses a full 4gb of memory anyways? Isn't that more for game developers and shit? Still I get the point.
 
Chocolate_Ch3rry said:
Who uses a full 4gb of memory anyways? Isn't that more for game developers and shit? Still I get the point.
Click to expand...
Running a high end game like AC Unity on ultra with all the settings maxes out. That will do it. I'll check and see where my vram Caps out when I get home.

Sent from my Nexus 5 using Tapatalk
 
Yea, I think with BF4 if I'm not mistaken it's using a little over 2gb on my 970. Could be wrong though..
 
Skyrim can easily hit 4GB if you're not careful which mods you install.
 
http://www.dsogaming.com/news/nvidia-issues-official-statement-regarding-gtx970s-vram-usage/

As NVIDIA’s forum moderator ManuelG claimed:
“The GeForce GTX 970 is equipped with 4GB of dedicated graphics memory. However the 970 has a different configuration of SMs than the 980, and fewer crossbar resources to the memory system. To optimally manage memory traffic in this configuration, we segment graphics memory into a 3.5GB section and a 0.5GB section. The GPU has higher priority access to the 3.5GB section. When a game needs less than 3.5GB of video memory per draw command then it will only access the first partition, and 3rd party applications that measure memory usage will report 3.5GB of memory in use on GTX 970, but may report more for GTX 980 if there is more memory used by other commands. When a game requires more than 3.5GB of memory then we use both segments.
We understand there have been some questions about how the GTX 970 will perform when it accesses the 0.5GB memory segment. The best way to test that is to look at game performance. Compare a GTX 980 to a 970 on a game that uses less than 3.5GB. Then turn up the settings so the game needs more than 3.5GB and compare 980 and 970 performance again.”
NVIDIA has also shared the following graph, showcasing games using more than 3.5GB of VRAM. Not only that, but the green team provided percentage numbers in order to prove that there is no major performance hit when the additional 500MB of GTX970’s VRAM are being used.
Click to expand...

 
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