These days criticism of NVIDIA GTX 970 graphics card memory problems is in the air. Now it has turned out that similar symptoms are experienced by the most powerful representative of the mobile series – NVIDIA GeForce GTX 980m.

GeForce GTX 980m: Problems with access to Video memory 

nvidia-geforce-gtx-980m (2)

NVIDIA GeForce GTX 980m mobility Maxwell flagship is also based on the GM204 graphics processor, but in this case it has been a further cut-down version. It is featuring to 12 of the 16 blocks of SMMs, which together have 1,536 CUDA cores and 96 texture units (the number of ROP units is not known to us). In addition to the on-board include 4 GB of GDDR5 memory with 256-bit.

Service GameNab posted a screenshot from the famous test (application code is publicly available here) that checks the throughput of the memory blocks. It turns out that in the model GeForce GTX 980m last 0.5 GB also have a worse transfer – can therefore suspect that GM204 fused on GTX 980m has also a unique core structure, which translates into problems with access to the last video memory controller.

Well, for now take it which a pinch of salt as no other source has not yet confirmed the report of GameNab, but this situation seems quite likely. Interestingly, according to the editors, the GeForce GTX 970 and GTX 980m are not only the NVIDIA graphics cards with the problem of memory access. It’s getting interesting…

Source: GameNab

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  • 200380051

    Shit. there we go again. But you had to see this coming, its a cut-down GM204.

  • They are just feeding AMD advertising material.

  • Zero

    Maxwell is the Bulldozer of nVIDIA.
    I wonder if Broadwell iGPU will have similar performance, because if that so, nVIDIA is screwed

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  • Majesticii

    This is the problem when this stuff becomes public. More people join the fray that don’t know how this stuff works. What you’re seeing is windows desktop already using a good chunk of memory. Meaning that cannot be allocated properly by that programm and will start to use system memory. If you’re going to test this, you need to run it in headless mode or atleast make sure the 980M isn’t the active unit or caching a desktop. What a suprise the speed is exactly that of the PCI-E 3.0 busspeed. 16GB/s. Move along people, nothing wrong with the device.
    Just to explain, you’ll see the same thing happening if you run this on a GTX980 or R9-290X.

    • Major Tom

      It’s good to see knowledgeable people on the internet every once in a while.

  • Mena Suvari

    nVidia now have only one choice left – drop the prices. @1080p resoultion they are still good cards, I dont care about “only” 3.5GB of memory.

    • Majesticii

      What for, there is nothing wrong with the 980M. The test was done poorly. Honestly, this clickbait generation…

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  • Robby

    According to both pictures below my post, it seems that 980M (12 SMM) and 970M (10 SMM) don’t have 2 memory segments unlike the desktop 970, therefore I think both 980M and 970M don’t suffer the memory issue like 970, is it right? And that bring to my question, if later Nvidia release the rumored desktop GTX 960 Ti (12 SMM) or GTX 965 (10 SMM), they also don’t suffer the similar memory issue, right?

    I have been looking to buy GTX 970 but it’s kind of expensive in my country, so I want the alternative like GTX 960 Ti or 965. No plan to buy GTX 960 (too weak for my taste) or all AMD cards (too hot and power hungry).