英国论坛
说好的4g显存结果是3.5g高速+0.5g低速
我表示比较蛋疼
GTX 970s can only use 3.5GB of 4GB
http://www.overclock.net/t/1535502/gtx-970s-can-only-use-3-5gb-of-4gb-vram-issue/170#post_23443729
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https://forums.geforce.com/default/topic/803518/geforce-900-series/gtx-970-3-5gb-vram-issue/
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嗨…杯具啊…
欺骗啊 !!! 这其实就是3.5GB 外加 0.5GB buffer.
单卡用户影响不大, 因为跑3.5GB以上的单卡shader也不够了.
最惨的是双卡SLI 的用户, 高分辨率多显示器下3.5GB明显是不够, 我说怎么就卡的一比…
最可怕的是: 这一切NVIDIA没有告诉任何人 !!!
现在出来说是市场部的那般文科生不懂技术, 测评指导写错了, 我去! 我问候它300遍…
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我感觉像是windows 32位只能访问3.5g内存类似的问题？
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倒也不能说nvida坑人，毕竟你确实拿到了4GB显存，只是most effective 显存是3.5GB。对单卡用户确实没什么影响。这样说起来，只能说人家是玩了一套文字游戏而已，you got what you have paid for。至于SLI用户那需求当然比单卡大。但说起来估计也不需要用到7GB显存吧。
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[quote=“yangtzexyx, post: 7, topic: 2634680”]
yangtzexyx 发表于 2015-1-29 09:33
倒也不能说nvida坑人，毕竟你确实拿到了4GB显存，只是most effective 显存是3.5GB。对单卡用户确实没什么影 …[/quote]
No:
nvidia 已经承认了存在问题:I totally get why so many people are upset. We messed up some of the stats on the reviewer kit and we didn’t properly explain the memory architecture. I realize a lot of you guys rely on product reviews to make purchase decisions and we let you down.
We’re working on a driver update that will tune what’s allocated where in memory to further improve performance.
Having said that, I understand that this whole experience might have turned you off to the card. If you don’t want the card anymore you should return it and get a refund or exchange. If you have any problems getting that done, let me know and I’ll do my best to help
Reference
SLI 显存不叠加.回帖
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3.5G … 4G 实际上没啥区别啊。。