Zo stevige woorden op Guru3D:
Concluding
Our product reviews in the past few months and its conclusion are not any different opposed to everything that has happened in the past few days, the product still performans similar to what we have shown you as hey .. it is in fact the same product. The clusterfuck that Nvidia dropped here is simple, they have not informed the media or their customers about the memory partitioning and the challenges they face. Overall you will have a hard time pushing any card over 3.5 GB of graphics memory usage with any game unless you do some freaky stuff. The ones that do pass 3.5 GB mostly are poor console ports or situations where you game in Ultra HD or DSR Ultra HD rendering. In that situation I cannot guarantee that your overall experience will be trouble free, however we have a hard time detecting and replicating the stuttering issues some people have mentioned.
The Bottom line
Utilizing graphics memory after 3.5 GB can result into performance issues as the card needs to manage some really weird stuff in memory, it's nearly load-balancing. But fact remains it seems to be handling that well, it’s hard to detect and replicate oddities. If you unequivocally refuse to accept the situation at hand, you really should return your card and pick a Radeon R9 290X or GeForce GTX 980. However, if you decide to upgrade to a GTX 980, you will be spending more money and thus rewarding Nvidia for it. Until further notice our recommendation on the GeForce GTX 970 stands as it was, for the money it is an excellent performer. But it should have been called a 3.5 GB card with a 512MB L3 GDDR5 cache buffer.
The solution Nvidia pursued is complex and not rather graceful, IMHO. Nvidia needed to slow down the performance of the GeForce GTX 970, and the root cause of all this discussion was disabling that one L2 cluster with it's ROPs. Nvidia also could have opted other solutions:
Release a 3GB card and disable the entire ROP/L2 and two 32-bit memory controller block. You'd have have a very nice 3GB card and people would have known what they actually purchased.
Even better, to divert the L2 cache issue, leave it enabled, leave the ROPS intact and if you need your product to perform worse to say the GTX 980, disable an extra cluster of shader processors, twelve instead of thirteen.
Simply enable twelve or thirteen shader clusters, lower voltages, and core/boost clock frequencies. Set a cap on voltage to limit overlclocking. Good for power efficiency as well.
We do hope to never ever see a graphics card being configured like this ever again as it would get toasted by the media, for what Nvidia did here. It’s simply not the right thing to do. Last note, right now Nvidia is in full damage control mode. We submitted questions on this topic early in the week towards Nvidia US, in specific Jonah Alben SVP of GPU Engineering. On Monday Nvidia suggested a phonecall with him, however due to appointments we asked for a QA session over email. To date he or anyone from the US HQ has not responded to these questions for Guru3D.com specifically. Really, to date we have yet to receive even a single word of information from Nvidia on this topic.
We slowly wonder though why certain US press is always so much prioritized and is cherry picked … Nvidia ?
http://www.guru3d.com/new...970-vram-stress-test.html
En een antwoord van Nvidia:
Hey,
First, I want you to know that I'm not just a mod, I work for NVIDIA in Santa Clara.
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.
It sucks because we're really proud of this thing. The GTX970 is an amazing card and I genuinely believe it's the best card for the money that you can buy. 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.
--Peter
https://forums.geforce.co...sue/post/4438090/#4438090
Snap alleen echt niet waarom ze niet openlijk met een verklaring komen. Vreemde vorm van damage control
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Voor 16% gewijzigd door
fier0x op 28-01-2015 19:05
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