So you´re not willing to buy amd because of doing the same thing nvidia has done... then that doesn´t make any sense, I think we should make notice us as a good and power consumers and just skip this generation to let them know we have the control and not them...
I never said I wouldn't buy AMD. I was just pointing out the hypocrisy of saying they won't buy nVidia again because of this situation because AMD has done worse and never even apologized.
When it comes to my purchases, I'll buy the best card for the money, I don't really care who it comes from.
Paging out to RAM will increase access times for non-critical stuff, but it also, to the best of my knowledge, does not create memory contention. If I understand correctly, a XOR situation occurs when one or the other segment needs to be written or read from, it causes a scenario where the other has to wait. This means any request to the 512MB segment has the possibility of harming the performance of the main 3.5GB segment.
EDIT: Either way, the GTX 970 will be a more driver dependent card, as Nvidia will probably have to spend more time working on how to manage this memory architecture with certain games.
The way I understand it is before anything can even be accessed by the GPU, it has to be brought back into VRAM from system RAM then accessed. This is a lot slower than the wait cycle to access the non-critical partition. Basically the main VRAM has to page something else out to system RAM(because it is already full), then read the data it wants into VRAM. That is a long process compared to the wait time to directly access the non-critical area.
No, they're disappointing because they unknowingly got a cut down part...
Actually we already knew it was a cut down part.
If they are unable to communicate something as basic as this, one starts to wonder what else they intentionally fucked up and no one at NVIDIA even knows about it, because there were more of these "communication errors" within their own company...
You obviously have no clue how hard it is to communicate technical shit to a marketing team. Almost everyone in this forum probably has more technical knowledge than anyone on a marketing team. If you tell the marketing team the card has 4GB, but 0.5GB of it is partitioned in a way that it is non-priority because the way the crossbar works now, you can disabled part of the L2, but still keep the memory controller associated with that L2 portion working by linking it over to the adjacent L2 portion, and because of this configuration the card has 64 ROPs but only 56 will be used because the other 8 ROPs are also accessed over this link to the adjacent L2 and it would actually hurt performance to use those extra 8 ROPs, even though they are enabled and technically could be used...
The marketing team is going to look at you with a blank stare and say "So the card is a 4GB card with 64 ROPs."
I don`t believe this guy, can`t he say "We gimp graphic cards to reduce their performance but this time we burned ourself because we gimped them too much".
Ironically, it was actually their attempt to not gimp the card as much as previous generations that bit them in the ass. If they did it the way they did in the past, the GTX970 would have been a 224-Bit 3.5GB card. However, the new method allowed them to not have to disabled that 32-bit memory controller and not loose the 0.5GB of memory that they normally would have had to.