Anything over $599 for GTX480 is obscure, and even that's too high (it's 5970's MSRP after all, and it won't perform 5970 (in general, of course there might be corner cases where it does))
NVIDIA GF100 & Friends speculation
- Thread starter Arty
- Start date
Anything over $599 for GTX480 is obscure, and even that's too high (it's 5970's MSRP after all, and it won't perform 5970 (in general, of course there might be corner cases where it does))
aaronspink
Veteran
According to the datasheet, the difference between ~5@1.5 and ~3.2@1.35 should save ~1W per device for ~10W total, which is nothing to sneeze at.
I suppose it's possible that decision was made to get the 470 below 225w. Surely if nVidia are making this sort of decision it's like band-aiding over a severed leg though?
Generally speaking it won't amount to that much, real world, but a total board saving of 4% for a that big a bandwidth reduction? Or the difference in memory device costs for a total of 4% power?
Those are sums that wouldn't add up to me.
Jawed
Legend
The question is also how much power is saved on the GPU to drive the higher interface speed?
And as I queried earlier, if the MCs in GF100 are, on average, ~7mm from the interface pads (if I'm understanding the die layout correctly), what extra power is required for what seems like quite a long distance, as compared with a much closer placement as seen in RV770?
Jawed
And as I queried earlier, if the MCs in GF100 are, on average, ~7mm from the interface pads (if I'm understanding the die layout correctly), what extra power is required for what seems like quite a long distance, as compared with a much closer placement as seen in RV770?
Jawed
itsmydamnation
Veteran
big lols if charlie was right and NV for some reason cant get there memory controller upto speed, guess we have to wait and see for the 480. So i wonder how likely it is for the 480 to have a ram clock around the same speed as the 470. to me it doesn't make sense to have a bigger bus just so you can run "standard" GDDR5 slower, my bet is somethings broken.
from the other side if the 480 ram is 1000-1200 and assuming that they use the same ram for the 470 and 480 you would be mad to buy the 480, just OC the 470's likely undervolted ram.
from the other side if the 480 ram is 1000-1200 and assuming that they use the same ram for the 470 and 480 you would be mad to buy the 480, just OC the 470's likely undervolted ram.
800mhz GDDR5 points to missing TDP targets by miles surely?
It is also possible nVidia will try to push both cards as being "massively overclockable", much like the 5970 was supposed to be while coming in under 300w.
They must know that is a hard sell to reviewers and the general public though. I've long believed that the best results we've seen from nVidia are on 480's with much higher clocks than the 300w regulation part will allow. Ditto for the 470 to make 225w it needs to cut back on the memory speed to achieve it. This is nV on the limit.
It is also possible nVidia will try to push both cards as being "massively overclockable", much like the 5970 was supposed to be while coming in under 300w.
They must know that is a hard sell to reviewers and the general public though. I've long believed that the best results we've seen from nVidia are on 480's with much higher clocks than the 300w regulation part will allow. Ditto for the 470 to make 225w it needs to cut back on the memory speed to achieve it. This is nV on the limit.
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itsmydamnation
Veteran
why would they care for 225watt vs 235 watts, sure its moving to 6+8 pins but to take your ram from 1000-1200 to 800 just for that doesn't make any sense to me.
out of all the people who will buy a 470/80 would is going to care about 10 watts.
out of all the people who will buy a 470/80 would is going to care about 10 watts.
aaronspink
Veteran
Because Vendors care about power.
What if it's not 225w vs 235w but rather 295w vs 305w?
itsmydamnation
Veteran
Then they would do anything they can to keep it at 295W just for the sake of PCIe stickers & approval for the stock model
aaronspink
Veteran
Nor me really, but then sometimes there are other external realities that require strangeness.
DavidGraham
Veteran
Far Cry 2 .. GTX 470 :40 FPS , HD5870 : 33FPS
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The thread on the forum is talking about possible memory bug or whatever, so it'll be interesting to see if the extra memory on the GTX is helping out
And where did they confirm it was a 470 for that run? The expreview forum is saying its a GT4x0 card so they didn't confirm it was one or the other
And where did they confirm it was a 470 for that run? The expreview forum is saying its a GT4x0 card so they didn't confirm it was one or the other
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