The GT300/Fermi Thread

[neliz]

Even AMD already calculated theoretical performance of fermi just based on it's specs, they already made a comparison chart between r800 and fermi. I'm not asking for theoretical performance, anyone can do that, i was asking for concrete numbers and if the nvidia engineers can't do the math by now, based on the results of the running cards, Nvidia you're done, you're engineers are morons.

Of Course NV knows it's (theoretical) performance, otherwise they've been grabbing the numbers they're giving to partners/press over the past couple of months straight out of their asses.

[JohnZS]

Of Course NV knows it's (theoretical) performance, otherwise they've been grabbing the numbers they're giving to partners/press over the past couple of months straight out of their asses.

Joking aside, 20% faster for the Fermi which we will see in March sounds good... especially as we know that there is a more powerful variant coming in Q3. What are the odds we see the 360 6months before the 380?

As in March for the 448 piper (20% faster than HD 5870) and September for the 512piper which would trade blows with the HD5970?

Ati will most likely release a HD 5890 come May which will significantly narrow the Fermi performance lead to just a few %.

If ATi can get a 2GB at least 950Mhz or even 1Ghz HD 5890 out of the door it will be the first time I have purchased an ATi card since the Radeon 9700 Pro. If not then I will most likely stick it out with a working GTX 285 OCX I receive from RMA until something with more VRAM comes along.

John

[neliz]

It seems both cut-down and full part will be launching in March, placed on top of the GTX275 in the price list. Dual Fermi a couple of weeks after that. can't say if the cut-down part is 384 or 448. TDP for the "big" part should at least match HD5970.

[JohnZS]

It seems both cut-down and full part will be launching in March, placed on top of the GTX275 in the price list. Dual Fermi a couple of weeks after that. can't say if the cut-down part is 384 or 448. TDP for the "big" part should at least match HD5970.

Really?
Hmm nice. So, what IS coming in Q3? (other than the Daddy of all Quadro cards).
Could this be an Ultra Part?
What everyone needs to remember is that the ASUS M.A.R.S was essentially a rebaged Quadro FX 5800

Whatever is coming in September, is going to be huge (6GB of VRAM for a start). Could this be the dual Fermi?
Perhaps the cut-down part has 1.5GB of VRAM, the full part 3GB of RAM and the Dual part "6" GB?

It would make sense as OpenCL, DirectCompute, CUDA etc love the VRAM too you know..
John

[annihilat0r]

It seems both cut-down and full part will be launching in March, placed on top of the GTX275 in the price list. Dual Fermi a couple of weeks after that. can't say if the cut-down part is 384 or 448. TDP for the "big" part should at least match HD5970.

HD5970's TDP is 300w if I am not mistaken, so as far as I know there can't be a "at least as high as hd5970" situation, there's no higher than 300w in pcie tdp... plus, how is dual Fermi gonna be made with such TDP's with the single version, I don't know.

[Teemax]

HD5970's TDP is 300w if I am not mistaken, so as far as I know there can't be a "at least as high as hd5970" situation, there's no higher than 300w in pcie tdp... plus, how is dual Fermi gonna be made with such TDP's with the single version, I don't know.

I believe a dual Fermi would come soon. One of the reasons why NVIDIA has managed to built quite a number of loyal followers in the past years was their "fastest card on the market" claim. I don't think NVIDIA would want to lose that claim, especially after all the heat Fermi has taken.


For a dual Fermi, they could especially bin for chips that can undervolt, lower the clocks and/or disable some cores (like they did with GTX295). Single Fermi needs to push the power envelop to reclaim the "fastest GPU" title; but NVIDIA will manage a dual Fermi as well, IMHO.

[annihilat0r]

I believe a dual Fermi would come soon. One of the reasons why NVIDIA has managed to built quite a number of loyal followers in the past years was their "fastest card on the market" claim. I don't think NVIDIA would want to lose that claim, especially after all the heat Fermi has taken.


For a dual Fermi, they could especially bin for chips that can undervolt, lower the clocks and/or disable some cores (like they did with GTX295). Single Fermi needs to push the power envelop to reclaim the "fastest GPU" title; but NVIDIA will manage a dual Fermi as well, IMHO.

I'm talking based upon the points neliz made. He said that a single Fermi's TDP would be 300w. Now you could take a stripped Fermi part and downclock it even further maybe like you said to make a dual Fermi, but it would still have a TDP of 300w and it would be SLI.

So a dual part drawing the same power as the single GPU part, and with SLI would probably mean being actually slower than the single GPU part. I don't get how a dual Fermi is going to be made if a single Fermi draws 300w

[neliz]

plus, how is dual Fermi gonna be made with such TDP's with the single version, I don't know.

don't expect 2x 512SP's in a dual part?