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Nvidia partners discontinued GTX285 and GTX275
- Thread starter LoadsaMoney
- Start date
Oh......really? So how many TFlop's will they be pushing out?
Soldato
Why? According to Nvidia's own whitepapers, Fermi's double precision performance is only half that of its single precision performance*. They also stated that its double precision performance is roughly 8x that of GT200's**. From that we can extrapolate:
taking 89 GFLOP as the GTX285's DP performance:
8x 89 = 712 * 2 = 1424 GFLOP.
Edit:
A more accurate calculation based on their actual theoretical performance figures would be:
8.53*89 = 759.467 * 2 = 1518.93 GFLOP
Even if you were to account for a more or less useless spare MUL unit per SP that they haven't there, that'd come to 2277 GFLOP. But then nothing on Fermi mentions that, so remains purely speculation.
http://www.nvidia.com/content/PDF/fermi_white_papers/NVIDIAFermiArchitectureWhitepaper.pdf <- it's all in there.
*256 FMA ops/clock double precision, 512 FMA ops/clock single precision.
** "8x the peak double precision floating point performance over GT200"
Or are Nvidia significantly underselling themselves here? If so how?
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Soldato
Sorry if it's a repost. Just reading some of Charlie comments, he reckons Fermi is on to A2 silicon already.
Charlie Demerjian said:
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First time I've agreed with charlie over anything... but as I've been saying recently - nvidias actions of late remind me of hitlers' last days in the bunker - giving orders to non-existant units, etc. etc.
They aren't really in that much of a hole tho... they can have GT300 parts out for a launch around March next year short of anything unexpected happening and while their market share might erode a little over that time they shouldn't lose too much as the high end parts only make a fairly small percentage of their entire lot.
They aren't really in that much of a hole tho... they can have GT300 parts out for a launch around March next year short of anything unexpected happening and while their market share might erode a little over that time they shouldn't lose too much as the high end parts only make a fairly small percentage of their entire lot.
no one with any sense will buy a card from 300 to 400 quid, it's a total waste of money, especially considering that there are no really great PC games about to come out....... PC gaming right now is pretty crap....i'm actually considering halting my new build and switching to console.
the limit for next April will be 300 quid, no point spending any more when the games arent around
the limit for next April will be 300 quid, no point spending any more when the games arent around
Personally I like to play my games maxed out, at high res with a constant 60fps for single player and 100+fps for multi... so if the GT300 lets me do that with some of the new games coming out such as rage, etc. I'll happily spend £500-600 per card... aslong as they don't release a card thats 80% of the speed for half the money as they did with the 260GTX/280GTX.
Soldato
The problem is they have EOL almost their entire range, whilst ATI will have their full range of cards out by early next year since there is only their super high end and their low end left to launch, whilst Nvidia have no high, mid or low end stuff ready.
Soldato
loads of people are buying 5870s....some people buying 3 of them!
Personally 150 is my budget.
Soldato
Some people will spend £300-400 if they think it's going to get them better performance. For all we know, Fermi might be the best thing ever. They know what they need to beat. They have known for a while. Like I said in another thread, you can't rule out Nvidia. Anyone who does is foolish. They are expanding their horizons, expanding into new areas. It will make the company more secure in the future.
It will take time for Fermi to come out sure. But I imagine we will have a high-end part out end of this year/early this year. And the main-stream parts, in March as has been reported elsewhere.
It will take time for Fermi to come out sure. But I imagine we will have a high-end part out end of this year/early this year. And the main-stream parts, in March as has been reported elsewhere.
Soldato
I reckon it will be the 5900 vs Fermi
Soldato
Just out of interest, when did ATi announce the 5*** series and it's specs? Was it not in June/July?