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Old 07-12-08, 04:07 PM   #13
Bman212121
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

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Originally Posted by methimpikehoses View Post
Are they going to be GDDR5?
I think the real question is does it really matter? I still haven't seen anyone prove or disprove that GDDR3 isn't fast enough. If someone has tried this please link to it. What I'm really wondering is if you underclock the memory by say 10% does it really cut the GPU performance by 5 - 10% as well, or is it going to be a minimal difference, like 1 - 2%.
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Old 07-12-08, 04:07 PM   #14
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

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Agreed.
+1
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Old 07-12-08, 04:24 PM   #15
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

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Originally Posted by Bman212121 View Post
I think the real question is does it really matter? I still haven't seen anyone prove or disprove that GDDR3 isn't fast enough. If someone has tried this please link to it. What I'm really wondering is if you underclock the memory by say 10% does it really cut the GPU performance by 5 - 10% as well, or is it going to be a minimal difference, like 1 - 2%.
Everything I've seen seems to indicate that 280s arent bandwidth limited most of the time. I don't think GDDR5 would be useful except in a few rare cases.
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Old 07-12-08, 06:22 PM   #16
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

Perhaps with the 55nm shrink, nVidia can use 2x GTX260 chips to build the GX2 card.
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Old 07-14-08, 12:39 AM   #17
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

I can't wait for the card to come out. I hope it's what everyone is hoping for in a 9-series NVIDIA GPU. After all, what else will NVIDIA do after the GTX 280 55nm cards? Maybe a GX2 280 like the 9800 GX2? I'm sure it's going to be a rinse and repeat technology road map with enhanced performance. I guess the only other question I have is how long does the 9-series GPU have before it's tapped out???
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Old 07-14-08, 04:10 AM   #18
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

Yes the 55nm is going to be a kick ass, also expect a high rate of failure on the cards..
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Old 07-14-08, 09:06 AM   #19
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

I expect it to be similar to how the 8800 GT was to the 8800 GTX. nVidia will probably focus their .55nm cards on cost cutting and not performance. I expect things like the 512-bit memory bus will go and be replaced with GDDR5. I expect the 280 GTX to remain nVidia's top end card, but the .55nm cards with be similar to the 4870 and offer competitive performance at a much cheaper price compared to the 280 GTX.

The goal of their .55nm cards will be to allow them to be price competitive with ATi which they currently are not.
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Old 07-14-08, 10:38 AM   #20
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

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The power reduction would be the bigger issue, because that directly relates to clock rates, if they are only getting 3%(see anandtech) power reduction then likely clocks would only be slightly better, probably stock clocks would be in the range of the high end GTX 280 OC boards that are out now. I still think they're holding out for 45nm or 40nm, in 1st or 2nd quarter of '09.
It would be nice to see them get the power requirements for it down to just 2, 6-pin PCI connectors.

I kind of wish they hold the power requirements steady on video cards for a few years, and work on increasing performance within the constraints of finite power requirements. That'd equal lower noise, lower heat, and easy on the electric bill. If they did the same for the motherboard, I might actually be able to keep the same powersupply for more than 2 years; Imagine that!
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Old 07-14-08, 12:54 PM   #21
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

I hope NVIDIA will keep the 512-bit memory bus!!! I also hope the cards will offer GDDR5 memory. Let's hope the card is what it is and nothing less.
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Old 07-14-08, 08:21 PM   #22
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

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It would be nice to see them get the power requirements for it down to just 2, 6-pin PCI connectors.

I kind of wish they hold the power requirements steady on video cards for a few years, and work on increasing performance within the constraints of finite power requirements. That'd equal lower noise, lower heat, and easy on the electric bill. If they did the same for the motherboard, I might actually be able to keep the same powersupply for more than 2 years; Imagine that!
Yeah, I've upgraded my PS like every year for the last 3 or 4 years due to videocards, I thought this year I had enough PS for anything, but now I'm not so sure. I'll probably go for broke this time and get a PC Power and Cooling 860 or 1000 or something.
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Old 07-14-08, 08:31 PM   #23
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

Madame Cleo says they will be "teh suckors" compared to 4870 X2...

Take that for what it's worth... but she's right more often than not... heed her wisdom..

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Old 07-14-08, 11:13 PM   #24
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Default Re: NVIDIA GTX 280 Series 55nm cards...How will they perform???

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I wouldn't hold your breath. 55nm isn't that much smaller than 65nm and on top of that Nvidia isn't getting much of a shrink or much of a power reduction out of 55nm compared to 65nm, as seen by the 9800 GTX+ previews on anandtech. I don't think they'll get below 500mm^2 and if they did it would be just barely, maybe the size of of the G80's chip, which is still huge.

The power reduction would be the bigger issue, because that directly relates to clock rates, if they are only getting 3%(see anandtech) power reduction then likely clocks would only be slightly better, probably stock clocks would be in the range of the high end GTX 280 OC boards that are out now. I still think they're holding out for 45nm or 40nm, in 1st or 2nd quarter of '09.

Actually, look for a GPU of around 420mm^2 at 55nm, those who now these things at B3D are saying 400-440mm^2 at 55nm.
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