PDA

View Full Version : NVIDIA GTX 280 Series 55nm cards...How will they perform???


Digital_Trans
07-12-08, 11:06 AM
I heard in late August 2008 that NVIDIA will release their GTX 280 Series cards with with 55nm technology. How will it perform and what are the official specs? This could be the upgrade I've been waiting for since using 8800 Ultra's in SLI.

Lfctony
07-12-08, 11:10 AM
Let me check my magic sphere... Yep, they'll suck...

Uberpwnage
07-12-08, 11:11 AM
Official specs haven't been released yet. They should perform well, but in the end they will just be highly overclocked 280's. Of course, they will overclock well beyond that due to the small manufacturing process, but nothing groundbreaking here AFAIK. Good competition for the 4870X2 if it's the beast we've been led to believe. I'd be very surprised if they ended up faster then the X2, probably close or equal in some cases, but nothing more. The real benefits of these cards will come not in pure speed but lower heat/power consumption and hopefully a low price all in a reliable single GPU package.

CaptNKILL
07-12-08, 11:34 AM
Official specs haven't been released yet. They should perform well, but in the end they will just be highly overclocked 280's. Of course, they will overclock well beyond that due to the small manufacturing process, but nothing groundbreaking here AFAIK. Good competition for the 4870X2 if it's the beast we've been led to believe. I'd be very surprised if they ended up faster then the X2, probably close or equal in some cases, but nothing more. The real benefits of these cards will come not in pure speed but lower heat/power consumption and hopefully a low price all in a reliable single GPU package.

Agreed.

walterman
07-12-08, 11:57 AM
If they tweak the number of gates in the chip like from G70 -> G71, they could raise the clocks by a nice margin. Personally, i do not expect more than 700/1500, and prolly they will reuse the same memory chips at the same speed.

Uberpwnage
07-12-08, 12:07 PM
If they tweak the number of gates in the chip like from G70 -> G71, they could raise the clocks by a nice margin. Personally, i do not expect more than 700/1500, and prolly they will reuse the same memory chips at the same speed.

The memory chips are certainly not lacking though - 2.6GHz is common.

Heinz68
07-12-08, 03:20 PM
I believe they're going to be AWESOME but since it's not around the corner this tread belongs more in the rumors forum.
If the GTX 280 55nm was going to be released in August one should be able to Google much more details about it. Maybe even some previews on Chinese sites.
Therefore I believe we will see the GTX 280 55nm towards the end of the year.

methimpikehoses
07-12-08, 03:22 PM
Are they going to be GDDR5?

Ninja Prime
07-12-08, 03:25 PM
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.

Dazz
07-12-08, 03:36 PM
The only good thing will be they are cheaper to produce due to the die size so will be more afordable.

Ninja Prime
07-12-08, 03:40 PM
If they tweak the number of gates in the chip like from G70 -> G71, they could raise the clocks by a nice margin. Personally, i do not expect more than 700/1500, and prolly they will reuse the same memory chips at the same speed.

I don't know about the memory thing, you can't push GDDR3 much farther than they are now. I think only Samsung makes GDD3 faster than the 0.8ns chips they are using on the GTX 280, and even then only barely, 0.77ns, which is 1.2GHZ vs 1.3GHZ.

SH64
07-12-08, 04:06 PM
Cooler & less power-hungry GT200 ftw!

Bman212121
07-12-08, 04:07 PM
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%.

Bman212121
07-12-08, 04:07 PM
Agreed.

+1

Ninja Prime
07-12-08, 04:24 PM
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.

walterman
07-12-08, 06:22 PM
Perhaps with the 55nm shrink, nVidia can use 2x GTX260 chips to build the GX2 card.

Digital_Trans
07-14-08, 12:39 AM
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???

K007
07-14-08, 04:10 AM
Yes the 55nm is going to be a kick ass, also expect a high rate of failure on the cards..

particleman
07-14-08, 09:06 AM
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.

azanon
07-14-08, 10:38 AM
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!

Digital_Trans
07-14-08, 12:54 PM
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.

Ninja Prime
07-14-08, 08:21 PM
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.

Xion X2
07-14-08, 08:31 PM
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..

http://img214.imageshack.us/img214/2355/cleohr7.png (http://imageshack.us)

XMAN52373
07-14-08, 11:13 PM
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.

Ninja Prime
07-14-08, 11:40 PM
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.

I dont see that being possible. The actual physical shrink of 65nm to 55nm is only ~16%, so it cant be more than that, and for Nvidia as seen by the 9800GTX+ they seem to be only getting about 12% shrink out of it. Being that the 9800GTX+ and the GTX 280 are fairly similar in design I can't imagine them getting much, if any, more out of it than the 9800 does.

The actual physical shrink would only put it at 484mm^2 which is the same size as the 8800GTX, still huge. The more realistic 12% number puts it at 506mm^2.