nVidia announce the Titan X at GDC 2015

Tonester0011 · 7 Mar 2015 at 23:05

fantasticCG said:
A question if kapp or anyone can help running 3 swifts how long would 3 980s last?
Or the X better to wait?

At that sort of pixel count i would put money on two TX beating out 3x980s. You know, in non VRAM limited situations

It's a how long is a piece of string question tbh mate, if you've yet to splash your cash i would be inclined to wait the next few weeks and see what the TX has then make the decision from there.

Tonester0011 · 7 Mar 2015 at 23:07

Silent_Scone said:
There are known reasons why it's not seen plausible but there's been no credible source yet. Because of how HBM operates, the interposer that connects the GPU to the memory packages needs to be fairly huge. Each HBM 1.0 stack is limited to 1GB, and we're being lead to believe with what we know that the technology is limited to 4 memory stacks in this configuration. There is no documentation at present that says with any real certainty that HBM is specifically limited to 4 stacks. Representatives have made comments theorising that it's potentially not plausible given the space available that more stacks simply wouldn't fit on the package.

The Hynix documentation shows a configuration of four stacks on a single interposer. That's all it is, a diagram. I don't think this in itself is showing you that this is the 'be all end all'.

DM will be round shortly, expect a long post explaining how it's not only possible but how that's whats going to happen.

Kaapstad · 7 Mar 2015 at 23:07

fantasticCG said:
A question if kapp or anyone can help running 3 swifts how long would 3 980s last?
Or the X better to wait?

Unfortunately I don't know very much about monitors so perhaps one of the other guys could help.

RanxZy · 7 Mar 2015 at 23:07

AMD are usually always more generous than NVIDIA with Vram with the regular high end cards, so if it really is 4GB on the 390X then that will surely be due to the limitations of the HBM 1st gen technology.

Silent_Scone · 7 Mar 2015 at 23:11

Tonester0011 said:
DM will be round shortly, expect a long post explaining how it's not only possible but how that's whats going to happen.

lol DM won't know much more than any of us, or at least in reality as strangely enough he is not a semiconductor engineer nor has he seen the specifications and layout of the 390x. It is speculation either way, I'm sure he'd like to hope AMD have found a way of implementing more with the technology

Kaapstad · 7 Mar 2015 at 23:12

RanxZy said:
AMD are usually always more generous than NVIDIA with Vram with the regular high end cards, so if it really is 4GB on the 390X then that will surely be due to the limitations of the HBM 1st gen technology.

It is not a disaster if the 390X does have 4gb as most people who buy them will still be using 1080p or 1440p. Even @2160p you are going to need several cards before 4gb becomes a major problem.

There will always be options later on to put more memory on the card.

Kaapstad · 7 Mar 2015 at 23:14

Silent_Scone said:
lol DM won't know much more than any of us, or at least in reality as strangely enough he is not a semiconductor engineer nor has he seen the specifications and layout of the 390x. It is speculation either way, I'm sure he'd like to hope AMD have found a way of implementing more with the technology

+1

If it was the Titan X that was going to use HBM I am sure DMs posts would be a lot shorter and very very rare.

win8.1 · 7 Mar 2015 at 23:15

Silent_Scone said:
There are known reasons why it's not seen plausible but there's been no credible source yet. Because of how HBM operates, the interposer that connects the GPU to the memory packages needs to be fairly huge. Each HBM 1.0 stack is limited to 1GB, and we're being lead to believe with what we know that the technology is limited to 4 memory stacks in this configuration. There is no documentation at present that says with any real certainty that HBM is specifically limited to 4 stacks. Representatives have made comments theorising that it's potentially not plausible given the space available that more stacks simply wouldn't fit on the package.

I hope 4gb is not the limit for 1 gen HBM. If Amd can get a 8gb HBM card out Nvidia will be forced to get the GTX equivalent of the Titan X out as well and that will be good for all.

Silent_Scone · 7 Mar 2015 at 23:16

People get confused as it's quite new with the fact that HBM 1.0 is limited to 4 dies PER stack. This isn't anything to do with how AMD implement the 1GB stacks. Everyone should hope they can fit more than 4 stacks on a single interposer, but they may well not

RanxZy · 7 Mar 2015 at 23:16

fantasticCG said:
A question if kapp or anyone can help running 3 swifts how long would 3 980s last?
Or the X better to wait?

With 3x1440p monitors even 3x 8GB 290X would serve you better but if you want to stick with NVIDIA 980s will suffer with that much workload.

Wait till NVIDIA release other cards with the GM200 GPU if you can, they should have cards in the £500-£700 range eventually.

win8.1 · 7 Mar 2015 at 23:18

Silent_Scone said:
People get confused as it's quite new with the fact that HBM 1.0 is limited to 4 dies PER stack. This isn't anything to do with how AMD implement the 1GB stacks. Everyone should hope they can fit more than 4 stacks on a single interposer, but they may well not

You never know Amd may surprise.

blasterbolt · 7 Mar 2015 at 23:18

Combat Fighter said:
Something can't be right with your setup. I'm getting better performance with one card albeit with 2xAA (1440p does not need any higher) everything ultra.

Unless your cards are seriously throttling with temps (my max temps are 46c) or your SLI is not engaged or something.

2x980's should give you way more fps than your quoting.

I dream of max tempt at 46. Hell if I add 30 voltage in AB my top card hit 85 after 10 mins! SLI is engaged and my cpu is at 4.5. My cores do throttle back to 1480 ish afetr 20 mins of playing . I should never of bought 2 non reference cards for sli xD.

If 1 titan x can run bf4 on full pelt at 120+ constant at 1440p then I will more then happy to drop £999 and flog these 2 kaf2s I have!

fantasticCG · 7 Mar 2015 at 23:19

Kaapstad said:
Unfortunately I don't know very much about monitors so perhaps one of the other guys could help.

Sorry it wasnt really about the monitors more the 980 4GB running out
The res of 3 swifts is 7680x1440 I did see someone's results using 3x980 BF4 medium 90fps and smooth with G-sync

Silent_Scone · 7 Mar 2015 at 23:21

fantasticCG said:
Sorry it wasnt really about the monitors more the 980 4GB running out
The res of 3 swifts is 7680x1440 I did see someone's results using 3x980 BF4 medium 90fps and smooth with the G-sync

Yeah 3x1440p is a lot of pixels for 4GB if that's what you're asking

Orangey · 7 Mar 2015 at 23:22

Maybe they could just shrink the RAM chips in the stacks instead of waiting for gen2. I think the HBM spec calls for them to be fabbed on a fairly large node by current standards but I could be wrong.

fantasticCG · 7 Mar 2015 at 23:24

Silent_Scone said:
Yeah 3x1440p is a lot of pixels for 4GB if that's what you're asking

I thought as much I'm just getting impatience for the X!

Meladath · 7 Mar 2015 at 23:25

Can't say I can understand people who buy titans, but I am a penny pincher and its not really my place to say how other people spend their money.

I am going to guess at:
3072 cores due to die size and the way maxwell works
Nvidia TDP of around 250W mostly due to the fact that nvidia has tried to stick to this in the past generations of flagships plus it seems about right given the 970/980 TDP figures and core/memory count.
An actual power usage being 300W, maybe higher. 980 can already use 280W if overclocked and running aida/occt so 300W seems pretty conservative even though you might think it sounds very high at first tbh, 12GB of GDDR5 is really going to ramp up the power too...
£800 price tag, given the prices of the last titans and also the price of the 980 compared to the price of the 780

Silent_Scone · 7 Mar 2015 at 23:28

Orangey said:
Maybe they could just shrink the RAM chips in the stacks instead of waiting for gen2. I think the HBM spec calls for them to be fabbed on a fairly large node by current standards but I could be wrong.

I asked Roy if AIB partners were going to be able to add additional memory not long ago and he smiled. He could have just as well ignored the question entirely. Should all become abundantly clear in the coming weeks

win8.1 · 7 Mar 2015 at 23:28

Orangey said:
Maybe they could just shrink the RAM chips in the stacks instead of waiting for gen2. I think the HBM spec calls for them to be fabbed on a fairly large node by current standards but I could be wrong.

I am sure Amd will find a way and that could be it. They don't usually give less memory than Nvidia's Gtx cards.

Tonester0011 · 7 Mar 2015 at 23:29

Meladath said:
Given the prices of the last titans, but also the price of the 980 compared to the price of the 780.. I am going to guess at £800 price tag.

The 780 was priced considerably higher than the 980 (i think $649 compared to $549) however the Titans were $999 and if rumours are to be believed this will come in at $1350.

I can't remember what the Titan cost on our shores, £829 comes to mind and then a week later up to £1000!

If your guess is right, Nvidia gone done good.
I'll stick to my original guess of £875 though (but expecting £1k off the bat!)