AMD Radeon R9 390X Arrives In 1H 2015 – May Feature “Hydra” Liquid Cooling

[Jono8]

Tahiti LE: 1536 Shaders @ 975Mhz, 256Bit Bus (100%)
Tahiti Pro 1792 Shaders @ 850Mhz, 384Bit Bus (110%)

GTX 660TI: 1344 Shaders @ 980Mhz, 192Bit Bus (100%)
GTX 670: 1344 Shaders @ 980Mhz, 256Bit Bus (115%)

Clearly it isn't.

670 has 32 rops compared with the 660ti's 24

 

[tommybhoy]

Well if you won't even bother to see how the 980/970 deals with memory compression, there is no point continuing this really is there. Fingers in ears to suit your way of thinking is a poor show really.

At anyone interested and this is the same for the 256bit bus on the 285 and possible future AMD/nVidia cards.

The fact is though, even the 285 is using a very similar tech and called it "Lossless Delta Color Compression", where as nVidia have called it their "Third generation Delta Color Compression". Both are achieving the same goal though. Maxwell works by giving more choice of delta calculations to the compressor and this in turn reduces the memory bandwidth needed for that DCC.

For the third time, I said I know how it works!

Never said I haven't watched it either if you read back, mentioning fingers in ear mode when it's hands over screen mode-ironic isn't it?

 

[Gregster]

For the third time, I said I know how it works!

Never said I haven't watched it either if you read back, mentioning fingers in ear mode when it's hands over screen mode-ironic isn't it?

Well you clearly didn't, or you wouldn't have kept on about the bus size

Anyways, I have nothing further to add and looks like 2015 could be exciting for whatever we decide to go for. GPU wars are good for us

 

[Silent_Scone]

Go home Tommy, you're drunk.

The bus size is one factor. You can't possibly dictate performance by the bus and memory bandwidth alone.

Doesn't seem to be helping the 290x against Maxwell, with double the bus width.

 

[andybird123]

I love the way tomy keeps referring to 4k with 4xmsaa as if anyone actually tries to use 4xmsaa on a 4k monitor

 

[Final8y]

You can not compare different generations and tech and conclude buss size does not matter, different buss size on the same tech and generation is how you compare.

 

[Kaapstad]

I would never dream of using 4xmsaa @4K

Seriously though, if you are going to push the settings you are going to need 3 or 4 cards and in a lot of games that means 6gb ones.

 

[DarrenM343]

You can not compare different generations and tech and conclude buss size does not matter, different buss size on the same tech and generation is how you compare.

I think the new maxwell cards do help clarify that the bus size is not as relevant as some think. One of those two things you mentioned is never the same between AMD and Nvidia, hence, bus size is not as relevant as some think. Even if the generation of cards is the same, the tech won't be! In the past I've read people saying to buy this or that because of bus size (bigger=better). Sure it might have helped in some scenario's but it would be low down in list of requirements for a new card. Ultimately, what provides best performance at the resolution you're likely to game at, with reliability, quality bang per buck and efficiency also into the equation.

 

[Final8y]

I think the new maxwell cards do help clarify that the bus size is not as relevant as some think. One of those two things you mentioned is never the same between AMD and Nvidia, hence, bus size is not as relevant as some think. Even if the generation of cards is the same, the tech won't be! In the past I've read people saying to buy this or that because of bus size (bigger=better). Sure it might have helped in some scenario's but it would be low down in list of requirements for a new card. Ultimately, what provides best performance at the resolution you're likely to game at, with reliability, quality bang per buck and efficiency also into the equation.

And you have different buss size maxwell cards to compare, because i have not seen any, because on the same tech the buss size nearly always shows a difference under the right conditions.
Just because on the new tech a smaller buss size has been shown to catch up old tech bigger buss that does not mean a new tech bigger buss will show no gain as you have nothing to go by to make that conclusion.

Also just because there are scenarios that put the bottleneck elsewhere beside the buss on a given card or tech in given conditions that again does not conclude that buss size is irrelevant in general and is as much use as concluding that a Intel 5960X Extreme is no better than a Intel Celeron G1820 based on using the Windows Calculator.

 

[DarrenM343]

And you have different buss size maxwell cards to compare, because i have not seen any, because on the same tech the buss size nearly always shows a difference under the right conditions.
Just because on the new tech a smaller buss size has been shown to catch up old tech bigger buss that does not mean a new tech bigger buss will show no gain as you have nothing to go by to make that conclusion.

Also just because there are scenarios that put the bottleneck elsewhere beside the buss on a given card or tech in a given conditions that again does not conclude that buss size is irrelevant in general and is as much use as concluding that a Intel 5960X Extreme is no better than a Intel Celeron G1820 based on using the Windows Calculator.

I wasn't stating any facts, or that it's totally irrelevant. Nvidia would not have crippled the card with a smaller bus IMO. At current resolutions that most are using, given the performance of the cards, I expect the bus to be optimal. Even I mentioned in certain scenario's it could be different. But I would not recommend one card over another, now or in the future, just because of bus size, unless scenario require it.
The 980 from what I have seen (andI don't do a lot of research so please nobody beat me with a stick if I'mwrong), beats the 780ti in all scenario and AMD cards, even in scenario's few users currently use - 4k, with a smaller bus.

They are great cards for the majority of gamers. Those who want/need more will I'm sure having their cravings satisfied later, with an optimal bus size

 

[Final8y]

I wasn't stating any facts, or that it's totally irrelevant. Nvidia would not have crippled the card with a smaller bus IMO. At current resolutions that most are using, given the performance of the cards, I expect the bus to be optimal.

You assume it to be optimal because you have no larger buss maxwell to compare it with.

 

[Silent_Scone]

I would never dream of using 4xmsaa @4K




Seriously though, if you are going to push the settings you are going to need 3 or 4 cards and in a lot of games that means 6gb ones.

8XMSSA at 4K is so pointless Kaap. Most games you can't even do that with 6GB lol. Hell I only ever use 4X at 1440p


Also the speculation of the Hydro cooler is probably the least enthusing part of this rumour. GM204 doesn't need a watercooler, I'm almost shocked at just how cool they are.

 

[Kaapstad]

8XMSSA at 4K is so pointless Kaap. Most games you can't even do that with 6GB lol. Hell I only ever use 4X at 1440p


Also the speculation of the Hydro cooler is probably the least enthusing part of this rumour. GM204 doesn't need a watercooler, I'm almost shocked at just how cool they are.

On 4 Titans I still have not found any games that run out of VRAM. The closest I got was Watch Dogs which was a very close call. Most games @4K maxed tend to hover around 4gb, some a little over and some a little under.

 

[win8.1]

Go home Tommy, you're drunk.

The bus size is one factor. You can't possibly dictate performance by the bus and memory bandwidth alone.

Doesn't seem to be helping the 290x against Maxwell, with double the bus width.

Your comparing a 1 year old Amd card to a new gen Nvidia card to say the double bus width does not help the 290x against Maxwell. If the 290x/290 had a 256bit bus I don't think it would be holding up so well in performance to the new gen mid range Maxwell's one year later. Bus size alone does not make the difference as you say but it does help if you compare new gen to new gen. One thing for sure is that Nvidia's high end Maxwell's will not have a 256bit cut down bus even with the compression optimizations of Maxwell. Even Nvidia knows it will help. Sadly these cards will be priced at £500+ now that the 970's are selling for near enough the 290 prices at launch. How much performance the 390 will have over the 970 at the same launch price will be interesting. Quite a bit I would say. That's the card that we will need to compare with it to see if bus size does not help.

 

[Silent_Scone]

Your comparing a 1 year old Amd card to a new gen Nvidia card to say the double bus width does not help the 290x against Maxwell. If the 290x/290 had a 256bit bus I don't think it would be holding up so well in performance to the new gen mid range Maxwell's one year later. Bus size alone does not make the difference as you say but it does help if you compare new gen to new gen. One thing for sure is that Nvidia's high end Maxwell's will not have a 256bit cut down bus even with the compression optimizations of Maxwell. Even Nvidia knows it will help. Sadly these cards will be priced at £500+ now that the 970's are selling for near enough the 290 prices at launch. How much performance the 390 will have over the 970 at the same launch price will be interesting. Quite a bit I would say. That's the card that we will need to compare with it to see if bus size does not help.

You're cross referencing architectures with bandwidth so once again point is moot

 

[Silent_Scone]

On 4 Titans I still have not found any games that run out of VRAM. The closest I got was Watch Dogs which was a very close call. Most games @4K maxed tend to hover around 4gb, some a little over and some a little under.

You don't play games though kaap lol.

You're not trying hard enough. Watch Dogs will use more than 6gb easily with 8MSAA

 

[win8.1]

You're cross referencing architectures with bandwidth so once again point is moot

Your comparing one year old Amd tech with new tech Nvidia cards to say the larger uncut bus size of the 290 does not help against mid range Maxwell. Of course it does as the 970 is not much better than the 290 one year on. If Nvidia had put a larger bus on the 970 or 980 there would have been a good bit more performance increase over Amd's old gen. I have no doubt Nvidia could have done this but then they want to charge £500+ for the high end cards so they don't.

 

[Gregster]

Your comparing one year old Amd tech with new tech Nvidia cards to say the larger uncut bus size of the 290 does not help against mid range Maxwell. Of course it does as the 970 is not much better than the 290 one year on. If Nvidia had put a larger bus on the 970 or 980 there would have been a good bit more performance increase over Amd's old gen. I have no doubt Nvidia could have done this but then they want to charge £500+ for the high end cards so they don't.

Well if you want to be picky like that, the Titan was out a year before the 290X was released and only then did that manage to match it, so horses for courses. Also as a genuine question, is the 285 on old tech or new?

 

[whyscotty]

How much performance the 390 will have over the 970 at the same launch price will be interesting.
Quite a bit I would say. That's the card that we will need to compare with it to see if bus size does not help.

290 released at £320

Highly unlikely the 390 will launch at £270

 

[CAT-THE-FIFTH]

Well if you want to be picky like that, the Titan was out a year before the 290X was released and only then did that manage to match it, so horses for courses. Also as a genuine question, is the 285 on old tech or new?

It will be interesting to see what the full fat Tonga will be performance wise,and whether AMD has been binning them for the R9 370X(I would imagine it would be a midrange GPU) launch?