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[Chiphell] AMD Volcanic Island chip design leak and specs? - Page 25

post #241 of 458
Quote:
Originally Posted by airisom2 View Post

Titan Ultra, supposedly. Even then, I'm thinking the 9970 will outperform it, given these specs are true.

Since AMD is basically the company behind making the GDDR standard (well they contributed a lot), I don't see how they couldn't put GDDR6 in Volcanic Islands. Just a quick google showed me that we are supposed to expect it by 2014. With the card probably coming out late this year, and probably the rest of the generation coming out early 2014, that's pretty close. Heck, there may be a reason why they went with a 512-bit bus that isn't for bragging rights. GDDR3 brought us DDR, GDDR5 brought us QDR, and maybe GDDR6 will give us ODR (PURE speculation). With that much bandwidth, you're going to need a large bus in order to handle all of it.

Is the GDDR memory the same thing as the normal RAM modules we use?
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post #242 of 458
Quote:
Originally Posted by Deceit View Post

Is the GDDR memory the same thing as the normal RAM modules we use?

No, it's not.
post #243 of 458
Quote:
Originally Posted by ltulod View Post

Quote:
Originally Posted by tsm106 View Post

WHen I read that and saw it was a MCP35X2, I thought this guy is being facetious. It's a trick question.

I was skeptical, when one day Pedro stated that 120mm is all that you needed per gpu block, you guys blasted him....I'm not expert on these things, I saw 4 mcp655 on a build here though...


1. That formula is old and was never applicable to top end gear like gtx580s or current cards now with high TDP. Take the 580 which can draw 300w stock. Then if we recognize that a very solid rad such as the RX360 can only dissipate less than 250w at 10c delta (stat from Martins)... that right there tells you that the whole RX360 is not going cool a single 580 while maintaining a 10c delta. This is why these formulas are really not applicable and you have to look at the wattage draw in and of itself to determine how much you need and how much delta you can live with.

2. D5's have very low head pressure so it's not unheard of for ppl who are adamant about using only D5 pumps to have to resort to using a whole lotta D5 pumps (and switching to 24v) to maintain the needed head pressure.
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post #244 of 458
Quote:
Originally Posted by tsm106 View Post

1. That formula is old and was never applicable to top end gear like gtx580s or current cards now with high TDP. Take the 580 which can draw 300w stock. Then if we recognize that a very solid rad such as the RX360 can only dissipate less than 250w at 10c delta (stat from Martins)... that right there tells you that the whole RX360 is not going cool a single 580 while maintaining a 10c delta. This is why these formulas are really not applicable and you have to look at the wattage draw in and of itself to determine how much you need and how much delta you can live with.

2. D5's have very low head pressure so it's not unheard of for ppl who are adamant about using only D5 pumps to have to resort to using a whole lotta D5 pumps (and switching to 24v) to maintain the needed head pressure.

True, but in all fairness, maintaining a 10C delta isn't really necessary.
 
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post #245 of 458
10c on the gpus is the goal. I don't see the point in even bothering if you are happy with 20c or higher. That's just slightly better than air. And for the record, clocking on my 7970s, temps nearing 50c or higher and it becomes real hard to maintain very high clocks like past 1350mhz.
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post #246 of 458
Quote:
Originally Posted by tsm106 View Post

10c on the gpus is the goal. I don't see the point in even bothering if you are happy with 20c or higher. That's just slightly better than air. And for the record, clocking on my 7970s, temps nearing 50c or higher and it becomes real hard to maintain very high clocks like past 1350mhz.

50C is 20C delta for you?!
 
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post #247 of 458
Quote:
Originally Posted by tsm106 View Post

10c on the gpus is the goal. I don't see the point in even bothering if you are happy with 20c or higher. That's just slightly better than air. And for the record, clocking on my 7970s, temps nearing 50c or higher and it becomes real hard to maintain very high clocks like past 1350mhz.


Though there is no problem letting your water get hot for a normal user, hell my water temp will get up to 105-110f while playing crysis 3, yet cards are only at 67c. Better temps then the stock cooler got at stock clocks. And I only have 2x 240mm rads, one with push/pull.


Having a near perfect heat dispersal would require quite a lot of room and fan noise when going multicard. Also keeping your room cool enough to dissipate the heat stored would be mandatory.
Edited by DzillaXx - 5/11/13 at 10:38pm
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post #248 of 458
While the D5's have lower pressure than the MCP35's saying that they have very low pressure is a bit much. A single D5 will handle 95% of all rigs here on OCN I bet. And IMO a 20C delta is just fine (my water temp usually runs about 30C or so and 50C is still a heck of a lot better than the 70C+ you'll get on air)...
post #249 of 458
^^Eric, that was regarding big loops. If someone i using quad D5's you know its a big loop and that's why they had to use quad pumps. In a case like that, one 35X2 would probably fit the bill just as well but at a huge cost savings.

My gpus idle at 30c ish, 33c or so and load to 45c pushing max overclocks.
Edited by tsm106 - 5/11/13 at 10:36pm
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post #250 of 458
Quote:
Originally Posted by tsm106 View Post

^^Eric, that was regarding big loops. If someone i using quad D5's you know its a big loop and that's why they had to use quad pumps. In a case like that, one 35X2 would probably fit the bill just as well but at a huge cost savings.

My gpus idle at 30c ish, 33c or so and load to 45c pushing max overclocks.

Well if that's the case, a PMP-500 will fit that bill and save you even more, lol.

You live the desert don't you?
 
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