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AMD To Launch RV770 On June 18th

Caporegime
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AMD has just confirmed the marketing name for RV770 yesterday which is no surprise to anyone, the Radeon HD 4800 series. RV770PRO is Radeon HD 4850, RV770XT is Radeon HD 4870 and R700 is Radeon HD 4870 X2. AMD will be shipping RV770 GPUs to AIB by end of this month and you can expect different card designs from the manufacturers at launch. AMD is set to launch the Radeon HD 4850 on June 18th and it is definitely a hard one with retail availability on the same day. Radeon HD 4870, however, will be launched a week later on June 25th with retail availability in July due to GDDR5 availability. Radeon HD 4870 X2 will come later in Q3. As for the clocks, we won't be revealing them yet but the RV770XT core clock is not going anywhere above 800MHz.


source
 
Caporegime
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Can a mod please change this into the Official RV770 thread please.



RV770XT to e-tail for $229


ATI's Radeon RV770XT-based cards powered with GDDR5 memory will end up with a $229 suggested e-tail price and it’s likely to drop quickly to under the $200 mark. This is the price for a 512MB card that should be the top of the mainstream / performance line of ATI RV770 generation.

Naturally, the RV770PRO card with 512MB of GDDR3 memory will end up cheaper and it will launch at under $200 suggested e-tail price.

RV770XT will replace Radeon 3870 512MB cards on the market, while RV770PRO should replace 3850 cards of live on top of them.

We believe that ATI won’t kill its affordable Radeon 3870 and 3850 cards and will make them co-exist with RV770 based products, at least for the time being.
 
Caporegime
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RV770 Preliminary Performance Revealed


We have received some preliminary performance numbers from CJ for Radeon HD 4870 and 4850 vs the current GeForce 9800 series lineup. Apparently, RV770XT with GDDR5 (160W) will run 1.3X faster than RV770PRO with GDDR3 (110W). Two key factors that contribute to the difference in performance between the 2 cards: a 100MHz core clock difference and a faster GDDR5 at 1.96GHz vs GDDR3 at 1GHz. Interesting, RV770PRO will run 1.25X faster than GeForce 8800 GT/9800 GT while RV770XT will run 1.25X faster than GeForce 9800 GTX.
 
Caporegime
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In mid June, AMD will launch another new series of graphics cards. These new series HD 4800 series will have more muscle to challenge the NVIDIA GeForce cards.

It is said that the HD 4850 is 20% faster than the 8800GT and HD 4870 is 20% faster than the 9800GTX.

As we all know, GeForce 9800GTX is only 10% faster than the 8800GT. We are able to get a clearer picture of the performance of these 4 cards as shown in the diagram below.

In 3DMARK06, Radeon HD 4870 will be 32% faster than 8800GT, 22% faster than 9800GTX and 12% faster than 4850.

AS for 4850, it will be 20% faster than 8800GT and 10% faster than the 9800GTX.


hd4850-4870.jpg


*sigh*
 
Caporegime
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The spec are only unconfirmed specs though, sites usually do put up stuff like this to get some attention =/

The mem situation is confirmed. I dought we will know the specs until a week before release now that Nvidia have shown theirs (apart from clock & mem speeds). AMD are prolly wetting them selves at the minute to be honest.
 
Caporegime
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they have to pull something out of the back if its not to late i think the cards might be in production now hope they are 512 bit


Indeed.


But still 1gb of GDDR5 on 256 bit still offers a kick ass amount of bandwidth. Though depending on how good the card is itself it could be a wastefull amount.
 
Caporegime
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Apparently the GDDR5 is gonna be clocked at around 3.9GHz DDR, that means that it has more bandwidth on its 256-bit bus than the 2900 XT did on its 512-bit bus.

That is assuming these guys are correct (again):

http://www.nordichardware.com/news,7755.html


Well thats basically confirmed.


AMD have said that they have gone to Qimonda for GDDR5 and they make them at 3.6 GHz, 4.0 GHz, and 4.5 GHz clock speeds. And infact the chips have already been shipping in volume to AMD.
 
Caporegime
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9800GTX is faster than the 3870X2 in most games.

20 fps at max.


If 4850 is faster than the 3870X2 then it would be up againt the 9800GTX, as you said and that would mean 4870 Vs the rest.


Looking at those numbers in the chart it would be 4850 Vs 9800GTX and 4870 inbetween GTX 260 & 280.

Overclock the 4870 and kick the crap out of the GTX 280 for half the price. Overclock the 4850 to 4870 and you have one for $100 less. :)


We will just have to wait and see for proper numbers to come out.
 
Caporegime
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Looking at the numbers on what chart? Are you talking about the spec sheet?

If you had compared raw specs for r600 and G80 you would have expected (as we all did at the time) the r600 to be much faster. After all, it had far more shader piplines, higher theoretical FPU performance, and better memory bandwidth.

Also, you can't simply 'overclock the 4850 to 4870'. For one thing, it has different memory installed, as well as other differences.


Yep.


Dont see why not. Only thing that is different is the type of memory. Overclock the mem to a speed where there is no difference between the performance of that memory and the GDDR5 on the 4870 and should all be good. Both use the same cores just the 4750 is clocked lower. And the 4850 will come in different ram flavours. 256 and 512 prolly vs 512 and 1gb on the 4870.





I don't mind, I'm off sick so I need to be entertained :)


Get yourself one of those mobilty scooters, then you can be in work and entertained at the same time. :D







Hmm Azza. If the X2 3870 is faster than the G80 GTX then where did you pull that the 9800GTX is faster than the X2?. Unless you're talking about small resolutions with no AA.

At small resolutions the CPU speed is more of a factor. Also, with the limited interface of the G92 GTX, at high resolution when you add AA the 256bit interface cripples with the 9800GTX in some titles.

So, when the G80 GTX is a faster card than the G92 GTX and the X2 3870 is faster than the G80 GTX, you are saying the 9800GTX is faster than the slowest part? :confused:.





Whaaaaaa calm down.


I just read the graphs like a ****. :o


My bad.
 
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