The Official RV630/RV610 Rumours & Speculation Thread

[leoneazzurro]

These data could come from Sapphire, there is a link directy in their site to an Excel file with specifications. No 2900 XTX listed there, anyway. Here's the link:

http://www.sapphiretech.com/us/productfiles/matrix-vga-1.xls

 

[Geeforcer]

Why are the two HD 2600 XT PCI-Express SKU's so different when they share the same designation ?

I mean, one has 2.2GHz GDDR4, while the other sticks with 1.4GHz GDDR3. That's a huge (12.8 GB/s) gap in available bandwidth.
Wouldn't a little more coherence in the naming scheme be less confusing to the prospective buyers ?

I was just thinking that same thing. Unless they had two different versions of 2600 XT and were not sure which of them would get adopted, the naming makes little sense. If both are coming to market, they should follow the cues from the last generation and name the GDDR4 version XTX or something.

 

[AnarchX]

The core(-clock) determines the name of a gk by ATi, so they can call the GDDR3 part 2600XT, too.

The 2600XT GDDR3 could be very hard opponent for 8600GT. :smile:

 

[Arty]

Are there any reviews for the HD2600 and 2400 boards?

US

I believe the NDA for them expires in "late June".

Edit: Yup, thats correct.

 

[Bjorn]

Late June. Nice family launch..

 

[PSU-failure]

http://img218.imageshack.us/img218/5830/000000057099a410ffx0.png

http://img218.imageshack.us/img218/6717/000000057097a5d13af4.png

http://www.matbe.com/actualites/16078/ati-amd-radeon-hd-2600-2400-2900-xt-xtx-pro/

Site says that this data comes from Sapphire.

They're visible to anyone on HD2900XT's page by clicking "specifications" button, it's an XLS file.

I wonder how well will RV630's only 4 ROPs shine though... R600 doesn't seems to be too much limited here given various benchmarks results, but 1/4 is really low.

Anyway, it will be a great physics processing board

 

[Sound_Card]

No 256bit part at all on that chart.

I also dont see exactly how the HD 2600XT is half the performance of the HD 2900 either. It looks more like 1/3 of the performance.

 

[PSU-failure]

It looks more like 1/3 of the performance.

Roughly 1/2 shaders and texture filtering power, 1/4 fillrate and 1/3 memory throughput.

Sum up: excellent parallel calculator, but will it be enough to surpass G84's ridiculous performance?

 

[Kaotik]

No 256bit part at all on that chart.

I also dont see exactly how the HD 2600XT is half the performance of the HD 2900 either. It looks more like 1/3 of the performance.

Is that a surprise? It was known forever that RV630 has 128bit membus, and no amount of whishing could ever change that.
There will hopefully be RV670 or something with 256bit membus later on

 

[Sound_Card]

Is that a surprise? It was known forever that RV630 has 128bit membus, and no amount of whishing could ever change that.
There will hopefully be RV670 or something with 256bit membus later on

no no no and no.:smile:

I was saying I'm shocked that their is no 256bit card offered by ATi at all! Not exactly refering to a 256bit RV630.

Huge gap from 128bit to 512bit. Where does that leave consumers? I'm actully disgusted ATi is not offering performance class cards to the market untill RV670.

Also a huge gap from 16 ROP's to 4 ROP's. Again, thats sad.


With no introduction of a XL part this time around or any perofrmance part for that matter, it's as if ATi is saying, "Hey, go buy a 320mb GTS."


and ya, the HD 2600XT on paper looks like 1/3 of the HD 2900 performance. What about a SKU that is 1/2? Or what about a SKU that is 3/4? Why do we have to wait untill Q3 when people have already been waiting 6+ months?

 

[Dave Baumann]

Roughly 1/2 shaders and texture filtering power, 1/4 fillrate and 1/3 memory throughput.

Its 1/2, 3/8, 1/4 (Texture, Shader ALU, ROP).

 

[Geeforcer]

Here are some theoretical performance projections for 800/1.1GHz 2600XT Vs 8600 GTS done by taking 2900 results and dividing them by unit and frequency ratios. I used 750/825 for 2900 XT clock and numbers from Hothardware and Anand's R600 and G84 reviews.

 

[nicolasb]

Not sure if this has been posted already, but according to Fudzilla, Sapphire will be launching a passively cooled 2600XT in July.

If that's right it should be a good choice for an HTPC system.

http://www.fudzilla.com/index.php?option=com_content&task=view&id=1111&Itemid=1

 

[Geeforcer]

What happend to 2600 XT with GDDR4? It's not going to go the way of 2900 GDDR4 cards, is it?

 

[Sound_Card]

What happend to 2600 XT with GDDR4? It's not going to go the way of 2900 GDDR4 cards, is it?

I dont know if those charts are true or not for Sapphire, but Gecube has a GDDR4 SKU.

http://www.gecube.com/products-detail.php?prod_cat_pid=193&prod_cat_id=196&prod_id=66137

 

[Geeforcer]

Thanks. So it is 256 or 512MB?

Sapphire also has specs for 2600XT GDDR4 SKU on their site, but it's missing from Fudo's table.

 

[Aerows]

Looks like we will see some strong competition in the performance sector. Will the latency of GDDR4 in any way affect it's performance @ 2.2Ghz vs. the various OC'd 8600 GTS Cards GDDR3 @ 2.2 Ghz? Or is that perhaps not a factor here? It would seem to me that the 2600 "XTX" (used to differentiate from the GDDR3 version ) looks fairly powerful.

 

[Topman]

I'm expecting:
HD 2600XT GDDR3 [800/1400] >> [540/1400] GF 8600GT (129~149 US$)
HD 2600PRO GDDR2 [600/1000] >> [450/800] GF 8500GT (89~99 US$)

but i doubt
HD 2600XT GDDR4 [800/2200] <???> [675/2000] 8600GTS (179~199 US$)

hmm, UVD seems to be more powerful than the VP2...

bye

 

[Geeforcer]

Based on my quick and dirty estimates above and without considering GDDR4 issues that I hope will not come into play 2600 XTX (I like that so I am stealing it ) should be on par with 8600 GTS. However, it looks like a reversal form G80/R600 with ATI part providing similar performance in a much lower power envelope.

 

[Sound_Card]

Based on my quick and dirty estimates above and without considering GDDR4 issues that I hope will not come into play 2600 XTX (I like that so I am stealing it ) should be on par with 8600 GTS. However, it looks like a reversal form G80/R600 with ATI part providing similar performance in a much lower power envelope.

I think R600 would actully be a very power efficient chip if it were not for leakage issues with their process. Makes me think R650 may be a turn around in that department.