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Old 02-May-2007, 12:08   #4151
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The two pictures have grass shadows, softshadows , I think . Iis a DX 9 render feature
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Old 02-May-2007, 12:21   #4152
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Originally Posted by aeryon View Post
or maybe you think it will be in front of G71. so what's the point ?
There are no newer drivers for a couple of cards in that bench. especially at the time of that bench.
Besides, the x2900's tested now aren't tested with release drivers as well...
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Old 02-May-2007, 12:44   #4153
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Originally Posted by Kaotik View Post
http://www.hisdigital.com/html/produ...d=304&view=yes
Was that one posted already? HIS has 2900XT on their site now
That's sweet.

My two latest cards have been HIS, and I'll probably buy one this time too.

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VIVO Cable
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Nothing about a 8 pin "converter" though. I hope they'll include one.
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Old 02-May-2007, 13:00   #4154
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Originally Posted by Unknown Soldier View Post
I know what the black box is, but there was no confirmation till just late last night, that it came with the 2900. Its now on HIS' site. After I posted..

Interested in the 5.1 audio though. I dont understand how they have will audio, with a DVI to HDMI adapter.
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Old 02-May-2007, 13:02   #4155
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I know what the black box is, but there was no confirmation till just late last night, that it came with the 2900. Its now on HIS' site. After I posted..

Interested in the 5.1 audio though. I dont understand how they have will audio, with a DVI to HDMI adapter.
audio on the hdmi connector. there is more than enough bandwidth for video + audio on the dvi connector used.
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Old 02-May-2007, 14:05   #4156
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Fudzilla wrote that 2900XT in CrossFire scores 13100 in 3DMark06, I would expect more, alot more.
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Old 02-May-2007, 14:30   #4157
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Originally Posted by neliz View Post
audio on the hdmi connector. there is more than enough bandwidth for video + audio on the dvi connector used.
Yes, but there won't be an HDMI connector. There will be a DVI connector with a dongle. And DVI doesn't carry audio. How does the audio signal manage to get as far as the dongle?
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Old 02-May-2007, 14:34   #4158
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Yes, that is my question. Id rather just have a HDMI connection already. I bought a DVI>HDMI adapter years ago, hurry up an adopt it.
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Old 02-May-2007, 14:37   #4159
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Originally Posted by Dalton Sleeper View Post
Fudzilla wrote that 2900XT in CrossFire scores 13100 in 3DMark06, I would expect more, alot more.
1600x1200 8xmsaa?
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Old 02-May-2007, 14:38   #4160
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Originally Posted by nicolasb View Post
Yes, but there won't be an HDMI connector. There will be a DVI connector with a dongle. And DVI doesn't carry audio. How does the audio signal manage to get as far as the dongle?
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Originally Posted by Xmas View Post
It works because HDMI is backwards compatible to DVI, and the graphics card can query device capabillities. So the link will start in "DVI compatibility mode", and when a HDMI capable device is detected the graphics card will add audio output (which is interleaved in the digital stream, so no additional pins are required).

Using a DVI-I connector on the card is the best choice because it can drive DVI single and dual link, HDMI single and dual link, and analog VGA.
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Old 02-May-2007, 14:44   #4161
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Originally Posted by Nebula View Post
Interesting, the 8800GTX ss has better image IQ, the fire has black borders (like it is not translucent) on 2900XT. Also the 8800GTX ss seems sharper even though the imagefile is much more compressed.
Well, I haven't played Stalker at all, but from playing Oblivion, that difference really looks like the difference between HDR and no HDR.
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Old 02-May-2007, 14:47   #4162
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Edit: whatever arnold said!
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Old 02-May-2007, 14:50   #4163
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Excellent slide, Topman!

Ouch, it looks like they abandoned 32-bit MCs! That would go a long way explaining the horrible GDDR4 XTX benchmark numbers of DT. I suppose they had no choice with a 512-bit bus?
Return to 64-bit channels is definitely very curious... I presume this means that each pair of chips in a channel is spread over both sides of the board, i.e. back-to-back, instead of sat side-by-side. I say this because the 3-3-2 arrangement looks awkward for 2 (out of the three) side-by-side pairings.

As to explaining the GDDR4 XTX numbers, weren't there rumours of a broken memory controller? If there are no actual XTX boards in the wild now, and all that's out there are old, partly broken prototypes, then...

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Old 02-May-2007, 15:01   #4164
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I can now make out what's going on with the texture unit, working down through it, left-to-right:
  • 4x TA unit for vertex or texture fetch (prolly unable to do LOD/Bias, filter-specific calculations?)
  • 4x fp32 vertex fetch or fp32 texel fetch
  • 4x TF units
  • 16x fp32 texel fetch (might be usable for vertex fetches?)
  • 4x TA units for filtered texture addressing (cannot be used for vertex fetch addressing)
Hope that's right...

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Old 02-May-2007, 15:05   #4165
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Originally Posted by silent_guy View Post
There should only be a few clock cycles delay between entering and leaving the crossbar itself. So in that case, assuming no stalls, the difference is entirely in the propagation delay. Worst case, that would be double for a ring? In practice, I expect it to be less. But even if it's only, say, 30% more instead of 100%, that's a lot of additional buffering.
OK, for the worst case, it would seem we're talking about 40 clocks + 200 for DDR = 240 versus 280 in total for the ring bus.

Is that reasonable?

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Old 02-May-2007, 15:09   #4166
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Quote:
Originally Posted by Jawed View Post
I can now make out what's going on with the texture unit, working down through it, left-to-right:
  • 4x TA unit for vertex or texture fetch (prolly unable to do LOD/Bias, filter-specific calculations?)
  • 4x fp32 vertex fetch or fp32 texel fetch
  • 4x TF units
  • 16x fp32 texel fetch (might be usable for vertex fetches?)
  • 4x TA units for filtered texture addressing (cannot be used for vertex fetch addressing)
Hope that's right...

Jawed
And would you be so kind to compare vs G80 texturing power?
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Old 02-May-2007, 15:10   #4167
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Does that mean, that any order of vertex fetched texture filtering will be done through a Geometry Shader run code?
Much like the lack of FP16 box filtering in R5x0, were custom one have to be coded, then.
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Old 02-May-2007, 15:12   #4168
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Originally Posted by chavvdarrr View Post
And would you be so kind to compare vs G80 texturing power?
At the the same time, R580 too.
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Old 02-May-2007, 15:51   #4169
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Quote:
Originally Posted by Jawed View Post
OK, for the worst case, it would seem we're talking about 40 clocks + 200 for DDR = 240 versus 280 in total for the ring bus.

Is that reasonable?
You mean 40/80 cycles for propagation across the die and for all the MC related scheduling? According to Bob, the 40 would be too low, right? Where does the 200 come from?

Anyway, if your numbers are reasonable, it's a 16% buffering penalty just for transport.
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Old 02-May-2007, 15:57   #4170
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Originally Posted by fellix View Post
Does that mean, that any order of vertex fetched texture filtering will be done through a Geometry Shader run code?
Much like the lack of FP16 box filtering in R5x0, were custom one have to be coded, then.
Being a unified architecture, all kinds of fetch/filter are available to all kinds of shader.

So geometry or vertex or pixel shaders can perform vertex fetches or texture fetches or bilinearly (or better) filtered fetches. On Int8, fp16 or fp32 data formats.

I'm heading out now...

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Old 02-May-2007, 15:58   #4171
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Originally Posted by IbaneZ View Post
That's sweet.

My two latest cards have been HIS, and I'll probably buy one this time too.
I've been told that HIS is still playing with final clockspeeds. It looks like they're going to clock their HD2900XT a bit higher than reference clocks.

R600 is in full mass production at the moment and retailers should all have their cards at the 14th of May in time for the launch.
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Old 02-May-2007, 16:07   #4172
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Originally Posted by Dalton Sleeper View Post
Fudzilla wrote that 2900XT in CrossFire scores 13100 in 3DMark06, I would expect more, alot more.
The 8800 Ultra doesn't score much more than that on an X6800. Once you get in that range it's all about the CPU.
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Old 02-May-2007, 16:24   #4173
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Originally Posted by CJ View Post
I've been told that HIS is still playing with final clockspeeds. It looks like they're going to clock their HD2900XT a bit higher than reference clocks.

R600 is in full mass production at the moment and retailers should all have their cards at the 14th of May in time for the launch.
Could it be that Ati wants to clock it to 750 just to keep it at 225w ? Not many out there with a 8 pin psu.
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Old 02-May-2007, 16:51   #4174
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You know, I for one am getting really tired of the whole "Here some scores with no specks or settings provided" or my new favorite "Here is one screenshot with FRAPS on". IT. IS. SO. POINTLESS.
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Old 02-May-2007, 16:56   #4175
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Well, the NDA is still too heavy to lift.

All I want now is a [very] high-detail shot of the R600 die. Sadly, don't have one of G80.
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