ATI Radeon R600

R600 Technical Aspects 3

http://www.overclock3d.net/gfx/articles/2007/05/15150008899l.jpg

HD - the buzzword

Nowadays it's all about High Definition and getting the very best image from your hardware as possible. ATI have upgraded the HD performance of their latest cards and now HDCP over two monitors is supported (something 8800 series don't do). As mentioned before an HDMI converter is included with the 2900 XT and ATI have gone with HDMI version 1.2, not including Dolby Digital Plus, DTS HD Master or Dolby TrueHD. However if your an HTPC enthusiast you are going to have a decent discrete APU (sound card to you and me - Ed) for your audio so I see the 5.1 sound card as a pretty neat if not slightly useless addition to the 2X00 series.


AVIVO


The new AMD theater 200 chip gives the R600 cards a great boost. Not only does it support 5.1 sound (stereo in previous versions) but it is also a UVD (Universal Video Decoder) & a AVP (Advanced Video Processor).
UVD provides direct hardware decoding of HD-DVD & Blue-ray standards. It also provides extra features for better picture quality when watching videos. These features are frequency transform, pixel prediction and deblocking, bitstream processing/entropy decode.

Because the video and sound are not seperated the card conforms to the protected content output path, which also makes it compliant with Windows Vista Premium Logo requirements.
The audio controller supports formats of 32kHz, 44.1kHz and 48kHz 16-bit PCM stereo & also supports AC3 compressed multi-channel audio (allowing Dolby Digital & DTS).

ATI Avivo™ HD Video and Display Platform
  • Two independent display controllers
    • Drive two displays simultaneously with independent resolutions, refresh rates, color controls and video overlays for each display
    • Full 30-bit display processing
    • Programmable piecewise linear gamma correction, color correction, and color space conversion
    • Spatial/temporal dithering provides 30-bit color quality on 24-bit and 18-bit displays
    • High quality pre- and post-scaling engines, with underscan support for all display outputs
    • Content-adaptive de-flicker filtering for interlaced displays
    • Fast, glitch-free mode switching
    • Hardware cursor
  • Two integrated dual-link DVI display outputs
    • Each supports 18-, 24-, and 30-bit digital displays at all resolutions up to 1920x1200 (single-link DVI) or 2560x1600 (dual-link DVI)1
    • Each includes a dual-link HDCP encoder with on-chip key storage for high resolution playback of protected content2
  • Two integrated 400 MHz 30-bit RAMDACs
    • Each supports analog displays connected by VGA at all resolutions up to 2048x15363
  • HDMI output support
    • Supports all display resolutions up to 1920x10801
    • Integrated HD audio controller with multi-channel (5.1) AC3 support, enabling a plug-and-play cable-less audio solution
  • Integrated AMD Xilleon™ HDTV encoder
    • Provides high quality analog TV output (component/S-video/composite)
    • Supports SDTV and HDTV resolutions
    • Underscan and overscan compensation
  • HD decode acceleration for H.264/AVC, VC-1, DivX and MPEG-2 video formats
    • Flawless DVD, HD DVD, and Blu-ray™ playback
    • Motion compensation and IDCT (Inverse Discrete Cosine Transformation)
  • HD video processing
    • Advanced vector adaptive per-pixel de-interlacing
    • De-blocking and noise reduction filtering
    • Edge enhancement
    • Inverse telecine (2:2 and 3:2 pull-down correction)
    • Bad edit correction
    • High fidelity gamma correction, color correction, color space conversion, and scaling
  • MPEG-2, MPEG-4, DivX, WMV9, VC-1, and H.264/AVC encoding and transcoding
  • Seamless integration of pixel shaders with video in real time
  • VGA mode support on all display outputs

ATI have added a Universal Video Decoder to r600 that handles the entire decode process, offloading the decode from the CPU onto the GPU. As we have discussed in earlier articles the power of the GPU is only now coming to the fore and hardware manufacturers are realising it's potential. ATI enhances what is already out there by getting r600 to do it all:

r600 decoding

r600 decode 1 r600 decode comparison

ATI have stepped up in this department and it will be interesting to see how this measures up against G80 in real terms. Certainly this is a step up from ATI and good to see that decoding and playing HD is easier for everyone.


Conclusion

In conclusion AMD/ATI have implemented a very clean and well-rounded DX10 card - and we think it's about time too. The review of the 2900 XT is on it's way soon but already we can see that the 2X00 series are a good competitior for the 8800GTS cards. The only thing that I am a little disappointed about is that they haven't come out all guns blazing with a card that blows nVidia out of the water - but hopefully that's to come.

The High-Defition aspects of the 2X00 series are excellent and as we progress we will see more computers moving into the living room. AMD have made it clear with 690G that this is their intention and it's great to see the top-end following this through too.

Would I buy one...you'll have to wait for the full review...

Discuss in our Forums

Additional Links

Bit-Tech have an awesome write-up of r600 and it's architecture so have a good read if you're interested.
techPowerUp! have a nice read too
AMD/ATI have lots of info on their site
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Most Recent Comments

16-05-2007, 14:00:16

equk

The long awaited and hugely anticipated ATI card is finally here. We have been given access to information and media documenting ATI's first DirectX10 graphics card. The technical specifications look promising, with some features never before seen on a GPU, making these cards innovative and one of a kind.

This article is designed to run through a little bit of the technical information without confusing the hell out of you. It is a short and sweet introduction into r600 and it's architecture and is meant to cover it in an understandable way.



I've just finished my first article (with the help of Kempez) for OC3D. I hope people find it interesting and informative.

Please Discuss Quote

16-05-2007, 14:03:07

FarFarAway
Great work mate. Nice and simple and easy to understand while getting the key points across

Hope everyone enjoys reading it Quote

16-05-2007, 15:00:09

robump
Great article, cant wait for the review.

ThanksQuote

16-05-2007, 16:09:29

Toxcity
Good work on your first write up matey!

Once again I cannot wait for the view, equk.. are you doing the review too?Quote

16-05-2007, 16:32:16

FarFarAway
No I'm doing that Quote

16-05-2007, 16:35:56

Toxcity
Quote:
Originally Posted by name='Kempez'
No I'm doing that
LMAO

Suprise suprise.. Kemp always gets his hands on the best stuff!

Good on ya mate!Quote

16-05-2007, 16:37:28

mrapoc
top banana!Quote

16-05-2007, 17:57:19

PP Mguire
Well written review. I enjoyed reading it.Quote

16-05-2007, 18:23:50

Nagaru
A good read, seems like ATI/AMD are really pushing the envelope with sound, Avivo etc.

Two things caught my eye though, at the bottom of page 4 it says.

ATI have talked about the ring-bus architecture before, but this time they've given their card 512mb to play with - a worlds first.



I think you mean 512 bits, maybe?

At the top of page 5 it says.

However if your an HTPC enthusiast you are going to have a decent discrete GPU for your audio so I see the 5.1 sound card as a pretty neat if not slightly useless addition to the 2X00 series.



Do you maybe mean discrete sound card?

I look forward to your next article. Quote

16-05-2007, 18:36:31

FarFarAway
Yep my bad - should be bit and APU (probably just sound card is better)Quote

16-05-2007, 19:51:18

equk
Thanks for the feedback

I think the onchip sound is good & means ATI can market it a bit better, saying it's one of a kind, while also gaining conformity for both protected content and also Windows Vista Premium Logo.

Quote:
Originally Posted by name='equk'
Because the video and sound are not seperated the card conforms to the protected content output path, which also makes it compliant with Windows Vista Premium Logo requirements.
Quote:
Originally Posted by name='kempez'
However if your an HTPC enthusiast you are going to have a decent discrete GPU for your audio so I see the 5.1 sound card as a pretty neat if not slightly useless addition to the 2X00 series.
Altho I agree with what kempez has said, most people do already have a dedicated soundcard, all the on-chip one means tho is you don't need loads of wires and it can connect direct to new HDMI tv's.Quote

16-05-2007, 20:04:39

FarFarAway
Ye I get where you're going but it's not a premium audio chip which is a little disappointingQuote
Reply
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