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Discussion on Article:
ATI Radeon HD 4800 Graphics Architecture: Long Anticipated Revenge?

Started by: khoai | Date 06/25/08 11:08:34 PM
Comments: 37 | Last Comment:  07/25/08 12:33:24 AM

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1. 
time to add game titles to the performance.

people buy new graphic cards like these obviously has 24 or 30 inch. so please add 2560x1600 resolution to your test.
[Posted by: khoai  | Date: 06/25/08 11:08:34 PM]
+ expand thread (1 answer)

2. 
It's an excellent card, no doubt about it, especially considering the price (as low as 140€ in Europe).

What I find a bit disappointing is the increased idle/peak 2d power consumption. A jump from ~20W, as it was the case with the 3870, to ~60W for the 4850 is certainly bad news for people who care about temps and noise. It is clear that the card must consume much when loaded with 3d load, it is much faster than a 3870, after all, but one would expect things to be more or less consistent with GPU generations when it comes to 2d load - things hardly change there, so why add additional watts for that...

Going a little further, the measured power draw for the 4870 is even more scarry... AMD seem to have ditched some of the power saving circuits and focuseed on raw performance this time.
[Posted by: nx  | Date: 06/26/08 04:19:23 AM]
+ expand thread (1 answer)

3. 
so what's new about that junk again?
[Posted by: muzzel Mo  | Date: 06/26/08 05:26:28 AM]
+ expand thread (3 answers)

4. 
Nice
[Posted by: Subhani  | Date: 06/26/08 06:06:21 AM]

5. 
Good Job.
[Posted by: badAXE  | Date: 06/26/08 06:38:17 AM]

6. 
Please change the first line "AMD’s graphics department ATI has not doing quite fine lately." to say "AMD’s graphics department ATI has not been doing quite fine lately."
[Posted by: Mayur  | Date: 06/26/08 07:54:04 AM]

7. 
There are way few typos on page2:
1) However, this is hardly an achievement for Nvidia as its GPU is manufactured on less advanced 0.65nm tech process.
That should be 65nm

2) It is only $299, i.e. $100 lower than the recommended price of the Nvidia GeForce GTX 260 and $130 lower than the price of the GeForce GTX 280.

The GTX280 is more than $130 costlier than 4870.
[Posted by: Stupify  | Date: 06/26/08 10:36:28 AM]

8. 
Why are ATi cards having obviously reduced visual quality in HL2? No fence on the right and broken lightning environmental fog in the back?

Also, I know that nVidia has transparency anti-aliasing (not in use in HL2 shots- on the same fence on the right- the same one that is not there in ATi shots). Is there anything like transparency aa on the ATi side?

I’m about to get hd4870 when it gets available here so I’d like to know a bit more before i commit.
[Posted by: EoDEo  | Date: 06/26/08 02:18:52 PM]
+ expand thread (3 answers)

9. 
was an very good review as well i can see why it taken alot longer to do the tests due to all the AA settings used (can you give me an pointer (wiki or somthing) on what the 4 letter modes are got an good idea what thay are tho)
[Posted by: leexgx  | Date: 06/26/08 09:05:51 PM]

10. 
I disagree about the CSAA mode quality.

8x CSAA should be roughly equal to what 6x MSAA used to be on ATI cards from Radeon 9700 to X1900 series.

16x CSAA (not 16xQ) should be equal to maybe 10x MSAA if there was one. In MOST games, it is better than straight 8x MSAA. 16xQ CSAA is roughly equal to 12x MSAA in most games. Most of the image will show nice improvements--only the areas with the least contrast among the edges will hardly show any improvement over straight 8x MSAA.

ATI's CFAA modes are just not worth it in nearly all of the newer games.. there are so many review sites pointing out how those CFAA modes cause the whole image to be excessively blurry especially near the edges, especially if heavy post-processing effects are used (see Unreal3 engine games).

And the AF quality on R700 cards are still not any better than on R600 cards (still angle-dependent at 45 degree angles).

Regardless, I am so impressed by the performance of straight 8x MSAA on ATI cards--in quite a few games, the 4870 actually beats out the GTX 280 when it comes to sheer 8x MSAA!
[Posted by: Bo_Fox  | Date: 06/26/08 10:52:30 PM]

11. 
Wow this is going to be next GPU for sure.
[Posted by: Stalker  | Date: 06/27/08 12:43:07 AM]

12. 
looks lyk ATi hit a ome run with this thing lets see wot nvidia can do....

w8in for real world tests (on games) soon....
[Posted by: nick  | Date: 06/27/08 07:30:22 AM]

13. 
41 watt in idle ?
doesn't 4850 drop voltage of gpu ?
that's bad, since 3870 consumes only 19 watt.
i can't accept 2x more in idle
[Posted by: MiK  | Date: 06/27/08 11:16:27 AM]

14. 
Say thanks to AMD_Ati for drop price .
[Posted by: Black_code  | Date: 06/27/08 03:57:44 PM]

15. 
Paid $200 for a 9600GT in Feb,08-now you can get a 9800GTX for that.WTF?I would be lucky to get $75 for my 9600GT on feebay now.Thanks for assfucking your customers again Nvidia!!
[Posted by: pissed  | Date: 06/27/08 05:11:41 PM]
+ expand thread (3 answers)

16. 
fyi,
"We have been waited" should be "We have been waiting" or "We have waited".
"We have been waited" is wrong.
[Posted by: moosebite  | Date: 06/27/08 09:56:50 PM]

17. 
thx for the nice article

page 14 mentions "The GPU temperature is 62°C when idle and 86°C under 3D load."
i did a bit of browsing and apparently most 4850 implementations have almost the same cooler...

did anyone find a 4850 with a better cooler? (maybe even a 2 slot)
[Posted by: dragos  | Date: 06/28/08 10:01:39 AM]
+ expand thread (2 answers)

18. 
Amazing 19 times faster transcode with Ati HD4800 (H264) than C2D E8500 !!!
[Posted by: Black_code  | Date: 06/28/08 10:13:41 PM]

19. 
Bandle = bundle?
[Posted by: Tommy  | Date: 07/01/08 04:01:36 AM]

20. 
It is a very nice and profound review of the new architecture.
Though i must say that i dislike that a fact is so easyly accepted and that is that adapters overpowered the slow and unoptimised code of today's games.

Why is this important?

Because the game developers are getting used to it and consequently they spend less and less time with development and so to speak the rest of the team (sound, story, gameplay...) is motivated to hurry also.
[Posted by: taras bulba  | Date: 07/02/08 08:54:37 AM]

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