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  (Source: AnandTech)

(Click to enlarge)

(Click to enlarge)
Massive demand expected by AMD for its latest graphics card

ATI, the graphics division of AMD, has launched the Radeon HD 4890 video card exclusively with 1 GB of GDDR5 RAM.

The RV790 is not just an overclocked RV770. DailyTech noticed the RV790 chip was slightly larger than the RV770 when we acquired a reference board several weeks ago. It is a new respin of the original silicon, with retrained and rearchitectured power paths for greater power efficiency. ATI engineers also used decoupling capacitors in a decap ring to increase signal integrity.

All of this enables higher clock speeds. While the Radeon 4870 has a core clock of 750MHz, the Radeon 4890 runs its core clock at 850MHz. The standard GDDR5 runs at 3.9GHz effective, and provides 124.8 GB/s of bandwidth. Several ATI graphics board partners will be launching models with core clocks running at over 1GHz using improved cooling solutions.

Power consumption is also greatly reduced. The Radeon 4890 board consumes approximately 60W at near idle loads, such as when displaying 2D graphics or working on Word or Excel documents. This cuts powers consumption by a third from the Radeon 4870, which utilizes 90W at idle.

On the flip side, maximum board power is now rated at 190W with the 4890, an increase of 30W. This is due to the higher clock speeds of both the GPU and the GDDR5 memory.

DailyTech has performed a few basic tests of the Radeon 4890, and our results show a 10%-25% performance improvement, depending on the game. The drivers in the box will work best for now, until the Catalyst 9.4 drivers are released later this month.

We have received word that there are over 50,000 Radeon HD 4890 cards already in the market. Several retailers have already sold cards to anxious fans ahead of today's launch date. The cards themselves should sell for no more than $250 at stock speeds, although we expect prices to drop slightly in a month's time. Some partners have also said that mail-in rebates for $20 will be available.

AMD recently tried to lower prices on its Radeon 4870 and 4850 cards, but its board partners believe that the performance of the Radeon 4870 is too good to lower prices further. The 1GB version of the Radeon 4870 is now selling for around the $180 mark, although it may be available for less with a mail-in rebate partly subsidized by AMD.

The primary competition for the Radeon HD 4890 will be NVIDIA's GeForce GTX 275, which is also priced at around $250. However, there will be no retail availability until April 14th, when it was originally supposed to be launched. Even so, our sources say that NVIDIA will not have the volumes that it needs to meet demand, which may end up raising prices.

Further out, ATI will be launching its first DirectX 11 parts in late summer. Some consumers may be tempted to wait for the next generation of cards with an all new architecture, but they will launch at higher prices. If you're looking for a high performance single chip video card, the Radeon 4890 may be your best bet for the next five months.

UPDATE: ATI has confirmed that the original information we received was incorrect, and the RV790 does indeed have 959 million transistors.

 

GTX 280

ATI Radeon HD 4890

GTX 275

ATI Radeon HD 4870

GTX 260 Core 216

ATI Radeon HD 4850

GTS 250

Stream Processors

240

800

240

800

216

800

128

Texture Address / Filtering

80 / 80

40

80 / 80

40

72/72

40

64 / 64

ROPs

32

16

28

16

28

16

16

Core Clock

602MHz

 850MHz

633MHz

750MHz

576MHz

625MHz

738MHz

Memory Clock

1107MHz

3.9GHz GDDR5

1134MHz

3.6GHz GDDR5

999MHz

1986MHz GDDR3

1100MHz

Memory Bus Width

512-bit

256-bit

448-bit

256-bit

448-bit

256-bit

256-bit

Frame Buffer

1GB

1GB

896MB

1GB/512MB

896MB

512MB

512MB

Transistor Count

1.4B

959M

1.4B

956M

1.4B

956M

754M

Price Point

$349

$249

$249

$179/$149

$179

$129

$129



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

Deleted posts
By daddyphatsax on 4/2/2009 9:45:26 AM , Rating: -1
I will never read your site again. Several people posted comments about the questionable math involved in the article. Now those comments have been deleted and the story has been altered. What happened to editing a news story before releasing it? And how can a journalist silence criticism from others, when that is the job of the fourth estate, to voice criticisms. You are not journalists, and you give true journalists a bad name. I call for a boycott of DailyTech!




RE: Deleted posts
By Darth Farter on 4/2/2009 9:48:54 AM , Rating: 2
Personally I've been on this article and haven't seen any comments, let alone deleted ones, while I was trying to log in (had password trouble for ~14min).

I was going to post this correction: 956M for the 4890 should be 95 9 M


RE: Deleted posts
By Warren21 on 4/2/2009 9:52:47 AM , Rating: 2
Yeah, the RV790 does feature 3M more transistors than the RV770. I'd like to try OC'ing one but a new GPU isn't in the budget :(


RE: Deleted posts
By Jansen (blog) on 4/2/2009 11:29:40 AM , Rating: 3
The PressDeck that Anand and I got both said 956 million. I am waiting for clarification from ATI.


RE: Deleted posts
By Korr on 4/2/2009 9:54:13 AM , Rating: 5
The author made a small math error and people called for his head. Now that the mistake has been removed and thus rendering the comments irrelevant, people like you are still whining for some reason.

I come back to DT after a year hiatus and it seems like the drama queens are still out in full force.


RE: Deleted posts
By FingerMeElmo87 on 4/2/09, Rating: 0
RE: Deleted posts
By ttowntom on 4/2/2009 9:55:26 AM , Rating: 5
The editors here have said they can't edit or delete comments. If anything disappeared, it was probably because they reissued the story, and any comments were attached to the old one.

As for journalists "silencing criticism by others", I guess you never listen to CNN or MSNBC?


RE: Deleted posts
By Proxes on 4/2/09, Rating: 0
RE: Deleted posts
By keegssj on 4/2/2009 10:46:33 AM , Rating: 2
Apparently they did re-issue the story.

I got an RSS feed notices for this article. The first one was empty, and this one contained the article.


RE: Deleted posts
By keegssj on 4/2/2009 10:47:18 AM , Rating: 2
Correction - I got two RSS feed notices for this article...

Duh.


RE: Deleted posts
By FITCamaro on 4/2/2009 10:48:39 AM , Rating: 2
My post was deleted. But that's probably because I made the comment of seeing if someone wanted to buy my current GPUs because I want a 4890. Was mostly a joke but I understand why it was deleted.


RE: Deleted posts
By AnnihilatorX on 4/2/2009 9:56:28 AM , Rating: 3
Well if the editor read the comments and saw a dire calculation error, you would expect him to alter the article no? After correction, it's best to delete the comments since otherwise they would only confuse others.


RE: Deleted posts
By TomZ on 4/2/2009 10:05:07 AM , Rating: 3
I think the OP has a point. If an article is posted, and readers make comments, DT should not republish the article in a way that purges the reader comments. It's disrespectful to the time/effort the reader invested posting them. And after all, a lot of the value of DT is contributed by comments posted by readers.


RE: Deleted posts
By Brandon Hill (blog) on 4/2/2009 10:25:59 AM , Rating: 5
The comments weren't deleted on purpose. The comments were purged after the article was pulled to make corrections and was then reposted.

This is not an issue about silencing readers. As you can tell from the comments on our articles, we don't go around deleting posts -- we rely on reader moderation to handle posts that people find offensive/unworthy.

If DailyTech wanted to purge all negative comments, there'd be no comments left ;)

Again, there was nothing malicious about what happened.


RE: Deleted posts
By FITCamaro on 4/2/2009 12:07:44 PM , Rating: 2
Thanks for clearing that up Brandon.


RE: Deleted posts
By TomZ on 4/2/09, Rating: 0
RE: Deleted posts
By Reclaimer77 on 4/2/2009 2:29:34 PM , Rating: 5
LOL Tom get over yourself.

Most of us take 3 seconds to make a post, and the relevance of them is reflected in that. There is no mass DT conspiracy to silence fanbois from making flamefests about why this card or that is better and what FUD reason they think that is so. That's been going on for years here and I doubt they would decide to NOW do something about it.

Your precious post that took 2 seconds to type got purged. Get over it, and if you don't like it, make your own website where the words of children fighting about PC hardware can live on forever in E-infamy.


RE: Deleted posts
By TomZ on 4/2/09, Rating: -1
RE: Deleted posts
By Reclaimer77 on 4/2/2009 4:23:09 PM , Rating: 2
quote:
I'm just saying there's no real good reason for DT to be purging comments when an author updates an article.


Says who ? His reasons seemed reasonable to me. He even explained himself an appologized. Are you guys THAT self important ?


RE: Deleted posts
By TomZ on 4/2/09, Rating: -1
RE: Deleted posts
By Hieyeck on 4/2/2009 9:57:37 AM , Rating: 1
Correction: the entire post was deleted. I already read this article and when I come back an hour later, it's marked 'NEW!' again. But you should be used it by now, considering they still haven't fired Mick. But hey, bad journalism and the fight between him and Asher are a welcome respite to the boredom of work :)


RE: Deleted posts
By Parhel on 4/2/2009 12:19:40 PM , Rating: 2
quote:
But hey, bad journalism and the fight between him and Asher are a welcome respite to the boredom of work


Is Asher gone? I haven't seen any posts or articles from him in a while . . .


RE: Deleted posts
By amanojaku on 4/2/2009 9:57:45 AM , Rating: 2
Considering how your original post, which was removed, was downrated to -1 I'd say the other readers agree with the author, or at least understand the mistake he made. Quit whining and move on.


RE: Deleted posts
By Jansen (blog) on 4/2/2009 10:08:25 AM , Rating: 5
The article was pulled in order to address several concerns. When that happened, the article was effectively deleted.

When we posted the revised version, it had a new article number and was treated by our news software as a completely different article.

There was no malicious intent. I made a mistake, and I fixed it. In fact, I posted a thank you on the original article.


RE: Deleted posts
By Proteusza on 4/2/2009 10:19:48 AM , Rating: 2
What kind of comments were deleted? What maths was pointed out as being wrong?

I'm not being critical, I didnt see the original article so I want to know what the fuss is about.


RE: Deleted posts
By strikeback03 on 4/2/09, Rating: 0
RE: Deleted posts
By Jansen (blog) on 4/2/2009 11:25:05 AM , Rating: 2
It may have been moderated down to -1, in which case it would have been minimized, depending on your settings.

DailyTech does not delete comments.


RE: Deleted posts
By monomer on 4/2/2009 12:09:19 PM , Rating: 3
I actually noticed a deleted thread I had commented in about a month ago. It wasn't anything too inflammatory, so I think it was just a bug in the Website.

If I look at my profile, I can see a link to the post, but when I go to the location, there's no thread:

http://www.dailytech.com/Article.aspx?newsid=14501...


RE: Deleted posts
By Jansen (blog) on 4/2/2009 12:26:42 PM , Rating: 2
I think it is a bug, and I will pass it on.

It had a rating of 2, and should not have had problems. I tried accessing myself, but cannot find it either.


RE: Deleted posts
By Jansen (blog) on 4/2/2009 7:43:27 PM , Rating: 3
It has been passed up to the webmaster. Please email me if you find other threads are no longer available.


RE: Deleted posts
By Amiga500 on 4/2/2009 2:25:50 PM , Rating: 2
Quit yapping like a baby.

Mistakes fixed, therefore now irrelevant comments can be removed. Mine was one of the now irrelevant comments - and I'm happy to see a revised article.


RE: Deleted posts
By daddyphatsax on 4/2/09, Rating: -1
RE: Deleted posts
By ClownPuncher on 4/2/2009 6:35:24 PM , Rating: 2
Your soap-box is going to collapse, all the tears have weakened it structurally.


RE: Deleted posts
By Jansen (blog) on 4/2/2009 7:40:00 PM , Rating: 5
The decision was made by Brandon to pull the initial post. We will certainly take reader input into account in the future.

FYI, I had already rewrote part of the article to address some comments from AMD and readers. Those changes got lost when the article was pulled. You are not the only one who was inconvenienced, unfortunately.

I do hope you understand that ultimately, we were just trying to make the article better. Sometimes what seems comprehendable by us may not turn out that way, and requires more explaination. Sometimes we make mistakes; we will admit that we screwed up and fix it.

Every publication makes missteps; DailyTech's get magnified because our readership is so large.


RE: Deleted posts
By thReSh on 4/6/2009 11:43:00 PM , Rating: 1
until DT forum members stop being a parrot for the wacko right-wing evildoers, as well as a stooge for their owner Anandtech, then you need to set threshold to -1, to see the real story without the censorship by the Limbaugh/Hannity/Beck Faux News wackos!

also, DT is SO BUSTED! they take many new product scoops from sites like www.hkepc.com and repost the info but with no credit to the originator www.hkepc.com -- that is just wrong on so many levels - PS: I know the wacko right wingers here will attempt to bury this post, but don't be a part of the censorship of these evildoers! Don't let censorship win, set your threshold to -1!!

this post is very serious, as the inventor of overclocking, I feel I am qualified to enlighten you guys in a new way......censorship.....so enjoy my breaththrough from the 70's, but please don't fall victim to censorship on the Internet!


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