backtop


Print 89 comment(s) - last by Schrag4.. on Jun 20 at 12:16 PM


  (Source: Amazon)

  (Source: Amazon)
AMD's newest is an alternative to NVIDIA's last generation high-end

Hot on the heels of NVIDIA's GTX 200 family launch, AMD will introduce its 55nm RV770-based Radeon 4850 next week. 

The Radeon 4850 features a 625 MHz core clock and GDDR3 clock in excess of 2000MHz. Corporate documentation explains that the 480 stream processors on the RV770 processor offer considerable enhancements over the 320 stream processors found in the RV670 core, though AMD memos reveal little about how this is accomplished.

The RV770 includes all the bells and whistles of the RV670 launched in November 2007: Shader Model 4.0, OpenGL 2.0, and DirectX 10.1.  The only major extension addition appears to be the addition of "Game Physics processing" -- indicating a potential platform for AMD's recent partnership with Havok.

The new Radeon lacks GDDR5 memory, promised by an AMD announcement just weeks ago. Although the RV770 does support GDDR5 memory, this initial launch consists exclusively of GDDR3 components.  AMD documentation hints at the launch of a Radeon 4870 later this summer, but it offered no comment on when it will eventually ship a GDDR5 product.

If Radeon 4850 sounds familiar, that's because it is. The RV770-based FireStream 9250, just announced a few days ago, broke the 1 teraflops barrier using the same graphics core.  However, this paper-launched workstation card will retail for more than $900 when it finally hits store shelves.  The mainstream Radeon 4850 offerings will ship and launch on the same day next week.

AMD partners claim the new card will not compete against the $600 GTX 200 just announced yesterday. Instead, AMD pits the Radeon 4850 against the recently re-priced NVIDIA GeForce 9800 GTX.  Distributors claim the 4850 will see prices as low as $199 at launch -- well under the $299 MSRP for GeForce 9800 GTX.  More expensive versions of RV770 will feature HDMI, audio pass-through and possibly the fabled Qimonda GDDR5 memory.

Specifications from Diamond Multimedia marketing material claim the new Radeon will require a 450 Watt power supply for single card support; or 550 Watt power for CrossFire mode.

Update 06/09/2008: As of this morning, AMD has lifted the embargo on its 4850 graphics cards. AMD's newest documentation claims the RV770 processor contains 800 shaders, but the card is not expected to show up on store shelves before the planned June 25 launch date.



Comments     Threshold


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

Alarming?
By Creig on 6/17/2008 1:27:14 PM , Rating: 5
quote:
The most alarming thing about the new Radeon is the lack of GDDR5 memory, promised by an AMD announcement just weeks ago. Although the RV770 does support GDDR5 memory, this initial launch consists exclusively of GDDR3 components. AMD documentation hints at the launch of a Radeon 4870 later this Summer, but t offered no comment on when it will eventually ship a GDDR5 product.


Why is this alarming? The RV770 GPU supports GDDR3/4/5 and it's up to the OEMs to decide which memory (and how much) to place on their cards. The 4850 isn't positioned as a top end card so the manufacturer's decided (rightly) to put GDDR3 on them. Why would they want to pair top shelf memory with a mid-range card? I would imagine you'll find GDDR5 on the upcoming 4870 and 4870 X2.




RE: Alarming?
By KristopherKubicki (blog) on 6/17/2008 1:30:06 PM , Rating: 1
Because the Qimonda / AMD announcement seemed to imply we'd see GDDR5 sooner than later. It's going to be later.


RE: Alarming?
By ChronoReverse on 6/17/2008 1:34:07 PM , Rating: 5
It was well-known that the 4850 was a GDDR3 part while the 4870 would have GDDR5.

It could be said that it's alarming that the 4870 is late but the same can't be said for the 4850 which is what this article is about according to the title.


RE: Alarming?
By FITCamaro on 6/17/2008 2:09:22 PM , Rating: 3
Yeah I was about to say. It was my understanding that the 4850 was to be primarily GDDR3 and the 4870 would be the GDDR5 part.

If this thing starts as low as $199, thats a damn good deal.


RE: Alarming?
By defter on 6/17/2008 2:21:22 PM , Rating: 2
quote:
It could be said that it's alarming that the 4870 is late but the same can't be said for the 4850 which is what this article is about according to the title.


You should read the content. I don't understand why the author was modded down. He said quite clearly that lack of GDDR5 part (read: 4870) is alarming, because it was supposed to launch next week:

quote:
The most alarming thing about the new Radeon is the lack of GDDR5 memory, promised by an AMD announcement just weeks ago. Although the RV770 does support GDDR5 memory, this initial launch consists exclusively of GDDR3 components. AMD documentation hints at the launch of a Radeon 4870 later this Summer, but t offered no comment on when it will eventually ship a GDDR5 product.


RE: Alarming?
By Goty on 6/18/2008 1:39:17 PM , Rating: 3
The 4870 is due to launch a little later, I think. The 4850 was the only one of the two set to launch next week.

I could be wrong, though.


"When an individual makes a copy of a song for himself, I suppose we can say he stole a song." -- Sony BMG attorney Jennifer Pariser














botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki