backtop


Print 122 comment(s) - last by murphyslabrat.. on Dec 22 at 1:05 PM

AMD plans to keep "Brisbane" around, releases new chips based on it

Things at AMD may have gone from bad to worse with the lackluster Phenom launch in late November.  Not only did Phenom fail to appeal to professional reviewers, but the company ended up removing one third of its CPU lineup just after the big day.

Last week AMD CEO Hector Ruiz vowed that the company would stop hemorrhaging cash and return to profitability soon.  "That is our number one goal right now," Ruiz said in a conference in Bangalore

Making a profit at AMD apparently means refocusing on its older K8 architecture.  The company will introduce eleven 65nm K8 processors over the next two quarters.  By comparison: AMD launched two quad-core K10 Phenom processors in November with three more scheduled over the next two quarters.  Two tri-core Phenom processors will follow in March 2008.

Essentially, AMD will move any remaining Athlon 64 processors from the 90nm node to the 65nm node, with a few new frequency and TDP variations.

The AMD Athlon 64 X2 5600+ will be the first to jump on the new 65nm K8 bandwagon with a 65W TDP. The previous Windsor-based chip of the same featured an 89-Watt TDP. AMD will also add 100 MHz to the core frequency of the Athlon 64 X2 5600+, now rated at 2.9 GHz. Total L2 cache will be halved in the move to the Brisbane core, and the updated Athlon 64 X2 5600+ chips will feature only 1MB of L2 cache. Availability of these processors is scheduled for Q1 2008.

AMD's higher-end Athlon 64 X2 6400+ and Athlon 64 X2 6000+ will both be discontinued.

AMD will also update its "Energy Efficient" series and will release three new chips, the AMD Athlon 4850e, Athlon 4450e, and Athlon 4050e in Q2 2008. All of the new offerings will be based on AMD's Brisbane core and will feature a 45-Watt thermal envelope. AMD's current energy efficient "BE-2xxx" series will be phased out at that time. Respectively, the new chips will run at 2.5GHz, 2.3GHz and 2.1GHz.

All new Brisbane chips will be based on the Socket AM2 interface.  These processors are compatible with AMD's AM2+ socket designated for Phenom processors.


Comments     Threshold


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

RE: Goodbye AMD
By cochy on 12/5/2007 11:03:31 AM , Rating: 3
There's only so far that you can push a CPU design.


RE: Goodbye AMD
By 16nm on 12/5/2007 11:16:48 AM , Rating: 2
Well, I think AMD are doing a pretty good job with K8 90nm, but they have a long way to go with 65nm. There is a lot of room for improvement there.

Conroe and K8, more or less, are the same design. Intel had great expertise with the 65nm process going into Conroe because of how hard they had to push it on the Netburst design. AMD have a lot more room for improvement with regards to their 65nm process. Fully expect them to introduce better, efficient steppings on 65nm. K8 is top technology and does not need to be retired. Updated - yes, retired - no. For example, SSE4 would not be a bad addition.


RE: Goodbye AMD
By Proteusza on 12/5/2007 12:04:43 PM , Rating: 3
K8 and Core 2 are similar but different. Like a Corvette compared to a Viper. Similar philosophies, different execution.

The Core 2 is superior in integer performance especially.


RE: Goodbye AMD
By MandrakeQ on 12/5/2007 1:32:56 PM , Rating: 2
Core 2 is optimized for high ILP, and it doesn't look like AMD is pursuing that route as aggressively anymore.

AMD appears to be spending their transistors on server features lately, and this means the desktop market gets neglected. I don't really blame them for this decision given the razor thin margins they have to deal with in desktop procs.

Sun has taken a similar path with their Niagara processors by focusing on thread level parallelism, and this appears to be working out well for them.


RE: Goodbye AMD
By Andrwken on 12/5/2007 6:45:35 PM , Rating: 3
The margins are razor thin by not having a competitive product. Are you saying they shifted design philosophy 2-3 years ago when k10 design started because they thought the margins would be bad on the desktop? I thought they were doing quite well in the desktop space back then, and it would seem odd to neglect it on the current design, unless, you didn't expect your vastly larger rival to come back swinging after you started takin pop shots and marketshare.

It's called don't kick the 800 lb. gorilla until your are at least an 800 lb gorilla and can deal with the consequences of waking the sleeping giant. ;)

They just don't have the resources, or capital to play with the big boy at this point, and purchasing ati gave them enough marketshare for intel to pummel them even more without having to worry about the monopoly talk for a while.


RE: Goodbye AMD
By MandrakeQ on 12/5/2007 7:41:03 PM , Rating: 3
Whenever AMD and Intel have had roughly equal performance, margins are smaller for both sides. When one pulls ahead of the other though, the leader can charge more for the performance premium, and they make more money. When you're on the losing side of the battle, then your margins become 0 or negative (AMD is in that situation right now).

K8 was AMD's first processor to successfully compete in the server space (development started back in late 90's I believe). The design philosophy of the architecture is clear when you take a look at its two most defining features, x86-64 and the IMC (neither of which are particularly useful for desktop users). AMD took advantage that Intel wanted to force Itanium down everyones throat, as well as the fact that P4 was so inefficient that it took massive amounts of power just to get it competitive. Not to mention that Intel had at that point considered AMD a bottom feeder and left it completely unchecked.

K10 is an extension to K8 (still with a focus on servers) and it is going to do well in the 8+ core server space. Everywhere else it will lag behind, since there's no way a 4MB cache shared across 4 cores will perform as well as the 12MB cache the Penryn Xeons have (Unless of course you're bottleneck is bus traffic and memory latency, which is the case for the market previously mentioned).


RE: Goodbye AMD
By myocardia on 12/6/2007 1:38:39 PM , Rating: 2
quote:
K10 is an extension to K8 (still with a focus on servers) and it is going to do well in the 8+ core server space. Everywhere else it will lag behind, since there's no way a 4MB cache shared across 4 cores will perform as well as the 12MB cache the Penryn Xeons have (Unless of course you're bottleneck is bus traffic and memory latency, which is the case for the market previously mentioned).


Umm, two things to be noted here. First is that all Barcelona's (the K10 server chip) have been recalled. The second is that 100% of Intel's current quad-core CPU's have 2x4 MB of L2 cache, not 1x4 MB.


RE: Goodbye AMD
By MandrakeQ on 12/6/2007 3:34:42 PM , Rating: 2
I thought Penryn based Xeon 5400's had 12 MB L2 cache? Are these not available yet? As for the recall, its a bummer for AMD, but if they can get the problem fixed soon (hopefully by early next quarter), they should be able to sell a healthy number of them at least until Nehalem comes out.


RE: Goodbye AMD
By joemoedee on 12/6/2007 8:09:40 AM , Rating: 2
quote:
There's only so far that you can push a CPU design.


True, but then you have to consider that the current Intel CPUs that are wiping the floor with AMD performance wise trace their routes back to the P3 which was launched back in 1999.

There's a lot to be said for refinement and enhancement on CPUs. One great thing AMD has going for their K8 CPUS is Hypertransport, and I think they could still ring some good performance gains from their existing design.


"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

Related Articles













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