The following is from Raul's blog showing comments posted anonymously. Some interesting pointers that I thought I would highlight and see wat our folks here have got to say about it.... :p:
Interesting link
Quote:
But what is the point in this ? Very few games today have have scripts that take advantage of two cores, and even fewer have full SMP enviroments enabled. As shown on extremsystems.org where several users have gotten hold of the Quad core Kentsfield, the biggest and really only major improvement was in Cinebench.
Quote:
Henri Richard, EVP and chief sales and marketing officer, AMD:
"We're now introducing AM2, and of course AM2 will be quad-core compatible.
[...]
And the fact that the AM2 socket allows us to have a seamless transition to quadcore tells me that I can buy a 4×4 platform, in the later part of this year, and then take it to eight cores sometime in 2007. And that's phenomenal.
[...]
Our plan is to have both dual-core and quad-core K8L-based processors within the same timeframe. The K8L development, from the ground up, is a quad-core development."
-- DigiTimes.com, Taipei
Quote:
Crysis will feature out-of-the-box 32-bit, 64-bit, DirectX 9, DirectX 10, and multithreading support.
- Crysis will also take advantage of 64-bit CPUs :
According to [Cevat Yerli, Crytek president and CEO], the 64-bit version "will bring a performance difference of up to 10 to 15 percent on each thread" compared to the 32-bit version.
http://uk.gamespot.com/pc/action/cry...ml?sid=6154899
Quote:
After all that marketing paper launches... Do you know why 4x4 is delayed so long?
AMD lied and hyped away on their 4x4. Problem is that AMD desktop processors have SINGLE NON-ccHT link. 4x4 requires both processors to have at least 2 ccHT links.
Ask AMD whether current X2 and FX processors can be used on 4x4. How come no one ever questioned that?
By the time its launched, you'd probably need to buy new processors. Possibly modified Opteron 2xx series. Heck, their demo unit had RDIMMs and "engineering samples"?!
4x4 is a kludge too.
The board will be expensive, close to the prices of those 2S server/workstation boards. Imagine the board size! New bigger casing needed! And the extra power needed and consumed! You'll need a two pairs of RAMs!
Don't forget about the 86% scaling going to 4 cores on ccHT bus (based on 2S or 4 core Opteron scaling). That means each core will perform slightly slower, or roughly 12% slower!
Nothing's perfect. Next time before you swallow easily the glut of AMD's PR hypes, examine closely.
The future for ordinary consumers is not more sockets, but more cores in a single socket. Being "very close" together, speeds and scaling are much better. Larger shared caches are the way to go as it reduces bus contention between cores and less memory access.
Already engineering samples of Kentsfield already shown that. Despite being a "multi-chip package" on a bottlenecked FSB, its scaling is very impressive ~ about 90% or higher for 4 cores!
And Intel is going for 32 cores in a single processor in the future. This is an alternative route.
Quote:
Don't understand the lie. AMD claimed K8L is compatable with AM2. The $1000 kit includes cpu's, no one said a regular cpu could be used as a multi in 4x4. Yes they answered, and it is one current AM2 can be used alone, but not 2.
Quote:
I believe when one of the AMD execs (Hector or Henri, I believe) was asked if X2s would be supported, he said that AMD wasn't sure what all they were going to support in 4X4. I can't find the article now, of course. But it was basically asked and he danced around it not saying one way or the other. I guess if AMD feels it is necessary to support it they will, if they feel they don't need to to stay competitive, they won't.
Basically, I believe current X2s could be supported. But AMD has to think about their low end servers. If you could build a 4X4 with a couple of 3800 X2s and it would perform as well/faster than a low end server, why would anyone buy the low end server for a higher price? AMD would be kind to support low end X2s, but does it make financial sense for them to do so?
Also, I'm pretty sure the single non-ccHT link statement isn't entirely accurate. Saying that the X2s only have one link is correct - sort of. There are really three links there, but AMD only "reports" one of them. As a moderator on the AMD forums says here, AMD only reports one to avoid confusion.
The technology is there to support X2 on a 4X4 platform, it's just a matter of whether it makes financial sense for AMD. I guess if they end up supporting X2, we all should realize AMD isn't just after money, but is also looking to take care of its customers.
Quote:
4x4 came out about the same time as AMD started talking about dynamicly reconfigurable/splittable HT links for Opterons. I suspect it's the same deal. I bet that what 4x4 _really_ stands for is the 16 bit single HTT link on a desktop processor, which will be able to dynamicly split in 4 bit increments between talking to the system and interprocessor tasks. 4 lanes of 4 bits each = 4x4.