AMD Announces Quad Core Tape-Out

Gr8Apes writes "The DailyTech has a snippet wherein AMD announced that quad core Opterons are taped out and will be socket compatible with the current DDR2 Opterons. In fact, all AM3 chips will be socket compatible with AM2 motherboards. For a little historical perspective, AMD's dual-core Opteron was taped out in June 2004, and then officially introduced in late April, 2005.' AMD also claims that the new quad processors will be demo'd this year. Perhaps Core 2 will have a very short reign at the top?" From the article: "The company's press release claims 'AMD plans to deliver to customers in mid-2007 native Quad-Core AMD Opteron processors that incorporate four processor cores on a single die of silicon.'"

Comments

Software Licensing

[graphicartist82]

I'm interested to see if software companies who license their software by CPU will continue to define a "CPU" as a physical socket, or a core. Right now Microsoft and VMWare (and lots of others) define a CPU as a physical socket, not a core. So a dual core processor only counts as one CPU for licensing purposes.

It will suck if they start realizing how much more money they could be making by defining a core as a CPU for licensing...

Re:Software Licensing

[drix]

Once upon a time, the only people who had SMP machines had spent a huge amount of money on them. Licensing per CPU was simply a smart way to discriminate your customer base and figure out who had a high willingness to pay. Maximize producer surplus and all that. SMP became more and more commoplace in the 90s and now, with the advent of dual core, every grandma on AOL will be running on two or more CPUs in a matter of years. Since performance gains seem to be oriented towards more parallelism and not more MHz nowadays, this effectively means that software that runs on only one CPU has reached a performance plateau compared with everything else. My guess is the software industry will wake up to this fact and stop licensing by CPU, unless they want to field all sorts of questions about why theirs runs twice as slow as the next guy's.

Four Cores and Seven Years Ago

[Short Circuit]

Isn't AMD depending on additional cores to beat Intel's performance similar to how Intel's Prescott depended on additional MHz to beat AMD's performance?

Sounds like the shoe's on the other foot. I hope AMD brings back the kind of engineering innovations that brought it support among those in the know back in 1999 and 2000.. (Like focusing on a superscalar architecture with the K7.)

Four cores is a fine concept, but they mustn't forget to increase the capabilities of the individual cores.

Quad core "efficient"?

[martinbogo]

It took AMD a very long time to create a low-wattage version of the dual core 280. With four cores burning away on the new chip, I wonder how efficient putting a quad-core chip on a server board will be. Right now, most servers are running more than 80W per chip, making for a massive thermal dissipation problem. There's a lot of heat to shunt away from the chip, after all.

I'd rather have an ultra-efficient dual core chip, sayyyy .. 25W .. over having a quad core monster at over 140W!

Buy for tomorrow

[spyrochaete]

In fact, all AM3 chips will be socket compatible with AM2 motherboards

This is precisely why I recently purchased an Athlon 64 X2 instead of a Core Duo despite glowing reviews of the latter. The Duo is on Intel's ancient 478/775 sockets whereas X2 is on AMD's new AM2 socket. How many more processors can Intel jimmy into those tight little PGAs? AM2 will have legs for years to come while early adopters of Duo will be buying new motherboards with their next CPU upgrades.

Re:How Many Cores is too Many?

[NerveGas]

Photoshop can max out the four cores in my dual dual-core Opteron setup. Admittedly, I don't do that often, but that's still one app which *can*, and that's just a desktop app. Most server-oriented applications, however, are designed to take advantage of multiple CPUs.

steve