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Say hello to the Phenom FX-90 and FX-80 series

AMD’s latest roadmap reveals model numbers for upcoming Phenom FX processors. Under the new naming scheme, the AMD Phenom FX lineup consists of the Phenom FX-80 and FX-90 series. AMD designates the Phenom FX-80 series for single processor systems while the FX-90 takes on 4x4 dual processor systems.

AMD plans to launch two Phenom FX-90 series processors in Q1 2008. The two Phenom FX processors carry the FX-91 and FX-90 names. The AMD Phenom FX-91 will have a clock-speed between 2.4-to-2.6 GHz and will sit on a 3.6 GHz HyperTransport 3.0 bus. The lower Phenom FX-90 will have a clock-speed between 2.2-to-2.4 GHz with a slower HT3 bus. AMD is unsure of the Phenom FX-90’s HT3 bus, but roadmaps indicate HT3 speeds excess of 3.2 GHz. The two Phenom FX-90 series will drop into Socket 1207+ motherboards.

AMD plans one Phenom FX processor for Socket AM2+ platforms. The AMD Phenom FX-80 is essentially the FX-90 for single-processor systems. The Phenom FX-80 will clock in between 2.2-to-2.4 GHz and have a HT3 bus speed in excess of 3.2 GHz. All Phenom FX processors share similar feature sets, with 512KB of L2 cache per core and a shared 2MB L3 cache. The TDP of Phenom FX processors are still to be determined.

Expect AMD to pull the wraps off the Phenom FX-90 series in Q1 2008 with its upcoming FASN8 socket 1207+ platform. AMD expects to launch the Phenom FX-80 earlier, in the November-to-December timeframe.

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By kenji4life on 7/2/2007 7:06:24 PM , Rating: 2
I wonder how much benefit we'll actually see from more HT bandwidth.. In the real world.

By jak3676 on 7/2/2007 7:12:11 PM , Rating: 2
well for dual sockets and quad core it may start to be important, but I still think it will be a minimal difference if noticable at all.

By smitty3268 on 7/2/2007 8:50:22 PM , Rating: 2
For someone using all 8 cores at full speed, it may make a bit of difference. In the real world, though, where most people have a hard time even using 2 there won't be any difference at all, especially with the larger caches K10 has.

By SurJector on 7/3/2007 4:04:53 AM , Rating: 2
I don't know about Windows but Linux with NUMA would probably negate any HT speed increase unless (and that's a big unless) a single thread eats more memory than what's available on a single processor.

By Amiga500 on 7/3/2007 5:02:31 AM , Rating: 2
For desktop work, yeah, the benefit is probably marginal.

But for workstation stuff - say, CFD - where enourmous amounts of data is shunted around (from the memory to CPU and from CPU to CPU), the benefits are extemely useful.

By defter on 7/3/2007 8:30:47 AM , Rating: 2
In case you haven't noticed, AMD CPUs have integrated memory controller these days. Thus, in a single CPU configurations HT isn't used for CPU <-> memory traffic...

By DallasTexas on 7/3/2007 10:49:29 AM , Rating: 1
What's this? The HT hype is starting to deflate after so many years? Is the integrated memory controller next? LOL

By smitty3268 on 7/3/2007 6:59:33 PM , Rating: 3
No, it's still massively better than the old FSB which is why Intel is moving to a similar architecture. The thing is, it's already so good that just increasing the speed a little bit isn't going to improve things all that much. I think the upcoming power saving features will be more important.

"And boy have we patented it!" -- Steve Jobs, Macworld 2007
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