Athlon 64 X2: AMD's Dual-Core
In 2005, AMD changed its architecture to offer a dual-core version of the K8, and the Athlon 64 X2 was born. Though made up of two K8 cores, the architecture—using a HyperTransport interface—enabled good performance, unlike the solution used by Intel, with the FSB handling communication between the CPUs in its first dual-core processors. The Athlon 64 X2 exists in different sockets and is still on the market (as of August 2008) as an entry-level solution.
|Maximum memory||1 TB||1 TB|
|L1 cache||64 KB + 64 KB x 2||64 KB + 64 KB x 2|
|L2 cache||1,024 KB x 2 (CPU frequency)||512 KB x 2 (CPU frequency)|
|Clock frequency||2,200-2,400 MHz||1,900-3,100 MHz|
|Memory controller||DDR-400, 2 channels||DDR2-800, 2 channels|
|FSB||1,000 MHz (HTT)||1,000 MHz (HTT)|
|SIMD||MMX, Enhanced 3DNow!, SSE, SSE2, SSE3||MMX, Enhanced 3DNow!, SSE, SSE2, SSE3|
|Fabrication process||90 nm||65 nm|
|Number of transistors||233.2 million||153 million|
|Power consumption||89/110 W (TDP)||65/89 W (TDP)|
|Voltage||1.35–1.4 V||1.25–1.35 V|
|Die surface area||199 mm²||126 mm²|
|Connector||Socket 939||Socket AM2|
As for the Athlon 64, we’re only showing two versions of the K8, though other versions exist. Obviously there are server versions (Opteron), high-end versions (Athlon 64 FX) and mobile versions (Turion 64 X2), and also entry-level versions in the form of the Sempron X2. One final anecdote: AMD got away with using the same code name for a processor as Intel had used: the Santa Rosa (a dual-core Opteron manufactured on a 90 nm process).
Where the intel article seemed to overshadow intel's little victories, this article seems to gloss over AMD innovation (though i'll admit that i didn't recall the bit about the Intel chip, either the pentium or pentium pro, that gave incorrect values for mathmatical equations)
Both articles really need alot more detail added. As i've actually ranted about the history i'm reffering to in the comments section of the intel article as well as many other's i won't re-hash it.
This is like viasat history - only more specific and technical
AMD 486 @120 Mhz was making my friends that bought an early Pentium red with envy.
Someone gave me a AMD K5 system.
Thanks for the article.
I have quite a few chips from both makers, including the AMD 40MHz 386, and an Intel 386 & 387 33MHz cpu's, which are quite scarce...