Much (digital) ink has run on the subject of dual-core Phenom derivatives. Rumor sites initially expected such chips to launch quad-core Phenoms last year, but we later heard that AMD had shelved the concept until the 45nm switch. Then, 65nm dual-core Phenom listings somehow made their way onto a price search engine in Europe, and unofficial benchmarks of a 2.2GHz model surfaced. We still haven't heard a peep from AMD on the subject, though.
Expreview now claims to have the latest scoop. The Chinese site says AMD may have given up on the 2.3GHz chip we heard about last month, but the chipmaker's October roadmap includes two new dual-core Phenom derivatives. Branded Athlon X2 7550 and Athlon X2 7750, the two CPUs have respective clock speeds of 2.5GHz and 2.7GHz, which they each pair with 3MB of total cache—likely 512KB of the L2 variety per core and 2MB of shared L3 cache per chip.
The roadmap reportedly pegs the arrival of these CPUs in the first quarter of next year. However, Expreview says AMD will manufacture them using 65nm process technology, and both models will have 95W thermal envelopes. This claim sounds a tad implausible, although AMD has made some strange moves in the past.