As its quad-core battle with Intel on the desktop grows near, AMD has made a surprise addition to its lineup of dual-core processors. Dubbed Athlon 64 X2 5000+ Black Edition, the new CPU isn't a new speed grade—indeed, it's clocked at the same 2.6GHz clock speed as the regular Athlon 64 X2 5000+, and it features the same 1MB of total L2 cache and 65W power envelope. However, the new chip has an unlocked multiplier, which should allow users to overclock it as far as it'll go without touching their motherboard's HyperTransport clock.
AMD says the new chip will be "available soon" from online retailers including Newegg, ZipZoomFly, Mwave, Amazon, TigerDirect, and NCIX. According to the company's price list, the Athlon 64 X2 5000+ Black Edition will be priced at $136—an $11 premium over the regular 5000+.