AMD is releasing its dual-core desktop processor based on the 65nm K10 architecture, codenamed Kuma. One of the first SKUs based on the core, the Athlon X2 7750, has been evaluated by Donanim Haber. The Athlon X2 7750 comes with a clock-speed of 2.70 GHz, and a HyperTransport 3.0 system interface. It has 512 KB of L2 cache per core, and a shared L3 cache of 2 MB. Donanim Haber put this chip to test on a Foxconn A7DA-S (AMD 790 GX + SB750) motherboard, with 2 GB of 800 MHz DDR2 memory. It was compared to the Intel Core 2 Duo E8200, Core 2 Duo E8400, Core 2 Duo E6420, AMD Phenom X3 8750 and Athlon X2 5200+ (Brisbane), all running at stock speeds.
The chips were put through 3DMark06 (CPU Score), Cinebench 10 (64-bit), wPrime 1.55 (32M), and Fritz Chess. Additionally, the Cinebench 10 test was run with the chip overclocked to 3.30 GHz. The evaluation shows the Athlon X2 7750 "Kuma" to be seated somewhere between the Athlon X2 5200+ and Core 2 Duo E8200 on a broader scale. The addition of the L3 cache, among other K10-specific optimisations, seems to give the Kuma a definite edge over the Athlon X2 5200+ "Brisbane", which runs at the same clock speed, though it doesn't quite match up to the Core 2 Duo E8200, although it manages to beat it at wPrime.
The reviewers ran the same tests with the chip clocked at 3.10 GHz, along with a Cinebench run at 3.30 GHz. The overclock they managed after an AMD Overdrive session was 3.40 GHz.