AMD offers three new Athlon X2 models as of today: the Athlon X2 7750 Black Edition at 2.7 GHz, the Athlon X2 7550 at 2.5 GHz, and the Athlon X2 7450 at 2.4 GHz. All of them share the 65 nm Phenom core (Agena) with its 512 KB L2 cache per core and 2 MB shared L3 cache, SSE 4.1, which we found introduces some nice performance advantages over the old Athlon (64) X2 in certain benchmarks, and socket AM2+. All processors are rated at a TDP of 95 W, although we expect the two entry-level models to stay below that. In addition, all new Athlon X2 7000 series processors utilize the Phenom's DDR2 dual channel memory controller, which is capable of running up to DDR2-1066 speeds. AMD says that the new processors utilize roughly 450 million transistors. This statement, however, refers to the total number of transistors for the Phenom processors with four cores.
|Model||Clock Speed||L2 Cache||L3 Cache||Core||Process||Multiplyer|
|Athlon X2 7750 BE||2.70 GHz||2x 512 KB||2 MB||Kuma||65 nm||open|
|Athlon X2 7550||2.50 GHz||2x 512 KB||2 MB||Kuma||65 nm||limited |
|Athlon X2 7450||2.40 GHz||2x 512 KB||2 MB||Kuma||65 nm||limited |
|Athlon 64 X2 6400+ BE||3.20 GHz||2x 512 KB||-||Windsor||90 nm||open|
|Athlon 64 X2 6000+||3.00 GHz||2x 512 KB||-||Windsor||90 nm||limited |
|Athlon 64 X2 5000+ BE||2.60 GHz||2x 256 KB||-||Windsor-512||90 nm||open |
|Athlon 64 X2 5000+||2.60 GHz||2x 256 KB||-||Brisbane||65 nm||limited |
|Athlon X2 BE-2400||2.20 GHz||2x 256 KB||-||Brisbane EE||65 nm||limited |
Athlon X2 7000, For Folks Upgrading
Due to the fact that socket AM2 and AM2+ are widely compatible (the main difference is the HyperTransport link speed), it is technically rather easy to deploy the new Athlon X2 7000 dual-core CPUs into existing systems, which may already be several years old. Since the power consumption is not excessive, all you need is a BIOS update and the new 7000-series Athlon X2 processors should run in your existing system.
As you will see in the benchmark section, the new processors provide more performance than the previous Athlon X2 or Athlon 64 X2 generation, without requiring more clock speed. In fact, the 2.7 GHz clock speed of the Athlon X2 7750 Black Edition is sufficient to even beat the 3.2 GHz Athlon 64 X2 6400+ in some of the tests. Clearly, the new processors do much better than the old ones.
The price point makes the new processors even more attractive for upgrade users. Spending $79 on an Athlon X2 7750 Black Edition sounds pretty reasonable. And it's affordable enough to make the new processors a great present for the holidays as well.