Processor Specifications - Second Generation

Although the memory benchmarks presented in this paper are for the first generation of Nehalem processor, we feel that this is an excellent place to put information on the other generations. Here's what we have on the second generation of Nehalem processors

There are four different classes of second generation Nehalem processor. These classes will be individually discussed below.

The first class is the Core-i5 (Lynnfield). These processors support two memory channels at up to 666MHz, with up to two unbuffered single-rank or dual-rank memory modules per channel. They do not support ECC, and are targeted at mainstream desktop systems. The following processors are in this class:

The second class is the Core-i7 (Lynnfield). These processors support two memory channels at up to 666MHz, with up to two unbuffered single-rank or dual-rank memory modules per channel. They do not support ECC, and are targeted at mainstream desktop systems. The following processors are in this class:

The third class is the Uni-Processor Xeon (Lynnfield). These processors support two memory channels at up to 666MHz, with up to two unbuffered single-rank or dual-rank memory modules per channel or up to three registered single-rank, dual-rank or quad-rank memory modules per channel. Unlike the 5500 series CPUs (Gainstown), these CPUs only support x8 and x16 memory configurations (8 or 16 bits per memory chip - the 5500 series CPUs support 4, 8 or 16 bits per memory chip). They support ECC (required), and are targeted at entry-level workstations and servers. The following processors are in this class:

The fourth class is the mobile processor (Clarksfield - both the Standard and the Extreme). These processors support two memory channels at up to 666MHz, with one unbuffered single-rank or dual-rank memory module per channel. They do not support ECC, and are targeted at high-end laptop systems. The following processors are in this class: