Specifications of three of Intel's upcoming "Centerton" Atom processors for the server market have surfaced. These chips will have a sub-10W TDP, they target microservers and will start shipping in Q4 2012.Atom "Centerton" chips will integrate two "Saltwell" CPU cores, single-channel memory controller, PCI Express 2.0 interface, and several I/O components. Each CPU core will have its own dedicated 32KB instruction and 24 KB data L1 caches, and 512 KB L2 cache.
The processors will support Hyper-Threading, which will allow them to run up to 4 threads simultaneously. Additionally, the chips will have VT-x virtualization enabled. Atoms' x86 instruction set will be extended with Intel 64 technology, and SIMD instructions up to SSE3 and SSSE3. All in all, there will be three different Atom SKUs. S1220 and S1240 will operate at 1.6 GHz, and they will differ by maximum power consumption. The S1240 is a 6.1 Watt processor, whereas less expensive S1220 will have 8.1W TDP. The S1260 will be clocked at 2 GHz, and it is going to have 8.5 Watt TDP.
Atom S1220: dual-core, 4-threaded, 1.6GHz, 1MB L2 cache, 8.1W TDP
Atom S1240: dual-core, 4-threaded, 1.6GHz, 1MB L2 cache, 6.1W TDP
Atom S1260: dual-core, 4-threaded, 2GHz, 1MB L2 cache, 8.5W TDP
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