Product Description About this item 64-bit Processor with Intel Extended Memory 64 Technology (Intel EM64T)1 Binary compatible with applications running on previous members of the Intel microprocessor line Intel NetBurst microarchitecture Hyper Pipelined Technology Enhanced floating point and multimedia unit for enhanced video, audio, encryption, and 3D performance Product info... https://www.electronics70off.co.uk/products/Processor-%252d-1-x-Intel-Xeon-3.4-GHz-%28800-MHz%29-%252d-Socket-604-%252d-L2-2-MB-%252d-Box.html