Product Features: . Pentium 4 · Processor Core Speeds Up to 1.8 GHz · Supports Intel® NetBurst™ Micro-Architecture · 512 KB L2 Advanced Transfer Cache · 400-MHz System Bus · Supports Hyper-Pipelined Technology · Supported by the Intel® 850 and Intel® 845 chipsets · Streaming SIMD Extensions 2 (SSE2) Instructions · Intel® MMX™ media enhancement technology · Integrated Caches include 12K micro-op trace cache and 8KB L1 data cache in addition to L2 cacheMemory · Based upon Intel's leading 0.13 micron and 0.18 micron manufacturing process technologies · Compatible with: Intel® D850GB, 850MD, 850MV, D845WNL, D845WN, D845HVL, and D845HV motherboards