Samsung's GDDR3 is used by leading graphics controller manufacturers to boost graphics card performance. As a hyper-synchronous double-data-rate DRAM, this advanced memory operates at clock speeds up to 800MHz. GDDR3 delivers data at speeds up to 1.6Gbps, and peak chip bandwidth is 6.4GBps. Added features are a small form factor and low power operating requirement. Advanced Features Samsung has incorporated key enhancements into GDDR3: â€¢ 1.8V I/O â€¢ Uni-Dir ectional & Single-Ended Data Strobe (RDQS, WDQS) â€¢ On-Die Termination â€¢ Of f-Chip Driver Calibration â€¢ Pseudo Open-Drain These features enable improved signal integrity, boost performance and lower power.