Samsung GDDR5 8Gb – 256M x 32

High-Speed Graphics DRAM for GPUs and HPC Systems

Samsung GDDR5 8Gb (256M x 32) is a high-performance graphics DRAM designed for discrete GPUs, gaming graphics cards, consoles, and high performance computing platforms. Built to support high data throughput and improved energy efficiency, GDDR5 remains a widely adopted solution in legacy and mid-generation graphics architectures.

With support for data rates up to 9.0 Gbps, this memory enables efficient frame rendering, real-time 3D workloads, and compute-intensive applications.

Technical Specifications

• Memory Type: GDDR5
• Density: 8Gb
• Organization: 256M x 32
• Data Rate: Up to 9.0 Gbps (speed grade dependent)
• Package: 170-ball FBGA
• Refresh: 16K / 32 ms
• Power Efficiency: ~25% lower than GDDR3
• Product Status: EOL

Performance Characteristics

Operating at speeds up to 9.0 Gbps, Samsung GDDR5 8Gb delivers significantly higher bandwidth compared to GDDR3, enabling nearly three times faster graphics data processing. The 32-bit I/O configuration supports high-throughput GPU memory architectures while maintaining stable signal integrity.

This makes it suitable for graphics memory for gaming GPUs, workstation accelerators, and legacy HPC deployments requiring deterministic performance.

Power Efficiency

Compared to GDDR3 operating at 1.5 V, GDDR5 reduces power consumption by approximately 25% while delivering substantially higher bandwidth. Improved power efficiency helps reduce overall thermal load in graphics cards and embedded compute systems.

Application Areas

• Discrete PC graphics cards
• Gaming consoles
• Workstation GPUs
• High performance computing systems
• Legacy accelerator platforms

Part Number List

• K4G80325FC-HC22 – 9.0 Gbps – 170 FBGA – EOL
• K4G80325FC-HC25 – 8.0 Gbps – 170 FBGA – EOL
• K4G80325FB-HC22 – 9.0 Gbps – 170 FBGA – EOL
• K4G80325FB-HC25 – 8.0 Gbps – 170 FBGA – EOL
• K4G80325FB-HC28 – 7.0 Gbps – 170 FBGA – EOL

FAQ

Q1: Is Samsung GDDR5 8Gb a memory module?
No. It is a discrete graphics DRAM chip intended to be mounted on GPU PCBs. It is not a DIMM or pluggable memory module.

Q2: What does 256M x 32 mean?
256M x 32 describes the internal organization of the memory array. It indicates 256 million addresses with a 32-bit data width.

Q3: How does GDDR5 compare to GDDR3?
GDDR5 offers significantly higher data rates (up to 9.0 Gbps in this series) and approximately 25% improved power efficiency compared to GDDR3.