Graphics Double Data Rate (GDDR) IP Core
Graphics Double Data Rate GDDR IP Core is a next-generation high-bandwidth memory interface that doubles data rate compared to GDDR5. GDDR IP Core allows up to 512 GB/s data bandwidth and 2666 MHz clock frequency. Graphics Double Data Rate GDDR IP Core supports 8x GDDR5 and 8x GDDR5X memory modules.
It is a type of interface specifically designed for graphics processing units or GPUs that plug in PCI ports or slots. GDDR IP stands for Graphics Double Data Rate and is used to communicate with graphics processors. As a 16MB memory chip, it was initially referred to as DDR SGRAM, or Double Data Rate Synchronous Graphics Random Access Memory, by Samsung Electronics when it was introduced in 1998.
In addition to GDDR, there are GDDR2, GDDR3, GDDR4, GDDR5, and GDDR6, which each feature differs from the others. GDDR, GDDR2, GDDR3, GDDR4, GDDR5, and GDDR6, which are the most recent versions. A large portion of these RAMs are used in consoles as well as high-performance graphics cards, primarily for gaming and associated computation.
With a decrease in heat output and a reduction in power consumption, GDDR3 offers similar performance to DDR, except that its performance has been improved. GDDR4 introduced data bus inversion and multipreamble to reduce data transmission delays. On the basis of DDR3, GDDR5 utilized 8 bit wide prefetch buffers and double data lines.
As a successor to GDDR5, GDDR6 offers better performance. GDDR6 has lower power consumption rates compared to GDDR5. Why? It is due to a wider pin bandwidth of 16 bits per second.
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What Separates DDR and GDDR?
Both DDR and GDDR have only one thing in common: they are both double data rate. This may cause you to wonder: why is it necessary to evolve from DDR SGRAM to GDDR?
In contrast to DDR, which primarily caters to CPUs or central processing units, GDDR is specifically designed for GPU workloads. The memory bus on GDDR is wider, which means it has much higher bandwidth than DDR. In general, DDR has lower latency due to the fact that it has been designed for programs such as internet browsers and computer applications that transmit data packets in small bits. It receives 9 bits per clock cycle. While GDDR receives 16 bits in a cycle, it can send and receive large amounts of data at once, making it ideal for GPU workloads.
In addition to the ability to request and receive data within one clock cycle, GDDR is also faster than DDR. It is understandable that GDDRs are more expensive than DDR memory because of their higher performance rate, but they are definitely worth the price if you want high-quality graphics. In addition, GDDR is optimized to produce better results by reducing heat output and consuming less power.