GDDR4 (Graphics Double Data Rate 4)
In addition to Rambus’ XDR DRAM, GDDR4 (Graphics Double Data Rate, version 4) is a rival medium to GDDR4 (Graphics Double Data Rate, version 4) designed to replace DDR2 based GDDR3, but was eventually replaced by GDDR5. The new technology is based on DDR3 SDRAM technology and is intended to replace DDR2.
GDDR4 SDRAM rated at 2.8 Gbit/s was also announced by Samsung on October 26, 2005, running at 2.5 Gbit/s and containing 256 Mbits of GDDR4 GDDR4 memory.
In February 2006, Samsung announced that it would develop a 32-bit, 512-Mbit GDDR4 SDRAM module that would transfer 3.2 gigabytes/second per pin, or 12.8 gigabytes/second. Samsung announced on July 5, 2006, the introduction of 32-bit 512-Mbit GDDR4 SDRAM with 2.4 gigabyte/second per pin, or 9.6 gigabyte/second for the module. Despite being designed to match XDR DRAM’s performance on high-pin-count memory, it will not be able to compete with XDR performance on low-pin-count memory.
GDDR4 SDRAM with 32 bits and 512 bits, rated at 2.8 GB/s per pin, or 11.2 GB/s per module, will be available for AMD cards starting February 9, 2007. Samsung announced 32-bit 512-Mbit GDDR4 SDRAM on February 23, 2007, which will be available for commercial graphics cards by the end of the year 2007. The memory is rated at 4.0 Gbit/s per pin or 16 GB/s.
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GDDR4 SDRAM introduced DBI (Data Bus Inversion) and Multi-Preamble to reduce data transmission delay. There are now eight memory banks in GDDR4, which means the GDDR4 core runs at half the speed of a GDDR3 core with the same raw bandwidth. Prefetch has been increased from 4 to 8 bits, and the maximum number of memory banks is now eight. Core voltage has been reduced to 1.5 volts to achieve the same bandwidth as GDDR3 SDRAM.
With Data Bus Inversion, the address/command bus and each data byte have an additional active-low DBI# pin. The DBI# signal is transmitted low when there are at least four 0 bits in the data byte, resulting in a limit of four 0 bits across all nine pins, which reduces ground bounce and power consumption.
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8 bit I/O buffer
GDDR4 also has an 8 bit I/O buffer, which allows for greater sustained bandwidth during burst transmissions, as the chip’s I/O buffer is expanded to 8 bits every two cycles. In comparison to GDDR3, the CAS latency (CL) is significantly higher, mainly because the number of address/command pins has been reduced twice, as well as the number of DRAM cells have been half-clocked. It was necessary to reduce the number of addressing pins on the GDDR3 core by half, and instead use them for power and ground, which increases latency as well. Additionally, GDDR4 provides more power efficiency than its predecessors: GDDR3 chips that operate at 2.0 Gbit/s consume 45% more power than GDDR4 chips that run at 2.4 Gbit/s.
The GDDR4 SDRAM is sometimes referred to as a “GDDR4 SGRAM,” which is shorthand for ‘Graphics Double Data Rate version 4 Synchronous Graphics RAM’. However, since this memory does not support block writing, it does not qualify as a SGRAM.
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An example of GDDR4 video cards with NFS performance from 2010. As a result of rapid technological advancement in video segments and the imminent release of the next generation of video memory modules – GDDR5 – in 2006, the company Qimonda, which produces video, announced it would not deal with the issue of GDDR4 modules. Nvidia and ATI are the two major players in the graphics card market that are not willing to use GDDR4 memory in their products.
As of today, only a small range of ATI graphics cards is offered by companies, one of which is the ATI Radeon X1950 XTX, a model that was at the time the top of its class, and the great mass distribution of the GDDR4 is necessary for today’s technological world.
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Advantages and disadvantages
The advantages include:
Efficient use of energy;
The technology used to manufacture the previous generation of products;
Some disadvantages include:
These types of graphics cards have a low maintenance requirement;
Without long-term technical support from the manufacturer and developer, video cards with this type of memory have a large amount of non-optimized content;
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GDDR4 GPUs (Graphics Double Data Rate 4)
A few GDDR4 you can find in Amazon are as shown below;
MAXSUN GEFORCE GT 1030 4GB GDDR4
The MAXSUN GeForce GT 1030 4GB GDDR4 is a great value-oriented card that delivers excellent performance. It features a powerful GPU and 4GB of GDDR4 memory, making it perfect for use in a variety of gaming applications. The card is equipped with a low profile design and is compatible with a variety of systems.
MSI Gaming GeForce GTX 1660 Super 192-bit
MSI Gaming GeForce GTX 1660 Super 192-bit
The MSI Gaming GeForce GTX 1660 Super 192-bit is a great choice for gamers who want a high-performance graphics card that can handle the latest games. With a powerful core and impressive memory bandwidth, this card is perfect for gaming on newer systems and offers great performance at a competitive price.
The NVIDIA Pascal architecture is well-suited for gaming, and the GeForce GTX 1660 Super 192-bit is no exception. It features a powerful core that can handle the latest games with ease, and impressive memory bandwidth that lets you game at high resolutions and frame rates.
The MSI Gaming GeForce GTX 1660 Super 192-bit is a great choice for gamers who want a high-performance graphics card that can handle the latest games.
ZER-LON GeForce GT 1030 Graphics Card
The GeForce GT 1030 is a budget-focused graphics card from NVIDIA. It’s based on the Pascal architecture and supports DirectX 12.0. It has a core clock speed of 1,107MHz and a Boost Clock speed of 1,216MHz. It comes with 3GB of GDDR5 memory. The card supports up to two displays at once, and has a minimum system requirement of Windows 7 or 8.1. The card is available in both a single-slot and a dual-slot configuration.
MSI GT 1030 AERO ITX 2GD4 OC GeForce GT 1030
Lastly we have the Geforce. The GeForce GT 1030 is a budget-focused graphics card from NVIDIA. It’s based on the Pascal architecture and supports DirectX 12.0. It has a core clock speed of 1,107MHz and a Boost Clock speed of 1,216MHz. It comes with 3GB of GDDR5 memory. The card supports up to two displays at once, and has a minimum system requirement of Windows 7 or 8.1. The card is available in both a single-slot and a dual-slot configuration.
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