DiskMFR News On March 29, Introspect Technology announced the launch of the world’s first GDDR7 memory test system, supporting large-scale parallel, 72-channel, 40 Gbps PAM3 ATE-on-Bench testing, which is claimed to provide the fastest time-to-market for memory and GPU manufacturers.
Introspect has delivered the M5512 GDDR7 memory test system, claimed to be the world’s first commercial solution for testing the new JEDEC JESD239 Graphics Double Data Rate (GDDR7) SGRAM specification.
This system enables graphics memory engineers, GPU design engineers, product engineers in the memory and GPU field, and system integrators to quickly bring new GDDR7 memory devices to market, debug protocol errors, characterize signal integrity, and perform detailed memory read/write functionality stress tests without the need for any additional tools.
The JEDEC Solid State Technology Association officially released the JESD239 GDDR7 memory standard on March 6. The bandwidth provided by JESD239 GDDR7 is twice that of GDDR6, with up to 192 GB/s per device.
JESD239 GDDR7 is the first JEDEC standard DRAM to use the Pulse Amplitude Modulation (PAM) interface for high-frequency operation. Its PAM3 interface increases the signal-to-noise ratio (SNR) for high-frequency operation while also improving energy efficiency. By transmitting 3 bits in 2 cycles with 3 levels (+1, 0, -1), compared to the traditional NRZ (non-return to zero) interface which transmits 2 bits in 2 cycles, PAM3 offers a higher data transfer rate per cycle, thus enhancing performance.
The M5512 GDDR7 memory test system is a desktop test and measurement instrument containing 72 high-performance pins, each capable of operating at 40 Gbps in PAM3 mode. Each pin includes bidirectional circuits for read/write operations and a complete set of analog characterization functions.
AMD, Micron, Nvidia, Samsung, and SK Hynix have all expressed support for the GDDR7 standard. After Samsung showcased GDDR7 memory at the Nvidia GTC 2024 conference, two memory models, K4VAF325ZC-SC32 and K4VAF325ZC-SC28, are now listed on Samsung Semiconductor’s official website, offering speeds of 28Gbps/32Gbps and a capacity of 16Gb each.
SK Hynix has indicated that it is developing faster memory modules, aiming for a higher speed of 40Gbps.
The upcoming Nvidia RTX 50 series graphics cards, expected to be released by the end of the year, will be the first products to use GDDR7 memory, and IT Home friends can look forward to further news.
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