Feeds

Qimonda samples GDDR 5

Hold up, we're only just adopting version 4

Choosing a cloud hosting partner with confidence

Memory maker Qimonda has begun sampling GDDR 5 video-memory chips, producing what it claimed today was the world's first 512Mb part.

Like past GDDR revisions, GDDR 5 ups the maximum available data transfer rate between video memory and GPU - to 20GB/s, in this case. Error compensation, adaptive interface timing and the ability to adapt the signalling characteristics to match patterns in the data being sent over the bus all contribute to the higher transfer rate.

Currently, the fastest GDDR 4 modules out there offer a throughput of up to 16GB/s. Qimonda preferred to compare its new GDDR 5 chip to GDDR 3, but that's because it's skipping GDDR 4 and going straight to 5.

Qimonda said the upgraded technology also delivers improved power consumption characteristics over its predecessors, though it didn't go into details. GDDR 5, like version 4, is set to 1.5V, but the c chips incorporate a number of techniques to reduce power consumption to below GDDR 4 levels, in part by slowing down unused memory.

Qimonda - the memory business spun out of Germany's Infineon, itself the chip-making off-shoot of Siemens - has a whitepaper on the subject that goes into much greater depth than we can here. You can find the PDF on the company's website.

The company said it expects to release GDDR 5 products commercially some time in 2008.

Security for virtualized datacentres

Whitepapers

A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Storage capacity and performance optimization at Mizuno USA
Mizuno USA turn to Tegile storage technology to solve both their SAN and backup issues.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.