Dreaming of a PC with 192GB of RAM? Dell makes it reality
The catch: Despite a depressed memory market, it's going to cost you
Computerworld - Dell Inc. announced on Tuesday a new PC that, among its other impressive specs, can be upgraded to sport as much as 192GB of ultrafast DDR3 RAM.
The Precision T7500 sports 12 memory slots, each of which can take a PC10600 stick (1333 MHz) of up to 16GB.
Most new desktop PCs have two to four RAM slots that can take up to 4GB modules of DDR2 memory that runs between 400 MHz and 1066 MHz in speed.
Not a high-end gamer PC, the Precision T7500 workstation (which starts at $1,800) is aimed at video game designers, engineers and digital animators.
It's not the only new desktop with huge memory potential. On Tuesday, Lenovo announced its ThinkStation D20 workstation, which can support up to 96GB of 1333 MHz DDR3 RAM.
The main exception is Apple Inc. Its new Mac Pro workstations have a relatively modest upper limit of 32GB of DDR3 RAM.
Build it and the gigabytes will come
Though not commonplace, hundreds of gigabytes of RAM have been around on high-end, multicore PC servers for several years, said Jim McGregor, an analyst at In-Stat. He cited servers that process financial transactions in real time, or security software doing CPU-intensive tasks such as facial recognition, for example.
Also, the five-year-old 64-bit version of Windows Server can handle up to 1TB of RAM, while the new Windows Server 2008 can take advantage of 2TB of RAM. By contrast, such large amounts of RAM haven't been common on desktop PCs because of the predominance of 32-bit versions of Windows XP and Vista, which can only handle about 3GB of RAM.
What's jacking up the memory limits on this crop of workstations and blade servers is one common denominator -- their use of Intel Corp.'s new Nehalem CPU architecture.
Before Nehalem, Intel's PC memory controllers were mounted on the core logic chip set. That meant data traveling between the CPU and the RAM could easily collide with other traffic, McGregor said.
Nehalem uses an integrated memory controller, shortening the distance between the memory and the CPU, and creating multiple, direct pathways between the two, he said.
Also, end users are starting to move to 64-bit versions of Windows Vista. Higher-end flavors such as Vista Business, Enterprise and Ultimate can support PCs with up to 128GB of RAM.
Nam Hyung Kim, an analyst at iSuppli, said PC makers were also taking advantage of the depressed memory market.
"It's a very good opportunity to move to higher-speed RAM," Kim said. "The market is oversupplied with memory right now. You'll pay very little premium if you pick DDR3 RAM instead of DDR2 RAM."
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