| Microway Alpha Powered Workstations & Servers |
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21264 Alpha Systems
Value-priced, super-computing power
Call us today for exceptional pricing on 1U CS20 dual-Alpha 833MHz, 2GB memory configurations
Microway Alpha Powered Number
Smasher® 264DP 833MHz Systems
1.0 Gigaflops to 2.7 Gigaflops peak performance depending
upon processor configuration!
5.2 GB/s theoretical burst memory bandwidth!
Microway's version of Compaq's DS20 features the Compaq Dual
Alpha 21264DP motherboard with 833MHz processor(s); 4 or 8 MB cache;
up to 4 GB memory; and free technical support for the lifetime
of your system!
Microway Alpha Powered Number Smasher®
UP2000+ Dual 833MHz
1.3 Gigaflops to 3.0 Gigaflops peak performance depending
upon processor configuration!
2.6 GB/s theoretical burst memory bandwidth.
Available in 667MHz with 4MB cache, or 833MHz with 4 MB cache.
All Microway Alpha 21264 Workstations and Servers are custom
configured to your specifications. The configurations listed
here are samples, demonstrating what kind of configuration
you can expect. Rack Mount Chassis are available for all single
and dual 21264 Alpha Workstations and Servers. Internal and
External RAID Storage systems are available with all Microway
Workstations, Servers, and Clusters, and are configured for
you by Microway under your choice of Operating System.
Microway
offers the newest, fastest, most reliable, and best priced Alpha
Workstations and Servers in the industry. Call our technical
sales staff at 508-746-7341 and you'll understand why
Microway's customers have kept coming back since 1982!
To help clarify which 21264-based system is right for you:
These systems are the first to use a 6 port crossbar
switch chipset to connect dual CPUs, dual memory systems,
and dual PCI busses. Depending upon the size and
configuration of the crossbar, you will get a different
effective memory bus width. The 8 D-chips used in the
crossbar on the 264DP provide an effective databus width
of 512 bits and an upper memory capacity of 4GB. For
reference purposes, the UP2000 and the XP1000 each use 4
D-chips, and have an effective memory bus width of 256
bits. The DS10 only uses 2 D-chips and an effective
databus of 128 bits.
The theoretical burst memory bandwidth of these configurations
vary from 5.2GB/s (264DP), 2.6GB/s (UP2000 and XP1000) and 1.3GB/s
(DS10), however the achieved
bandwidth is frequently a very strong function of the order
in which information is being read from memory.
Depending upon what kind of problems you are solving, you
might have different needs. Microway has been dealing
with these issues for over 20 years, and has the most
experience configuring workstations, servers,
and clusters to fit your needs.
While the 21264DP runs at 5.2GB/s, a typical Intel®
Pentium® memory bus runs at 400 MB/sec. For large memory-bound
problems, such as those encountered in real world CFD and
other matrix-bound operations, this results in a tenfold improvement
in performance over the equivalent Intel solution, and provides
the throughput of approximately three Cray CF90s. For applications
which are communications bound, such as web applications,
the system features a pair of 64-bit PCI busses with
an aggregate bandwidth of 532 MB per sec.
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