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  UNIX servers: eServer p5 and pSeries  
 
 
Entry servers
   
IBM System p5 505 Express
 (Rack-mount)
As a member of the IBM System p5 T Express family of servers with proven IBM POWER5 T technology, the p5-505 Express system sets a new standard for value in a high-density 1U entry UNIX ® or Linux ® system. It offers exceptional performance for infrastructure and HPC applications without compromising availability, flexibility or security-at the value price of an entry-level system. Its technological and operational features, and extremely affordable price, make the p5-505 Express server an exceptional choice for smaller and mid-size companies.
 
Processor One or two POWER5
Clock rates (Min/Max) 1.50, 1.65GHz
System memory (Std/Max) 1GB / 32GB
Internal storage (Std/Max) 73.4GB / 600GB
Performance (rPerf range)*** 3.51 / 9.86
 
     
     
 
IBM System p5 520 Express
 (Rack-mount/Deskside)
As a member of the IBM System p5™ Express family of servers with proven IBM POWER5+™ technology, the System p5 520 Express system sets a new standard for performance in a mid-range UNIX® or Linux® system. It is designed to offer uncompromising availability, flexibility and security-at the value price of an entry-level system. Its technological and operational features and high performance make the p5-520 Express server an exceptional choice for database and business applications in companies of all sizes.
 
Processor Two POWER5+
Clock rates (Min/Max) 1.90GHz
System memory (Std/Max) 1GB / 32GB
Internal storage (Std/Max) 73.4GB / 16.8TB (with optional I/O drawers)
Performance (rPerf range)*** 11.16
 
     
     
 
IBM System p5 550 Express
 (Rack-mount/Deskside)
As a member of the IBM System p5™ Express family of servers with proven IBM POWER5+™ technology, the System p5 550 Express sets a new standard for price/performance in a mid-range UNIX® or Linux® system. It offers on demand computing without compromising availability, flexibility or security-at an affordable price for entry-level system. Its technological and operational features and outstanding price/performance make the p5-550 Express server an exceptional choice as a scalable database or application server for mid-sized companies or as a reliable regional server for large enterprises.
 
Processor Two or four POWER5+
Clock rates (Min/Max) 1.90GHz
System memory (Std/Max) 1GB / 64GB
Internal storage (Std/Max) 73.4GB / 31.2TB (with optional I/O drawers)
Performance (rPerf range)*** 11.16 / 22.28
 
     
     
 
IBM System p5 550Q Express
(Rack-mount/Deskside)
As a member of the IBM System p5™ Express family of servers with proven IBM POWER5+™ technology, the System p5 550Q Express system sets a new standard for price/performance in an entry UNIX® or Linux® system. It is designed to offer uncompromising availability, flexibility and security-at affordable prices for entry-level systems. Their technological and operational features and exceptional price/performance make the p5-550Q Express server an outstanding choice as a scalable database or application server or a server consolidation platform for multiple workloads.
 
Processor Four or eight POWER5+
Clock rates (Min/Max) 1.50GHz
System memory (Std/Max) 1GB / 64GB
Internal storage (Std/Max) 73.4GB / 31.2TB (with optional I/O drawers)
Performance (rPerf range)*** 18.20 / 34.46
 
     
     
 
Mid-range: UNIX servers
   
IBM eServer p5 570 Express
 (Rack-mount)
Unique building block design for scalable growth from 2 to 8 POWER5 processors and the latest innovations in optional IBM Virtualization Engine.
 
Processor 64-bit POWER5
Clock rates (Min/Max) 1.50GHz
System memory (Std/Max) 2GB / 512GB
Internal storage (Std/Max) 36.4GB / 22.9TB
Performance (rPerf range)*** 9.13 to 34.46
 
     
     
 
IBM eServer p5 570
 (Rack-mount)
Unique building block design for scalable growth from 2 to 16 POWER5 processors and the latest innovations in optional IBM Virtualization Engine and Capacity on Demand.
 
Processor 64-bit POWER5
Clock rates (Min/Max) 1.65GHz / 1.90GHz
System memory (Std/Max) 2GB / 512GB
Internal storage (Std/Max) 36.4GB / 38.7TB
Performance (rPerf range)*** 9.86 to 77.45
 
     
     
 
High-end: UNIX servers
   
IBM eServer p5 575 cluster node
The IBM ® p5 575 cluster node is designed as a high-powered building block for "extreme" performance computing applications. Specifically designed for high-performance, high memory-bandwidth application requirements, the p5-575 delivers outstanding sustained throughput. With innovative single core IBM™ POWER5™ processors packed into a highly dense enclosure, the p5-575 delivers very high memory bandwidth and twice the per processor cache of any other POWER5 SMP system
 
Processor 64-bit POWER5
Clock rates (Min/Max) 1.90GHz
System memory (Std/Max) Minimum 1GB, Minimum Recommended: 16GB, Maximum 256GB
Internal storage (Std/Max) 73.4GB to 1.4TB
Performance (rPerf range)*** 46.36
 
     
     
 
IBM eServer p5 590
  
The IBM ® p5 590 server uses fifth-generation 64-bit IBM POWER5™ processors in up to 32-way symmetric multiprocessing (SMP) configurations to provide the power, flexibility, scalability and security needed for mission-critical applications at a very affordable price.
 
Processor 64-bit POWER5
Clock rates (Min/Max) 1.65GHz
System memory (Std/Max) 8GB / 1TB
Internal storage (Std/Max) 72.8GB / 9.3TB
Performance (rPerf range)*** 41.68 to 151.72
 
     
     
 
IBM eServer p5 595
  
The p5 595 server uses fifth-generation 64-bit IBM POWER5™ processors in up to 64-way SMP configurations. p5-595 is IBM's most powerful UNIX/Linux system with the power, flexibility, scalability and security needed to run mission-critical enterprise applications.
 
Processor 64-bit POWER5
Clock rates (Min/Max) 1.65GHz / 1.90GHz
System memory (Std/Max) 8GB / 2TB
Internal storage (Std/Max) 72.8GB to 14.0TB
Performance (rPerf range)*** 80.86 to 306.21
 
     
       
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