Great for small to mid-range businesses, segmented workloads and "fit for purpose" applications.

System x M5 rack servers

IBM System x3250 M5

Built in a single-socket, 1U form factor, the x3250 M5 server is the most compact rack server in the IBM System x® portfolio with room to expand.
 
Form factor 1U rack server
Processor family Intel Xeon E3-1200 v3 series, Intel Core i3 series, Pentium series
Number of processors 1 processor maximum
Memory capacity Up to 32 GB (UDIMM)
Internal storage Up to 12 TB

System x M4 rack servers

IBM System x3750 M4

Dense, 4-socket server features a streamlined design, optimized for price and performance, with advanced flexibility and expandability.
 
Form factor 2U rack server
Processor family Intel Xeon E5-4600 series
Number of processors Up to 4 processors / 32 cores
Memory capacity Up to 1.5 TB / 48 DIMMs
Internal storage Up to 16 TB

IBM System x3650 M4 BD

The IBM x3650 M4 BD is purpose-built with the efficiency, performance and capacity needed for Big Data workloads.
 
Form factor 2U Rack
Processor family Intel Xeon E5-2600 v2 series
Number of processors Up to 2 processors / 24 cores
Memory capacity Up to 512 GB via 16 slots
Internal storage Up to 56 TB

IBM System x3650 M4 HD

This high-density storage server blends outstanding uptime, performance, storage, and I/O flexibility, delivering rock-solid reliability.
 
Form factor 2U rack server
Processor family Intel Xeon E5-2600 v2 series
Number of processors Up to 2 processors / 24 cores
Memory capacity Up to 768 GB / 24 DIMMs
Internal storage Up to 41.6 TB SAS/SATA

IBM System x3650 M4

This versatile two-socket 2U rack server blends outstanding uptime, performance, I/O flexibility, and rock-solid reliability for business critical workloads. With its industry first virtualized benchmark, it is optimized for cloud computing and virtualization.
 
Form factor 2U rack server
Processor family Intel Xeon E5-2600 v2 series
Number of processors Up to 2 processors / 24 cores
Memory capacity Up to 768 GB / 24 DIMMs
Internal storage Up to 25.6 TB (2.5-inch model) or 24 TB (3.5-inch model) SAS/SATA

IBM System x3630 M4

The x3630 M4 offers a cost-effective option to achieve higher performance for data-intensive workloads in a 2-socket, 2U design.
 
Form factor 2U rack server
Processor family Intel Xeon E5-2400 v2 series
Number of processors Up to 2 processors/20 cores
Memory capacity Up to 384 GB/12 DIMMs
Internal Storage Up to 56 TB

IBM System x3550 M4

Dense, affordable and easy-to-use rack solution delivers a pay-as-you-grow design to help lower costs and manage risks.
 
Form factor 1U rack server
Processor family Intel Xeon E5-2600 v2 series
Number of processors Up to 2 processors/24 cores
Memory capacity Up to 768 GB/24 DIMMs
Internal storage Up to 12.8 TB (2.5-inch model) or 12 TB (3.5-inch model) SAS/SATA

IBM System x3530 M4

The x3530 M4 is an entry server that delivers dual-socket, energy-efficient performance in a dense 1U compact footprint to help meet general business requirements.
 
Form factor 1U rack server
Processor family Intel Xeon E5-2400 v2 series
Number of processors Up to 2 processors/20 cores
Memory capacity Up to 384 GB/12 DIMMs
Internal Storage Up to 16 TB

IBM System x3250 M4

Entry 1-socket server provides superior performance in a compact design with flexible options and built-in security and systems management.
 
Form factor 1U rack server
Processor family Choice of: Intel Xeon E3-1200v2 series (4
-core) or Intel Core i3 2100
series or Pentium (2-core).
Number of processors 1 processor maximum
Memory capacity Up to 32 GB / 4 DIMMs
Internal storage Up to 8 TB

IBM System x iDataPlex dx360 M4

The dx360 M4 is a dual-socket, half-depth server that provides high performance, flexibility and energy efficiency for your data center.
 
Form factor 1U rack server / 2U chassis
Processor family Intel Xeon E5-2600 v2 Series
Number of processors 2 processors / 24 cores
Memory capacity Up to 512 GB / 16 DIMMs
Internal storage Up to 8.0 TB per chassis

System x M3 rack servers

IBM System x3755 M3

Price-performance 4-socket server ideal for Java, mid-tier databases, and other mid-sized business applications.
 
Form factor 2U rack server
Processor family AMD Opteron 6300 Series processors
Number of processors Up to four processors / 64 cores
Memory capacity Up to 512 GB
Internal storage Up to 32 TB

IBM System x3650 M3

Efficient 2-socket design for cost-effective computing, with large memory and storage footprint for your business-critical applications.
 
Form factor 2U rack server
Processor family Intel Xeon 5600 series
Number of processors Up to 2 processors / 12 cores
Memory capacity Up to 288 GB / 18 DIMMs
Internal storage Up to 16 TB

IBM System x3550 M3

Dense high-performance server delivers high memory and storage capacity for your business-critical applications.
 
Form factor 1U rack server
Processor family Intel Xeon 5600 series
Number of processors Up to 2 processors / 12 cores
Memory capacity Up to 288 GB / 18 DIMMs
Internal storage Up to 8.0 TB