The fast, agile, and resilient X6

If your business demands the highest performance in an x86 system, the IBM System x3950 X6 eight-socket server is designed to easily scale performance and manage large amounts of data reliably. Featuring IBM enterprise X-Architecture® innovations and Intel® Xeon® Processor E7 v2 families, applications can perform 100 percent faster1. And by replacing external SAN/NAS storage units with high-capacity internal IBM eXFlash memory-channel storage, you can also reduce infrastructure costs and complexity by up to 43 percent2.

As a result, the x3950 X6 server helps deliver better, more efficient business outcomes:

  • SQL Server 2014 + X6: Dynamic Duo!

    Discover how x3850 X6 + Microsoft SQL Server 2014 revolutionize data warehousing capabilities.

  • X6 + DB2 = FAST

    New X6 technology and DB2® with BLU Acceleration provides a 148X performance improvement.

  • X6 design excellence

    X6 was the only B2B server named a finalist in the IDSA 2014 IDEA competition.

Key features


Fast application performance


Agile design characteristics


Resilient enterprise platform


Product details

1 100% performance improvement is based on preliminary results of SPECint*_rate_base2006, SPECfp*_rate _base2006, and TPC-E benchmarks, plus performance gains from eXFlash DIMM storage. SPEC and TPC benchmark results will be available at www.spec.org and www.tpc.org, respectively, after 2/18/14. Configurations: 4-socket x3850 X6 server using Intel Xeon processor E7-4890 v2 vs. 4-socket server using the previous top-of-the-line E7-4870 (v1).

2 Based on a 2:1 server consolidation from improved performance, and reduced hardware and licensing cost by replacing 28.8TB of external SAN with 3.2TB of internal eXFlash DIMM storage on the server, reducing top-of-rack switching and networking hardware, and managing performance with IBM FlashCache and Storage Accelerator software. Prices as of 2/18/2014.

3 x3850 X6 without eXFlash DIMMs can support up to 25.6TB of Flash storage using 16 x eXFlash 1.8” 400GB SSDs and 8 x 2.4TB MLC Duo Adapters. An x3850 X6 with eXFlash DIMMs can support up to an additional 12.8TB Flash storage leveraging 32 x 400GB eXFlash DIMMs for a total of 38.4TB) of flash storage in the server.

4 Laboratory testing shows eXFlash DIMMs can deliver 3 times lower latency (<5 microsecond) than PCIe based flash (15-19us).

5 When a newer generation of processor and memory technology becomes available, Compute Books can be replaced with newer ones. (All Compute Books must use matching technology.)

Contact Lenovo

Lenovo acquires IBM x86 systems

These IBM x86 products are now products of Lenovo in the U.S. and other countries. IBM will host x86-related content on ibm.com until migrated to Lenovo. During the transition, please interpret references to IBM in relation to transitioned products as Lenovo.

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