IBM has represented his z196 processor at 5.2 GHz, but says the megahertz race will not last much longer. This is not the first time that IBM refers to this chip (see "The fastest CPU in the world"). It is nevertheless surprising that Big Blue comes out this model year sold in a conference as serious as the ISSCCPour recall, the chip provides a gain of 18% while maintaining the same consumption of 260 W compared to running at z10 4.4 GHz.
Servers using six processors, two chips used cache L4 and all consumed 1800 W. IBM explained that he was able to increase the frequency mainly by increasing the fineness of engraving has grown from 65 nm to 45 nm and the use of SOI. At the conference, IBM took the opportunity to first give details on processor architecture.
The z196 uses embedded DRAM chips for memory and manages a performance out-of-order. Big Blue refers to a performance improvement of about 40%. He also detailed his 14-bit cache using SRAM. He explained that the system of consistency is partly responsible for the rise in frequency. The most interesting message from IBM at this conference was probably recall that the Megahertz race could not last much longer.
The fact that it does not show with new CPU frequency is also an obvious sign. According to him, optimizations are still possible, but he admits that IBM is really pushing the latter to the frequency of its processors. To better understand the physical limitations faced by the founders, please read or reread the chapter "Architectural Solutions to challenges power" of our file Miniaturization of transistors and larger wafers: understanding technological issues 
Servers using six processors, two chips used cache L4 and all consumed 1800 W. IBM explained that he was able to increase the frequency mainly by increasing the fineness of engraving has grown from 65 nm to 45 nm and the use of SOI. At the conference, IBM took the opportunity to first give details on processor architecture.
The z196 uses embedded DRAM chips for memory and manages a performance out-of-order. Big Blue refers to a performance improvement of about 40%. He also detailed his 14-bit cache using SRAM. He explained that the system of consistency is partly responsible for the rise in frequency. The most interesting message from IBM at this conference was probably recall that the Megahertz race could not last much longer.
The fact that it does not show with new CPU frequency is also an obvious sign. According to him, optimizations are still possible, but he admits that IBM is really pushing the latter to the frequency of its processors. To better understand the physical limitations faced by the founders, please read or reread the chapter "Architectural Solutions to challenges power" of our file Miniaturization of transistors and larger wafers: understanding technological issues
- IBM and Samsung announce patent cross-license agreement, we pray for a z196-based Galaxy Tab (12/02/2011)
- IBM's new zEnterprise 196 mainframe is a leviathan (22/07/2010)
- IBM's new mainframe, the zEnterprise 196, is a leviathan (22/07/2010)
- IBM's mainframe-blade hybrid to do Windows (12/01/2011)
- Big Blue launches next generation mainframe technology (22/07/2010)
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