A high-frequency custom CMOS S/390 microprocessor
IBM Journal of Research and Development - Special issue: IBM S/390 G3 and G4
IBM's S/390 G5 Microprocessor Design
IEEE Micro
Deep Submicron Design Techniques for the 500MHz IBM S/390 G5 Custom Microprocessor
ICCD '98 Proceedings of the International Conference on Computer Design
IBM Journal of Research and Development
The S/390 G5 floating-point unit
IBM Journal of Research and Development
IBM Journal of Research and Development
IBM S/390 parallel enterprise server G5 fault tolerance: a historical perspective
IBM Journal of Research and Development
A semi-custom design flow in high-performance microprocessor design
Proceedings of the 38th annual Design Automation Conference
Integrated I-cache Way Predictor and Branch Target Buffer to Reduce Energy Consumption
ISHPC '02 Proceedings of the 4th International Symposium on High Performance Computing
The IBM eServer z990 microprocessor
IBM Journal of Research and Development
Millicode in an IBM zSeries processor
IBM Journal of Research and Development
IBM Journal of Research and Development
The S/390 G5 floating-point unit
IBM Journal of Research and Development
RAS strategy for IBM S/390 G5 and G6
IBM Journal of Research and Development
IBM Journal of Research and Development
The microarchitecture of the IBM eServer z900 processor
IBM Journal of Research and Development
z/CECSIM: an efficient and comprehensive microcode simulator for the IBM eServer z900
IBM Journal of Research and Development
A survey of hardware designs for decimal arithmetic
IBM Journal of Research and Development
Performance innovation in the IBM zEnterprise 196 processor
IBM Journal of Research and Development
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Compared with the G4 microprocessor, the S/390® G5 microprocessor contains many architectural and performance enhancements. The G6 microprocessor represents a technology performance improvement over G5, with system support for additional processors. The G5 processor uses IBM CMOS 6X technology and has a clock frequency of 500 MHz in its fastest models. The G6 uses CMOS 7S technology with a clock frequency up to 637 MHz. The processors include a new IEEE binary floating-point architecture and additional reliability-availability-serviceability (RAS) improvements. The processor has significant performance improvements, including a larger level-1 (L1) cache, enhancements to the instruction fetch buffers, a branch target buffer (BTB), enhancements for a number of instructions, a new quiesce mechanism for instructions that modify translation lookaside buffer (TLB) entries, and a new level-2 (L2) cache and memory subsystem.