IBM Rivina

Power Architecture
Made by Freescale
PowerPC e series (2006) e200 e300 e500 e600 e5500 e6500 Qor series (2008) QorIQ Qorivva
Made by IBM
POWER ISA (1990) POWER series (1990) POWER1 POWER2 POWER3 POWER4 POWER5 POWER6 POWER7 POWER8 POWER9 PowerPC series (1992) 6xx 4xx 7xx 74xx 970 A2 RS64 (1996) RAD series (1997) RAD6000 RAD750 RAD5500
IBM-Nintendo collaboration
Gekko Broadway Espresso
Other
Titan PWRficient Cell Xenon
Related links
OpenPOWER Foundation AIM alliance RISC Blue Gene Power.org PAPR PReP CHRP AltiVec more...
Cancelled in gray, historic in italic

Rivina is an experimental 64-bit PowerPC microprocessor built by IBM in 2000. It was the successor to "guTS" (Gigahertz Unit Test Site) and the purpose of both was to build a processor able to reach very high frequencies. They were the first microprocessors to reach and surpass the 1 GHz mark.

Project work was conducted by fewer than twenty engineers over a course of two years. The idea was to use aggressive circuit design techniques, a carefully crafted floorplan and microarchitecture while keeping a short six stage pipeline. While guTS only supported a subset of about 100, mainly integer instructions, of the PowerPC instruction set, Rivina used the complete 64-bit PowerPC specification including dual precision floating point and address translation. guTS had a small single cycle 4 kB L1 cache, and Rivina used a two-cycle, two set associative 64 kB cache instead.

The processor comprised over 19 million transistors, manufactured using IBM's CMOS 7S, 0.22 μm copper fabrication process. It was able to reach 1.15 GHz, dissipating 112 watts at 101 °C.

References

This article is issued from Wikipedia - version of the 8/15/2011. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.