IBM Power5

Introduced: 2004-06-11

Description: Successor to Power4 built in 0.13 um technology. The MCM (Multi Chip Module) includes 4 chips with two MultiThreaded cores each presenting a total of 16 virtual cores on the MCM. Each chip also has a 36 MB L3 cache attached for a total of 144 MB of L3 cache on the MCM. Each MCM can be connected to other MCMs through a 4GB/s bus for up to 128-way multiprocessing.

A single core version, also with Simultaneous MultiThreading, may also be launched. Each core includes 120 registers (80 on the Power4) and is said to have 40% to 100% better performance. Will later move to 90 nm with the Power5+ version.
Will be available 2004-06-11.

Type: Processors [Roadmap] [Timeline]

State: Released

Quick Specs

Die size4 x 389 mm2 + L3 cache
Bus speedGX+I/O >6GB/s
L2 cache4 x 3 x 640 KB
L1 cache4 x 64KB I; 32KB D
Process130 nm CuSOI
Core speed1.4 - 2 GHz
Transistors4 x 276 M + L3 cache
Form factor5400 pin
L3 cache4 x 36 MB (off-die, on MCM)
MemoryDDR / DDR-2
TypeServer, 4 x 2 cores

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News clips relating to IBM Power5

Showing 1-25 from 38 results. Page: [1 2 ]

2005-12-19 In the Shadow of Poughkeepsie RealWorldTech [rm]

2005-03-04 IDF: Itanium vs. Power: IBM ditches Itanium support, and Intel follows up by talking smack about POWER. Fight! Fight! Ars Technica [rm]

2004-10-15 IBM's Power5 beast takes on Sun, HP - and IBM: Hitting the 64-way barrier The Register [rm]

2004-10-05 IBM intros Power, EM64T Intel servers The Inquirer [rm]

2004-08-31 AMD Demos Dual-Core Microprocessors: AMD Plugs Dual-Core Chips into Servers Xbit Labs [rm]

2004-08-18 AMD, Motorola to Detail Dual-Core Processors in October Xbit Labs [rm]

2004-08-13 AMD Targets Quad-Core Microprocessors for 2007 Xbit Labs [rm]

2004-08-02 POWER5 Performance Brief Ace's Hardware [rm]

2004-07-13 Big Blue Aims to Thrive on POWER5 HP-Interex [rm]

2004-06-07 IBM's New eServer i5 Achieves Leading Result on SAP(R) Benchmark IBM [rm]

2004-05-26 IPM Special Report (chinese) IBM [rm]

2004-05-03 IBM Unleashes eServer i5 Systems with POWER5 IBM [rm]

2004-05-03 IBM confirms POWER5 server release The Inquirer [rm]

2004-04-19 Power5 OS/400 Servers to Ship by End of June Midrange Server [rm]

2003-11-20 IBM to add clock throttling tech to 90nm G5 chip The Register [rm]

2003-11-01 IBM - Power5, Power5+'s processor specs [rm]

2003-10-29 Fujitsu eclipses Sun: The New SPARCle The Inquirer [rm]

2003-10-24 Multicore processors investigated in detail Ace's Hardware [rm]

2003-10-20 IBM's POWER5: The multi-chipped Monster (MCM) revealed The Inquirer [rm]

2003-10-17 IBM's POWER5 Chip with 8 Cores and 144MB Cache Showcased: Almost 10 Square Centimeters... Xbit Labs [rm]

2003-10-17 Pic of eight way POWER5 with 144MB cache revealed: Yowsa! The Inquirer [rm]

2003-09-16 AMD to pitch Opteron at blades: 30-35W Opterons coming up The Register [rm]

2003-08-20 IBM: Power5 Chip to Tap Threading ExtremeTech [rm]

2003-08-19 IBM Talks Power5 at Hot Chips Conference Computer Business Review [rm]

2003-08-15 Simultaneous Multi-threading Implementation in POWER5 --IBM's Next Generation POWER Microprocessor [rm]

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