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 2GB 2x1GB RAM Memory for Apple Power Mac G5 Dual 2GHz M9590LL A $26.00 |
 Apple MAC Power pc Mac DUAL G5 Desktop $38.00 |
 Apple PowerMac G5 Board 820 1592 A for Dual 25GHz LCS $99.99 |
Apple Dual Powermac
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Apple Power Mac G5 - Dual 2.7 GHz, 250GB HD - With OS X Server $999.00 |
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APPLE POWERMAC G5 DUAL 500 GB HD 4 GB RAM SUPER DR 1 TB $649.00 |
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Apple Power Mac G5 Desktop/DUAL 2.5/4GB/500GB/17" ADC/KEYBOARD & MOUSE $599.99 |
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APPLE POWERMAC G5 A1117 DUAL CORE PPC G5 2.5GHz(x2) 4096MB DVD-RW NO HDD $599.96 |
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Apple PowerMac G5, 23" display, wiFi, BT Bundle, 1.8 GHz dual, 2GB RAM,500GB HDD $499.00 |
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Apple Power Macintosh G5 Dual Core (2.0) late 2005 $500.00 |
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PowerLogix DUAL 1.8 GHz CPU upgrade Apple Power Mac G4 for 100 MHz bus macs only $499.99 |
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Apple Power Mac G5 Desktop (June, 2004) - - 8 GB RAM, Dual 2.0GHz PowerPC G5 $400.00 |
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Apple Powermac Dual 2.5 Ghz G5 Graphics Workstation - Wireless! $375.00 |
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Apple Powermac Dual Processor 2.7 Ghz G5 Graphics Workstation - Wireless $350.00 |
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Apple Powermac G5 2.3ghz Dual Processor 8gb 160gb HD 16x Superdrive Radeon 9600 $369.00 |
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Apple Power Mac G5 Dual Core 2GHz, 7Gb Ram Leopard 10.5.8 $319.00 |
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APPLE POWERMAC G5 DUAL 2.7GHz,500GB,4.0Gb,DVD/RW OS 10.5.8 $349.99 |
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Apple Power Mac G5 2.0 GHz Dual Processor / 1GB memory / 160GB HDD $269.00 |
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Apple Power Mac G5-Late 2005-Dual Core PowerPC 2GHz-8GB RAM-160GB-OS X 10.4.3 $235.77 |
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Apple Power Mac G5 Desktop Dual 2.5 2GB MEMORY $250.00 |
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Apple Power Mac G5 A1117 Dual 2GHz 1GB Ram Geforce 6600LE 150GB HD ~NICE! $249.99 |
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APPLE POWERMAC G5 DUAL 2.7GHz,200GB,4.0Gb,DVD/RW OS 10.5.8 $299.99 |
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Apple Mac Powermac G5 Dual 2.0GHz 150GB HD 512GB RAM! $299.00 |
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Apple Power Mac G5 Desktop M9457LL/A DUAL PPC G5 2.5GHz 1.5GB 80 GB HDD DVD-RW $289.00 |
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APPLE POWER MAC G4 1.25 DP (MDD ) WITH DUAL 1.25 GHz PROCESSOR, 80 GB HD $289.00 |
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16GB 8x2G Memory RAM Apple Power Mac G5 Dual Core 2.0GHz/2.3GHz/Quad Core 2.5GHz $279.90 |
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APPLE POWERMAC G5 DUAL 2.5GHz,200GB,4.0Gb,DVD/RW OS 10.5.8 $279.99 |
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Apple PowerMac G5 a1177 Dual Core 2.0Ghz x2 2GB 250GB 10.5 Leopard DVDRW video $239.99 |
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Apple PowerMac G5 Dual Processor 2.0Ghz 2GB 250GB DVDRW ATI Video 256mb A1047 $236.69 |
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Apple Power mac G5 Tower Dual 2.5ghz 10.5 512MB Leopard 9600XT 128MB PCI-X $215.00 |
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Apple Power Mac G5 desktop computer, dual processor $199.00 |
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Apple Power Mac G5 Dual Core 2.0 GHz 3.5GB RAM 80GB HDD " WORKS GREAT " $199.99 |
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Apple PowerMac G5 Dual Processor 2.0Ghz 2GB 250GB OS DVDRW ATI Video 128mb A1047 $202.39 |
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Apple Powermac G5 Dual 2ghz 2gb 160gb hd w\ leopard 10.5 $200.00 |
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Apple PowerMac G5 PowerPC Dual 2GHz 2GB 250G Computer with leopard, DVD Writer $179.00 |
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Apple PowerMac G5 Quad 2.5GHz Processor CPU 661-3729 630-7689 630-7419 dual pump $229.99 |
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PowerMac G5 Dual 1.8GHz/2GB/160GB/DVD-RW 10.5.8 A1047 $185.00 |
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Apple Power mac G5 Dual Core Tower 2.3ghz 512MB Nvidia Geforce 6600 needs power $185.00 |
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Apple PowerMac G5 Dual Processor 2.0Ghz 2GB 160GB 10.5 DVDRW w/ FX5200 $182.39 |
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Apple Power Mac G5, 2GHz Dual Processor, 2GB Ram, OSX 10.5, 160GB HDD, A1047 DVD $175.00 |
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Apple Power Mac Dual CPU G5 2X 2.0GHz,250GB HD,1 GB RAM, DVD+/-RW $219.99 |
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Apple Power Mac G5 Dual 2X 2.0 GHz,160 GB HD, 1.0GB RAM, DVD+/-RW $212.99 |
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Apple Power Mac G5, 2GHz Dual Processor, 2GB Ram, OSX 10.5, 160GB HDD, A1047 DVD $165.00 |
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8GB (8x1GB) Memory RAM Apple Power Mac G5 Dual 1.8GHz/2.0GHz/2.3GHz/2.5GH/2.7GHz $199.90 |
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Apple Power Mac A1047 Desktop Dual G5 2.3 Ghz w/250 GB HD/2 GB RAM/DVDRW $150.00 |
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Apple PowerMac G5 Dual 2.5GHz Logic Board 820-1592-A 630-6911/T6907 661-3164 $199.95 |
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PowerMac ATI RADEON 9650 DUAL DVI 8X AGP VIDEO CARD P/N: 109-A58503-20, 630-7150 $199.95 |
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Apple Powermac G5 Dual 2.0Ghz Logic Board 820-1475-A 630-4850 630T4831 $199.95 |
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Apple PowerMac G5 Dual 2GHz 160GB M9455LL/A $149.99 |
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APPLE POWERMAC QUICKSILVER G4 DUAL 800MHZ/1GB/2X 80GB/AIRPORT WIRELESS M8705LL/A $195.00 |
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Apple Power Mac G5 Dual 2.0 GHz June 2004 PCI-X Computer - tested $194.99 |
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Apple A1047 Power Mac G5 Dual 1.8 GHz NVidia A1646 $194.99 |
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Apple 256MB Powermac G5 Single & Dual Processor DVI/DVI nVidia GeForce NV40 6800 $189.53 |
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Apple PowerMac MDD Dual 1.42 GHz G4 1.5GB RAM 120GB HD FW800 For Parts $139.00 |
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Apple Power Mac G5 Desktop dual 2.0Ghz ,2GB,160GB,Superdrive,OS X 10.4.6 $149.00 |
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APPLE Power MAC Mirror G4 Dual Processor 2x 867Mhz 1GB 80GB 10.4.11 Mac OS Combo $159.99 |
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Apple Power Mac G5 Dual 2.0 GHz 2003 PCI-X Computer - tested $184.99 |
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8GB Kit Memory RAM Apple Power Mac G5 (Dual 2.3GHz) DDR $182.06 |
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8GB Kit Memory RAM Apple Power Mac G5 (Dual 2.7 GHz) DD $182.06 |
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8GB Kit Memory RAM Apple Power Mac G5 (Dual 2.0 GHz) DD $182.06 |
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8GB Kit Memory RAM Apple Power Mac G5 (Dual 2.5 GHz) DD $182.06 |
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8GB Kit Memory RAM Apple Power Mac G5 (Dual 1.8 GHz) DD $182.06 |
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Apple G5 PowerMac A1177 Dual Core 2 GHz, 2 GB RAM, 160 GB Leopard 10.5.8 $135.00 |
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Apple 820-1475-A Power Mac G5 Dual 1.6GHz Logic Board With CPUs $179.99 |
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Apple Powermac MDD G4 1.25ghz DP DUAL Mirror OS 10.5 $125.00 |
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Apple G4 Quicksilver Tower Dual Boot OS X \ Linux ~LOOK!~ $175.00 |
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Apple Power mac G5 Tower Computer Dual CPU 2.5ghz 1GB DDR PCI-X PARTS DVDRW $135.00 |
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8GB Kit 400MHz Apple Power Mac G5 (Dual 2.0 GHz) Memory RAM $170.00 |
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APPLE G5 POWER MAC COMPUTER SYSTEM - 2GHz DUAL CORE, 4½GB, DUAL HDs $129.95 |
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Sonnet Dual 1.3 GHz CPU upgrade Apple Power Mac G4 - tested and works $159.99 |
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8GB 8x 1GB RAM MEMORY APPLE POWERMAC G5 DUAL QUAD CORE $155.00 |
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APPLE POWERMAC G5 DUAL CORE 1.8 GHZ TOWER 1.5GB RAM DVDRW 160GB FREE SHIPPING! $155.00 |
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Apple Power Mac G5 Desktop Dual 2.0ghz\4.5gb\320gb hdd CDRW-DVD-RW Superdrive $150.00 |
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Power Mac G5 Power Mac 7.3 Dual Core 2 GHz 80 GB HD 1 GB Ram DVD Drive 128 Video $99.99 |
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APPLE POWERMAC G5 DUAL LOGIC BOARD 820-1592-A *RQQA* $149.99 |
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Genuine Apple PowerMac G5 Dual LogicBoard 820-1592-A MLB Working USA $149.95 |
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8GB 4x2GB Memory RAM Apple Power Mac G5 Dual Core 2.0GHz/2.3GHz/Quad Core 2.5GHz $144.90 |
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Apple Power Mac G5 Dual w/ Power Mac G5 ATI Radeon 9650 Card $148.50 |
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Apple Power Mac G5 (7,3) 1.8Ghz Dual Processor, 2GB Ram, 80GB HDD, Tested to Bio $119.75 |
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8GB 8x1GB Memory RAM Apple Power Mac G5 Dual Core 2.0GHz/2.3GHz/Quad Core 2.5GHz $142.90 |
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8GB 8x1ecc Memory RAM Apple PowerMac G5 Dual Core 2.0GHz/2.3GHz/Quad Core 2.5GHz $136.90 |
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TECH - Mac Pro APPLE POWERMAC G5 2.7GHZ DUAL PPC 4GB RAM_1.mov
Apple Dual Powermac
What is Multi-threading by Leif Cage
When symmetric multiprocessing (SMP) first became cheap enough to come within reach of the average PC user, many hardware enthusiasts eager to get in on the SMP craze were asking what exactly (besides winning them the admiration and envy of their peers) a dual-processing rig could do for them. It was in this context that the PC crowd started seriously talking about the advantages of multi threading. Years later when Apple brought dual-processing to its PowerMac line, SMP was officially mainstream, and with it multi threading became a concern for the mainstream user as the ensuing round of benchmarks brought out the fact you really needed multi threaded applications to get the full benefits of two processors.
Even though the PC enthusiast SMP craze has long since died down and, in an odd twist of fate, Mac users are now many times more likely to be sporting an SMP rig than their x86-using peers, multi threading is once again about to increase in importance for PC users. Intel's next major IA-32 processor release, codenamed Prescott, will include a feature called simultaneous multi threading (SMT), also known as hyper-threading. To take full advantage of SMT, applications will need to be multi threaded; and just like with SMP, the higher the degree of multi threading the more performance an application can wring out of Prescott's hardware.
Intel actually already uses SMT in a shipping design: the Pentium 4 Xeon. Near the end of this article we'll take a look at the way the Xeon implements hyper-threading; this analysis should give us a pretty good idea of what's in store for Prescott. Also, it's rumored that the current crop of Pentium 4's actually has SMT hardware built-in, it's just disabled. (If you add this to the rumor about x86-64 support being present but disabled as well, then you can get some idea of just how cautious Intel is when it comes to introducing new features. I'd kill to get my hands on a 2.8 GHz P4 with both SMT and x86-64 support turned on.)
SMT, in a nutshell, allows the CPU to do what most users think it's doing anyway: run more than one program at the same time. This might sound odd, so in order to understand how it works this article will first look at how the current crop of CPUs handles multitasking. Then, we'll discuss a technique called super threading before finally moving on to explain hyper-threading in the last section. So if you're looking to understand more about multi threading, symmetric multiprocessing systems, and hyper-threading then this article is for you.
As always, if you've read some of my previous tech articles you'll be well equipped to understand the discussion that follows. From here on out, I'll assume you know the basics of pipelined execution and are familiar with the general architectural division between a processor's front end and its execution core.
About the Author
Leif Cage writes about Dedicated Servers, UK Dedicated Servers and SEO.