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In November 2005, 41 systems appeared in the TOP500 list.

Rank System Procs Memory(GB) Rmax (GFlops) Rpeak (GFlops) Vendor
33 eServer pSeries 690 (1.9 GHz Power4+) 2176 N/A 9241 16538 IBM
34 eServer pSeries 690 (1.9 GHz Power4+) 2176 N/A 9241 16538 IBM
45 eServer pSeries p5 575 1.5 GHz 1536 N/A 7395 9216 IBM
56 eServer pSeries 690 (1.7 GHz Power4+) 1600 N/A 6188 10880 IBM
80 eServer Blue Gene Solution 2048 N/A 4713 5734 IBM
104 BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet 3200 N/A 3755 19584 IBM
107 BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet 1500 N/A 3755 9180 IBM
111 xSeries Xeon 3.06 GHz - Gig-E 1128 N/A 3755 6903.36 IBM
112 xSeries Xeon 3.06 GHz - Gig-E 1128 N/A 3755 6903.36 IBM
140 Jupiter
Fire V20z Cluster, Opteron 2.2 GHz, Gig Ethernet		 1024 1024 3146 4394 Sun
175 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
176 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
177 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
178 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
179 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
180 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
181 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
182 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
183 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
233 Blade Cluster BL-20P, Pentium4 Xeon 3.06 GHz 760 N/A 2600 4651.2 HP
268 BladeCenter HS20 Cluster, Xeon EM64T 3.2 GHz - Gig-Ethernet 600 N/A 2404.52 3840 IBM
269 Blade Cluster BL-25P, Opteron 2.4 GHz, GigEthernet 896 N/A 2404.1 4300.8 HP
270 Blade Cluster BL-25P, Opteron 2.4 GHz, GigEthernet 896 N/A 2404.1 4300.8 HP
271 xSeries Xeon 3.06 GHz - Gig-E 640 N/A 2403.2 3916.8 IBM
279 SGI Altix 1.3 GHz 512 N/A 2338 2662.4 SGI
307 SP Power3 375 MHz 16 way 1920 N/A 2106 2880 IBM
333 xSeries Xeon 2.8 GHz, Gig-Ethernet 2256 N/A 2026 12633 IBM
354 BladeCenter Xeon 2.8 GHz, Gig-Ethernet 650 N/A 2026 3640 IBM
357 SX8/128M16 128 N/A 2017 2048 NEC
384 BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet 512 N/A 1922.56 3133.44 IBM
413 SuperDome 1 GHz/HyperPlex 832 N/A 1797.1 3328 HP
414 SuperDome 1 GHz/HyperPlex 832 N/A 1797.1 3328 HP
425 SuperDome 875 MHz/HyperPlex 960 N/A 1780.8 3360 HP
435 xSeries Cluster Xeon 2.4 GHz - Gig-E 1100 N/A 1755 5280 IBM
439 Integrity Superdome, Itanium2 1.5 GHz, HyperPlex 512 N/A 1751 3072 HP
447 BladeCenter Cluster Xeon 2.8 GHz, Gig-Ethernet 520 N/A 1732.46 2912 IBM
460 Integrity Superdome, 1.5 GHz, HPlex 384 N/A 1716.5 2304 HP
463 eServer pSeries 690 (1.9 GHz Power4+) 352 N/A 1714 2675.2 IBM
479 eServer Cluster Opteron, 2.6 GHz, Myrinet 558 N/A 1686.78 2901.6 IBM
486 SuperDome 875 MHz/HyperPlex 896 N/A 1662.1 3136 HP
488 SuperDome 875 MHz/HyperPlex 896 N/A 1662.1 3136 HP