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In November 2006, 30 systems appeared in the TOP500 list.

Rank System Procs Memory(GB) Rmax (GFlops) Rpeak (GFlops) Vendor
15 Cray XT3, 2.6 GHz dual Core 7812 N/A 32498 40622 Cray Inc.
20 Darwin
PowerEdge 1950, 3.0 GHz, Infinipath		 2340 N/A 18270 28080 ClusterVision/Dell
38 eServer pSeries p5 575 1.9 GHz 2240 N/A 13990 17024 IBM
39 eServer pSeries p5 575 1.9 GHz 2240 N/A 13990 17024 IBM
43 eServer pSeries p5 575 1.5 GHz 2560 N/A 12940 15360 IBM
67 eServer pSeries 690 (1.9 GHz Power4+) 2176 N/A 9241 16538 IBM
127 Blade Cluster BL-25P, Opteron 2.4 GHz, GigEthernet 1880 N/A 5044 9024 HP
132 BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet 2000 N/A 4924.8 8800 IBM
133 BladeCenter LS20, Opteron 2.2 GHz Dual core, GigEthernet 2000 N/A 4924.8 8800 IBM
148 eServer Blue Gene Solution 2048 N/A 4713 5734 IBM
166 CX1
PowerEdge 1955, 2.66 GHz, Gigabit/10G Infiniband		 1680 1680 4404 17922.2 Dell
196 JS20 Cluster, PPC 970, 2.2 GHz, Myrinet 736 N/A 4149.62 6476.8 IBM
243 BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet 3200 N/A 3755 19584 IBM
248 BladeCenter HS20 Xeon 3.06 GHz, Gig-Ethernet 1500 N/A 3755 9180 IBM
264 xSeries Xeon 3.06 GHz - Gig-E 1128 N/A 3755 6903.36 IBM
265 xSeries Xeon 3.06 GHz - Gig-E 1128 N/A 3755 6903.36 IBM
300 BladeCenter HS20 Cluster, Xeon EM64T 3.6 GHz, Gig-Ethernet 952 N/A 3594.87 6854.4 IBM
307 SuperDome 1 GHz/HyperPlex 1664 N/A 3527.7 6656 HP
330 Integrity Superdome, Itanium2 1.5 GHz, HyperPlex 768 N/A 3433 4608 HP
375 Jupiter
Fire V20z Cluster, Opteron 2.2 GHz, Gig Ethernet		 1024 1024 3146 4394 Sun
440 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
441 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
442 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
443 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
444 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
445 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
446 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
447 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
448 Blade Cluster BL-20P, Pentium4 Xeon 3.2 GHz 800 N/A 2862.1 5120 HP
467 SuperDome 875 MHz/HyperPlex 1536 N/A 2848 5376 HP